not able to load texture when in thread

[elder pawn]

you can only call gl functions from one thread

[grim trellis]

oh, so how would i go about making a loading screen then?

because if i load everything, the game wont go to its next iteration untill everything is loaded

[elder pawn]

only the gl part has to be in the main thread

but other than that, you would have to split the loading work

[grim trellis]

aha, meaning i need to call every texture load before the game even started? (which sounds obvious, but enums make that really anoying)

[elder pawn]

you need to load the textures before it started

but for textures for example you can load an image in any thread

then LoadTextureFromImage in the main thread

[grim trellis]

yea that XD

but then enums are really anoying, they only initialize when you call them, meaning that i need to call every enum before even starting the update loop (or in the first iteration, but same thing)

[elder pawn]

what enums?

[grim trellis]

its like a class you define once (like any other)
but at the top of that class you make all the instances that exist of that class
This is really handy for textures, its kinda like a lot of singletons grouped together
in this screenshot for example, there is the class Textures.
that has a string as parameter (a path to the file)
this then inits the class with that texture

then you can write Textures.ITEM_APPLE and you have that instance

but the problem is that it wont load that instance untill it is accesed once

[near sandal]

you don't have to load them all at startup, but you do have to upload the texture data to the GPU in the main thread.

you can trickle them in as needed

you don't have to block and load them all in the same frame

[elder pawn]

also I don't know when that code is run. at startup?

[median kayak]

I literally just made test on this 😁. I just made simple system where delta time is the amount of time it has to load stuff at a time. Here is my Lua code if it helps. # in front of var means the amount on items the array has if you are not familiar with Lua.

if #textures < #files then
        local loadTime = os.clock() + delta

        while #textures < #files and os.clock() < loadTime do
            table.insert( textures, RL.LoadTexture( files[ #textures + 1 ] ) )
        end

[median kayak]

maybe delta should be replased with fixed value.

[grim trellis]

everytime when i change scene group
(and a scene group is also something i made lol.
the gamemanager always continues its loop by calling the loop inside a 1 scene (the one that is currently active).
to switch from scene i just swap them if they are in the same group
if they are not a new scene group gets loaded. and this is that loadfunction at the top
(this system is a bit like ship of fools. Once in spawn you are at spawn, the sapwn scene group is currently there.
if you then go at sea, the first sea group gets loaded. But switching scenes in that same sea wont need any loading, just enabeling is enough. Loading was done at the start of the group) and then when switching from sea A to sea B. you change the group again