Magic_Game/Easy2D/etransitions.h

#pragma once
#include "ebase.h"
#include <chrono>

namespace e2d
{

class ETransition :
	public EObject
{
	friend EApp;

public:
	ETransition(float duration);

	// <20><><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
	bool isEnding();

protected:
	// <20><><EFBFBD>¶<EFBFBD><C2B6><EFBFBD>
	virtual void _update() = 0;

	virtual void _init() = 0;

	virtual void _reset() = 0;

	virtual bool _isDelayEnough();

	virtual void _stop();

	// <20><><EFBFBD>浱ǰ<E6B5B1><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
	void _setTarget(
		EScene * prev,
		EScene * next
	);

protected:
	bool m_bEnd;
	float m_fTotalDuration;
	float m_fDuration;
	float m_fRateOfProgress;
	EScene * m_pPrevScene;
	EScene * m_pNextScene;
	std::chrono::steady_clock::time_point m_tLast;
};


class ETransitionFade :
	public ETransition
{
public:
	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵭<EFBFBD><EBB5AD>ʽ<EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD>
	ETransitionFade(
		float fadeOutDuration,	/* ǰһ<C7B0><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
		float fadeInDuration	/* <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>붯<EFBFBD><EBB6AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
	);

protected:
	// <20><><EFBFBD>¶<EFBFBD><C2B6><EFBFBD>
	virtual void _update() override;

	virtual void _init() override;

	virtual void _reset() override;

protected:
	float m_fFadeOutDuration;
	float m_fFadeInDuration;
	bool m_bFadeOutTransioning;
};


class ETransitionEmerge :
	public ETransition
{
public:
	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD>
	ETransitionEmerge(
		float duration	/* <20><><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
	);

protected:
	// <20><><EFBFBD>¶<EFBFBD><C2B6><EFBFBD>
	virtual void _update() override;

	virtual void _init() override;

	virtual void _reset() override;
};


class ETransitionMove :
	public ETransition
{
public:
	enum MOVE_DIRECT
	{
		UP,
		DOWN,
		LEFT,
		RIGHT
	};

	// <20><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>ʽ<EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD>
	ETransitionMove(
		float moveDuration,			/* <20><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> */
		MOVE_DIRECT direct = LEFT	/* <20><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD> */
	);

protected:
	// <20><><EFBFBD>¶<EFBFBD><C2B6><EFBFBD>
	virtual void _update() override;

	virtual void _init() override;

	virtual void _reset() override;

protected:
	MOVE_DIRECT m_Direct;
	EVec m_Vec;
	EPoint m_NextPos;
};

}