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/*
* Rect.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "Point.h"
VCMI_LIB_NAMESPACE_BEGIN
/// Rectangle class, which have a position and a size
class Rect
{
public:
int x;
int y;
int w;
int h;
Rect()
{
x = y = w = h = -1;
}
Rect(int X, int Y, int W, int H)
{
x = X;
y = Y;
w = W;
h = H;
}
Rect(const Point & position, const Point & size)
{
x = position.x;
y = position.y;
w = size.x;
h = size.y;
}
Rect(const Rect& r) = default;
DLL_LINKAGE static Rect createCentered( const Point & around, const Point & size );
DLL_LINKAGE static Rect createCentered( const Rect & target, const Point & size );
DLL_LINKAGE static Rect createAround(const Rect &r, int borderWidth);
bool isInside(int qx, int qy) const
{
if (qx > x && qx<x+w && qy>y && qy<y+h)
return true;
return false;
}
bool isInside(const Point & q) const
{
return isInside(q.x,q.y);
}
int top() const
{
return y;
}
int bottom() const
{
return y+h;
}
int left() const
{
return x;
}
int right() const
{
return x+w;
}
Point topLeft() const
{
return Point(x,y);
}
Point topRight() const
{
return Point(x+w,y);
}
Point bottomLeft() const
{
return Point(x,y+h);
}
Point bottomRight() const
{
return Point(x+w,y+h);
}
Point center() const
{
return Point(x+w/2,y+h/2);
}
Point dimensions() const
{
return Point(w,h);
}
Rect resize(const int size) const
{
return Rect(x-size,y-size,w+2*size,h+2*size);
}
void moveTo(const Point & dest)
{
x = dest.x;
y = dest.y;
}
Rect operator+(const Point &p) const
{
return Rect(x+p.x,y+p.y,w,h);
}
Rect operator-(const Point &p) const
{
return Rect(x-p.x,y-p.y,w,h);
}
template<typename T>
Rect operator*(const T &mul) const
{
return Rect(x*mul, y*mul, w*mul, h*mul);
}
Rect& operator=(const Rect &p)
{
x = p.x;
y = p.y;
w = p.w;
h = p.h;
return *this;
}
Rect& operator+=(const Point &p)
{
x += p.x;
y += p.y;
return *this;
}
Rect& operator-=(const Point &p)
{
x -= p.x;
y -= p.y;
return *this;
}
bool operator == (const Rect & other)
{
return x == other.x && y == other.y && w == other.w && h == other.h;
}
/// returns distance from this rect to point, or 0 if inside
DLL_LINKAGE int distanceTo(const Point & target) const;
/// returns true if this rect intersects with another rect
DLL_LINKAGE bool intersectionTest(const Rect & other) const;
/// returns true if this rect intersects with line specified by two points
DLL_LINKAGE bool intersectionTest(const Point & line1, const Point & line2) const;
/// Returns rect that represents intersection of two rects
DLL_LINKAGE Rect intersect(const Rect & other) const;
/// Returns rect union - rect that covers both this rect and provided rect
DLL_LINKAGE Rect include(const Rect & other) const;
template <typename Handler>
void serialize(Handler &h)
{
h & x;
h & y;
h & w;
h & this->h;
}
};
VCMI_LIB_NAMESPACE_END
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