mirror of https://github.com/ZDoom/gzdoom-gles.git
101 lines
2.7 KiB
C++
101 lines
2.7 KiB
C++
//-----------------------------------------------------------------------------
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//
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// Copyright 1993-1996 id Software
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// Copyright 1999-2016 Randy Heit
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// Copyright 2002-2016 Christoph Oelckers
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see http://www.gnu.org/licenses/
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//
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//-----------------------------------------------------------------------------
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//
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// DESCRIPTION:
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// Nil.
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//
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//-----------------------------------------------------------------------------
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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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#include "m_fixed.h"
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struct line_t;
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struct node_t;
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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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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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bool inRange(const line_t *ld) const;
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int BoxOnLineSide (const line_t *ld) const;
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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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