add ActionCustom

Kiwano/2d/ActionHelper.h

@@ -205,6 +205,12 @@ namespace kiwano
 			return TweenHelper(new kiwano::Animation(0, frames));
 		}
 
+		static inline TweenHelper
+			Custom(kiwano::ActionCustom::TweenFunc tween_func)
+		{
+			return TweenHelper(new kiwano::ActionCustom(0, tween_func));
+		}
+
 		static inline ActionHelper
 			Delay(Duration delay)
 		{

Kiwano/2d/ActionTween.cpp

@@ -259,16 +259,16 @@ namespace kiwano
 
 	ActionScaleBy::ActionScaleBy(Duration duration, float scale, EaseFunc func)
 		: ActionTween(duration, func)
+		, delta_x_(scale)
+		, delta_y_(scale)
 	{
-		delta_x_ = scale;
-		delta_y_ = scale;
 	}
 
 	ActionScaleBy::ActionScaleBy(Duration duration, float scale_x, float scale_y, EaseFunc func)
 		: ActionTween(duration, func)
+		, delta_x_(scale_x)
+		, delta_y_(scale_y)
 	{
-		delta_x_ = scale_x;
-		delta_y_ = scale_y;
 	}
 
 	void ActionScaleBy::Init(NodePtr target)
@@ -328,8 +328,8 @@ namespace kiwano
 
 	ActionOpacityBy::ActionOpacityBy(Duration duration, float opacity, EaseFunc func)
 		: ActionTween(duration, func)
+		, delta_val_(opacity)
 	{
-		delta_val_ = opacity;
 	}
 
 	void ActionOpacityBy::Init(NodePtr target)
@@ -389,6 +389,7 @@ namespace kiwano
 
 	ActionRotateBy::ActionRotateBy(Duration duration, float rotation, EaseFunc func)
 		: ActionTween(duration, func)
+		, start_val_()
 		, delta_val_(rotation)
 	{
 	}
@@ -485,6 +486,34 @@ namespace kiwano
 	}
 
 
+	//-------------------------------------------------------
+	// ActionCustom
+	//-------------------------------------------------------
+
+	ActionCustom::ActionCustom(Duration duration, TweenFunc tween_func, EaseFunc func)
+		: ActionTween(duration, func)
+		, tween_func_(tween_func)
+	{
+	}
+
+	ActionPtr ActionCustom::Clone() const
+	{
+		return new ActionCustom(dur_, tween_func_);
+	}
+
+	void ActionCustom::Init(NodePtr target)
+	{
+		if (!tween_func_)
+			this->Done();
+	}
+
+	void ActionCustom::UpdateTween(NodePtr target, float percent)
+	{
+		if (tween_func_)
+			tween_func_(target, percent);
+	}
+
+
 	//-------------------------------------------------------
 	// ActionDelay
 	//-------------------------------------------------------

Kiwano/2d/ActionTween.h

@@ -470,6 +470,39 @@ namespace kiwano
 	};
 
 
+	// 自定义动作
+	class KGE_API ActionCustom
+		: public ActionTween
+	{
+	public:
+		using TweenFunc = Closure<void(NodePtr, float)>;
+
+		ActionCustom(
+			Duration duration,		/* 持续时长 */
+			TweenFunc tween_func,	/* 过程函数 */
+			EaseFunc func = nullptr	/* 速度变化 */
+		);
+
+		// 获取该动作的拷贝对象
+		ActionPtr Clone() const override;
+
+		// 获取该动作的倒转
+		ActionPtr Reverse() const override
+		{
+			KGE_ERROR_LOG(L"Reverse() not supported in ActionCustom");
+			return nullptr;
+		}
+
+	protected:
+		void Init(NodePtr target) override;
+
+		void UpdateTween(NodePtr target, float percent) override;
+
+	protected:
+		TweenFunc tween_func_;
+	};
+
+
 	// 延时动作
 	class KGE_API ActionDelay
 		: public Action