add multiplyColor transformation

motion/Actuate.hx

@@ -484,6 +484,29 @@ private class TransformOptions {
 	}
 
 
+	/**
+	 * Creates a new ColorTransform tween
+	 * @param	r		The r color value
+	 * @param	g		The g color value
+	 * @param	b		The b color value
+	 * @param	alpha		The end alpha of the target. If you wish to tween alpha and tint simultaneously, you must do them both as part of the ColorTransform. A value of null will make no change to the alpha of the object (Default is null)
+	 * @return		The current actuator instance, which can be used to apply properties like ease, delay, onComplete or onUpdate
+	 */
+	public function multiplyColor (r:Float, g:Float, b:Float, alpha:Null <Float> = null):IGenericActuator {
+
+		var properties:Dynamic = { redMultiplier: r, greenMultiplier: g, blueMultiplier: b };
+
+		if (alpha != null) {
+
+			properties.colorAlpha = alpha;
+
+		}
+
+		return Actuate.tween (target, duration, properties, overwrite, TransformActuator);
+
+	}
+
+
 	/**
 	 * Creates a new SoundTransform tween
 	 * @param	volume		The end volume for the target, or null if you would like to ignore this property (Default is null)
@@ -690,4 +713,4 @@ private class ObjectHash <T> {
 
 #else
 typedef ObjectHash<T> = haxe.ds.ObjectMap<Dynamic, T>;
-#end
+#end

motion/actuators/TransformActuator.hx

@@ -56,6 +56,12 @@ class TransformActuator extends SimpleActuator {
 			initializeColor ();
 
 		}
+
+		if (Reflect.hasField (properties, "redMultiplier") && Std.is (target, DisplayObject)) {
+
+			initializeColorMultiply ();
+
+		}
 
 		if (Reflect.hasField (properties, "soundVolume") || Reflect.hasField (properties, "soundPan")) {
 
@@ -144,6 +150,45 @@ class TransformActuator extends SimpleActuator {
 		}
 
 	}
+
+
+	private function initializeColorMultiply ():Void {
+
+		endColorTransform = new ColorTransform ();
+
+		endColorTransform.redMultiplier = properties.redMultiplier;
+		endColorTransform.greenMultiplier = properties.greenMultiplier;
+		endColorTransform.blueMultiplier = properties.blueMultiplier;
+
+		var propertyNames:Array <String> = [ "redMultiplier", "greenMultiplier", "blueMultiplier", "redOffset", "greenOffset", "blueOffset" ];
+
+		if (Reflect.hasField (properties, "colorAlpha")) {
+
+			endColorTransform.alphaMultiplier = properties.colorAlpha;
+			propertyNames.push ("alphaMultiplier");
+
+		} else {
+
+			endColorTransform.alphaMultiplier = getField (target, "alpha");
+
+		}
+
+		var transform:Transform = getField (target, "transform");
+		var begin:ColorTransform = getField (transform, "colorTransform");
+		tweenColorTransform = new ColorTransform ();
+
+		var details:PropertyDetails;
+		var start:Float;
+
+		for (propertyName in propertyNames) {
+
+			start = getField (begin, propertyName);
+			details = new PropertyDetails (tweenColorTransform, propertyName, start, getField (endColorTransform, propertyName) - start);
+			propertyDetails.push (details);
+
+		}
+
+	}
 
 
 	private function initializeSound ():Void {