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736ec20d4d
Don't include the lazy precompiled.h everywhere, only what's required for the compilation unit. platform.h needs to be included instead to provide all essential defines and types. All includes use the relative path to the neo or the game specific root. Move all idlib related includes from idlib/Lib.h to precompiled.h. precompiled.h still exists for the MFC stuff in tools/. Add some missing header guards.
528 lines
25 KiB
C++
528 lines
25 KiB
C++
/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code 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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Doom 3 Source Code 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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You should have received a copy of the GNU General Public License
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along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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/*
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===============================================================================
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Trace model vs. polygonal model collision detection.
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===============================================================================
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*/
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#include "idlib/math/Pluecker.h"
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#include "cm/CollisionModel.h"
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#define MIN_NODE_SIZE 64.0f
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#define MAX_NODE_POLYGONS 128
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#define CM_MAX_POLYGON_EDGES 64
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#define CIRCLE_APPROXIMATION_LENGTH 64.0f
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#define MAX_SUBMODELS 2048
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#define TRACE_MODEL_HANDLE MAX_SUBMODELS
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#define VERTEX_HASH_BOXSIZE (1<<6) // must be power of 2
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#define VERTEX_HASH_SIZE (VERTEX_HASH_BOXSIZE*VERTEX_HASH_BOXSIZE)
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#define EDGE_HASH_SIZE (1<<14)
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#define NODE_BLOCK_SIZE_SMALL 8
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#define NODE_BLOCK_SIZE_LARGE 256
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#define REFERENCE_BLOCK_SIZE_SMALL 8
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#define REFERENCE_BLOCK_SIZE_LARGE 256
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#define MAX_WINDING_LIST 128 // quite a few are generated at times
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#define INTEGRAL_EPSILON 0.01f
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#define VERTEX_EPSILON 0.1f
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#define CHOP_EPSILON 0.1f
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typedef struct cm_windingList_s {
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int numWindings; // number of windings
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idFixedWinding w[MAX_WINDING_LIST]; // windings
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idVec3 normal; // normal for all windings
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idBounds bounds; // bounds of all windings in list
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idVec3 origin; // origin for radius
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float radius; // radius relative to origin for all windings
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int contents; // winding surface contents
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int primitiveNum; // number of primitive the windings came from
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} cm_windingList_t;
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/*
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===============================================================================
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Collision model
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===============================================================================
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*/
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typedef struct cm_vertex_s {
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idVec3 p; // vertex point
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int checkcount; // for multi-check avoidance
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unsigned long side; // each bit tells at which side this vertex passes one of the trace model edges
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unsigned long sideSet; // each bit tells if sidedness for the trace model edge has been calculated yet
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} cm_vertex_t;
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typedef struct cm_edge_s {
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int checkcount; // for multi-check avoidance
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unsigned short internal; // a trace model can never collide with internal edges
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unsigned short numUsers; // number of polygons using this edge
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unsigned long side; // each bit tells at which side of this edge one of the trace model vertices passes
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unsigned long sideSet; // each bit tells if sidedness for the trace model vertex has been calculated yet
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int vertexNum[2]; // start and end point of edge
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idVec3 normal; // edge normal
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} cm_edge_t;
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typedef struct cm_polygonBlock_s {
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int bytesRemaining;
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byte * next;
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} cm_polygonBlock_t;
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typedef struct cm_polygon_s {
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idBounds bounds; // polygon bounds
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int checkcount; // for multi-check avoidance
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int contents; // contents behind polygon
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const idMaterial * material; // material
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idPlane plane; // polygon plane
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int numEdges; // number of edges
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int edges[1]; // variable sized, indexes into cm_edge_t list
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} cm_polygon_t;
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typedef struct cm_polygonRef_s {
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cm_polygon_t * p; // pointer to polygon
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struct cm_polygonRef_s *next; // next polygon in chain
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} cm_polygonRef_t;
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typedef struct cm_polygonRefBlock_s {
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cm_polygonRef_t * nextRef; // next polygon reference in block
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struct cm_polygonRefBlock_s *next; // next block with polygon references
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} cm_polygonRefBlock_t;
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typedef struct cm_brushBlock_s {
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int bytesRemaining;
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byte * next;
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} cm_brushBlock_t;
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typedef struct cm_brush_s {
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int checkcount; // for multi-check avoidance
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idBounds bounds; // brush bounds
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int contents; // contents of brush
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const idMaterial * material; // material
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int primitiveNum; // number of brush primitive
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int numPlanes; // number of bounding planes
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idPlane planes[1]; // variable sized
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} cm_brush_t;
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typedef struct cm_brushRef_s {
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cm_brush_t * b; // pointer to brush
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struct cm_brushRef_s * next; // next brush in chain
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} cm_brushRef_t;
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typedef struct cm_brushRefBlock_s {
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cm_brushRef_t * nextRef; // next brush reference in block
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struct cm_brushRefBlock_s *next; // next block with brush references
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} cm_brushRefBlock_t;
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typedef struct cm_node_s {
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int planeType; // node axial plane type
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float planeDist; // node plane distance
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cm_polygonRef_t * polygons; // polygons in node
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cm_brushRef_t * brushes; // brushes in node
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struct cm_node_s * parent; // parent of this node
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struct cm_node_s * children[2]; // node children
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} cm_node_t;
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typedef struct cm_nodeBlock_s {
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cm_node_t * nextNode; // next node in block
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struct cm_nodeBlock_s *next; // next block with nodes
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} cm_nodeBlock_t;
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typedef struct cm_model_s {
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idStr name; // model name
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idBounds bounds; // model bounds
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int contents; // all contents of the model ored together
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bool isConvex; // set if model is convex
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// model geometry
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int maxVertices; // size of vertex array
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int numVertices; // number of vertices
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cm_vertex_t * vertices; // array with all vertices used by the model
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int maxEdges; // size of edge array
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int numEdges; // number of edges
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cm_edge_t * edges; // array with all edges used by the model
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cm_node_t * node; // first node of spatial subdivision
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// blocks with allocated memory
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cm_nodeBlock_t * nodeBlocks; // list with blocks of nodes
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cm_polygonRefBlock_t * polygonRefBlocks; // list with blocks of polygon references
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cm_brushRefBlock_t * brushRefBlocks; // list with blocks of brush references
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cm_polygonBlock_t * polygonBlock; // memory block with all polygons
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cm_brushBlock_t * brushBlock; // memory block with all brushes
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// statistics
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int numPolygons;
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int polygonMemory;
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int numBrushes;
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int brushMemory;
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int numNodes;
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int numBrushRefs;
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int numPolygonRefs;
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int numInternalEdges;
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int numSharpEdges;
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int numRemovedPolys;
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int numMergedPolys;
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int usedMemory;
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} cm_model_t;
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/*
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===============================================================================
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Data used during collision detection calculations
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===============================================================================
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*/
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typedef struct cm_trmVertex_s {
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int used; // true if this vertex is used for collision detection
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idVec3 p; // vertex position
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idVec3 endp; // end point of vertex after movement
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int polygonSide; // side of polygon this vertex is on (rotational collision)
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idPluecker pl; // pluecker coordinate for vertex movement
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idVec3 rotationOrigin; // rotation origin for this vertex
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idBounds rotationBounds; // rotation bounds for this vertex
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} cm_trmVertex_t;
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typedef struct cm_trmEdge_s {
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int used; // true when vertex is used for collision detection
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idVec3 start; // start of edge
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idVec3 end; // end of edge
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int vertexNum[2]; // indexes into cm_traceWork_t->vertices
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idPluecker pl; // pluecker coordinate for edge
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idVec3 cross; // (z,-y,x) of cross product between edge dir and movement dir
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idBounds rotationBounds; // rotation bounds for this edge
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idPluecker plzaxis; // pluecker coordinate for rotation about the z-axis
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unsigned short bitNum; // vertex bit number
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} cm_trmEdge_t;
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typedef struct cm_trmPolygon_s {
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int used;
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idPlane plane; // polygon plane
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int numEdges; // number of edges
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int edges[MAX_TRACEMODEL_POLYEDGES]; // index into cm_traceWork_t->edges
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idBounds rotationBounds; // rotation bounds for this polygon
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} cm_trmPolygon_t;
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typedef struct cm_traceWork_s {
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int numVerts;
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cm_trmVertex_t vertices[MAX_TRACEMODEL_VERTS]; // trm vertices
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int numEdges;
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cm_trmEdge_t edges[MAX_TRACEMODEL_EDGES+1]; // trm edges
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int numPolys;
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cm_trmPolygon_t polys[MAX_TRACEMODEL_POLYS]; // trm polygons
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cm_model_t *model; // model colliding with
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idVec3 start; // start of trace
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idVec3 end; // end of trace
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idVec3 dir; // trace direction
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idBounds bounds; // bounds of full trace
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idBounds size; // bounds of transformed trm relative to start
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idVec3 extents; // largest of abs(size[0]) and abs(size[1]) for BSP trace
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int contents; // ignore polygons that do not have any of these contents flags
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trace_t trace; // collision detection result
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bool rotation; // true if calculating rotational collision
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bool pointTrace; // true if only tracing a point
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bool positionTest; // true if not tracing but doing a position test
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bool isConvex; // true if the trace model is convex
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bool axisIntersectsTrm; // true if the rotation axis intersects the trace model
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bool getContacts; // true if retrieving contacts
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bool quickExit; // set to quickly stop the collision detection calculations
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idVec3 origin; // origin of rotation in model space
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idVec3 axis; // rotation axis in model space
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idMat3 matrix; // rotates axis of rotation to the z-axis
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float angle; // angle for rotational collision
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float maxTan; // max tangent of half the positive angle used instead of fraction
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float radius; // rotation radius of trm start
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idRotation modelVertexRotation; // inverse rotation for model vertices
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contactInfo_t *contacts; // array with contacts
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int maxContacts; // max size of contact array
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int numContacts; // number of contacts found
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idPlane heartPlane1; // polygons should be near anough the trace heart planes
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float maxDistFromHeartPlane1;
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idPlane heartPlane2;
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float maxDistFromHeartPlane2;
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idPluecker polygonEdgePlueckerCache[CM_MAX_POLYGON_EDGES];
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idPluecker polygonVertexPlueckerCache[CM_MAX_POLYGON_EDGES];
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idVec3 polygonRotationOriginCache[CM_MAX_POLYGON_EDGES];
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} cm_traceWork_t;
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/*
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===============================================================================
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Collision Map
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===============================================================================
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*/
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typedef struct cm_procNode_s {
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idPlane plane;
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int children[2]; // negative numbers are (-1 - areaNumber), 0 = solid
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} cm_procNode_t;
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class idCollisionModelManagerLocal : public idCollisionModelManager {
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public:
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// load collision models from a map file
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void LoadMap( const idMapFile *mapFile );
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// frees all the collision models
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void FreeMap( void );
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// get clip handle for model
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cmHandle_t LoadModel( const char *modelName, const bool precache );
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// sets up a trace model for collision with other trace models
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cmHandle_t SetupTrmModel( const idTraceModel &trm, const idMaterial *material );
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// create trace model from a collision model, returns true if succesfull
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bool TrmFromModel( const char *modelName, idTraceModel &trm );
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// name of the model
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const char * GetModelName( cmHandle_t model ) const;
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// bounds of the model
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bool GetModelBounds( cmHandle_t model, idBounds &bounds ) const;
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// all contents flags of brushes and polygons ored together
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bool GetModelContents( cmHandle_t model, int &contents ) const;
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// get the vertex of a model
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bool GetModelVertex( cmHandle_t model, int vertexNum, idVec3 &vertex ) const;
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// get the edge of a model
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bool GetModelEdge( cmHandle_t model, int edgeNum, idVec3 &start, idVec3 &end ) const;
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// get the polygon of a model
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bool GetModelPolygon( cmHandle_t model, int polygonNum, idFixedWinding &winding ) const;
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// translates a trm and reports the first collision if any
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void Translation( trace_t *results, const idVec3 &start, const idVec3 &end,
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const idTraceModel *trm, const idMat3 &trmAxis, int contentMask,
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cmHandle_t model, const idVec3 &modelOrigin, const idMat3 &modelAxis );
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// rotates a trm and reports the first collision if any
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void Rotation( trace_t *results, const idVec3 &start, const idRotation &rotation,
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const idTraceModel *trm, const idMat3 &trmAxis, int contentMask,
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cmHandle_t model, const idVec3 &modelOrigin, const idMat3 &modelAxis );
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// returns the contents the trm is stuck in or 0 if the trm is in free space
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int Contents( const idVec3 &start,
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const idTraceModel *trm, const idMat3 &trmAxis, int contentMask,
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cmHandle_t model, const idVec3 &modelOrigin, const idMat3 &modelAxis );
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// stores all contact points of the trm with the model, returns the number of contacts
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int Contacts( contactInfo_t *contacts, const int maxContacts, const idVec3 &start, const idVec6 &dir, const float depth,
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const idTraceModel *trm, const idMat3 &trmAxis, int contentMask,
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cmHandle_t model, const idVec3 &modelOrigin, const idMat3 &modelAxis );
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// test collision detection
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void DebugOutput( const idVec3 &origin );
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// draw a model
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void DrawModel( cmHandle_t model, const idVec3 &origin, const idMat3 &axis,
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const idVec3 &viewOrigin, const float radius );
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// print model information, use -1 handle for accumulated model info
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void ModelInfo( cmHandle_t model );
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// list all loaded models
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void ListModels( void );
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// write a collision model file for the map entity
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bool WriteCollisionModelForMapEntity( const idMapEntity *mapEnt, const char *filename, const bool testTraceModel = true );
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private: // CollisionMap_translate.cpp
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int TranslateEdgeThroughEdge( idVec3 &cross, idPluecker &l1, idPluecker &l2, float *fraction );
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void TranslateTrmEdgeThroughPolygon( cm_traceWork_t *tw, cm_polygon_t *poly, cm_trmEdge_t *trmEdge );
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void TranslateTrmVertexThroughPolygon( cm_traceWork_t *tw, cm_polygon_t *poly, cm_trmVertex_t *v, int bitNum );
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void TranslatePointThroughPolygon( cm_traceWork_t *tw, cm_polygon_t *poly, cm_trmVertex_t *v );
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void TranslateVertexThroughTrmPolygon( cm_traceWork_t *tw, cm_trmPolygon_t *trmpoly, cm_polygon_t *poly, cm_vertex_t *v, idVec3 &endp, idPluecker &pl );
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bool TranslateTrmThroughPolygon( cm_traceWork_t *tw, cm_polygon_t *p );
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void SetupTranslationHeartPlanes( cm_traceWork_t *tw );
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void SetupTrm( cm_traceWork_t *tw, const idTraceModel *trm );
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private: // CollisionMap_rotate.cpp
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int CollisionBetweenEdgeBounds( cm_traceWork_t *tw, const idVec3 &va, const idVec3 &vb,
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const idVec3 &vc, const idVec3 &vd, float tanHalfAngle,
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idVec3 &collisionPoint, idVec3 &collisionNormal );
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int RotateEdgeThroughEdge( cm_traceWork_t *tw, const idPluecker &pl1,
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const idVec3 &vc, const idVec3 &vd,
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const float minTan, float &tanHalfAngle );
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int EdgeFurthestFromEdge( cm_traceWork_t *tw, const idPluecker &pl1,
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const idVec3 &vc, const idVec3 &vd,
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float &tanHalfAngle, float &dir );
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void RotateTrmEdgeThroughPolygon( cm_traceWork_t *tw, cm_polygon_t *poly, cm_trmEdge_t *trmEdge );
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int RotatePointThroughPlane( const cm_traceWork_t *tw, const idVec3 &point, const idPlane &plane,
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const float angle, const float minTan, float &tanHalfAngle );
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int PointFurthestFromPlane( const cm_traceWork_t *tw, const idVec3 &point, const idPlane &plane,
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const float angle, float &tanHalfAngle, float &dir );
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int RotatePointThroughEpsilonPlane( const cm_traceWork_t *tw, const idVec3 &point, const idVec3 &endPoint,
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const idPlane &plane, const float angle, const idVec3 &origin,
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float &tanHalfAngle, idVec3 &collisionPoint, idVec3 &endDir );
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void RotateTrmVertexThroughPolygon( cm_traceWork_t *tw, cm_polygon_t *poly, cm_trmVertex_t *v, int vertexNum);
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void RotateVertexThroughTrmPolygon( cm_traceWork_t *tw, cm_trmPolygon_t *trmpoly, cm_polygon_t *poly,
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cm_vertex_t *v, idVec3 &rotationOrigin );
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bool RotateTrmThroughPolygon( cm_traceWork_t *tw, cm_polygon_t *p );
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void BoundsForRotation( const idVec3 &origin, const idVec3 &axis, const idVec3 &start, const idVec3 &end, idBounds &bounds );
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void Rotation180( trace_t *results, const idVec3 &rorg, const idVec3 &axis,
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const float startAngle, const float endAngle, const idVec3 &start,
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const idTraceModel *trm, const idMat3 &trmAxis, int contentMask,
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cmHandle_t model, const idVec3 &origin, const idMat3 &modelAxis );
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private: // CollisionMap_contents.cpp
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bool TestTrmVertsInBrush( cm_traceWork_t *tw, cm_brush_t *b );
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bool TestTrmInPolygon( cm_traceWork_t *tw, cm_polygon_t *p );
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cm_node_t * PointNode( const idVec3 &p, cm_model_t *model );
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int PointContents( const idVec3 p, cmHandle_t model );
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int TransformedPointContents( const idVec3 &p, cmHandle_t model, const idVec3 &origin, const idMat3 &modelAxis );
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int ContentsTrm( trace_t *results, const idVec3 &start,
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const idTraceModel *trm, const idMat3 &trmAxis, int contentMask,
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cmHandle_t model, const idVec3 &modelOrigin, const idMat3 &modelAxis );
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private: // CollisionMap_trace.cpp
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void TraceTrmThroughNode( cm_traceWork_t *tw, cm_node_t *node );
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void TraceThroughAxialBSPTree_r( cm_traceWork_t *tw, cm_node_t *node, float p1f, float p2f, idVec3 &p1, idVec3 &p2);
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void TraceThroughModel( cm_traceWork_t *tw );
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void RecurseProcBSP_r( trace_t *results, int parentNodeNum, int nodeNum, float p1f, float p2f, const idVec3 &p1, const idVec3 &p2 );
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private: // CollisionMap_load.cpp
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void Clear( void );
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void FreeTrmModelStructure( void );
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// model deallocation
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void RemovePolygonReferences_r( cm_node_t *node, cm_polygon_t *p );
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void RemoveBrushReferences_r( cm_node_t *node, cm_brush_t *b );
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void FreeNode( cm_node_t *node );
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void FreePolygonReference( cm_polygonRef_t *pref );
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void FreeBrushReference( cm_brushRef_t *bref );
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void FreePolygon( cm_model_t *model, cm_polygon_t *poly );
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void FreeBrush( cm_model_t *model, cm_brush_t *brush );
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void FreeTree_r( cm_model_t *model, cm_node_t *headNode, cm_node_t *node );
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void FreeModel( cm_model_t *model );
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// merging polygons
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void ReplacePolygons( cm_model_t *model, cm_node_t *node, cm_polygon_t *p1, cm_polygon_t *p2, cm_polygon_t *newp );
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cm_polygon_t * TryMergePolygons( cm_model_t *model, cm_polygon_t *p1, cm_polygon_t *p2 );
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bool MergePolygonWithTreePolygons( cm_model_t *model, cm_node_t *node, cm_polygon_t *polygon );
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void MergeTreePolygons( cm_model_t *model, cm_node_t *node );
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// finding internal edges
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bool PointInsidePolygon( cm_model_t *model, cm_polygon_t *p, idVec3 &v );
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void FindInternalEdgesOnPolygon( cm_model_t *model, cm_polygon_t *p1, cm_polygon_t *p2 );
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void FindInternalPolygonEdges( cm_model_t *model, cm_node_t *node, cm_polygon_t *polygon );
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void FindInternalEdges( cm_model_t *model, cm_node_t *node );
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void FindContainedEdges( cm_model_t *model, cm_polygon_t *p );
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// loading of proc BSP tree
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void ParseProcNodes( idLexer *src );
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void LoadProcBSP( const char *name );
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// removal of contained polygons
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int R_ChoppedAwayByProcBSP( int nodeNum, idFixedWinding *w, const idVec3 &normal, const idVec3 &origin, const float radius );
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int ChoppedAwayByProcBSP( const idFixedWinding &w, const idPlane &plane, int contents );
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void ChopWindingListWithBrush( cm_windingList_t *list, cm_brush_t *b );
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void R_ChopWindingListWithTreeBrushes( cm_windingList_t *list, cm_node_t *node );
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idFixedWinding *WindingOutsideBrushes( idFixedWinding *w, const idPlane &plane, int contents, int patch, cm_node_t *headNode );
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// creation of axial BSP tree
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cm_model_t * AllocModel( void );
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cm_node_t * AllocNode( cm_model_t *model, int blockSize );
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cm_polygonRef_t*AllocPolygonReference( cm_model_t *model, int blockSize );
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cm_brushRef_t * AllocBrushReference( cm_model_t *model, int blockSize );
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cm_polygon_t * AllocPolygon( cm_model_t *model, int numEdges );
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cm_brush_t * AllocBrush( cm_model_t *model, int numPlanes );
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void AddPolygonToNode( cm_model_t *model, cm_node_t *node, cm_polygon_t *p );
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void AddBrushToNode( cm_model_t *model, cm_node_t *node, cm_brush_t *b );
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void SetupTrmModelStructure( void );
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void R_FilterPolygonIntoTree( cm_model_t *model, cm_node_t *node, cm_polygonRef_t *pref, cm_polygon_t *p );
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void R_FilterBrushIntoTree( cm_model_t *model, cm_node_t *node, cm_brushRef_t *pref, cm_brush_t *b );
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cm_node_t * R_CreateAxialBSPTree( cm_model_t *model, cm_node_t *node, const idBounds &bounds );
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cm_node_t * CreateAxialBSPTree( cm_model_t *model, cm_node_t *node );
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// creation of raw polygons
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void SetupHash(void);
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void ShutdownHash(void);
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void ClearHash( idBounds &bounds );
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int HashVec(const idVec3 &vec);
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int GetVertex( cm_model_t *model, const idVec3 &v, int *vertexNum );
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int GetEdge( cm_model_t *model, const idVec3 &v1, const idVec3 &v2, int *edgeNum, int v1num );
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void CreatePolygon( cm_model_t *model, idFixedWinding *w, const idPlane &plane, const idMaterial *material, int primitiveNum );
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void PolygonFromWinding( cm_model_t *model, idFixedWinding *w, const idPlane &plane, const idMaterial *material, int primitiveNum );
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void CalculateEdgeNormals( cm_model_t *model, cm_node_t *node );
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void CreatePatchPolygons( cm_model_t *model, idSurface_Patch &mesh, const idMaterial *material, int primitiveNum );
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void ConvertPatch( cm_model_t *model, const idMapPatch *patch, int primitiveNum );
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void ConvertBrushSides( cm_model_t *model, const idMapBrush *mapBrush, int primitiveNum );
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void ConvertBrush( cm_model_t *model, const idMapBrush *mapBrush, int primitiveNum );
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void PrintModelInfo( const cm_model_t *model );
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void AccumulateModelInfo( cm_model_t *model );
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void RemapEdges( cm_node_t *node, int *edgeRemap );
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void OptimizeArrays( cm_model_t *model );
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void FinishModel( cm_model_t *model );
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void BuildModels( const idMapFile *mapFile );
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cmHandle_t FindModel( const char *name );
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cm_model_t * CollisionModelForMapEntity( const idMapEntity *mapEnt ); // brush/patch model from .map
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cm_model_t * LoadRenderModel( const char *fileName ); // ASE/LWO models
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bool TrmFromModel_r( idTraceModel &trm, cm_node_t *node );
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bool TrmFromModel( const cm_model_t *model, idTraceModel &trm );
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private: // CollisionMap_files.cpp
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// writing
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void WriteNodes( idFile *fp, cm_node_t *node );
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int CountPolygonMemory( cm_node_t *node ) const;
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void WritePolygons( idFile *fp, cm_node_t *node );
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int CountBrushMemory( cm_node_t *node ) const;
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void WriteBrushes( idFile *fp, cm_node_t *node );
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void WriteCollisionModel( idFile *fp, cm_model_t *model );
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void WriteCollisionModelsToFile( const char *filename, int firstModel, int lastModel, unsigned int mapFileCRC );
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// loading
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cm_node_t * ParseNodes( idLexer *src, cm_model_t *model, cm_node_t *parent );
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void ParseVertices( idLexer *src, cm_model_t *model );
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void ParseEdges( idLexer *src, cm_model_t *model );
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void ParsePolygons( idLexer *src, cm_model_t *model );
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void ParseBrushes( idLexer *src, cm_model_t *model );
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bool ParseCollisionModel( idLexer *src );
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bool LoadCollisionModelFile( const char *name, unsigned int mapFileCRC );
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private: // CollisionMap_debug
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int ContentsFromString( const char *string ) const;
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const char * StringFromContents( const int contents ) const;
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void DrawEdge( cm_model_t *model, int edgeNum, const idVec3 &origin, const idMat3 &axis );
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void DrawPolygon( cm_model_t *model, cm_polygon_t *p, const idVec3 &origin, const idMat3 &axis,
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const idVec3 &viewOrigin );
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void DrawNodePolygons( cm_model_t *model, cm_node_t *node, const idVec3 &origin, const idMat3 &axis,
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const idVec3 &viewOrigin, const float radius );
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private: // collision map data
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idStr mapName;
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ID_TIME_T mapFileTime;
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int loaded;
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// for multi-check avoidance
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int checkCount;
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// models
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int maxModels;
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int numModels;
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cm_model_t ** models;
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// polygons and brush for trm model
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cm_polygonRef_t*trmPolygons[MAX_TRACEMODEL_POLYS];
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cm_brushRef_t * trmBrushes[1];
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const idMaterial *trmMaterial;
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// for data pruning
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int numProcNodes;
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cm_procNode_t * procNodes;
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// for retrieving contact points
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bool getContacts;
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contactInfo_t * contacts;
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int maxContacts;
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int numContacts;
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};
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// for debugging
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extern idCVar cm_debugCollision;
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