Magic_Game/Easy2D/egeometry.h

#pragma once
#include "ebase.h"


namespace e2d
{

class EPhysicsManager;
class ENode;
class EGeometry;

class EPhysicsMsg
{
	friend EPhysicsManager;

public:
	enum INTERSECT_RELATION
	{
		UNKNOWN = 0,		/* <20><>ϵ<EFBFBD><CFB5>ȷ<EFBFBD><C8B7> */
		DISJOINT = 1,		/* û<>н<EFBFBD><D0BD><EFBFBD> */
		IS_CONTAINED = 2,	/* <20><>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
		CONTAINS = 3,		/* <20><>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD> */
		OVERLAP = 4			/* <20><><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD> */
	};

	// <20><>ȡ<EFBFBD><C8A1>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>
	static INTERSECT_RELATION getMsg();

	// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	static EGeometry * getActiveGeometry();

	// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	static EGeometry * getPassiveGeometry();

public:
	static INTERSECT_RELATION s_nRelation;
	static EGeometry * s_pActiveGeometry;
	static EGeometry * s_pPassiveGeometry;
};

class EGeometry :
	public EObject
{
	friend EPhysicsManager;
	friend ENode;

public:
	EGeometry();

	// <20><>ȡ<EFBFBD><C8A1><EFBFBD>ڵ<EFBFBD>
	ENode * getParentNode() const;

protected:
	// <20>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD><EFBFBD>ϵ
	virtual EPhysicsMsg::INTERSECT_RELATION _intersectWith(
		EGeometry * pGeometry
	);

	// ת<><D7AA><EFBFBD><EFBFBD>״
	virtual void _transform();

	virtual ID2D1Geometry * _getD2dGeometry() const = 0;

protected:
	bool	m_bTransformNeeded;
	ENode * m_pParentNode;
	ID2D1TransformedGeometry * m_pTransformedGeometry;
};


class ERectangle :
	public EGeometry
{
public:
	// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>վ<EFBFBD><D5BE><EFBFBD>
	ERectangle();

	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD><CFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳ<EFBFBD><CDBF>ߴ<EFBFBD><DFB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	ERectangle(
		float x,
		float y,
		float width,
		float height
	);

	// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ͽڵ<CDBD>λ<EFBFBD>ô<EFBFBD>С<EFBFBD><D0A1>ͬ<EFBFBD>ľ<EFBFBD><C4BE><EFBFBD>
	ERectangle(
		ENode * node
	);

protected:
	void _setRect(
		float left,
		float top,
		float right,
		float bottom
	);

	virtual ID2D1RectangleGeometry * _getD2dGeometry() const override;

protected:
	ID2D1RectangleGeometry * m_pD2dRectangle;
};


class ECircle :
	public EGeometry
{
public:
	ECircle();

	ECircle(
		EPoint center,
		float radius
	);

protected:
	void _setCircle(
		EPoint center,
		float radius
	);

	virtual ID2D1EllipseGeometry * _getD2dGeometry() const override;

protected:
	ID2D1EllipseGeometry * m_pD2dCircle;
};


class EEllipse :
	public EGeometry
{
public:
	EEllipse();

	EEllipse(
		EPoint center,
		float radiusX,
		float radiusY
	);

protected:
	void _setEllipse(
		EPoint center,
		float radiusX,
		float radiusY
	);

	virtual ID2D1EllipseGeometry * _getD2dGeometry() const override;

protected:
	ID2D1EllipseGeometry * m_pD2dEllipse;
};

}