Group example utils into folder

Examples/Shared/Rlights.cs

@@ -0,0 +1,90 @@
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Shared;
+
+public struct Light
+{
+    public bool Enabled;
+    public LightType Type;
+    public Vector3 Position;
+    public Vector3 Target;
+    public Color Color;
+
+    public int EnabledLoc;
+    public int TypeLoc;
+    public int PosLoc;
+    public int TargetLoc;
+    public int ColorLoc;
+}
+
+public enum LightType
+{
+    Directorional,
+    Point
+}
+
+public static class Rlights
+{
+    public static Light CreateLight(
+        int lightsCount,
+        LightType type,
+        Vector3 pos,
+        Vector3 target,
+        Color color,
+        Shader shader
+    )
+    {
+        Light light = new();
+
+        light.Enabled = true;
+        light.Type = type;
+        light.Position = pos;
+        light.Target = target;
+        light.Color = color;
+
+        string enabledName = "lights[" + lightsCount + "].enabled";
+        string typeName = "lights[" + lightsCount + "].type";
+        string posName = "lights[" + lightsCount + "].position";
+        string targetName = "lights[" + lightsCount + "].target";
+        string colorName = "lights[" + lightsCount + "].color";
+
+        light.EnabledLoc = GetShaderLocation(shader, enabledName);
+        light.TypeLoc = GetShaderLocation(shader, typeName);
+        light.PosLoc = GetShaderLocation(shader, posName);
+        light.TargetLoc = GetShaderLocation(shader, targetName);
+        light.ColorLoc = GetShaderLocation(shader, colorName);
+
+        UpdateLightValues(shader, light);
+
+        return light;
+    }
+
+    public static void UpdateLightValues(Shader shader, Light light)
+    {
+        // Send to shader light enabled state and type
+        Raylib.SetShaderValue(
+            shader,
+            light.EnabledLoc,
+            light.Enabled ? 1 : 0,
+            ShaderUniformDataType.SHADER_UNIFORM_INT
+        );
+        Raylib.SetShaderValue(shader, light.TypeLoc, (int)light.Type, ShaderUniformDataType.SHADER_UNIFORM_INT);
+
+        // Send to shader light target position values
+        Raylib.SetShaderValue(shader, light.PosLoc, light.Position, ShaderUniformDataType.SHADER_UNIFORM_VEC3);
+
+        // Send to shader light target position values
+        Raylib.SetShaderValue(shader, light.TargetLoc, light.Target, ShaderUniformDataType.SHADER_UNIFORM_VEC3);
+
+        // Send to shader light color values
+        float[] color = new[]
+        {
+                (float)light.Color.R / (float)255,
+                (float)light.Color.G / (float)255,
+                (float)light.Color.B / (float)255,
+                (float)light.Color.A / (float)255
+            };
+        Raylib.SetShaderValue(shader, light.ColorLoc, color, ShaderUniformDataType.SHADER_UNIFORM_VEC4);
+    }
+}