forked from a1batross/Paranoia2_original
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
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/*
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trace.h - trace triangle meshes
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Copyright (C) 2012 Uncle Mike
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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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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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#ifndef TRACEMESH_H
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#define TRACEMESH_H
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#include "vector.h"
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#include "meshdesc.h"
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#define FRAC_EPSILON (1.0f / 32.0f)
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#define BARY_EPSILON 0.01f
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#define ASLF_EPSILON 0.0001f
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#define COPLANAR_EPSILON 0.25f
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class TraceMesh
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{
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private:
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Vector m_vecSrcStart, m_vecSrcEnd;
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Vector m_vecAbsMins, m_vecAbsMaxs;
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Vector m_vecStart, m_vecEnd;
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vec3_t m_vecTraceDirection;// ray direction
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Vector m_vecOffsets[8]; // for fast signbits tests
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float m_flSphereRadius; // capsule
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Vector m_flSphereOffset;
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float m_flTraceDistance;
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float m_flRealFraction;
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bool m_bHitTriangle; // now we hit triangle
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bool bIsTestPosition;
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bool bIsTraceLine; // more accurate than ClipBoxToFacet
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bool bUseCapsule; // use capsule instead of bbox
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areanode_t *areanodes; // AABB for static meshes
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mmesh_t *mesh; // mesh to trace
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trace_t *trace; // output
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mstudiomaterial_t *material; // pointer to texture for special effects
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int checkcount; // debug
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Vector m_vecOrigin;
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Vector m_vecAngles;
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Vector m_vecScale;
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int m_iSkin;
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int m_iBody;
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matrix4x4 m_transform;
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model_t *m_pModel;
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public:
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TraceMesh() { mesh = NULL; }
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~TraceMesh() {}
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// trace stuff
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void SetTraceMesh( mmesh_t *cached_mesh, areanode_t *tree, int modelindex );
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void SetMeshOrientation( const Vector &pos, const Vector &ang, const Vector &xform )
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{
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m_vecOrigin = pos, m_vecAngles = ang, m_vecScale = xform;
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m_iBody = m_iSkin = 0; // reset it
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}
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void SetMeshParams( int body, int skin )
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{
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m_iBody = body;
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m_iSkin = skin;
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}
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void SetupTrace( const Vector &start, const Vector &mins, const Vector &maxs, const Vector &end, trace_t *trace );
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mstudiomaterial_t *GetLastHitSurface( void ) { return material; }
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mstudiomaterial_t *GetMaterialForFacet( const mfacet_t *facet );
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mstudiotexture_t *GetTextureForFacet( const mfacet_t *facet );
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bool ClipRayToFacet( const mfacet_t *facet );
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void ClipBoxToFacet( mfacet_t *facet );
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void TestBoxInFacet( mfacet_t *facet );
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bool IsTrans( const mfacet_t *facet );
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void ClipToLinks( areanode_t *node );
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bool DoTrace( void );
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};
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#endif//TRACEMESH_H
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