game-development

[proven frigate]

@slim widget how would u install any other package besides pygame. think about it.

[slim widget]

i just write a code in the pip package

[broken silo]

itch.io is soo good for sharing your projects

and discord

of course

who uses chrome os here

[marble jewel]

Just released an update to the Isometria demo. Version 0.4.8

https://steamcommunity.com/games/2596940/announcements/detail/3868092443218304468

Includes the following changes:

V 0.4.8

UI:
Improved ingredient and recipe icon frame
Improved font system
Added Recipe Book
Added a message to inform players if someone spawned a boss
Added some messages to inform the player of their actions
Added messages to inform the player if their spawnpoint was set or reset

Items:
Increased the power usage of the second tier wands
Trees now drop plant fiber when chopped down
Added mushroom stew
Reduced regen bonus and buff length of cooked meat
Items scooped up by the shovel no longer stack with other items in the world as they are scooped
Items produced by interacting with an object (mushrooms and flowers) will no longer stack with
other item stacks already in the world

Units:
Added Goober
Ghouls will no longer spawn at night unless the player is level 2
Critters and Units will no longer spawn if a boss is currently spawned on that level

Networking:
Added a version check to the server client handshake - older versions will no longer work with this
version of the game.

Other:
Night time now starts later and is 2 in game hours shorter
Added missing special characters to the small font
Fixed a bug where certain server properties were not being reset between sessions
Fixed a bug where entering the gameover screen while paused would result in a stuck game state
Fixed a bug where respawning while on the pause menu would not close the gameover screen
Fixed a bug where too many sounds playing at once could crash the game

[vital mulch]

Hey I need someone to help me with a school project using basic sprites, grouping, and collisions. Could anybody be willing to help in a call? (Pygame). Just trying to make that game where you bounce a ball into the bricks off of your little platform and break them.

[vagrant saddle]

like that ? https://pmp-p.github.io/pygame-breakout-wasm/index.html

[vital mulch]

Imma need the code for it lol

Can't be too complicated and I'd need it to look like the one I've been working on in class.

[vagrant saddle]

it may be actually a bit too good / textbook because it uses proper game states https://github.com/pmp-p/pygame-breakout-wasm/

but i guess you could jump into play state directly 😉

[cyan citrus]

I like it, but is there a way to change the controls for movement? unless im blind

[blazing void]

Hey, I need help with this code: https://pastebin.com/y5gaajMi

I try to make an full/real random labyrinth, to test out some path finding algorithm. The problem is that my Explorer, so my path finding algorithm start and end by another positions than they should. They should start in the middle of the green box/rectangle and stop in the middle of the red rectangle. So what I have to edit?

[limber veldt]

Any thoughts? I'm currently sending images to objects and those objects instancing other objects using those images. Like enemy explosion sprite images. I send them to each enemy so when it dies, it can instance the explosion. What if I instance the explosion in main and send it to the enemy then the enemy just drops it into the group so it can then be drawn and updated...

Actually, I don't think my explosion logic could work with that setup

[red bone]

any workaround for pyglet applications crashing when using pytoexe to compile them>?

[obsidian spear]

sorry, I didn't code that it just works with zqsd (I'm on azerty keyboard)

[grand raven]

tkinter or turtle py for making games

[night acorn]

i have written q-learnnig algorithm but it takes too long him to learn, here is the code: https://codeshare.io/X8Rv9z

[median linden]

does anybody have any ideas for the second level of my pacman clone Python Man

[marble jewel]

Isometria Devlog 36 - Recipe Book, Goober, Version Checking! - Made with Pygame and Python - https://youtu.be/Z2TzQNYxxHs

[gloomy kayak]

guys can i get a base code on how to rotate only once while moving an object and not like rotating in every step? kinda new and confused with this...

[dry cloak]

what library are you using

[tulip lily]

I am working on a snake game

I downloaded the code from github to understand

I dont understand , how is the snake able to change its direction as I press the arrows

I know the key input and stuff but I don't exactly understand where in the code does it actually alter snake's parameters so as to alter its direction

[dry cloak]

Find where the key inputs are, and see what it does when a key press is detected

[barren shell]

Try use bool variable that ain't allow to rotate if it's set to false. Or use FSM

Fsm is better and harder but useless if you aren't going to extend your conditions

[gloomy kayak]

thankss, i already did itt

[barren shell]

glad to help u😊

[blissful venture]

I did import pygame and it gives this error

I have installed pygame

[frozen dawn]

You probably have two different python versions, try using py -m pip install pygame and py snek.py

[median linden]

Can some tell me why am I getting this error

[sudden olive]

have u tried running it with the terminal the command is python snek.py

[frozen dawn]

You cant have an elif without an if statement before it:

if some_cond:
    ...
else if someother_cond:
    ...

[median linden]

Oh I see

Thank you

[limber veldt]

The issue is the indenting, not the statement

[median linden]

i see now i might try that out in future projects

[crystal kernel]

what this made with Python?

[marble jewel]

yes all in python using pygame-ce

[crystal kernel]

If what I suspect is right, I'll surely pursue the path of Python game development

[blissful venture]

oh rlly? I'll see to it

[distant hollow]

anyone know why when using pygame my code says game.all_sprites doesnt exist

[sterile nest]

whats the exact error?

and most likely it's a reference error, or it's not defined in game

[distant hollow]

wait lemme send a screenshot

self.groups = game.all_sprites
AttributeError: type object 'game' has no attribute 'all_sprites'

self.all_sprites = pygame.sprite.Group()

[sterile nest]

go to your game class where you defined it

[distant hollow]

self.all_sprites = pygame.sprite.Group()
self.player = player(self, 0, 0)

where its ddefined

andd its called in the player class here

self.groups = game.all_sprites

[sterile nest]

where are you using self. groups?

like where are you calling from

actually, let me see your class constructor

[distant hollow]

for the player or the game

class player(pygame.sprite.Sprite):
def init(self, game, x, y):
self.groups = game.all_sprites
pygame.sprite.Sprite.init(self, self.groups)
self.game = game
self.image = pygame.Surface((TILESIZE, TILESIZE))
self.image.fill(WHITE)
self.rect = self.image.get_rect()
self.x = x
self.y = y

class game:
def init(self):
self.screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("placeholder")
self.clock = pygame.time.Clock()
pygame.key.set_repeat(500, 100)
self.load_data()
self.running = True
#pygame.mouse.set_visible(False)

def load_data(self):
    pass

def new(self):
    self.all_sprites = pygame.sprite.Group()
    self.player = player(self, 0, 0)

[sterile nest]

just upload using a a link please

that way I can easily sift through full code

[distant hollow]

hold on a sec

wont let me

too long

https://paste.pythondiscord.com/4K3Q

[distant hollow]

@sterile nest

sorry for the ping

[limber veldt]

I suggest assigning the group in the init() method and just emptying it in the new() method

Or call new() from init()

I often do that with attributes that I want to reset, put them in a reset() method and call it from init()

Current state of my code redesign after changing to the arcade instead of NES layout, most of these attract mode objects have reset() methods and I still need to add more shooting to the later phases of the gameplay demo, almost ready for sounds

[sterile nest]

Sorry I was busy

[distant hollow]

its fine i got it

its because i put game inside the player function istead of self

as a parameter

[sterile nest]

ah yeah, refrence issue

[sterile nest]

looks really good

[round obsidian]

looks excellent!!

[sterile nest]

I finally got this working lol

[limber veldt]

Thanks, getting there

[round obsidian]

@limber veldt I'm going to be rebuilding my Robotron recreation in a while, possibly with new graphics and branding so it can actually be redistributed

[limber veldt]

Nice, make sure to share!

[round obsidian]

you bet!

[sterile nest]

How do you do the different game pages btw?
do you use a concept like layers?

[limber veldt]

Chasing waypoints

?

[sterile nest]

Its gonna be for a predator , prey sim. Those are just like,,food pellets

[limber veldt]

I use a state machine running different objects...usually

[sterile nest]

ah that makes sense

so a state for each page?

[limber veldt]

Yes

[sterile nest]

then you just use something like .render and yeah

makes sense

I've never used a state machine, but I know how they work lol. I prefer classes and override ( I suppose thats what a state machine mostly is...)

[limber veldt]

Like the Game() class here https://paste.pythondiscord.com/AFEA

It handles running a few objects

One at a time

And has a switcher sent to each of the objects so they can change state

My current version varies slightly from that one but pretty much the same thing

You can see some references to the already mentioned reset() methods

The code for demo gameplay was cluttering my Level() class so I put it in its own object with a few methods from Level() to make it stand alone, so current Game() class is like this https://paste.pythondiscord.com/R22Q

[sterile nest]

Gtg. But heres a better video of what its gonna be like

[limber veldt]

Interesting!

Looks good

[sterile nest]

yeah I gotta add a lot still. Evasive, mating etc

I plan on training an AI model with it

[limber veldt]

Be sure to keep sharing your progress

[sterile nest]

Red is wolf, the blue is the rabbit

Should I make the views do something?
At the moment I'm just using the full field-of-view angle for their vision, but im thinking of adding like a speed boost or something when they are in that binocular range. Or just so they can charge or chase or something

[main minnow]

Maybe you could assume that wolves have to move forward, but can't turn well?

[ocean temple]

Add chance to spot depending on speed of pray in uniocular, and in binocular just 100%

[sterile nest]

ooh, thats a good idea

I dont have anything like sound at the moment, so that works

sound would be very easy to add tho

[ocean temple]

And ig range at rabbits and wolves are same infinite, but idk. I could be wrong, also taking their size so grass and obstacles on way of vision

---

Also your rabbits ignore wolves why

[sterile nest]

havent added evasive yet

about to in a few hours

I need to fix the image rotation lol

I think once its done it will be pretty cool

Its gonna be like an automated mope.io

[dim dock]

👉 If you need development or modification of your website, please ping me.

[jovial laurel]

!rule 6

[frank field]

Rules

6. Do not post unapproved advertising.

[jovial laurel]

Please abide by the rules you agreed to when joining this server, @dim dock

[dim dock]

ok, sorry

[ocean temple]

Wolves hunter

[ocean temple]

Why fix rotation if you can just draw 45 degrees turned sprites?

[sterile nest]

That's true. probably better than transforming an image. That way I won't have to worry about scaling it and all of that

[ocean temple]

But that will make you worry about all those things at sprite design stage...

[sterile nest]

that's also true. This isn't really something I need to worry about

[ocean temple]

And as i see, not all squares are 45 rotated, so still need fix

[sterile nest]

yeah thats what I was talking about. It's just a visual bug

[ocean temple]

but making them circles

[sterile nest]

lol

easy fix

I might do that for now until I implement actual sprites

so I won't have to look at ugly rotated squares

[ocean temple]

There should be lib, or tons of docs on image transforming

[sterile nest]

yeah there is. More docs than the angle_to function. Took me forever to figure out why it wasn't working

[ocean temple]

I implement rectangle drawing once on js

But there are cleaner ways

[sterile nest]

Very bad atm, but the first stage of the evasion algo

[quartz fossil]

Next stage is "Run to another blue one and get behind it"?

[limber veldt]

I'm currently transforming images for the rotation, thinking about caching rotated images instead

The original Galaga (and just about every arcade game, I presume) doesn't transform images

My images are small though, like 45x48 or even smaller, so they aren't very heavy. Either way, I still need angle_to() to get an index into a list of images, for instance

[round obsidian]

@limber veldt another option is to pre-transform them, save the rotated sprites as a sheet, and just use that

[limber veldt]

I feel like 15-20 rotated images to make 360 degrees would be enough

Like every 15 degrees

I have the ripped sprite sheet from the original and it has a number of rotated images for each sprite but only for 90 degrees of rotation, I think it must have transformed those during its initialization

Just flipping though, not rotating

I put my frame limiter to 120fps, no noticeable slowdowns, so I have headroom

I'll have it set to only 60fps though the 120 was nice

[charred sigil]

how do i make my chess game multiplayer???

[sterile nest]

pretty much lol. Luckily I set this up so I can override behavior for each different animal. So the rabits might do this, while something more complex could do something else

I was going to use a state machine, but I decided not to since I had so many different behaviors. Was easier to just make it a class

[quartz fossil]

Are you doing this by writing logic ad-hoc until things work, or are you using some paradigm of structuring AI?

Ah, you answered just before I asked. 🙂

[sterile nest]

Ad hoc atm. No actual trained AI or anything like that yet

[quartz fossil]

May I recommend Behavior Trees?

[sterile nest]

I'll have to look into it. I'm not familiar with it

ah I see. That's pretty cool

I was planning on just letting them do whatever they want based on reward and penalty, but with this it I can train specific behaviors

I think..

[quartz fossil]

Okay, for learning, there are indeed better ways.

[vagrant saddle]

like that ? https://pmp-p.ddns.net/pygbag/pygame-pychess/build/web/

[sterile nest]

did you mean just using behavior trees in general?

I think im already doing that

[quartz fossil]

Yeah, I thought you'd be going for deterministic behavior design. BTs are just a paradigm to structure your AI so it stays maintainable for longer.

[limber veldt]

@vagrant saddle , I've been looking at your fsm implementation for breakout, I like it, will probably work some of that logic into mine

I need a new path follower behavior, one that rotates to the next waypoint before moving toward it

[sterile nest]

Well I think I have something like that. Atm I have a handle_behavour function.
At first I scan the visible area, check for prey or predators or other entities. Based on that I set flags.

Then I do if statement checks for things like if I have a visible prey and no predators around then pursue target , then in side that function I have other checks like can_attack. and so on

and I chose this because I have a class for each animal, and I can just override the behavior method and the ones it branches out and uses

[limber veldt]

That's how I did my enemies, all inherit from BaseEnemy which comes with base behaviors

So my fly_in() method just lives in one object

Among other methods, of course

[sterile nest]

yup. Same, it's super easy to just override the behaviors

[limber veldt]

One of the most powerful tools I've learned, just in the past little over a year, inheritance

[sterile nest]

except for when you have to super initialize a very long list of attributes...twice

[limber veldt]

Like this?

That's the entire enemy, all behaviors for him are in Enemy()

I love being able to do that, I'm still learning too

[sterile nest]

I'm at work rn so I don't have a picture, but I have like 30 attributes lol

it's annoying. They are mainly stat attributes. Speed, strength, toughness etc

gtg. We should talk more later

[limber veldt]

Your objects/behaviors are quite complex, fun project

[sterile nest]

yeah , instead of like an Enemy parent class, I have a very abstract "Entity" class that handles everything lol. Since the prey and predator have very similar movements.

Though I'm not sure of your Enemey class is also inherenting something, I would assume so

[limber veldt]

Yeah, Enemy() inherits pygame.sprite.Sprite

[sterile nest]

I think im gonna add mating next and fix the trait calculations. Because at the moment the stats are all very messed up lol

And then once I have everything added and fixed, I'll add like Breeding traits

and age and whatnot

[sterile nest]

that's the thing I love about simulations like this. you can literally infinitely add more complexity as you go

[limber veldt]

I was digging through pygame source, I wanted to see Vector2 methods but they're in C with just a .pyi file with stubs

[sterile nest]

some libs need to update thier stub files. Super annoying having no linter help you with something like PySide

[limber veldt]

I only need this on a couple of enemies and only during challenge stages, those enemies who have sharp turns in their path, I'ma just override the fly_in() method in those enemies with a couple of conditions to rotate them at certain points

[round obsidian]

@limber veldt Just made a public repo of the game I've been jamming for the past couple of days.
https://github.com/syegulalp/blobs

[limber veldt]

I was going to ask you how you did the controls for your Robotron?

WASD with mouse?

[round obsidian]

WASD/arrows

I added gamepad controls, too, and I'll likely do the same for this example

[limber veldt]

That's a good idea, dual sticks would be perfect

Those old arcade cabs had such robust controls, especially the sticks, they took a beating and held up so well

[round obsidian]

I will most likely use the code I just posted here as the basis for the Robotron rewrite

apparently one of the reasons the arcade sticks were so resilient was because many of them used optical switches and not mechanical ones

Berzerk's original run had a really flimsy mechanical joystick that broke a lot, so they replaced it with an optical one

[limber veldt]

Just looking through that code, looks good and I thought the same with mine but with enemies, reusing them instead of recreating. The die and get removed from all groups and left for gc but there's no reason I couldn't give them a reset() method and reuse them

[round obsidian]

yes, I did that with Robotron originally -- when sprites "die" they get put into a bin for reuse, but when I tried the same approach here it hardly mattered. I think it's because Pyglet has gotten much better since about managing vertex and texture memory

[limber veldt]

Robotron would make a nice addition to my retro collection. I've done Defender, Arkanoid, Galaga in the last couple of years

[round obsidian]

Berzerk is another one I enjoy from that period (obviously). Tempest would be harder to do but a fun challenge. Also, I don't know if you know the game Zookeeper, that one is pretty challenging

or Blaster, also from Williams

[sterile nest]

class Decision:
    def __init__(self, state, success_state_action, failure_state_action):
        self.state = state
        self.success_state_action = success_state_action
        self.failure_state_action = failure_state_action
    
    def evaluate(self):
        if self.state:
            return self.success_state_action.evaluate()
        else:
            return self.failure_state_action.evaluate()

class Action:
    def __init__(self, action_function):
        self.action_function = action_function

    def evaluate(self):
        return self.action_function()


class Entity:
    def __init__(self, x, y):
        self.x = x
        self.y = y
        self.predators = []

    def get_visible_predators(self):
        return []
    
    def evade(self):
        print('evading')
    def look_for_food(self):
        print('looking for food')

    @property
    def is_visible_predators(self):
        return len(self.get_visible_predators()) > 0

class Rabbit(Entity):
    def __init__(self, x, y):
        super().__init__(x, y)
        self.build_behavior_tree()
        
    def build_behavior_tree(self):
        self.behavior_tree = Decision(self.is_visible_predators, 
                                      Action(self.evade), 
                                      Action(self.look_for_food))
        
rabbit = Rabbit(10, 10)

#game loop etc
rabbit.behavior_tree.evaluate()

``` I have to now recode a lot. But I love this concept. Is this right for the most part?

So much easier to determine states rather than having to override a behavior function with tons of if statements multiple times for each animal

[quartz fossil]

Looks about right if I squint hard. MAy I also interest you in https://github.com/TheCheapestPixels/pychology#behavior-trees ?

[sterile nest]

dude this is amazing

[quartz fossil]

In particular https://github.com/TheCheapestPixels/pychology/blob/main/pychology/behavior_trees.py

Have fun. I need to sleep. If you have feedback on it, I'll be all ears, best in DMs though, I guess.

[sterile nest]

Will do! Also, where did you learn this algo from? I want to learn more like this but have no idea where to search

[quartz fossil]

Initially https://www.youtube.com/watch?v=6VBCXvfNlCM and then I began searching for further resources.

From further YouTube videos to the latest research papers.

[sterile nest]

dang thats awesome. This is super underrated lol

good work

[quartz fossil]

Thanks. It's just one part of a tall stack of libraries that I'm developing to finally get some big game together.

[sterile nest]

Dang, thats gonna be a big game. Makes me want to start turning a few of my projects into libs now. Everything is mostly in files lol

[quartz fossil]

What engine are you using for graphics, BTW?

[sterile nest]

just pygame for now

[quartz fossil]

Are you interested in 3D in principle?

[sterile nest]

I'm not sure. I don't have much game dev experience. I'm also looking for speed since I'm going to be doing very large simulations

in principle yes

[quartz fossil]

You might be very interested in Panda3D.

[sterile nest]

I'll defo check it out. if you dont mind me asking, how long have you been learning programming/ algos for?

[quartz fossil]

Oof... Since last century.

Only got good in the last ten or so years.

[sterile nest]

Ah okay. Makes me feel better lol. I just started college a few months ago for comp sci. Just trying to learn as much as I can

[quartz fossil]

Wanna see a simple hydrological simulation that uses compute shaders?

[sterile nest]

Sure!

[quartz fossil]

Install the Python packages panda3d and Jinja2, clone https://github.com/Schwarzbaer/panda3d-terrain and run python main.py -r 256; With space you can turn water influx on and off.

Note that I first learned about GLSL compute shaders two weeks ago, so it's not too advanced right now, and looks like crap to boot. I know what to do about it, but it will take time to implement.

But if you give higher -r values, you can see how far you can drive your GPU towards meltdown; That's the side length of the hydrology simulation.

If you want to do "very large simulation", compute shaders is the way to go. Especially since your creatures kind of remind me of boids.

Okay, now good night for real.

[sterile nest]

good night! Im checking it out rn

ah I see why you disabled the mouse lol. This is awesome

Dang, this makes me feel like all my simulations were for waste lol. The water is so smooth. Defo gonna have to research and dive into algos more

[quartz fossil]

They weren't wasted. You learned how to do them. Now you just need to learn how to do them again using Panda3D's toolset, and then to do things with the high-powered tools.

My first boids ran on the CPU, and after 50 or 100, I ran into the performance barrier. And now I'll have to do them again, but this time I can do them in the thousands to millions.

[sterile nest]

Dang, that's amazing. I wonder how the 2 libs will hold with what I plan on doing. Tens of animals and thousands of entities all with complex behaviors and systems. Breeding, foraging, raising offspring etc.

[quartz fossil]

Tens, no problem. When you need thousands, you'll have to move stuff to the GPU, and at that point, pychology won't help anymore.

[sterile nest]

ah, well its still awesome. Yeah once It hits the thousands I'll have to come up with something on my own

[quartz fossil]

Thousands you could also do in C. Hundreds of thousands, definitely compute shaders.

[sterile nest]

I'll definitely recode this in another language for speed one day, but unfortunately I only know python at the moment. I started to learn C++ recently

[quartz fossil]

GLSL.

No worries, it'S syntactically similar to C++.

[sterile nest]

Alright nice. I've also been trying to learn math recently to better understand algorithms. Makes me want to learn more to get to this point. Anyways, I got to go. I would love to talk more later. See ya

[quartz fossil]

Seeya.

[limber veldt]

My last sim game teaches basic digital logic, here's a run through one of the tutorial stages

The only thing keeping me from calling that game finished is the save and load game functionality

So many items, so many rooms, some rooms inside other rooms, saving position of all items, all wires, and the states of all of them...basically every object needs a read_ref() and write_ref() method

It's based on Robot Odyssey, a Learning Company game from the mid 80s, which was redone in Java in 1999 or so and called Droidquest

[limber veldt]

Chained OR gates (an early version)

There are seven levels with 400+ rooms and each one is an editor. The saves are level based, so one can save/load the entire current level, but building the dicts for json saves is so complicated for me

Then parsing that data back into instanced objects

With all the wires connected in the right places

My biggest project, over 20k lines and dozens of objects

[round obsidian]

wow, nice!

[sinful night]

looks really cool @limber veldt
you should check out pyweek: https://pyweek.org next one is around march next year iirc

[limber veldt]

The first level playthrough

[limber veldt]

And thanks, I will definitely check it out

[limber veldt]

When the game was made, there weren't really any standard control schemes, so the interface was a pain in the ass with arrow keys and aligning a solder pen object's tip to ports, just lame. My version fixes all that using mouse click and drags to design circuits

Testing gate logic with a 'hot' cursor

Magnetic storms drain robot batteries, the shield prevents it. There's a maze in that level with magnetic storms roaming about

And, of course, objects that only a robot can pick up in that maze

That sensor editor is part of that level's secret, passing a crystal over it will create a magnetic storm in that room that, if you have placed a certain object in that room and the storm wanders into it, opens a secret passage

And the certain object is only found in level 2's secret, along with a hint to level 3's secret

And when you reach the end of the game and have collected all the secret keys, opens an entire secret level with really hard puzzles

That robot with the blue 'chip' inside it, it's a wallhugger chip that I 'burned' from a prototype in the chip factory. It has like 12 nested and double nested chips inside it, all burned from prototypes too

So I actually created the chip in the editor, it has no logic besides that of the gates placed and wired inside

[pine plinth]

consider using pickle
it is not perfect, but is good for first rough implementation
after that you can make proper serializing/deserializing if you need to

[raven kernel]

What do you consider proper serialisation? I actually have a chunk system using pickle right now

[fierce turret]

Using custom tkinter building an deckbuilding game. (Cards = buttons).. Doing this paralell with CS50p course. probarly 20h in i find out tkinter doest suppoert image on image transparancy..

[brisk yew]

Canvas widget should support transparency to some extent

[limber veldt]

Not bad, I made an override method for this enemy and this path specifically

So they pause and rotate at the corners

[limber veldt]

So the method works, just gotta condition it into a few more paths

[lime stream]

---

🚀 Key's Portfolio - A programmer

About Me:
Hey there! 👋 I'm Key, a skilled programmer specializing in Lua, Python, and web development. With experience in both front-end and back-end, I've contributed to notable Roblox games like TTD2 and as the Owner/Developer of a game development team, where I've crafted immersive user experiences.

Projects:

1. Altron

• 🌟 Worked on backend gameplay to enhance datastores
• 💡 Utilized web development skills for the game's website before the game got archived.

2. Game Development Team

• 🔧 As the Owner/Developer, led the team in creating multiple anime games.
• 🚀 Leveraged Lua expertise to achieve 20k+ visits on my old game.

Roblox:

• Username: KeyWasFramed

Contact:

• 💬 Discord: keybrt

🌐 Excited about new opportunities and collaborations! Let's connect on Discord or in the Roblox universe. 🎮

---

[grim current]

!rules ad

[frank field]

Rules

6. Do not post unapproved advertising.

[daring terrace]

hi i believe this is where i am supposed to ask in here but i am having some problems with syntax errors in if statements could anyone possibly help me out with this?

[limber veldt]

Some condition must follow the elif statement, either add one or remove the elif

[daring terrace]

the error is the colon tho

[limber veldt]

Also, you need a closing parenthises in your option = assignment

[daring terrace]

ah

that fixed it

[limber veldt]

The colon is proper

[daring terrace]

oh

[limber veldt]

Suggest getting some sort of IDE too, like VSCode or PyCharm. maybe a little hassle to setup but worth it

[lime stream]

who is looking for a game dev partner

[limber veldt]

The issue I ran into with pickle was that it can't pickle sprite surfaces. I could probably workaround with a dictionary of the images

I think it'll just need 'proper' serialization, I'm doing some of that now for some objects by building dicts with all the relevant attributes (position, rotation, state)

So coming up with a data structure is the hard part for me

A format so to speak

Make a list of objects, make a list of wires that are connected to objects including the index into the list of objects for each end of the wire and which port of the object it's connected to...and so on

I just need to break it down and step through it

This is the saved wallhugger chip https://paste.pythondiscord.com/ESBA

Describes everything inside it

Considering changing it to xml, a little better structured

Machine readible only bytestream would be ideal

[pine plinth]

json is the easiest, but it is relatively slow and big
there is an awesome library called construct that allows you to specify binary format, and then build your dictionaries into binary file and then parse them from binary file into dictionary back (this approach still requires object<->dicts serialization)

!pypi construct

[frank field]

construct v2.10.70

A powerful declarative symmetric parser/builder for binary data

[limber veldt]

I think I can create a SavedLevel() object with methods to save and load all the relevant data into attributes then pickle that

[limber veldt]

My recording settings don't record overlay windows (tkinter Save as and Load dialogs) but I'm saving and loading here just a couple of objects so far, the current level, and the player position within it

And that's using pickle, which is nice in that it satisfies the machine readable only requirement

So that's kinda working, a lot more work to do with the parser though

Next up, saving and restoring wires

Hmm, my wire objects are probably pickle-able just the way they are

Cause they're not sprites

All conditionals and assignments except for the draw() method

They're just lines but have some logic too

[slim solstice]

idk if this is allowed but does anybody have experience working with pygame and pyinstaller xd

[oblique mica]

yes

[lapis trail]

@limber veldt you made this game

[limber veldt]

Not really, I mean I ported it to python/pygame from the original game

It's a great game, imo, worthy of my efforts. I played it 20-30 years ago so thought I'd try writing it

I have a playthrough of the 1999 remake (written in Java) on my youtube

[worn terrace]

HEY

https://imgur.com/a/B4gRIoL

anyone know how to do a title like this in python?

[round obsidian]

@limber veldt Recreation beginning. I have the shaders in place to do the color cycling

[limber veldt]

They used quite a few of them in those games

[round obsidian]

yeah, I love that effect!

[limber veldt]

Defender has a few in it, cycling various colors

[round obsidian]

The hardware could only display 16 colors at a time out of a possible 256 so they used 10 colors fixed and 6 colors reassignable (in Robotron, at least)

[limber veldt]

I should learn GL

Did the Robotron enemies have any more than seek behaviors?

[round obsidian]

the ROM dump described their behaviors in detail, they had various behaviors

some went exclusively after you, some did so but with different algos, some hunted humans, some had fairly fixed programmatic behavior

[real shadow]

Unsure if this is the best place for this question, but my goal is to eventually start using python for simulation/game development.

Can anyone recommend some good books to get started? I'm familiar with programming but not so much python. I am looking for the best possible resources for learning from the ground up. The more geared towards game development the better

[gritty gorge]

I am trying to get my image to stick to the side of the screen no matter what size the window is just like how i did with the rectangle on the far right side. The image is on the right side but it's not close enough like i need it to. Any ideas what's wrong?

New_Project_Button = pygame.image.load("Engine/Images/New_Project.png")
New_Project_Button_Scaled = pygame.transform.scale(New_Project_Button,(100,30))
New_Project_Button_Rect = New_Project_Button.get_rect()
New_Project_Button_Rect.right = screen.get_rect().right

[marsh moon]

Hey, can anyone help me by my Phyton Snake game

The Game is done but i want to add Difficulty levels, like easy and hard

[limber veldt]

Do you mean to assign the scaled button to New_Project_Button_Rect instead of the unscaled one?

[gritty gorge]

Wdym

[limber veldt]

That code puts the New_Project_Button_Rect.right at screen.get_rect().right, correct?

You scale the button image but are not using it for anything there

My question is simple, did you mean to do this instead?

[gritty gorge]

i am using it

i'm am blitting the image to the screen using it's scaled surface

[limber veldt]

But you're assigning the rect from the unscaled surface

If that's what you mean to do, fine, but perhaps that's why your image isn't being placed where you expect

[gritty gorge]

please explain

[limber veldt]

You're using the scaled image but getting the rect (used for placing the image) from the unscaled image

Please explain what?

[gritty gorge]

this part

[limber veldt]

You said the image isn't where you want it, not close enough, perhaps using the rect from the unscaled image is the reason. I even showed you a screenshot of what I meant and you still haven't answered the question I posted with it

You are getting the rect from the unscaled image then placing its .right at screen right. Maybe, just maybe, you should be getting the rect from the scaled image instead, did you even try?

[gritty gorge]

well that fixed the weird click box on the image

now i need to put it on the right side of the screen

i had it right the first time lol

[limber veldt]

I find it helps to draw the rect too. Like pygame.draw.rect(screen, 'red', New_Project_Button_Rect, 1) somewhere in your drawing section, so you can actually see where it is

[gritty gorge]

dunno why i changed it

[gritty gorge]

nah i test by clicking around the image to see if the rect is too big or off

[limber veldt]

Sounds reasonable

When you can just draw it

[gritty gorge]

is it possible to blit an image as a child of another image?

[limber veldt]

What do you mean as a child?

[gritty gorge]

like blit 2 images together

or well like blit an image onto another image

[limber veldt]

Sure, specify the destination surface when blitting the other surface

[gritty gorge]

how?

i found this but i'm not sure if it's what i need

pygame.Surface.blit()

[gritty gorge]

is this what i need?

[ebon marsh]

i need help guys

i am doing soem code for my com sci assignment

and my car is moving behing my image instead of on my road

i dont know where to paste my code

[limber veldt]

Try moving your drawCar() at line 64 down to line 172 or so, so it draws last, on top of everything else

[limber veldt]

You need the name of the first image as the destination, like destination.blit(other_image, (x, y))

[ebon marsh]

could u resend me my code with the changes?

[limber veldt]

No

Your code is a nightmare

Things are drawn to the screen in the order you write them, the last thing drawn will be on top of everything. You have a lot of drawing happening there and you'll have to work out in what order you want to draw things

[ebon marsh]

am an amateur

[ebon marsh]

its my first time using pygame so makes sense lool

[limber veldt]

I'm not sure what your screen looks like, can you share a screenshot of it?

[ebon marsh]

sure

this what i got so far btw

[gritty gorge]

how do i do this with a rectangle

[limber veldt]

You want to draw a rectangle on a surface?

[gritty gorge]

image onto a rectangle

[ebon marsh]

i want the car, to be on the white in the road

and stop when the road ends

and reset

this is where i am so far

[limber veldt]

Totally not understanding this, what do you mean draw an image on a rectangle?

An image is a rectangle

You want to draw a rectangle around the image?

[ebon marsh]

if car_x > size[0] - 300:

so i did thois to make the car stop at the end of the road

i now need the car to be on the road

[limber veldt]

So draw it further down the screen maybe?

[ebon marsh]

what should i do?

[gritty gorge]

ain't an image a surface?

[ebon marsh]

also do you think i should makie the car move from the start of the screen or road

[limber veldt]

So wait a minute, you have 40 lines of drawing there with coordinates in the lines and you don't know how to move the car down the screen?

[gritty gorge]

idk how to explain it but i need to draw a image with the rectangle

[ebon marsh]

my brain is fried

lmao ;-;

[limber veldt]

The car is being drawn at (car_x, 400) right?

[ebon marsh]

yes

[limber veldt]

Maybe you increase that 400 to say...something like 450...it moves it down

[ebon marsh]

thanks bro

appreciate it

you woke me up and actually helped

its working all good now

[limber veldt]

All those coordinates you have specified, they mean something, the first is x position, the second is y position, as in how far down the screen

[gritty gorge]

i'm so confused

[limber veldt]

Try explaining the question again

You want to draw something on something, this much I know

[gritty gorge]

I need to draw an image with the rectangle.

[limber veldt]

With what rectangle?

[gritty gorge]

Like you can with 2 images

[limber veldt]

Draw a rectangle on an image?

[gritty gorge]

other way around

[limber veldt]

You cannot draw something on something else and still see the something else...unless you use transparency

[gritty gorge]

huh?

https://paste.pythondiscord.com/CZPA

[gritty gorge]

idk what that mean all i know is my idea for calculating the position isn't working at all

[limber veldt]

Any drawing that you are doing to the screen before starting your while loop is not working because your while loop just fills the screen every frame

[gritty gorge]

not what i mean

let me clarify

[limber veldt]

What you mean doesn't matter, what you are drawing to the screen outside of your loop is pointless

[gritty gorge]

everything draws fine it's just when i try to calculate the image position(New_Project_Button) is off

and this is because when the screen is minimized when it's maximized it's fine so that's not gonna work also because people have different screen sizes so i need to be as accurate as possible

[gritty gorge]

wdym outside my loop?

everything is being drawn on the inside

it's just being loaded and positions are calculated outside the loop

[gritty gorge]

is this even possible to achieve?

[limber veldt]

Everything is possible

[gritty gorge]

except world peace*

[limber veldt]

This line ProjListRect = pygame.draw.rect(screen,(0,0,0),(0,0,screen.get_width(),screen.get_height()/1.06)) why are you assigning a draw call to a variable? Why not just say ProjListRect = pygame.Rect(0, 0, screen.get_width(),screen.get_height()/1.06)

This is drawing to the screen outside your loop, as I said

You can just define the rectangle

[gritty gorge]

how does this relate to my problem with positioning an image?

[limber veldt]

It doesn't, but it relates to me trying to figure out what in the heck you're trying to do

[gritty gorge]

I will fix it in the morning

For now I will just collect information

So uhm is it possible to draw a image onto a rectangle is what I wanna know

[limber veldt]

Yes is is possible, but I still don't know what you mean

https://paste.pythondiscord.com/DY4Q Note the changes in the rect assignments and drawing them

I don't have the images that you are using so I can't use them, but you can assign rects and draw them yourself and maybe that will help you visualize what you need

As for drawing something on a rectangle, I have no idea what you mean. Drawing something on another surface maybe?

Which I already answered

You can see how I assigned a couple of Surface() objects instead of using images. This is how you create a surface, that surface will be a rectangle of the size specified, you can draw on it

Just like you draw on the screen, but instead, draw on it

[gritty gorge]

Gotcha

[gritty gorge]

So I need to turn my rectangle into a surface?

[limber veldt]

No, just make a surface

[gritty gorge]

And then what?

[limber veldt]

Draw on it

[gritty gorge]

So I draw the rectangle and the image on the new surface?

[limber veldt]

What rectangle?

What do you mean?

[gritty gorge]

From earlier

[limber veldt]

You are not articulating

[gritty gorge]

the one defined in the script New_Project_Button

[limber veldt]

That rectangle defines where the button is going to be placed, it's not for drawing on, place the button at that rectangle and draw on the button == drawing on the rectangle

We make surfaces, either by defining pygame.Surface() objects or by loading images, either way, they are both Surface() objects. We get a rectangle of a surface and place it on the screen to define where the surface will appear

Just like you're using rect.right to place your button's right side at the screen's right side, this has nothing to do with the image other than placing it, not drawing on it

[silver wren]

...

[gritty gorge]

Ok that was way too much information also I need the image to scale with the rectangle while also sticking to the right side

We gonna need to tale this one step at a time and for you to explain it bit by bit because I still don't understand

[limber veldt]

ClearCode, among others, explains these things in video better than I can in text https://www.youtube.com/watch?v=AY9MnQ4x3zk

[cyan glade]

!paste

[frank field]

Pasting large amounts of code

If your code is too long to fit in a codeblock in Discord, you can paste your code here:
https://paste.pythondiscord.com/

After pasting your code, save it by clicking the Paste! button in the bottom left, or by pressing CTRL + S. After doing that, you will be navigated to the new paste's page. Copy the URL and post it here so others can see it.

[cyan glade]

https://paste.pythondiscord.com/AIIQ Unsure about how to crossreference the other players health / basically struggling to set up shield mechanics
(FYI: Player 2 is on the left and Player 1 is on the right will fix later)

@robust egret

[robust egret]

you want to create a armor mechanics?

@cyan glade

[cyan glade]

yes in a way if u think about it like that

i am so astronomically lost rn tho

[robust egret]

sound very basic but I have few question for improves

[cyan glade]

great hit me

[robust egret]

are player1 and player2 classes are the same or have differences other then the name?

[cyan glade]

basically this

[robust egret]

I meant the classes those (in the code itself)

class Player1:
  ...
class Player2:
  ...

but what I see is they're the same. is there another purpose other than being on the other side?

[cyan glade]

Yes for keybind inputs and for boundary checks, I know I can condense into a single class however I was unsure how to implement this in an effective (fast) way

[robust egret]

is this the reason?

    def detection(self):
      #  print("Detection function was called")
        if self.attacking and player2.rect.colliderect(player1.rect):
            distance = player1.rect.x - player2.rect.x
            if distance < 115:
                self.player_hurt()

[cyan glade]

This is one of the reasons yes.

[robust egret]

alright seems like there is alot to improve than. I teach you how to implement the armor

[cyan glade]

That would be fantastic, much appreciated

lmk when u respond pls ill be back soon!

[robust egret]

in the Player class. you can add an armour variable. check if the player has any armour than decrease it with the mutiplier

def player_hurt(self):
    self.shield()
  #  print("Detection function succeeded")
    if self.invulnerable:
        return
    multiplier = 1
    damage = 10
    if self.blocking and self.invulnerability_duration == 0:
        multiplier = 0.66
    if armour>0: # check if any armour is left
        self.armour-= (damage*multiplier) # decrease armour
    else:
        armour = 0 # reset armour when we don't have armour(so when it goes negtive)
        self.health -= (damage*multiplier)
    self.invulnerable = True
    self.invulnerability_duration = 50
    print(f'RHS HP: {self.health}, Armour: {self.armour}')

1. instead of making a whole class for GameOver make a method or make the gameOverChecker function checks directly for the hps
   gameOverChecker(player1.hp, player2.hp)

2. the HealthBar class just make it an instace of the player class or put the functionality of the HealthBar class into the player class

[cyan glade]

tysm Im just looking into it rn

[robust egret]

3. the methods in classes are basically functions so they take arguments as any regular function

    def detection(self):
      #  print("Detection function was called")
        if self.attacking and player2.rect.colliderect(player1.rect):
            distance = player1.rect.x - player2.rect.x
            if distance < 115:
                self.player_hurt()

to:

    def detection(self, player):
      #  print("Detection function was called")
        if self.attacking and player2.rect.colliderect(self.rect):
            distance = self.rect.x - player.rect.x
            if distance < 115:
                self.player_hurt()

player is the other player (player2)

[gritty gorge]

he does not

[cyan glade]

Is there redundancy though now in terms of shield variables:

• self.blocking
• self.invulnerable
• self.invulnerability_duration
• self.armor

[brisk yew]

invulnerable twice?

[cyan glade]

accidently wrote it twice

[robust egret]

I don't think so

[limber veldt]

Don't ping me with nonsense, ClearCode is an excellent tutor, even if you disagree

Seems one would be thankful that I offered the help instead of arguing with me

[robust egret]

seems like you're heating up, no need to be aggressive. you can agree to disagree

[gritty gorge]

No really bro code is

[robust egret]

yeah I agree with this part

[gritty gorge]

Bruh I was just sayin

[cyan glade]

To be honest at the moment I am just trying to process how it logically works again since I've kinda forgotten. There is also problems in the shield mechanics as in when I press shield it reduces the damage inflicted to the other player instead of damage inflicted to the player holding the key @robust egret

[limber veldt]

Me too, we just need to be willing to put in the time to learn these things, it's not that difficult. If one tutorial isn't right for you, there are countless others

[cyan glade]

If you can kinda run the pygame window u will be able to see the issue

[limber veldt]

I've been seeing a few tutorials lately from Programming With Nick, he's also pretty good

[robust egret]

I can not run it as I do not have any pygame env setup. I would use the code logic instead

[robust egret]

but what I understood, that you have a player which can hold a key to get a shield to reduce damage, I am right?

[cyan glade]

reduce damage it receives

[gritty gorge]

Only on so far I seen was good was bro code

[cyan glade]

currently what it does is once you press the shield you give less damage (infinitely)

[robust egret]

oh you want to make a timer? so they don't camp?

[cyan glade]

so the logic is as such:

take player 1 and player 2.
If player 1 presses shield for lets say 5 seconds they take less damage as long as they are pressing Q( example shield button), after 5 seconds there is a cooldown timer which disables the shield mechanic to prevent holding the key down. I want this to be implemented for both players

[dawn quiver]

Hey guyz how can I learn game development.currently I am pursuing bca , first semester .i know basic c,python,html,css and JavaScript.tell me where to start and resources .

[robust egret]

!d pygame.time.set_timer
I found a solution

pygame.time.set_timer(EVENT_ID, 5000) # fire an event after 5 seconds = 5000 milliseconds

so you can use this for both the cooldown and the shield timer

[frank field]

pygame.time.set\_timer

pygame.time.set_timer()```
 repeatedly create an event on the event queue set\_timer(event, millis) -> None set\_timer(event, millis, loops=0) -> None  Set an event to appear on the event queue every given number of milliseconds. The first event will not appear until the amount of time has passed.

The `event` attribute can be a `pygame.event.Event` object or an integer type that denotes an event.

`loops` is an integer that denotes the number of events posted. If 0 (default) then the events will keep getting posted, unless explicitly stopped.

To disable the timer for such an event, call the function again with the same event argument with `millis` argument set to 0.

[solemn trellis]

couldn't i just hold for 3 seconds and release mouse for a single frame in order to bypass the cooldown?

release key* whatever

[robust egret]

yeah, this should be a simple fix tho

[solemn trellis]

nooo don't fix it let me break the game :(

[robust egret]

lol

[cyan glade]

wow thats great thanks! ill see how it works

[gritty gorge]

So uhh how will I draw a rectangle with an image??

I'm still confused on that

[robust egret]

I didn't get it, is rectangle an image or putting an image inside a rectangle?

[limber veldt]

Draw a rectangle around an image?

[gritty gorge]

No

[solemn trellis]

what engine

[robust egret]

be specific

[gritty gorge]

Pygame

[gritty gorge]

I did

[limber veldt]

Images are rectangles, so is the question how to draw an image?

[gritty gorge]

No

[robust egret]

not specific enough, understanding the problem is half the solution

[gritty gorge]

I don't know how to explain what I'm thinking because apparently y'all not getting it

[robust egret]

Please take your time, we will be here to help

[gritty gorge]

Ok so like I am creating a rectangle and storing it in a variable

I am loading an image and store that in a variable but I need a way to draw the two together

Like you can with two images

[robust egret]

oh I see. you can create a sprite group

hold on

I will see an example

!d pygame.sprite.Group

sprite_group = pygame.sprite.Group(sprite1, sprite2, ...)
while ...:
   sprite_group.draw(screen)

[frank field]

pygame.sprite.Group

pygame.sprite.Group```
 A container class to hold and manage multiple Sprite objects. Group(\*sprites) -> Group  

| [pygame.sprite.Group.sprites](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.sprites) | — | list of the Sprites this Group contains |
| [pygame.sprite.Group.copy](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.copy) | — | duplicate the Group |
| [pygame.sprite.Group.add](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.add) | — | add Sprites to this Group |
| [pygame.sprite.Group.remove](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.remove) | — | remove Sprites from the Group |
| [pygame.sprite.Group.has](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.has) | — | test if a Group contains Sprites |
| [pygame.sprite.Group.update](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.update) | — | call the update method on contained Sprites |
| [pygame.sprite.Group.draw](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.draw) | — | blit the Sprite images |
| [pygame.sprite.Group.clear](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.clear) | — | draw a background over the Sprites |
| [pygame.sprite.Group.empty](https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.Group.empty) | — | remove all Sprites |

[gritty gorge]

With sprite groups it doesn't matter if it's a surface or a rect?

[limber veldt]

A pygame.Rect is not an image, you cannot draw on it

But you can draw the rect and something within it

[robust egret]

oh my bad. so this won't work?

[gritty gorge]

I'm confused now

[limber veldt]

A quick demo of Sprite() and Group() https://paste.pythondiscord.com/TMMQ

With a couple more lines, we can draw the image of the sprite and the rect https://paste.pythondiscord.com/Z6SQ

[limber veldt]

I love Groups and Sprites, they make things so much cleaner

And Vector2s, but that's another story

https://paste.pythondiscord.com/7NEA Here, I've drawn a circle on a rectangle (not really on a rectangle though, on the image of one of the sprites whose image is shaped like a rectangle)

I'm working on redesigning my sprites for this game. I'm currently adding the stems and ports of the gates to their own group and drawing them separately with offsets but I want to draw them on the sprite image itself and draw that instead of another group

Made more complicated by them changing color as the sim runs

And they are rotatable in 90 degree steps so those offsets have to rotate with it

And I was loading images for them but changed to pygame primitives drawn on their surfaces

[limber veldt]

They're looking good

Part of an overall refactor with being able to save/load game as the goal

[cyan glade]

@robust egret hey bro im still very very stuck pls help put me out of my misery 😢

[robust egret]

I'm sorry, I must go study for an important exam

[round obsidian]

@limber veldt Next stage of Robotron rebuild is up

[limber veldt]

Sweet, looking great

[round obsidian]

Next up is the first enemies (Grunts) and the collision detection

[vital saddle]

Looking nice!

[gritty gorge]

So does sprite groups take in rects?

[limber veldt]

Groups take in sprites and sprites must have a rect

The position of a sprite's rect defines where the sprite will be drawn when being drawn by a group, as in the example I shared above

This is a sprite. It takes two parameters: pos and image, next I assign an instance of that sprite to a variable. Notice the two arguments being passed to MySprite. First is the pos and then the image. In the sprite, I assign the image to self.image attribute and define and place the topleft of a rect the same size as the image at pos, thus placing the sprite's top left corner at (150, 100)

With those things defined, self.image and self.rect, the sprite is added to a group that takes care of the drawing

So using sprites takes a little practice but it's so worth it for the ability to use sprite groups, which can be used to draw, used for collisions, all kinds of things, sprite groups rock

In that example, I made two sprites, added them to the group and draw that group. It could have dozens of sprites in it, but still just one draw call for the group

[dawn quiver]

Advice appreciated!

I am currently trying to make an application on pc that will let me make run the face and expressions of a kerfus robot (reference image below) so that I can build my own robot and use this application as its face. It has to be able to make different facial expressions when I click certain keyboard keys.

Does anyone have any suggestions on how I may approach doing this? (Developing the face, not the robot building) I don't know what programming language or what development application would be best suited for completing this project. Any advice would help!

[limber veldt]

How would you connect to the robot? Cool project!

Wifi?

[dawn quiver]

I was thinking of converting a chrome book and using it as a screen and just running the application on that. I was also considering using an arduino to run gifs on a small monitor I would buy.

Honestly, if there is another method you would suggest I am all for hearing it!

Id end up 3d printing the actual casings and stuff

[limber veldt]

Unfortunately, I'm not a hardware person so know very little there

[dawn quiver]

Alright, thanks a ton though!

[limber veldt]

Good luck, sounds fun

[dawn quiver]

^

[gritty gorge]

So the answer is yes?

[limber veldt]

The answer is no

Sprites have rects, groups just read the sprite's rect to see where to place the sprite image

I feel like you get the impression that rects are more than they are. They are literally just a topleft corner and a width and a height. They have a bunch of virtual attributes like .right .midtop .bottomright making them easy to move around and position exactly where we want them

[gritty gorge]

uhm that's false

[limber veldt]

That's why every pygame.sprite.Sprite object must have an attribute specifically named image and another specifically named rect, because the group (responsible for drawing the sprite) needs to know what to draw and where

Ok

[gritty gorge]

i just looked it up and edge said yes

[limber veldt]

I don't care what you looked up

As someone who's been writing pygame for years, I know better than edge or chatgpt

[gritty gorge]

i didnt use chatgpt stupid

i actually looked it up

[limber veldt]

Ok, have a good night

[gritty gorge]

?

[limber veldt]

I'm done trying to explain anything to you, like I said, good night

[gritty gorge]

whatever

i'll just go somewhere else

[brisk yew]

you'll run out of places eventually

[gritty gorge]

not you again

[gritty gorge]

lemme guess you bout to tell me i was rude

[robust egret]

taking off a chromebook screen doesn't sound efficient it could not be compatible with your pc and the purpose of the chromebook screen is made only for the chromebook. I do not know any other methods to make it compatible other than emulating the software

in short: The hardware of a chromebook(any device) is specifically designed to work with its own system

[vagrant saddle]

can a chromebook run that ? https://pygame-web.github.io/showroom/pygame-scripts/org.pygame.touchpong.html If yes and wifi cpython can drive the whole robot 😄

[limber veldt]

Testing circuits, a 4-bit counter

[wicked sail]

looks great ^

reminds me so much of c64 and plug & play games

[limber veldt]

It was originally on Apple IIe and a few other small machines back in the day

A few sensors there. A touch sensor, in-room sensor and directional sensor, all to be used inside robots to solve various puzzles

Every thing wires connect to, called ports, was using the strings 'input', 'output' or None as a port_type attribute, I just changed them all to ints, breaking everything in in the process

But I can import those as variables from a settings file and use them everywhere so now it's more a global setting

I found this paper about the original 'wallhugger chip' http://www.formauri.es/personal/pgimeno/temp/RO/wallhugger.php

My circuit is entirely based on that page

And it's not bad, I setup an obstacle course. A little struggle in the upper left corner, it's a tight squeeze, but he makes it

[limber veldt]

One of my gates, it has a rather long mro, Device, Item, Sprite, getting behaviors from all of them https://paste.pythondiscord.com/JFAA but makes creating all kinds of gates easy

[round obsidian]

@limber veldt Making progress

[limber veldt]

Yeah man, looking good, sounding great too

The sounds in those games were epic

[round obsidian]

I was reading about how they made the sounds and it was incredibly primitive but effective

http://zapspace.net/defender_sound/

[limber veldt]

Wow, that's badass

Testing a few swarmers, I should re-record with sounds

Oh wait, it does have em

[limber veldt]

Most of my games are remakes of classics

[round obsidian]

Yowza

@limber veldt

[obsidian wasp]

Okay so I got a really basic question, I'm working through Sean Mcmanus' "Mission Python Code a Space Adventure Game!" I'm in chapther 3 pg71 and it's recalling the code " if current_room % MAP_WIDTH ! = 1: room_to_left = GAME_MAP[current_room - 1] There is more to the code but according to pg71 the % operator gives the remainder when dividing two numbers. And if the current room number is divided by the map width of 5 using the % operator it'll produce a one. But the room numbers are: 1, 6, 11, 16, 21, 31, ,36, 41, and 46. How the heck is 1%5 = 1, and 6%5 = 1and so forth the math isn't making sense to me?

[sterile nest]

Added a feature to stalk prey

[proper peak]

Your message is very hard to read, but

How the heck is 1%5 = 1, and 6%5 = 1and so forth the math isn't making sense to me?
Well, that's just how the remainder of division works? 1//5 is 0, so what's leftover is 1 - (1//5)*5 = 1-0*5 = 1. whereas 6%5 = 6 - (6//5)*5 = 6 - 1*5 = 1. and so on. All of these numbers are one higher than a multiple of 5, so they are all 1 when taken mod 5.

[sterile nest]

Is there a way to check if a rect collides witha group of sprites?

[obsidian wasp]

Thank you for explaining that I was able to walkthrough a couple more and now that % operator makes a lot more sense.

[pine plinth]

a % b == a - (a // b) * b by definition

[limber veldt]

I iterate the sprite group and use sprite.rect.colliderect(other_rect) on each one

[sterile nest]

so I need to create a sprite?
Because I want like a debug tool for my mouse. When I click on something it would popup etc.

Im just using a rect atm

[limber veldt]

You can get the sprites of a group with group.sprites() if not a GroupSingle, for that, it's just .sprite

You said group of sprites, did I misunderstand?

[sterile nest]

Yes group of sprites. But I have just a rect, trying to collide with them

like, its just self.mouse_rect = pygame.Rect(0, 0, 20, 20)

and then I update pos etc

[limber veldt]

That would be other_rect in my post

[sterile nest]

ah ok

Do you think its better to just create a sprite overlay, or iterate?

ah iterate probably.

[limber veldt]

I'm not sure what you mean by sprite overlay

[sterile nest]

sorry, I mean just creating a sprite as the mouse

[limber veldt]

Sprites to sprite collision or sprites to rect, I'm not sure which is faster

Both come down to rect collisions which should be fairly fast anyway

[sterile nest]

def mouse_click(self):
        collisions = pygame.sprite.spritecollide(self.mouse_sprite, all_sprites, do_kill=False)
        if collisions:
            print(collisions)
            
    def mouse_update(self):
        self.mouse_rect.center = pygame.mouse.get_pos()
        pygame.draw.rect(screen, (255,255,255), self.mouse_rect, 2)

    def run(self):
        clock = pygame.time.Clock()
        self.generate_game()
        while self.running:
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    self.running = False
                if event.type == pygame.MOUSEBUTTONDOWN:
                    self.mouse_click()
``` I just did this

[limber veldt]

Good enough, my project has a lot of those

[sterile nest]

a lot of what?

[limber veldt]

spritecollide()

[sterile nest]

Thanks!

[limber veldt]

Beautiful

[limber veldt]

I suppose you could make it a sprite if the image is to be anything other than a rectangle, then you could use the sprite rect for the collision and any image

Maybe even animate it when hovered over certain objects, just thinking aloud

[sterile nest]

that's a good idea

I plan on adding like a pane window for the entities.
This is heavily inspired by a game called World Box btw

[round obsidian]

@limber veldt

[limber veldt]

Mechanics working fine, ready for level progression?

[round obsidian]

Yes, that's the likely next step. And scorekeeping

[limber veldt]

The wave end and especially the enemy spawn effects will be fun

That game had a lot of enemies, the later stages spawned dozens

[sterile nest]

are the enemies being like torn apart on death?

very cool tho

also, how would I go about adding a delay to attacks, while also having delta time?

What I was thinking, was to create a max amount of tome.for thr delay, 1000ms, then have a time accumulator function that adds 1*deltatime to the value. And if it's over 1 second/ 1000 ms, then attack?

[limber veldt]

I do that sometimes, sometimes I use a Timer() object like this https://paste.pythondiscord.com/TKLA

It takes a func argument so it can run a function when it's done

If the function reactivates the timer, then it can repeat

I've also used custom USEREVENTs

Assign the Timer() to a variable or attribute and update() it, sometimes using an if self.active: condition

[round obsidian]

Yeah, it's a replica of the exact death sequence in the original Robotron: 2084

I did that by just taking their basic sprites and converting them to new texture sheets where they're sliced horizontally and vertically into image grids

[limber veldt]

I noticed they have a few spawn sequences

[round obsidian]

Yep, I have all of those written down

my old version of this game has code to replicate them, but I'm going to rewrite most of that stuff

it was ... spaghetti

[limber veldt]

Some just materialize in place, others shrnking grid-like things

[round obsidian]

and every five waves the Brains "beam down"

[limber veldt]

The snake enemies are cool

[round obsidian]

cruise missiles!

and insanely hard to hit

I'm also re-using the space partitioning collision detection I wrote for a previous throwaway game

[limber veldt]

Defender has some similar effects

Grids with subsurfaces at the intersections

[round obsidian]

another thing I'm considering working on is a Wizardry/Roguelike adventure game, but with an open source core

it's the actual adventure content that would be closed

[sterile nest]

are you using boids for this?

also, I plan on making like a climb the tower type of game, does anyone have any examples on how to design and store levels?

I have a general idea. but if there's a common way I'd like to.use that

[fierce turret]

Building an deckbuilder for my finals in CS50P in tkinter.. yes, I hate my life

[limber veldt]

Boids are too heavy, or at least my version of them are, for a game, but those have similar behaviors

[limber veldt]

Grid based world with 2d list defining object/wall placements?

[sterile nest]

ah okay. But what about like a door or something.
Would it also just be like a map file with a unique id?

[limber veldt]

There's a few kinds of doors/teleporters, not sure how I'd do for that kind of game

[round obsidian]

@limber veldt Latest

[sterile nest]

I have added hunger and thirst now.
They lose 1 thirst, and hunger every second now. Each entity has a food calculation based on size. As well as digestion rate
They have a hunger and thirst threshold set at 70, so after a little bit they will start a behavior tree process to search for food. If they get down to 10, they start starving

[sterile nest]

oh god..too many babies

[dusky laurel]

Guys how do I actually make my code run ?

[limber veldt]

Time to add viruses

[valid bobcat]

Not bad in actually your code is simpely in multarry is very good

[limber veldt]

Got my chip burner working again, testing a simple circuit burn into a small chip

[limber veldt]

My chip saver is still saving the old port types ('input', 'output' and None), I need to change that to the new global defs (0, 1, and 2)

[limber veldt]

I think I'll make a 16-pin chip

Ports all around, in a square package

[sinful elm]

Hey guys I'm new and want to learn python could you guys help

[limber veldt]

Objects made, gotta make some adjustments on the chip compiler though

And the chip tester to accommodate more pins

I'm unsure if I like the small pins on the prototypes or the larger ones

I have no idea why one would ever need a 16 pin chip in this game but it's there now

My compiler, a work in progress of course, as is all my projects https://paste.pythondiscord.com/5O4A

[sterile nest]

agh...
making this pred prey sim is really fun, but balancing the stats is super annoying lol

I made 1 year = 1 min real time now. There's a time scale.slider etc

I'm trying to decide how many pixels they should should move every update now

[wicked sail]

@sinful elm Is there something specific you need help with? Or do you need some general resources to learn from?

[limber veldt]

Compiler fixed, tester still only supports 8 pins

[sterile nest]

Thats really cool

[limber veldt]

Thanks, really fun

It's a pretty complicated thing, converting everything in a prototype into signals and gates that cannot be seen 'inside' another object

I could have never done it without the Droidquest source, although not in python, the logic is easy to follow in Java

I learned so much with this project, too

It's relatively easy to just logic a chip together with conditions on all the pins but that's not the same as building and compiling them yourself

[sterile nest]

Yeah making a project like this is a great learning opportunity.

for my next game I plan on making like a 100 floor rpg type of game. Think of like SAO in a way, just not as big and ambitous.
there would just be like a floor shop, market etc. Then some portals to all the other floors

[limber veldt]

I've been wanting to do a Metroid kind of game

Or even R-Type, another 80s classic

[sterile nest]

Yeah, I have little to no game experience, so it will be a huge learning experience

Makng sprites, animating etc

[limber veldt]

All the mechanics are fun for me, making sprites behave

The last couple of years, I've really crunched vectors using them to move everything

[limber veldt]

Yeah, I just keep learning new things and never seem to run out. Your sim is looking great so far

Do you plan to be an actual coder? I've just been a hobbyist coder for decades

Took a python course over at Coursera about 13 years ago, love python ever since

[sterile nest]

Yeah thanks! I added a behavioral tree recently, and the logic has just doubled lol. A lot of confusing code I need to go back and fix.
I do yes. I started college last semester for comp sci. I'm self taught atm

[limber veldt]

Good for you, best of luck in that

[sterile nest]

Yeah, though I like doing game design for a hobby. I plan on going for Sims and Computations for comp sci

[limber veldt]

So tell me about this behavioral tree, is there an article or video for reference?

[sterile nest]

https://robohub.org/introduction-to-behavior-trees/

This ones pretty good

[limber veldt]

Thank you

[sterile nest]

its sort of like object-oriented if-statements

[limber veldt]

Interesting, I'll have to do more reading and looking for implementation examples

Something I always deal with, controlling NPCs, using a state machine

[quartz fossil]

Just like any other Python program?

@limber veldt @sterile nest https://github.com/TheCheapestPixels/pychology#behavior-trees

[bold radish]

Where can i find the best pygame tutorial

[limber veldt]

"Best" is subjective, but ClearCode has good tutorials

[limber veldt]

I made a chip factory room, just in case we need more chips

Eventually, I'll be taking away the mouse grab in most places

So only player can pick things up

Or robot

The speed button sets the speed of the burned chip, which increases the number of internal gates and wires processed in one evaluation of the chip

Nesting chips is working to one level at least

And the wallhugger uses a couple nested-nested chips

And it's really sensitive to the speed setting, too slow and it moves too far past corners before trying to regain it

[sinful elm]

@wicked sail I need help with a general sence of how to do stuff

[limber veldt]

Choose an editor, VSCode, PYCharm, Sublime, whatever, install it, install python, run editor, write code, save code, run file

And if anything like me, refactor and debug for weeks

[sterile nest]

Ok, so the mating is working. But there is a large gap between males and females

This is the 4th gen

[sterile nest]

ok so I got it working, but now when I try and increase the time scale verything breaks

[jade geyser]

just multiply random variables by deltatime until it works

[sterile nest]

no, becasue for breeding they have to be a certain distance away. But when I do what you mentioned it just ignores that logic since they are moving too fast

[unique geode]

i was wondering if i could make an ios app using python, was thinking of making a game

[sterile nest]

I think its going pretty well

[honest heron]

I need some help scaling this image down to actually look like a snail enempy

this is how the snail actually looks

[pine plinth]

there are functiona for scaling surfaces

do you need anything specific?

[honest heron]

I just started so I’m not sure which function I can use

I have my background set but I couldn’t figure out how to scale it down I didn’t know that there were functions for that thanks

[limber veldt]

pygame.transform.scale() or .rotozooom()

[raven kernel]

or .scale_by

[limber veldt]

I use GIMP quite often for images, it's quirky but works fine

Is there a tool that can do pixel for pixel scaling, such that the edges retain their sharpness? Like what is one pixel becomes four or nine with 2x or 3x scaling, for example?

[raven kernel]

I believe you just need to set "interpolation" to None

[limber veldt]

Ahh, perhaps, I will try that right now

Thanks

Yep, that's working fine, awesome

[sterile nest]

How should I do the predators and prey for more complex systems?
Like what I mean is, I would have like 10 different entities. Do I make a calculation for fitness or something?
Or should I just make a food tree in a way

[limber veldt]

They would each need an ideal weight of some kind and the abiity to overeat and lose fitness?

[sterile nest]

yeah I suppose so

I should keep it simplier

[silk hinge]

Hello! I'm trying to get midi output working with pygame, and have stumbled across an error. Whenever I do pygame.midi.Output(midi_port) I get an error. My program is the following:

import pygame.midi

pygame.midi.init()

def print_devices():
    for n in range(pygame.midi.get_count()):
        print(n, pygame.midi.get_device_info(n))

print_devices()

midi_port = pygame.midi.get_default_output_id()

print(f"\nThe default midi port is: {midi_port}\n")

midi_output = pygame.midi.Output(midi_port)

When I run this program I get as an output:

pygame 2.5.2 (SDL 2.28.3, Python 3.12.1)
Hello from the pygame community. https://www.pygame.org/contribute.html
0 (b'MMSystem', b'Microsoft MIDI Mapper', 0, 1, 0)
1 (b'MMSystem', b'Microsoft GS Wavetable Synth', 0, 1, 0)

The default midi port is: 0

Unable to open Midi OutputDevice=0: b"PortMidi: `Host error'"

What's weird is that this program worked on Windows 8 and now on Windows 10 it doesn't work. Perhaps there is some menu somewhere where I can "open" the output device?
Please if you know what to do then tell me as this is the same issue as on https://www.reddit.com/r/pygame/comments/htsh5x/windows_10_unable_to_open_input_from_any_midi/?sort=new and https://www.reddit.com/r/pygame/comments/ut58t9/problem_with_opening_audio_channels_on_windows/ though it doesn't have any working answers. I have also tested it with the official pygame midi examples and it has also given me the same error, leading me to believe something must be done on the OS side and that this is not an error in my usage of the library.

[trail sequoia]

hello can someone help me. I don't know where to ask but i am doing some coding game about battleships game and i don't know what strategy use for finding boats because i think random shooting is too long and because i am not very good programmer and idk how to do that advanced machine learning things etc.

this is my code :

import requests
import random

endpoint =  1

x = 5
y = 5

def shooting():
    global x
    global y
    if grid[x][y] == ".":
        x += 1
        print(f"focusing on x: {x} y: {y}")
        if x > 5 and y > 6:
            while True:
             x -= 1

while True:
    avengers = ["Thor", "hulk", "Iron Man"]
    endpoints = ["fire", f"fire/{x}/{y}", f"fire/{x}/{y}/avenger/{avengers[0]}", "reset"]


    token = ""
    headers = {
        "Authorization": f"Bearer {token}"
    }


    # odeslání 
    url = f"https://europe-west1-ca-2023-dev.cloudfunctions.net/battleshipsApi/{endpoints[endpoint]}"
    response = requests.get(url, headers=headers)
    data = response.json()
    print(data)

    # zobrazení pole
    grid_string = data["grid"]

    grid = [[0 for _ in range(12)] for _ in range(12)]

    for i in range(12):
        for j in range(12):
            grid[i][j] = grid_string[i * 12 + j]

    for row in grid:
        print(' '.join(row))

    if "X" not in data["grid"]:
        shooting()

[limber veldt]

My chip tester now properly wires 8 or 16 pin chips and prototypes

One could always 'solder' the ports to ports themselves but having the autowire is a convenience

And I could place the thing anywhere, just have it laying in that room for now

Makes sense to have it in that room though, close to the burner

Those squares with stems are switces that can be either input or output, depending on the type of port wired to them. With those new unburned and unloaded chips, the pins are undefined, neither input nor output, so all the stems and ports remain undefined

In this 8 pin chip, I've loaded the wallhugger circuit and the pins of the tester change accordingly

In the process of making that, I made switches that can be any length, here's a few

They can be rotated, moved, and input/output/undefined

The original game nor the Java port had switches like this, it's a nice addition

One can more easily observe an output or switch an input

Of the sensors in the screenshot, the directional one is also using the same stem objects, but those on it are defined and locked as outputs

[fierce turret]

I am a very "newish" to Python myself, but if you are doing this: https://www.panaxeo.com/coding-arena, then there is a LOT of factors to consider. Maybe optimize to find the Helicarrier first so you get your bonus. ( For example it can't be in any corners; 12:12, -12:12, 12:-12 or -12:-12.) If you hit something, check east/west, north/south. if that hits check corners. y=y x+1, x=x y+1 etc. If that doesnt hit check the hit before opposite direction of last hit. If that hits its the helicarrier, but that is 13 steps to find the Helicarrier. You could maybe check 3 grid in each direction, but then it finds nothing if it is in the middle. Then you have to check 2 grids in each direction etc. But that could also be the Carrier so you have to check corners either way..

[night mirage]

hey guys

can someone help me out with a code im working on

its annoying the living shit outta me

been tweaking for past few hours and still no clean way i found

https://github.com/Kidd-buu/ant_turtle_sim/blob/main/Ant_Turtle_sim_2023.py

Im trying to have have the python def launch_reaper()
disabled or at least make the reaper.hideturtle go into effect

once i press the F2 button from

screen.onkeypress("F2")

any help?

[trail sequoia]

ok i will try

[sterile nest]

what is the reaper supposed to do

@night mirage I can help you if you'd like. Not sure if this is what you were trying to do

[sterile nest]

I have a question. When you increase with your speed button, do you just multiply your delta time?

[limber veldt]

I have a room_display() method running on a timer, when I increase speed, it reduces the delay of that timer

[sterile nest]

Cuase thats what I've been doing with my sim for now. Though I can only go upto 8x speed until they start having broken behavoir

how are you able to call the method on a timer? Are you just using the pygame timer?

[limber veldt]

No, my Timer() object

Just a dt accumulator

[sterile nest]

and you are changing (decreasing) the max accumulated time when you increase speed, so it updates faster right?

[limber veldt]

Exactly

[sterile nest]

like, lets say the game would update every 60 seconds with max_dt = 60.
I add delta time to a variable, then, for every frame I check if its exceeded max_dt? And if it has I set it back to 0 and do an action?

[limber veldt]

Here I instance the timer...

Giving it a duration and a function

Here in the object's update() method...

So timer is always being updated with the value of slider

Not updated, really, but set

[sterile nest]

Ah okay, I think I get it now

let me try something

[limber veldt]

And room_display() just evaluates devices....pretty much

[sterile nest]

I do have a question about your timer object though.
When you update your speed, are you just doing something like.
timer.step_time = new_step_time

[limber veldt]

That method in its current state https://paste.pythondiscord.com/OKVA

And eval()

[limber veldt]

Yes

Notice at the end of room_display(), reactivating the timer, so it's always running

I put my player animation on its own timer, basically doing the same thing though, calling the player.animate() method with a delay

A small look at how I handle portals and warping from level to level. My level objects have an attribute .portal = None. But when player fully collides with a portal wall tile (an object) in the current level, it sets portal = <portal object> which has a couple of attributes for what kind of portal it is

room_display() checks the current level portal attribute

And if True, starts a different level

And while the timer is always running, eval() has an opening condition to stop it from happening if the remote (power switch to the sim) is turned off (red dot in the menu bar and red antenna over player's head)

And just because...the Portal() object, note the touched_by_item() method https://paste.pythondiscord.com/AH4A

Currently pondering adding images to the portal, so it can do some simple 'portal' animation

So gave it an optional images arg

The game has like 50 portals scattered about all its levels, and I always send images to objects after preloading them, never loading assets inside the gameloop

So I need to work through all those the instances and send the images to the Portal objects, tedious

Then add something to that animate() method

[sterile nest]

ok, i think I got it

I need to add a timescale slider real fast

[limber veldt]

One could use a few different kind of timers. I learned the one I use from ClearCode and some of the guys on his discord, there may be even better timers or better methods, but this is working well for this game

Custom USEREVENTs, for example

And the event queue

In some cases, I just use dt accumulators where ever and when ever I need a simple timer

With my state machine setup, it's easy to instance a timer during init of any state

self.timer = 0, self.delay = 1000, self.timer += dt, if self.timer >= self.delay: do something

[sterile nest]

Ignore all the random things going on. I just made it so they will chase eachother as a test to see if the movement logic works with the update (which it does)

[limber veldt]

Oh nice

My so-called physics on most things breaks at high speeds, tunneling

[sterile nest]

yeah mine was doing that before. But with this new update system I dont have that issue anymore

[limber veldt]

Like if obstacle is only 50 wide and vector is 75 long...

[sterile nest]

Ah , you are multiply speed directly by the time scale and delta time I think

Thats the issue I was having

ah nvm

thats something else

[limber veldt]

They call it tunneling, when a single frame of movement totally misses another object

[sterile nest]

you could implement some sort of ray tracing system. Where it checks the collision beforehand

[limber veldt]

A priori collisions

I've done that before

[sterile nest]

No idea what that means, but I will look it up

[limber veldt]

Especially in a world of static objects and like a moving ball, one can calculate all the collisions before they actually happen

[sterile nest]

Okay, yeah thats what I was talking about sort of

[limber veldt]

seek() and arrive() methods, so moving objects slow as they arrive

[sterile nest]

something like that

[limber veldt]

Some arrive() methods on those cards, hah

[sterile nest]

yeah thats pretty cool. Sort of like a limit

[limber veldt]

The slide right into position

[sterile nest]

Im guessung you're dividing the current distance by the max distance and what not

or something like that

[limber veldt]

Setting velocity based on distance within a certain limit

Like within 100 px, start slowing

[sterile nest]

yeah makes sense. Pretty cool

I need to add something like that

[limber veldt]

One of my original games, not based on anything really

But that card game

[sterile nest]

I'm trying to find a way rn to prevent entities from going through eachother lol.

I'm thinking about just stopping all movement when they come within a certain distance from the other entity

But I might add like a push feature

so I would need to add momentum etc

[limber veldt]

You can check distance_squared() for something fast, like only for a trigger

But even so, those calls add up fast

Like if you have 100 objects and all of them are checking distance to each other, that's like 10k distance checks

[sterile nest]

This is what Im doing for collisions

Like detections for other entities

Using 3 filters. The initial rect. The distance for the cone, then the angle

[limber veldt]

Now days, I just use pygame collision methods

[limber veldt]

rect collisions?

pygame groups kickass, imo

[sterile nest]

Well, Its weird. I want all the entities inside the color area, but pygame doesnt allow custom collision objects like polygons.
So I used a rect to filter them

[limber veldt]

Oh that's a good idea, I see what you're doing there

Like a broad to narrow

[sterile nest]

Yup

though, I recently disovered circle collide...so I might check that out

Would remove 2 checks

then I would just need to check the angle

[limber veldt]

Circles are really fast to check

[sterile nest]

https://www.pygame.org/docs/ref/sprite.html#pygame.sprite.collide_circle
sounds like what im already doing in a way

[limber veldt]

There are a couple of pygame collision methods that take a collide parameter, one can add their own collision check method there

If left out of the call, it defaults to its own default collision checks using the rects

[little copper]

I have a couple of question about gamedev

What are specialization in game dev ? Is there a video going throught them all or any kind of way to know them all ?

[limber veldt]

I'm not sure what that means

[sterile nest]

ah okay. So it requires a rect sprite. Im just using rects rn.
Im not sure what to do tbh. Since the rect can grow depending on the view distance. Can you transform and scale sprites?

[limber veldt]

You can inflate() rects to resize them. I think you're method just using rects is fine, but sprites can have other rect attributes, too, just would need to update their positions with the sprite positions

Like you are already doing

[sterile nest]

Well at the moment, I am legit creating a new rect for every entity every frame..so...

Since as they got older the view distance grows, which means the detection also grows

[limber veldt]

You might optimize it be just assigning pre-defined rect positions as the object moves

I dunno

Oh ok

[sterile nest]

yeah thats what I plan on doing. Just assigning a sprite to each sprite, then scaling and whatnot

instead of making a new one

[limber veldt]

Are you using vectors for your movement?

[sterile nest]

yes

[limber veldt]

I use a lot of offsets on my objects to pin other things to them

Like my gate objects have offsets defining where to draw their stems, since they are separate objects

[sterile nest]

I use a vector for direction, then a value for speed.

[limber veldt]

Right on

And multiply that by dt?

[sterile nest]

yup

well actually

now that I have this new update system, I removed delta time from my movement function since im already accumulating time

[limber veldt]

I think that's the classical way of moving things in 2d

Right on, now that you have to scale updates

I really started learning how to use vectors like three years ago. Like used them before but didn't grind them enough to understand like I do now

Coding Train's Nature of Code series

[sterile nest]

Yeah im legit reading a linear alg book . I started yesterday since I really love game dev

Coding train is awesome

[limber veldt]

That's what gets me, the mechanics

Love that shit

[sterile nest]

havent made any of his things, but I have watched the videos

like the perlin noise, boids etc. Super cool stuff

[limber veldt]

Yeah, he's so good at explaining, even though not in python, the logic is the same

[sterile nest]

yeah and since its in Js its pretty easy to translate

this.attribute = self.attribute etc

[limber veldt]

Right on

Freya Holmer is really good too, really deeeeeep too

It's hard to find deep dives into game mechanics, just the logic itself, not specific to any engine or whatever

That's why I like pygame, let's me do my own coding for anything. Thought about trying some Godot or even Unity or Unreal

A lot of coding there too but a lot of coding pre-existing objects

[sterile nest]

yeah I agree, Its annoying also . Trying to find an example and its all just for another engine or something. Yeah I was gonna do godot, but I need more experience first.

I gtg for a few

[limber veldt]

Have a good one

I'm just considering my next refactor, I could do many things better in this project

[sterile nest]

yeah, I've been planning long term for a future project

trying to decide how I want to save levels and other things

I'm thinking of making layers

then I can like..go.inskde a house and render layer 2 or something

[honest heron]

this code doesnt start

it was starting until i tried to add death mechanic via collision

if enemy_rect.colliderect(player_rect):
pygame.quit()
exit()

[sterile nest]

Starting positions are the same

or close

try moving them apart and see if thats the issue

[honest heron]

that isnt the issue @sterile nest

ive had it like that

since like I started my project

i messed with it and it just was the only intergers that kept my character and enemy to the floor

idk how to explain it

but the code stopped working after that I just changed it and it wasnt the issue.

[sterile nest]

can I see the full code

[sterile nest]

im back. I added momentum. Though, by adding this 1 function. I can only do 2x time scale at 200 objects now

[honest heron]

@sterile nest I dmed u the code

[limber veldt]

Not bad though, looks pretty busy with that many

[limber veldt]

So I made a condition for my player.moveUP() method to automatically enter things that have internal rooms, can still enter using the E key, too

Like so

This is one way to enter room

s

Or house

For the prototype chips, since they have no exits, one must use the X key to exit

I'll probably repeat the process for moving the other directions

Since my internal room objects should be enterable from all directions (nsew)