axmol/cocos/math/CCGeometry.h

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Copyright (c) 2013-2014 Chukong Technologies

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#ifndef __MATH_CCGEOMETRY_H__
#define __MATH_CCGEOMETRY_H__

#include <math.h>

#include "platform/CCPlatformMacros.h"
#include "base/ccMacros.h"
#include "math/CCMath.h"

NS_CC_BEGIN

/**
 * @addtogroup data_structures
 * @{
 */

class CC_DLL Size
{
public:
    /**Width of the Size.*/
    float width;
    /**Height of the Size.*/
    float height;
public:
    /**Conversion from Vec2 to Size.*/
    operator Vec2() const
    {
        return Vec2(width, height);
    }

public:
    /**
    @{
    Constructor.
    @param width Width of the size.
    @param height Height of the size.
    @param other Copy constructor.
    @param point Conversion from a point.
     */
    Size();
    Size(float width, float height);
    Size(const Size& other);
    explicit Size(const Vec2& point);
    /**@}*/

    /**
     * @js NA
     * @lua NA
     */
    Size& operator= (const Size& other);
    /**
     * @js NA
     * @lua NA
     */
    Size& operator= (const Vec2& point);
    /**
     * @js NA
     * @lua NA
     */
    Size operator+(const Size& right) const;
    /**
     * @js NA
     * @lua NA
     */
    Size operator-(const Size& right) const;
    /**
     * @js NA
     * @lua NA
     */
    Size operator*(float a) const;
    /**
     * @js NA
     * @lua NA
     */
    Size operator/(float a) const;
    /**
    Set the width and height of Size.
     * @js NA
     * @lua NA
     */
    void setSize(float width, float height);
    /**
    Check if two size is the same.
     * @js NA
     */
    bool equals(const Size& target) const;
    /**Size(0,0).*/
    static const Size ZERO;
};

/**Rectangle area.*/
class CC_DLL Rect
{
public:
    /**Low left point of rect.*/
    Vec2 origin;
    /**Width and height of the rect.*/
    Size  size;

public:
    /**
    Constructor an empty Rect.
     * @js NA
     */
    Rect();
    /**
    Constructor a rect.
     * @js NA
     */
    Rect(float x, float y, float width, float height);
    /**
    Copy constructor.
     * @js NA
     * @lua NA
     */
    Rect(const Rect& other);
    /**
     * @js NA
     * @lua NA
     */
    Rect& operator= (const Rect& other);
    /**
    Set the x, y, width and height of Rect.
     * @js NA
     * @lua NA
     */
    void setRect(float x, float y, float width, float height);
    /**
    Get the left of the rect.
     * @js NA
     */
    float getMinX() const; /// return the leftmost x-value of current rect
    /**
    Get the X coordinate of center point.
     * @js NA
     */
    float getMidX() const; /// return the midpoint x-value of current rect
    /**
    Get the right of rect.
     * @js NA
     */
    float getMaxX() const; /// return the rightmost x-value of current rect
    /**
    Get the bottom of rect.
     * @js NA
     */
    float getMinY() const; /// return the bottommost y-value of current rect
    /**
    Get the Y coordinate of center point.
     * @js NA
     */
    float getMidY() const; /// return the midpoint y-value of current rect
    /**
    Get top of rect.
     * @js NA
     */
    float getMaxY() const; /// return the topmost y-value of current rect
    /**
    Compare two rects.
     * @js NA
     */
    bool equals(const Rect& rect) const;
    /**
    Check if the points is contained in the rect.
     * @js NA
     */
    bool containsPoint(const Vec2& point) const;
    /**
    Check the intersect status of two rects.
     * @js NA
     */
    bool intersectsRect(const Rect& rect) const;
    /**
    Get the min rect which can contain this and rect.
     * @js NA
     * @lua NA
     */
    Rect unionWithRect(const Rect & rect) const;
    /**Compute the min rect which can contain this and rect, assign it to this.*/
    void merge(const Rect& rect);
    /**An empty Rect.*/
    static const Rect ZERO;
};

// end of data_structure group
/// @}

NS_CC_END

#endif // __MATH_CCGEOMETRY_H__