Initial Commit

Assets/Plugins/Light2D/Editor/PassToggleDrawer.cs

@@ -0,0 +1,69 @@
+using UnityEditor;
+using UnityEngine;
+
+namespace Light2D
+{
+	public class PassToggleDrawer : MaterialPropertyDrawer
+	{
+		private string arg;
+
+		public PassToggleDrawer()
+		{
+		}
+
+		public PassToggleDrawer(string arg)
+		{
+			this.arg = arg;
+		}
+
+		static bool IsPropertyTypeSuitable(MaterialProperty prop)
+		{
+			return prop.type == MaterialProperty.PropType.Float || prop.type == MaterialProperty.PropType.Range;
+		}
+
+		public override void OnGUI(Rect position, MaterialProperty prop, string label, MaterialEditor editor)
+		{
+			if (!IsPropertyTypeSuitable(prop))
+            {
+                return;
+            }
+
+			// Setup
+			bool value = (prop.floatValue != 0.0f);
+
+			EditorGUI.BeginChangeCheck();
+			EditorGUI.showMixedValue = prop.hasMixedValue;
+
+			// Show the toggle control
+			value = EditorGUI.Toggle(position, label, value);
+
+			EditorGUI.showMixedValue = false;
+			if (EditorGUI.EndChangeCheck())
+			{
+				// Set the new value if it has changed
+				prop.floatValue = value ? 1.0f : 0.0f;
+				if (!string.IsNullOrWhiteSpace(arg))
+				{
+					foreach (Material target in prop.targets)
+					{
+						target.SetShaderPassEnabled(arg, value);
+					}
+				}
+			}
+		}
+
+		public override void Apply(MaterialProperty prop)
+		{
+			if (prop.hasMixedValue)
+				return;
+
+			if (!string.IsNullOrWhiteSpace(arg))
+			{
+				foreach (Material target in prop.targets)
+				{
+					target.SetShaderPassEnabled(arg, prop.floatValue != 0.0f);
+				}
+			}
+		}
+	}
+}