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85 lines
2.3 KiB
C++
85 lines
2.3 KiB
C++
// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// $Id:$
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source 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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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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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 "doomtype.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(fixed_t left, fixed_t bottom, fixed_t right, fixed_t 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(fixed_t x, fixed_t y, fixed_t 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] = FIXED_MIN;
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m_Box[BOXBOTTOM] = m_Box[BOXLEFT] = FIXED_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 (fixed_t x, fixed_t y);
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inline fixed_t Top () const { return m_Box[BOXTOP]; }
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inline fixed_t Bottom () const { return m_Box[BOXBOTTOM]; }
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inline fixed_t Left () const { return m_Box[BOXLEFT]; }
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inline fixed_t Right () const { return m_Box[BOXRIGHT]; }
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int BoxOnLineSide (const line_t *ld) const;
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void Set(int index, fixed_t value) {m_Box[index] = value;}
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protected:
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fixed_t m_Box[4];
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};
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#endif //__M_BBOX_H__
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