axmol/cocos2dx/cocoa/CGGeometry.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

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#include "CGGeometry.h"

// implementation of CGPoint
namespace   cocos2d {

CGPoint::CGPoint(void)
{
	x = 0;
	y = 0;
}

CGPoint::CGPoint(float x, float y)
{
	this->x = x;
	this->y = y;
}

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

// implementation of CGSize

CGSize::CGSize(void)
{
	width = 0;
	height = 0;
}

CGSize::CGSize(float width, float height)
{
	this->width = width;
	this->height = height;
}

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

// implementation of CGRect

CGRect::CGRect(void)
{
	origin.x = 0;
	origin.y = 0;

	size.width = 0;
	size.height = 0;
}

CGRect::CGRect(float x, float y, float width, float height)
{
	origin.x = x;
	origin.y = y;

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

bool CGRect::CGRectEqualToRect(const CGRect& rect1, const CGRect& rect2)
{
	return (CGPoint::CGPointEqualToPoint(rect1.origin, rect2.origin)
		&& CGSize::CGSizeEqualToSize(rect1.size, rect2.size));
}

CGFloat CGRect::CGRectGetMaxX(const CGRect& rect)
{
	return rect.origin.x + rect.size.width;
}

CGFloat CGRect::CGRectGetMidX(const CGRect& rect)
{
	return (float)(rect.origin.x + rect.size.width / 2.0);
}

CGFloat CGRect::CGRectGetMinX(const CGRect& rect)
{
	return rect.origin.x;
}

CGFloat CGRect::CGRectGetMaxY(const CGRect& rect)
{
	return rect.origin.y + rect.size.height;
}

CGFloat CGRect::CGRectGetMidY(const CGRect& rect)
{
	return (float)(rect.origin.y + rect.size.height / 2.0);
}

CGFloat CGRect::CGRectGetMinY(const CGRect& rect)
{
	return rect.origin.y;
}

bool CGRect::CGRectContainsPoint(const CGRect& rect, const CGPoint& point)
{
    bool bRet = false;

	if (point.x >= CGRectGetMinX(rect) && point.x <= CGRectGetMaxX(rect)
		&& point.y >= CGRectGetMinY(rect) && point.y <= CGRectGetMaxY(rect))
	{
		bRet = true;
	}

	return bRet;
}

bool CGRect::CGRectIntersectsRect(const CGRect& rectA, const CGRect& rectB)
{
	return !(CGRectGetMaxX(rectA) < CGRectGetMinX(rectB)||
			CGRectGetMaxX(rectB) < CGRectGetMinX(rectA)||
			CGRectGetMaxY(rectA) < CGRectGetMinY(rectB)||
			CGRectGetMaxY(rectB) < CGRectGetMinY(rectB));
}

}//namespace   cocos2d {