UNMAINTAINED

This library it's really important to me, however I've been focusing on my own game framework and thus this library got unmaintained.

If you need bindings of raylib for Nelua, you should check out Kenta's one, it's updated and covers more of raylib stack: https://github.com/Its-Kenta/Raylib.nelua

raylib-nelua

This is a Raylib binding for Nelua language.

How to use

First, install Nelua language and Raylib library.

Then, you can use raylib.nelua, you can use it as a project file or as a external library:

As project file

Just move raylib.nelua file to your project.

As external library

Clone or download this repository somewhere and then either:

• use the -L option, for example: nelua -L ~/path/to/nelua-raylib my-game.nelua
• use a neluacfg.lua script on the project's root directory or on your $HOME/.config/nelua with the content return { add_path = {'/path/to/nelua-raylib'} } (See about this here)

Quick Raylib-nelua specific changes:

This binding contains some extra features to better integrate with nelua language:

• unbounded arrays are specified on arguments and return types; for example, Raylib.GetWaveData returns a *[0]float32 instead of just *float32
• for every record an is_* field is defined on the type information; for example, ## rAudioBuffer.value.is_raudiobuffer is true;
• several functions are also applied to records, for example, function Camera.UpdateCamera(camera: *Camera) is defined, which can be used as a method camera:UpdateCamera();
• operator overloading functions for raymath.hfunctions defined:
  • Vector2:
    • __add: calls Vector2Add
    • __sub: calls Vector2Subtract
    • __len: calls Vector2Length
    • __unm: calls Vector2Negate
    • __div: calls Vector2Divide or Vector2DivideV
    • __mul: calls Vector2Scale or Vector2MultiplyV
  • Vector3:
    • __add: calls Vector3Add
    • __sub: calls Vector3Subtract
    • __len: calls Vector3Length
    • __unm: calls Vector3Negate
    • __mul: calls Vector3Scale or Vector3Multiply
    • __div: calls Vector3Divide or Vector3DivideV
  • Matrix:
    • __add: calls MatrixAdd
    • __sub: calls MatrixSubtract
    • __mul: calls MatrixMultiply
  • Quaternion:
    • __len: calls QuaternionLength
    • __mul: calls QuaternionMultiply

NOTE: TraceLogCallback and SetTraceLogCallback aren't imported

Example

require 'raylib'

-- [[ Initialization [[
local screen_width: integer <comptime> = 800
local screen_height: integer <comptime> = 450
Raylib.InitWindow(screen_width, screen_height, "raylib-nelua [core] example - keyboard input")

local ball_position: Vector2 = { screen_width / 2, screen_height / 2}

Raylib.SetTargetFPS(60) -- Set our game to run at 60 frames-per-second
-- ]] Initialization ]]

-- [[ Main game loop [[
while not Raylib.WindowShouldClose() do -- Detect window close button or ESC key
  -- [[ Update [[
  if Raylib.IsKeyDown(KeyboardKey.KEY_RIGHT) then
    ball_position.x = ball_position.x + 2
  end
  if Raylib.IsKeyDown(KeyboardKey.KEY_LEFT) then
    ball_position.x = ball_position.x - 2
  end
  if Raylib.IsKeyDown(KeyboardKey.KEY_UP) then
    ball_position.y = ball_position.y - 2
  end
  if Raylib.IsKeyDown(KeyboardKey.KEY_DOWN) then
    ball_position.y = ball_position.y + 2
  end
   -- ]] Update ]]

   -- [[ Draw [[
  Raylib.BeginDrawing()
    Raylib.ClearBackground(RAYWHITE)
    Raylib.DrawText("move the ball with arrow keys", 10, 10, 20, DARKGRAY)
    Raylib.DrawCircleV(ball_position, 50, MAROON)
  Raylib.EndDrawing()
  -- ]] Draw ]]
end

-- [[ De-Initialization [[
Raylib.CloseWindow() -- Close window and OpenGL context
-- ]] De-Initialization ]]