add more examples

examples/shaders/texture_tiling/main.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+func main() {
+	screenWidth := int32(800)
+	screenHeight := int32(450)
+
+	rl.InitWindow(screenWidth, screenHeight, "raylib [shaders] example - texture tiling")
+
+	cam := rl.Camera3D{}
+	cam.Position = rl.NewVector3(4, 4, 4)
+	cam.Target = rl.NewVector3(0, 0.5, 0)
+	cam.Up = rl.NewVector3(0, 1, 0)
+	cam.Fovy = 45
+	cam.Projection = rl.CameraPerspective
+
+	cube := rl.GenMeshCube(1, 1, 1)
+	model := rl.LoadModelFromMesh(cube)
+
+	texture := rl.LoadTexture("cubicmap_atlas.png")
+	rl.SetMaterialTexture(model.Materials, rl.MapDiffuse, texture)
+
+	tiling := []float32{3, 3}
+	shader := rl.LoadShader("", "tiling.fs")
+	rl.SetShaderValue(shader, rl.GetShaderLocation(shader, "tiling"), tiling, rl.ShaderUniformVec2)
+	model.Materials.Shader = shader
+
+	rl.DisableCursor()
+
+	rl.SetTargetFPS(60)
+
+	for !rl.WindowShouldClose() {
+
+		rl.UpdateCamera(&cam, rl.CameraOrbital)
+
+		if rl.IsKeyPressed(rl.KeyZ) {
+			cam.Target = rl.NewVector3(0, 0.5, 0)
+		}
+
+		rl.BeginDrawing()
+
+		rl.ClearBackground(rl.RayWhite)
+
+		rl.BeginMode3D(cam)
+
+		rl.BeginShaderMode(shader)
+		rl.DrawModel(model, rl.Vector3Zero(), 2, rl.White)
+		rl.EndShaderMode()
+
+		rl.DrawGrid(10, 1)
+
+		rl.EndMode3D()
+
+		rl.EndDrawing()
+	}
+
+	rl.UnloadShader(shader)
+	rl.UnloadModel(model)
+	rl.UnloadTexture(texture)
+
+	rl.CloseWindow()
+}