janwas
0bb0df5b2c
- remove headers always included from PCH - nommgr.h is only included ifdef REDEFINED_NEW (allows leaving out the mmgr stuff) - in lib/*.cpp, moved the corresponding include file to right behind the PCH (catches headers that aren't compilable by themselves) - byte_order no longer depends on SDL - add debug_level (another means of filtering debug output; needed for thesis) - split posix stuff up into subdirs (lib/posix and sysdep/win/wposix). makes including only some of the modules (e.g. sockets, time) much easier. This was SVN commit r4728.
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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//
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// Name: HFTracer.h
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// Author: Rich Cross
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// Contact: rich@wildfiregames.com
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _HFTRACER_H
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#define _HFTRACER_H
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class CVector3D;
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class CTerrain;
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///////////////////////////////////////////////////////////////////////////////
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// CHFTracer: a class for determining ray intersections with a heightfield
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class CHFTracer
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{
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public:
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// constructor; setup data
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CHFTracer(CTerrain *pTerrain);
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// intersect ray with this heightfield; return true if intersection
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// occurs (and fill in grid coordinates and point of intersection), or false otherwise
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bool RayIntersect(CVector3D& origin,CVector3D& dir,int& x,int& z,CVector3D& ipt) const;
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private:
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// intersect a ray with triangle defined by vertices
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// v0,v1,v2; return true if ray hits triangle at distance less than dist,
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// or false otherwise
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bool RayTriIntersect(const CVector3D& v0,const CVector3D& v1,const CVector3D& v2,
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const CVector3D& origin,const CVector3D& dir,float& dist) const;
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// test if ray intersects either of the triangles in the given
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bool CellIntersect(int cx,int cz,CVector3D& origin,CVector3D& dir,float& dist) const;
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// The terrain we're operating on
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CTerrain *m_pTerrain;
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// the heightfield were tracing
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const u16* m_Heightfield;
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// size of the heightfield
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u32 m_MapSize;
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// cell size - size of each cell in x and z
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float m_CellSize;
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// vertical scale - size of each cell in y
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float m_HeightScale;
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};
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#endif
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