Atlas texture repeat example.

1 files changed, 35 insertions, 0 deletions

diff --git a/examples/texture_atlas_repeat/main.lua b/examples/texture_atlas_repeat/main.lua
new file mode 100644
index 0000000..6056e71
--- /dev/null
+++ b/examples/texture_atlas_repeat/main.lua
@@ -0,0 +1,35 @@
+local atlas = nil
+local shader = nil
+
+local GLSL_VERSION = "330" -- PLATFORM_DESKTOP
+
+function RL.init()
+	RL.SetWindowTitle( "Texture atlas repeat shader" )
+	RL.SetWindowState( RL.FLAG_VSYNC_HINT )
+
+	local path = RL.GetBasePath().."../resources/"
+	local shaderPath = path.."/shaders/glsl"..GLSL_VERSION.."/"
+
+	shader = RL.LoadShader( shaderPath.."base.vs", shaderPath.."atlas_repeat.fs" )
+	atlas = RL.LoadTexture( path.."images/tiles.png" )
+
+	local loc = RL.GetShaderLocation( shader, "atlasSize" )
+	RL.SetShaderValue( shader, loc, RL.GetTextureSize( atlas ), RL.SHADER_UNIFORM_VEC2 )
+	loc = RL.GetShaderLocation( shader, "tileTexSize" )
+	RL.SetShaderValue( shader, loc, { 32, 32 }, RL.SHADER_UNIFORM_VEC2 )
+	-- Set texture for DrawTriangle.
+	RL.SetShapesTexture( atlas, { 32 * 4, 0, 32, 32 } )
+end
+
+function RL.update( delta )
+end
+
+function RL.draw()
+	RL.ClearBackground( RL.RAYWHITE )
+
+	RL.BeginShaderMode( shader )
+		RL.DrawTexturePro( atlas, { 0, 0, 32, 32 }, { 0, 0, 64, 64 }, { 0.0 }, 0.0, RL.WHITE )
+		RL.DrawTexturePro( atlas, { 32, 0, 32, 32 }, { 0, 64, 128, 64 }, { 0.0 }, 0.0, RL.WHITE )
+		RL.DrawTriangle( { 32, 200 }, { 128, 400 }, { 320, 240 }, RL.WHITE )
+	RL.EndShaderMode()
+end