Spawn A Part Within Radius Around Player, Only On-top Certain Part

[opal sparrow]

I'm trying to spawn a part around the player within a radius, however only on the same part as the player (if standing on the edge, it cant spawn outside the part's region, like a part-masked radius)

I'm a little stumped trying to figure out how to do this and I've tried looking it up a good bit, but it seems a little specific

spawning part AROUND the player, but only within the bounds of the darker green block, I dont want to spawn ANYWHERE on the green block because I dont want it to be on the other side

[mint pecan]

bunch of different ways you can do this. the first one is designated spawn zones like ZonesPlus module and you use the zone parts as spawning areas. another way is raycast downward from the character to get the part they're standing on (or use a ControllerPartSensor set to Floor sensormode to get the part) and then calculate a spawn area based on the part's size and position

[opal sparrow]

I already have the part reference, I'm just trying to spawn a part in a radius around the player, but make sure its within the region of that part

Can zoneplus do something like that? I havent looked into it before, and I dont know if I'd really want a whole new sort of zone module when I already got a system for my spawn zones going

[mint pecan]

when you have a spawn zone, the "spawn in radius around character within spawn zone" is the easy part

defining the spawn zone is the hard part of this

[opal sparrow]

would it not be like.. Part.Size.X/2 and Part.Size.Z/2 to get the.. well I guess that would end up being circular shaped

[mint pecan]

that would be a box not a circle

[opal sparrow]

I was thinking of magnitude in my head

[mint pecan]

circles are different

[opal sparrow]

how would you end up making something like this work? assuming you have the player position and the part as the defined zone

[mint pecan]

uniform distribution on a circle is also not as straight forward as it is for a box

[opal sparrow]

I only really need box

[mint pecan]

well from the part you need to define a bounding box

the boundaries of the spawn zone are how you limit the spawning radius to within the spawn zone only

you can use the part's x and z sizes to define the edges, but depending on what you want, i.e specifically in an area around the player instead of anywhere in the zone, you just need to refine the spawn zone that way

it's just vector math

bit of extra work tho if you want spawn zones that are not axis aligned (e.g rotated zone)

[opal sparrow]

yeah that makes sense to me, im just wondering how you'd refine that zone with the player radius

[mint pecan]

vector math

[opal sparrow]

figured it out

local spawnPos = part.Position + Vector3.new(math.random(-part.Size.X/2, part.Size.X/2),0,math.random(-part.Size.Z/2, part.Size.Z/2))
local direction = (spawnPos - player.Character.HumanoidRootPart.Position).Unit
spawnPos = player.Character.HumanoidRootPart.Position + direction * math.random(6,20)```

well, actually the direction movement could push them outside the zone

so its not properly clamped

[mint pecan]

the direction.unit*distance changed your box into a circle

and yeah, it could push outside the zone

uniform distribution is a bit awkward with circles, even worse if you cut into the shape

best technique i can suggest for you if you want to keep the circle is to roll a random position repeatedly and reject the ones that fall outside the boundary. This is a real technique that is sometimes used for uniform distribution in odd shapes like this.

it's not pretty but you can have a working implementation pretty quickly and move onto other things

[opal sparrow]

yeah I know thats why I was saying the only solution I could think of would turn it to a circle 😭

[hollow hemlock]

** You are now Level 3! **

[opal sparrow]

idc about keeping a circle im just trying to keep it around my player within the part

[mint pecan]

i don't think anyone is going to notice if the spawning happens in a square around the player instead of a circle

the math is a lot easier and you don't have to do the guess-until-valid-location thing

[opal sparrow]

idk how to keep it around the player but also a square and also within the bounds of the part

[mint pecan]

you need 2 spawn zones, one around the player and another is the actual spawn zone

you then limit the bounds of the player's spawn zone to within the larger spawn zone

it's quite simply a game of keeping a smaller cube inside the bigger cube

[opal sparrow]

hmm, is there a way to do a sort of math.clamp kinda action?

[mint pecan]

yeah

it's just math.clamp

[opal sparrow]

okay well yeah but

💀

[mint pecan]

obviously you don't need a physical part for the player's spawn zone. just use math to define it

[opal sparrow]

only player X is leaving BaseSpawnZone, how do I clamp the PlayerSpawnZone X within the BaseSpawnZone region

[mint pecan]

math

[opal sparrow]

local spawnPos = part.Position + Vector3.new(math.random(-part.Size.X/2, part.Size.X/2),0,math.random(-part.Size.Z/2, part.Size.Z/2))

[opal sparrow]

thats all youve been saying 😭

[mint pecan]

yea its just math

[opal sparrow]

💀

no duh

[mint pecan]

so wats the issue?

[opal sparrow]

I dont know the exact math thing to do here? thats why im asking this question in the first place 😭

[mint pecan]

vector math

this may help you, specially the first section on pythag https://www.youtube.com/watch?v=DPfxjQ6sqrc

[opal sparrow]

what sort of vector math, idk what I need to do still

I know vector math generally

[mint pecan]

you just said you don't know the exacts

manipulating boxes and cubes is the easiest part of learning vector math

[opal sparrow]

yeah im just asking how to clip a region to a certain region

[mint pecan]

operate on each component?

probably easiest to use a topleft,bottomright vector pair for 2 opposite corners, clamp both, and what's left is the spawn zone

otherwise you have to do weird stuff with pushing the center of the cube around

it's as simple as topleft=min(x1,x2),min(y1,y2) etc bottomright=max(x1,x2),max(y1,y2) etc

[opal sparrow]

I think the hard part in my head is clamping the actual spawn region hrp.Position + Vector3.new(math.random(-10,10),0,math.random(-10,10)) by the baseSpawnRegion part.Position + Vector3.new(math.random(-part.Size.X/2, part.Size.X/2),0,math.random(-part.Size.Z/2, part.Size.Z/2))

Would I just add a math.clamp(... but like, yeah I would sure but, im just confused on what im clamping by what, like the baseRegion variable will just give me a position within the region, and my playerRegion variable will just give me a position around my player, but then, do I clamp the... I just dont know where I'd put the clamp

math.clamp is for clamping a number within 2 other numbers, but im clamping... a vector3 position... by another vector3 position???

[mint pecan]

you're clamping a box within another box, not a point within a box

[mint pecan]

so the math is a little different but still fairly trivial

this is best way i can show you without giving you code as an answer. it's always better if you're able to solve on your own that's how you get real understanding