axmol/cocos2dx/cocoa/CCGeometry.cpp

/****************************************************************************
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#include "CCGeometry.h"
#include "ccMacros.h"

// implementation of CCPoint
NS_CC_BEGIN

CCPoint::CCPoint(void)
{
    setPoint(0.0f, 0.0f);
}

CCPoint::CCPoint(float x, float y)
{
    setPoint(x, y);
}

CCPoint::CCPoint(const CCPoint& other)
{
    setPoint(other.x, other.y);
}

CCPoint& CCPoint::operator= (const CCPoint& other)
{
    setPoint(other.x, other.y);
    return *this;
}

void CCPoint::setPoint(float x, float y)
{
    this->x = x;
    this->y = y;
}

CCObject* CCPoint::copyWithZone(CCZone* pZone)
{
    CCPoint* pRet = new CCPoint();
    pRet->setPoint(this->x, this->y);
    return pRet;
}

bool CCPoint::CCPointEqualToPoint(const CCPoint& point1, const CCPoint& point2)
{
    return ((point1.x == point2.x) && (point1.y == point2.y));
}

// implementation of CCSize

CCSize::CCSize(void)
{
    setSize(0.0f, 0.0f);
}

CCSize::CCSize(float width, float height)
{
    setSize(width, height);
}

CCSize::CCSize(const CCSize& other)
{
    setSize(other.width, other.height);
}

CCSize& CCSize::operator= (const CCSize& other)
{
    setSize(other.width, other.height);
    return *this;
}

void CCSize::setSize(float width, float height)
{
    this->width = width;
    this->height = height;
}

CCObject* CCSize::copyWithZone(CCZone* pZone)
{
    CCSize* pRet = new CCSize();
    pRet->setSize(this->width, this->width);
    return pRet;
}

bool CCSize::CCSizeEqualToSize(const CCSize& size1, const CCSize& size2)
{
    return ((size1.width == size2.width) && (size1.height == size2.height));
}

// implementation of CCRect

CCRect::CCRect(void)
{
    setRect(0.0f, 0.0f, 0.0f, 0.0f);
}

CCRect::CCRect(float x, float y, float width, float height)
{
    setRect(x, y, width, height);
}

CCRect::CCRect(const CCRect& other)
{
    setRect(other.origin.x, other.origin.y, other.size.width, other.size.height);
}

CCRect& CCRect::operator= (const CCRect& other)
{
    setRect(other.origin.x, other.origin.y, other.size.width, other.size.height);
    return *this;
}

void CCRect::setRect(float x, float y, float width, float height)
{
    // Only support that, the width and height > 0
    CCAssert(width >= 0.0f && height >= 0.0f, "width and height of Rect must not less than 0.");

    origin.x = x;
    origin.y = y;

    size.width = width;
    size.height = height;
}

CCObject* CCRect::copyWithZone(CCZone* pZone)
{
    CCRect* pRet = new CCRect();
    pRet->setRect(this->origin.x, this->origin.y, this->size.width, this->size.height);
    return pRet;
}

bool CCRect::CCRectEqualToRect(const CCRect& rect1, const CCRect& rect2)
{
    return (CCPoint::CCPointEqualToPoint(rect1.origin, rect2.origin)
        && CCSize::CCSizeEqualToSize(rect1.size, rect2.size));
}

CCFloat CCRect::CCRectGetMaxX(const CCRect& rect)
{
    return rect.origin.x + rect.size.width;
}

CCFloat CCRect::CCRectGetMidX(const CCRect& rect)
{
    return (float)(rect.origin.x + rect.size.width / 2.0);
}

CCFloat CCRect::CCRectGetMinX(const CCRect& rect)
{
    return rect.origin.x;
}

CCFloat CCRect::CCRectGetMaxY(const CCRect& rect)
{
    return rect.origin.y + rect.size.height;
}

CCFloat CCRect::CCRectGetMidY(const CCRect& rect)
{
    return (float)(rect.origin.y + rect.size.height / 2.0);
}

CCFloat CCRect::CCRectGetMinY(const CCRect& rect)
{
    return rect.origin.y;
}

bool CCRect::CCRectContainsPoint(const CCRect& rect, const CCPoint& point)
{
    bool bRet = false;

    if (point.x >= CCRectGetMinX(rect) && point.x <= CCRectGetMaxX(rect)
        && point.y >= CCRectGetMinY(rect) && point.y <= CCRectGetMaxY(rect))
    {
        bRet = true;
    }

    return bRet;
}

bool CCRect::CCRectIntersectsRect(const CCRect& rectA, const CCRect& rectB)
{
    return !(CCRectGetMaxX(rectA) < CCRectGetMinX(rectB)||
            CCRectGetMaxX(rectB) < CCRectGetMinX(rectA)||
            CCRectGetMaxY(rectA) < CCRectGetMinY(rectB)||
            CCRectGetMaxY(rectB) < CCRectGetMinY(rectA));
}

NS_CC_END