80 lines
2.0 KiB
C++
80 lines
2.0 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: An axis aligned bounding box class.
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef BOUNDBOX_H
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#define BOUNDBOX_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "mathlib/vector.h"
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#define COORD_NOTINIT ((float)(99999.0))
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enum
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{
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AXIS_X = 0,
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AXIS_Y,
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AXIS_Z
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};
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class BoundBox
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{
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public:
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BoundBox(void);
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BoundBox(const Vector &mins, const Vector &maxs);
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void ResetBounds(void);
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inline void SetBounds(const Vector &mins, const Vector &maxs);
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void UpdateBounds(const Vector& bmins, const Vector& bmaxs);
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void UpdateBounds(const Vector& pt);
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void UpdateBounds(const BoundBox *pBox);
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void GetBoundsCenter(Vector& ptdest);
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inline void GetBounds(Vector& Mins, Vector& Maxs);
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virtual bool IsIntersectingBox(const Vector& pfMins, const Vector& pfMaxs) const;
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bool IsInsideBox(const Vector& pfMins, const Vector& pfMaxs) const;
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bool ContainsPoint(const Vector& pt) const;
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bool IsValidBox(void) const;
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void GetBoundsSize(Vector& size);
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void SnapToGrid(int iGridSize);
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void Rotate90(int axis);
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Vector bmins;
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Vector bmaxs;
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};
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//-----------------------------------------------------------------------------
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// Purpose: Gets the bounding box as two vectors, a min and a max.
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// Input : Mins - Receives the box's minima.
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// Maxs - Receives the box's maxima.
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//-----------------------------------------------------------------------------
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void BoundBox::GetBounds(Vector &Mins, Vector &Maxs)
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{
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Mins = bmins;
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Maxs = bmaxs;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Sets the box outright, equivalent to ResetBounds + UpdateBounds.
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// Input : mins - Minima to set.
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// maxs - Maxima to set.
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//-----------------------------------------------------------------------------
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void BoundBox::SetBounds(const Vector &mins, const Vector &maxs)
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{
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bmins = mins;
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bmaxs = maxs;
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}
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#endif // BOUNDBOX_H
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