mirror of
https://github.com/ZDoom/Raze.git
synced 2024-11-27 06:22:13 +00:00
87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
|
|
#ifndef __M_BBOX_H__
|
|
#define __M_BBOX_H__
|
|
|
|
#include <float.h>
|
|
#include "vectors.h"
|
|
|
|
enum
|
|
{
|
|
BOXTOP,
|
|
BOXBOTTOM,
|
|
BOXLEFT,
|
|
BOXRIGHT
|
|
}; // bbox coordinates
|
|
|
|
|
|
class FBoundingBox
|
|
{
|
|
public:
|
|
FBoundingBox()
|
|
{
|
|
ClearBox();
|
|
}
|
|
|
|
FBoundingBox(double left, double bottom, double right, double top)
|
|
{
|
|
m_Box[BOXTOP] = top;
|
|
m_Box[BOXLEFT] = left;
|
|
m_Box[BOXRIGHT] = right;
|
|
m_Box[BOXBOTTOM] = bottom;
|
|
}
|
|
|
|
FBoundingBox(double x, double y, double radius)
|
|
{
|
|
setBox(x, y, radius);
|
|
}
|
|
|
|
|
|
void setBox(double x, double y, double radius)
|
|
{
|
|
m_Box[BOXTOP] = y + radius;
|
|
m_Box[BOXLEFT] = x - radius;
|
|
m_Box[BOXRIGHT] = x + radius;
|
|
m_Box[BOXBOTTOM] = y - radius;
|
|
}
|
|
|
|
void ClearBox ()
|
|
{
|
|
m_Box[BOXTOP] = m_Box[BOXRIGHT] = -FLT_MAX;
|
|
m_Box[BOXBOTTOM] = m_Box[BOXLEFT] = FLT_MAX;
|
|
}
|
|
|
|
// Returns a bounding box that encloses both bounding boxes
|
|
FBoundingBox operator | (const FBoundingBox &box2) const
|
|
{
|
|
return FBoundingBox(m_Box[BOXLEFT] < box2.m_Box[BOXLEFT] ? m_Box[BOXLEFT] : box2.m_Box[BOXLEFT],
|
|
m_Box[BOXBOTTOM] < box2.m_Box[BOXBOTTOM] ? m_Box[BOXBOTTOM] : box2.m_Box[BOXBOTTOM],
|
|
m_Box[BOXRIGHT] > box2.m_Box[BOXRIGHT] ? m_Box[BOXRIGHT] : box2.m_Box[BOXRIGHT],
|
|
m_Box[BOXTOP] > box2.m_Box[BOXTOP] ? m_Box[BOXTOP] : box2.m_Box[BOXTOP]);
|
|
}
|
|
|
|
void AddToBox(const DVector2 &pos)
|
|
{
|
|
if (pos.X < m_Box[BOXLEFT])
|
|
m_Box[BOXLEFT] = pos.X;
|
|
if (pos.X > m_Box[BOXRIGHT])
|
|
m_Box[BOXRIGHT] = pos.X;
|
|
|
|
if (pos.Y < m_Box[BOXBOTTOM])
|
|
m_Box[BOXBOTTOM] = pos.Y;
|
|
if (pos.Y > m_Box[BOXTOP])
|
|
m_Box[BOXTOP] = pos.Y;
|
|
}
|
|
|
|
inline double Top () const { return m_Box[BOXTOP]; }
|
|
inline double Bottom () const { return m_Box[BOXBOTTOM]; }
|
|
inline double Left () const { return m_Box[BOXLEFT]; }
|
|
inline double Right () const { return m_Box[BOXRIGHT]; }
|
|
|
|
void Set(int index, double value) {m_Box[index] = value;}
|
|
|
|
protected:
|
|
double m_Box[4];
|
|
};
|
|
|
|
|
|
#endif //__M_BBOX_H__
|