68630d6782
This included half the game state and lots of unneeded parts of the software renderer. The two modules that are shared between softpoly and the classic software renderer have been moved to a neutral place.
87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
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#ifndef __M_BBOX_H__
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#define __M_BBOX_H__
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#include <float.h>
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#include "vectors.h"
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enum
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{
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BOXTOP,
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BOXBOTTOM,
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BOXLEFT,
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BOXRIGHT
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}; // bbox coordinates
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class FBoundingBox
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{
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public:
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FBoundingBox()
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{
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ClearBox();
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}
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FBoundingBox(double left, double bottom, double right, double top)
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{
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m_Box[BOXTOP] = top;
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m_Box[BOXLEFT] = left;
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m_Box[BOXRIGHT] = right;
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m_Box[BOXBOTTOM] = bottom;
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}
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FBoundingBox(double x, double y, double radius)
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{
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setBox(x, y, radius);
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}
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void setBox(double x, double y, double radius)
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{
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m_Box[BOXTOP] = y + radius;
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m_Box[BOXLEFT] = x - radius;
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m_Box[BOXRIGHT] = x + radius;
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m_Box[BOXBOTTOM] = y - radius;
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}
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void ClearBox ()
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{
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m_Box[BOXTOP] = m_Box[BOXRIGHT] = -FLT_MAX;
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m_Box[BOXBOTTOM] = m_Box[BOXLEFT] = FLT_MAX;
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}
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// Returns a bounding box that encloses both bounding boxes
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FBoundingBox operator | (const FBoundingBox &box2) const
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{
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return FBoundingBox(m_Box[BOXLEFT] < box2.m_Box[BOXLEFT] ? m_Box[BOXLEFT] : box2.m_Box[BOXLEFT],
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m_Box[BOXBOTTOM] < box2.m_Box[BOXBOTTOM] ? m_Box[BOXBOTTOM] : box2.m_Box[BOXBOTTOM],
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m_Box[BOXRIGHT] > box2.m_Box[BOXRIGHT] ? m_Box[BOXRIGHT] : box2.m_Box[BOXRIGHT],
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m_Box[BOXTOP] > box2.m_Box[BOXTOP] ? m_Box[BOXTOP] : box2.m_Box[BOXTOP]);
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}
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void AddToBox(const DVector2 &pos)
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{
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if (pos.X < m_Box[BOXLEFT])
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m_Box[BOXLEFT] = pos.X;
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if (pos.X > m_Box[BOXRIGHT])
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m_Box[BOXRIGHT] = pos.X;
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if (pos.Y < m_Box[BOXBOTTOM])
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m_Box[BOXBOTTOM] = pos.Y;
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if (pos.Y > m_Box[BOXTOP])
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m_Box[BOXTOP] = pos.Y;
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}
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inline double Top () const { return m_Box[BOXTOP]; }
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inline double Bottom () const { return m_Box[BOXBOTTOM]; }
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inline double Left () const { return m_Box[BOXLEFT]; }
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inline double Right () const { return m_Box[BOXRIGHT]; }
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void Set(int index, double value) {m_Box[index] = value;}
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protected:
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double m_Box[4];
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};
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#endif //__M_BBOX_H__
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