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doom3-bfg/neo/cm/CollisionModel_debug.cpp
Brian Harris 5016f605b8 Initial commit
2012-11-26 12:58:24 -06:00

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/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition 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 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
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.
===========================================================================
*/
/*
===============================================================================
Trace model vs. polygonal model collision detection.
===============================================================================
*/
#pragma hdrstop
#include "../idlib/precompiled.h"
#include "CollisionModel_local.h"
/*
===============================================================================
Visualisation code
===============================================================================
*/
const char *cm_contentsNameByIndex[] = {
"none", // 0
"solid", // 1
"opaque", // 2
"water", // 3
"playerclip", // 4
"monsterclip", // 5
"moveableclip", // 6
"ikclip", // 7
"blood", // 8
"body", // 9
"corpse", // 10
"trigger", // 11
"aas_solid", // 12
"aas_obstacle", // 13
"flashlight_trigger", // 14
NULL
};
int cm_contentsFlagByIndex[] = {
-1, // 0
CONTENTS_SOLID, // 1
CONTENTS_OPAQUE, // 2
CONTENTS_WATER, // 3
CONTENTS_PLAYERCLIP, // 4
CONTENTS_MONSTERCLIP, // 5
CONTENTS_MOVEABLECLIP, // 6
CONTENTS_IKCLIP, // 7
CONTENTS_BLOOD, // 8
CONTENTS_BODY, // 9
CONTENTS_CORPSE, // 10
CONTENTS_TRIGGER, // 11
CONTENTS_AAS_SOLID, // 12
CONTENTS_AAS_OBSTACLE, // 13
CONTENTS_FLASHLIGHT_TRIGGER, // 14
0
};
idCVar cm_drawMask( "cm_drawMask", "none", CVAR_GAME, "collision mask", cm_contentsNameByIndex, idCmdSystem::ArgCompletion_String<cm_contentsNameByIndex> );
idCVar cm_drawColor( "cm_drawColor", "1 0 0 .5", CVAR_GAME, "color used to draw the collision models" );
idCVar cm_drawFilled( "cm_drawFilled", "0", CVAR_GAME | CVAR_BOOL, "draw filled polygons" );
idCVar cm_drawInternal( "cm_drawInternal", "1", CVAR_GAME | CVAR_BOOL, "draw internal edges green" );
idCVar cm_drawNormals( "cm_drawNormals", "0", CVAR_GAME | CVAR_BOOL, "draw polygon and edge normals" );
idCVar cm_backFaceCull( "cm_backFaceCull", "0", CVAR_GAME | CVAR_BOOL, "cull back facing polygons" );
idCVar cm_debugCollision( "cm_debugCollision", "0", CVAR_GAME | CVAR_BOOL, "debug the collision detection" );
static idVec4 cm_color;
/*
================
idCollisionModelManagerLocal::ContentsFromString
================
*/
int idCollisionModelManagerLocal::ContentsFromString( const char *string ) const {
int i, contents = 0;
idLexer src( string, idStr::Length( string ), "ContentsFromString" );
idToken token;
while( src.ReadToken( &token ) ) {
if ( token == "," ) {
continue;
}
for ( i = 1; cm_contentsNameByIndex[i] != NULL; i++ ) {
if ( token.Icmp( cm_contentsNameByIndex[i] ) == 0 ) {
contents |= cm_contentsFlagByIndex[i];
break;
}
}
}
return contents;
}
/*
================
idCollisionModelManagerLocal::StringFromContents
================
*/
const char *idCollisionModelManagerLocal::StringFromContents( const int contents ) const {
int i, length = 0;
static char contentsString[MAX_STRING_CHARS];
contentsString[0] = '\0';
for ( i = 1; cm_contentsFlagByIndex[i] != 0; i++ ) {
if ( contents & cm_contentsFlagByIndex[i] ) {
if ( length != 0 ) {
length += idStr::snPrintf( contentsString + length, sizeof( contentsString ) - length, "," );
}
length += idStr::snPrintf( contentsString + length, sizeof( contentsString ) - length, cm_contentsNameByIndex[i] );
}
}
return contentsString;
}
/*
================
idCollisionModelManagerLocal::DrawEdge
================
*/
void idCollisionModelManagerLocal::DrawEdge( cm_model_t *model, int edgeNum, const idVec3 &origin, const idMat3 &axis ) {
int side;
cm_edge_t *edge;
idVec3 start, end, mid;
bool isRotated;
isRotated = axis.IsRotated();
edge = model->edges + abs(edgeNum);
side = edgeNum < 0;
start = model->vertices[edge->vertexNum[side]].p;
end = model->vertices[edge->vertexNum[!side]].p;
if ( isRotated ) {
start *= axis;
end *= axis;
}
start += origin;
end += origin;
if ( edge->internal ) {
if ( cm_drawInternal.GetBool() ) {
common->RW()->DebugArrow( colorGreen, start, end, 1 );
}
} else {
if ( edge->numUsers > 2 ) {
common->RW()->DebugArrow( colorBlue, start, end, 1 );
} else {
common->RW()->DebugArrow( cm_color, start, end, 1 );
}
}
if ( cm_drawNormals.GetBool() ) {
mid = (start + end) * 0.5f;
if ( isRotated ) {
end = mid + 5 * (axis * edge->normal);
} else {
end = mid + 5 * edge->normal;
}
common->RW()->DebugArrow( colorCyan, mid, end, 1 );
}
}
/*
================
idCollisionModelManagerLocal::DrawPolygon
================
*/
void idCollisionModelManagerLocal::DrawPolygon( cm_model_t *model, cm_polygon_t *p, const idVec3 &origin, const idMat3 &axis, const idVec3 &viewOrigin ) {
int i, edgeNum;
cm_edge_t *edge;
idVec3 center, end, dir;
if ( cm_backFaceCull.GetBool() ) {
edgeNum = p->edges[0];
edge = model->edges + abs(edgeNum);
dir = model->vertices[edge->vertexNum[0]].p - viewOrigin;
if ( dir * p->plane.Normal() > 0.0f ) {
return;
}
}
if ( cm_drawNormals.GetBool() ) {
center = vec3_origin;
for ( i = 0; i < p->numEdges; i++ ) {
edgeNum = p->edges[i];
edge = model->edges + abs(edgeNum);
center += model->vertices[edge->vertexNum[edgeNum < 0]].p;
}
center *= (1.0f / p->numEdges);
if ( axis.IsRotated() ) {
center = center * axis + origin;
end = center + 5 * (axis * p->plane.Normal());
} else {
center += origin;
end = center + 5 * p->plane.Normal();
}
common->RW()->DebugArrow( colorMagenta, center, end, 1 );
}
if ( cm_drawFilled.GetBool() ) {
idFixedWinding winding;
for ( i = p->numEdges - 1; i >= 0; i-- ) {
edgeNum = p->edges[i];
edge = model->edges + abs(edgeNum);
winding += origin + model->vertices[edge->vertexNum[INT32_SIGNBITSET(edgeNum)]].p * axis;
}
common->RW()->DebugPolygon( cm_color, winding );
} else {
for ( i = 0; i < p->numEdges; i++ ) {
edgeNum = p->edges[i];
edge = model->edges + abs(edgeNum);
if ( edge->checkcount == checkCount ) {
continue;
}
edge->checkcount = checkCount;
DrawEdge( model, edgeNum, origin, axis );
}
}
}
/*
================
idCollisionModelManagerLocal::DrawNodePolygons
================
*/
void idCollisionModelManagerLocal::DrawNodePolygons( cm_model_t *model, cm_node_t *node,
const idVec3 &origin, const idMat3 &axis,
const idVec3 &viewOrigin, const float radius ) {
int i;
cm_polygon_t *p;
cm_polygonRef_t *pref;
while (1) {
for ( pref = node->polygons; pref; pref = pref->next ) {
p = pref->p;
if ( radius ) {
// polygon bounds should overlap with trace bounds
for ( i = 0; i < 3; i++ ) {
if ( p->bounds[0][i] > viewOrigin[i] + radius ) {
break;
}
if ( p->bounds[1][i] < viewOrigin[i] - radius ) {
break;
}
}
if ( i < 3 ) {
continue;
}
}
if ( p->checkcount == checkCount ) {
continue;
}
if ( !( p->contents & cm_contentsFlagByIndex[cm_drawMask.GetInteger()] ) ) {
continue;
}
DrawPolygon( model, p, origin, axis, viewOrigin );
p->checkcount = checkCount;
}
if ( node->planeType == -1 ) {
break;
}
if ( radius && viewOrigin[node->planeType] > node->planeDist + radius ) {
node = node->children[0];
} else if ( radius && viewOrigin[node->planeType] < node->planeDist - radius ) {
node = node->children[1];
} else {
DrawNodePolygons( model, node->children[1], origin, axis, viewOrigin, radius );
node = node->children[0];
}
}
}
/*
================
idCollisionModelManagerLocal::DrawModel
================
*/
void idCollisionModelManagerLocal::DrawModel( cmHandle_t handle, const idVec3 &modelOrigin, const idMat3 &modelAxis,
const idVec3 &viewOrigin, const float radius ) {
cm_model_t *model;
idVec3 viewPos;
if ( handle < 0 && handle >= numModels ) {
return;
}
if ( cm_drawColor.IsModified() ) {
sscanf( cm_drawColor.GetString(), "%f %f %f %f", &cm_color.x, &cm_color.y, &cm_color.z, &cm_color.w );
cm_drawColor.ClearModified();
}
model = models[ handle ];
viewPos = (viewOrigin - modelOrigin) * modelAxis.Transpose();
checkCount++;
DrawNodePolygons( model, model->node, modelOrigin, modelAxis, viewPos, radius );
}
/*
===============================================================================
Speed test code
===============================================================================
*/
static idCVar cm_testCollision( "cm_testCollision", "0", CVAR_GAME | CVAR_BOOL, "" );
static idCVar cm_testRotation( "cm_testRotation", "1", CVAR_GAME | CVAR_BOOL, "" );
static idCVar cm_testModel( "cm_testModel", "0", CVAR_GAME | CVAR_INTEGER, "" );
static idCVar cm_testTimes( "cm_testTimes", "1000", CVAR_GAME | CVAR_INTEGER, "" );
static idCVar cm_testRandomMany( "cm_testRandomMany", "0", CVAR_GAME | CVAR_BOOL, "" );
static idCVar cm_testOrigin( "cm_testOrigin", "0 0 0", CVAR_GAME, "" );
static idCVar cm_testReset( "cm_testReset", "0", CVAR_GAME | CVAR_BOOL, "" );
static idCVar cm_testBox( "cm_testBox", "-16 -16 0 16 16 64", CVAR_GAME, "" );
static idCVar cm_testBoxRotation( "cm_testBoxRotation", "0 0 0", CVAR_GAME, "" );
static idCVar cm_testWalk( "cm_testWalk", "1", CVAR_GAME | CVAR_BOOL, "" );
static idCVar cm_testLength( "cm_testLength", "1024", CVAR_GAME | CVAR_FLOAT, "" );
static idCVar cm_testRadius( "cm_testRadius", "64", CVAR_GAME | CVAR_FLOAT, "" );
static idCVar cm_testAngle( "cm_testAngle", "60", CVAR_GAME | CVAR_FLOAT, "" );
static int total_translation;
static int min_translation = 999999;
static int max_translation = -999999;
static int num_translation = 0;
static int total_rotation;
static int min_rotation = 999999;
static int max_rotation = -999999;
static int num_rotation = 0;
static idVec3 start;
static idVec3 *testend;
#include "../sys/sys_public.h"
void idCollisionModelManagerLocal::DebugOutput( const idVec3 &origin ) {
int i, k, t;
char buf[128];
idVec3 end;
idAngles boxAngles;
idMat3 modelAxis, boxAxis;
idBounds bounds;
trace_t trace;
if ( !cm_testCollision.GetBool() ) {
return;
}
testend = (idVec3 *) Mem_Alloc( cm_testTimes.GetInteger() * sizeof(idVec3), TAG_COLLISION );
if ( cm_testReset.GetBool() || ( cm_testWalk.GetBool() && !start.Compare( start ) ) ) {
total_translation = total_rotation = 0;
min_translation = min_rotation = 999999;
max_translation = max_rotation = -999999;
num_translation = num_rotation = 0;
cm_testReset.SetBool( false );
}
if ( cm_testWalk.GetBool() ) {
start = origin;
cm_testOrigin.SetString( va( "%1.2f %1.2f %1.2f", start[0], start[1], start[2] ) );
} else {
sscanf( cm_testOrigin.GetString(), "%f %f %f", &start[0], &start[1], &start[2] );
}
sscanf( cm_testBox.GetString(), "%f %f %f %f %f %f", &bounds[0][0], &bounds[0][1], &bounds[0][2],
&bounds[1][0], &bounds[1][1], &bounds[1][2] );
sscanf( cm_testBoxRotation.GetString(), "%f %f %f", &boxAngles[0], &boxAngles[1], &boxAngles[2] );
boxAxis = boxAngles.ToMat3();
modelAxis.Identity();
idTraceModel itm( bounds );
idRandom random( 0 );
idTimer timer;
if ( cm_testRandomMany.GetBool() ) {
// if many traces in one random direction
for ( i = 0; i < 3; i++ ) {
testend[0][i] = start[i] + random.CRandomFloat() * cm_testLength.GetFloat();
}
for ( k = 1; k < cm_testTimes.GetInteger(); k++ ) {
testend[k] = testend[0];
}
} else {
// many traces each in a different random direction
for ( k = 0; k < cm_testTimes.GetInteger(); k++ ) {
for ( i = 0; i < 3; i++ ) {
testend[k][i] = start[i] + random.CRandomFloat() * cm_testLength.GetFloat();
}
}
}
// translational collision detection
timer.Clear();
timer.Start();
for ( i = 0; i < cm_testTimes.GetInteger(); i++ ) {
Translation( &trace, start, testend[i], &itm, boxAxis, CONTENTS_SOLID|CONTENTS_PLAYERCLIP, cm_testModel.GetInteger(), vec3_origin, modelAxis );
}
timer.Stop();
t = timer.Milliseconds();
if ( t < min_translation ) min_translation = t;
if ( t > max_translation ) max_translation = t;
num_translation++;
total_translation += t;
if ( cm_testTimes.GetInteger() > 9999 ) {
sprintf( buf, "%3dK", (int ) ( cm_testTimes.GetInteger() / 1000 ) );
} else {
sprintf( buf, "%4d", cm_testTimes.GetInteger() );
}
common->Printf("%s translations: %4d milliseconds, (min = %d, max = %d, av = %1.1f)\n", buf, t, min_translation, max_translation, (float) total_translation / num_translation );
if ( cm_testRandomMany.GetBool() ) {
// if many traces in one random direction
for ( i = 0; i < 3; i++ ) {
testend[0][i] = start[i] + random.CRandomFloat() * cm_testRadius.GetFloat();
}
for ( k = 1; k < cm_testTimes.GetInteger(); k++ ) {
testend[k] = testend[0];
}
} else {
// many traces each in a different random direction
for ( k = 0; k < cm_testTimes.GetInteger(); k++ ) {
for ( i = 0; i < 3; i++ ) {
testend[k][i] = start[i] + random.CRandomFloat() * cm_testRadius.GetFloat();
}
}
}
if ( cm_testRotation.GetBool() ) {
// rotational collision detection
idVec3 vec( random.CRandomFloat(), random.CRandomFloat(), random.RandomFloat() );
vec.Normalize();
idRotation rotation( vec3_origin, vec, cm_testAngle.GetFloat() );
timer.Clear();
timer.Start();
for ( i = 0; i < cm_testTimes.GetInteger(); i++ ) {
rotation.SetOrigin( testend[i] );
Rotation( &trace, start, rotation, &itm, boxAxis, CONTENTS_SOLID|CONTENTS_PLAYERCLIP, cm_testModel.GetInteger(), vec3_origin, modelAxis );
}
timer.Stop();
t = timer.Milliseconds();
if ( t < min_rotation ) min_rotation = t;
if ( t > max_rotation ) max_rotation = t;
num_rotation++;
total_rotation += t;
if ( cm_testTimes.GetInteger() > 9999 ) {
sprintf( buf, "%3dK", (int ) ( cm_testTimes.GetInteger() / 1000 ) );
} else {
sprintf( buf, "%4d", cm_testTimes.GetInteger() );
}
common->Printf("%s rotation: %4d milliseconds, (min = %d, max = %d, av = %1.1f)\n", buf, t, min_rotation, max_rotation, (float) total_rotation / num_rotation );
}
Mem_Free( testend );
testend = NULL;
}
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