mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2024-11-21 20:01:13 +00:00
1386 lines
37 KiB
C++
1386 lines
37 KiB
C++
/*
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===========================================================================
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Doom 3 BFG Edition GPL Source Code
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Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
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Doom 3 BFG Edition 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 BFG Edition 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 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
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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.
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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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#include "../idlib/precompiled.h"
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#pragma hdrstop
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#include "Game_local.h"
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CLASS_DECLARATION( idEntity, idBrittleFracture )
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EVENT( EV_Activate, idBrittleFracture::Event_Activate )
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EVENT( EV_Touch, idBrittleFracture::Event_Touch )
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END_CLASS
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const int SHARD_ALIVE_TIME = 5000;
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const int SHARD_FADE_START = 2000;
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static const char *brittleFracture_SnapshotName = "_BrittleFracture_Snapshot_";
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/*
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================
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idBrittleFracture::idBrittleFracture
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================
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*/
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idBrittleFracture::idBrittleFracture() {
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material = NULL;
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decalMaterial = NULL;
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decalSize = 0.0f;
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maxShardArea = 0.0f;
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maxShatterRadius = 0.0f;
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minShatterRadius = 0.0f;
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linearVelocityScale = 0.0f;
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angularVelocityScale = 0.0f;
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shardMass = 0.0f;
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density = 0.0f;
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friction = 0.0f;
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bouncyness = 0.0f;
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fxFracture.Clear();
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bounds.Clear();
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disableFracture = false;
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lastRenderEntityUpdate = -1;
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changed = false;
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fl.networkSync = true;
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isXraySurface = false;
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}
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/*
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================
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idBrittleFracture::~idBrittleFracture
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================
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*/
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idBrittleFracture::~idBrittleFracture() {
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int i;
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for ( i = 0; i < shards.Num(); i++ ) {
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shards[i]->decals.DeleteContents( true );
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delete shards[i];
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}
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// make sure the render entity is freed before the model is freed
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FreeModelDef();
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renderModelManager->FreeModel( renderEntity.hModel );
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// Free our events list memory
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storedEvents.Clear();
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}
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/*
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================
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idBrittleFracture::Save
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================
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*/
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void idBrittleFracture::Save( idSaveGame *savefile ) const {
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savefile->WriteInt( health );
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entityFlags_s flags = fl;
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LittleBitField( &flags, sizeof( flags ) );
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savefile->Write( &flags, sizeof( flags ) );
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// setttings
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savefile->WriteMaterial( material );
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savefile->WriteMaterial( decalMaterial );
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savefile->WriteFloat( decalSize );
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savefile->WriteFloat( maxShardArea );
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savefile->WriteFloat( maxShatterRadius );
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savefile->WriteFloat( minShatterRadius );
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savefile->WriteFloat( linearVelocityScale );
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savefile->WriteFloat( angularVelocityScale );
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savefile->WriteFloat( shardMass );
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savefile->WriteFloat( density );
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savefile->WriteFloat( friction );
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savefile->WriteFloat( bouncyness );
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savefile->WriteString( fxFracture );
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// state
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savefile->WriteBounds( bounds );
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savefile->WriteBool( disableFracture );
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savefile->WriteInt( lastRenderEntityUpdate );
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savefile->WriteBool( changed );
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savefile->WriteModel( defaultRenderModel );
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// So we can re-break the object on load if needed
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savefile->WriteInt( storedEvents.Num() );
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for ( int i = 0; i < storedEvents.Num(); ++i ) {
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savefile->WriteInt( storedEvents[i].eventType );
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savefile->WriteVec3( storedEvents[i].point );
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savefile->WriteVec3( storedEvents[i].vector );
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}
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savefile->WriteBool( isXraySurface );
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}
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/*
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================
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idBrittleFracture::Restore
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================
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*/
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void idBrittleFracture::Restore( idRestoreGame *savefile ) {
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savefile->ReadInt( health );
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savefile->Read( &fl, sizeof( fl ) );
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LittleBitField( &fl, sizeof( fl ) );
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// setttings
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savefile->ReadMaterial( material );
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savefile->ReadMaterial( decalMaterial );
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savefile->ReadFloat( decalSize );
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savefile->ReadFloat( maxShardArea );
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savefile->ReadFloat( maxShatterRadius );
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savefile->ReadFloat( minShatterRadius );
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savefile->ReadFloat( linearVelocityScale );
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savefile->ReadFloat( angularVelocityScale );
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savefile->ReadFloat( shardMass );
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savefile->ReadFloat( density );
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savefile->ReadFloat( friction );
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savefile->ReadFloat( bouncyness );
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savefile->ReadString( fxFracture );
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// state
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savefile->ReadBounds(bounds);
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savefile->ReadBool( disableFracture );
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savefile->ReadInt( lastRenderEntityUpdate );
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savefile->ReadBool( changed );
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savefile->ReadModel( defaultRenderModel );
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// Reset all brittle Fractures so we can re-break them if necessary
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fl.takedamage = true;
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CreateFractures( defaultRenderModel );
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FindNeighbours();
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int numEvents = 0;
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bool resolveBreaks = false;
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savefile->ReadInt( numEvents );
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for( int i = 0; i < numEvents; i++ ) {
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fractureEvent_s restoredEvent;
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savefile->ReadInt( restoredEvent.eventType );
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savefile->ReadVec3( restoredEvent.point );
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savefile->ReadVec3( restoredEvent.vector );
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if ( restoredEvent.eventType == EVENT_PROJECT_DECAL ) {
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ProjectDecal( restoredEvent.point, restoredEvent.vector, gameLocal.time, NULL );
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} else {
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Shatter( restoredEvent.point, restoredEvent.vector, gameLocal.time );
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}
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resolveBreaks = true;
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}
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// remove any dropped shards
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for ( int i = 0; resolveBreaks && i < shards.Num(); i++ ) {
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if ( shards[i]->droppedTime!= -1 ) {
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RemoveShard( i );
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i--;
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}
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}
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renderEntity.hModel = renderModelManager->AllocModel();
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renderEntity.hModel->InitEmpty( brittleFracture_SnapshotName );
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renderEntity.callback = idBrittleFracture::ModelCallback;
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renderEntity.noShadow = true;
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renderEntity.noSelfShadow = true;
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renderEntity.noDynamicInteractions = false;
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savefile->ReadBool( isXraySurface );
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}
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/*
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================
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idBrittleFracture::Spawn
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================
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*/
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void idBrittleFracture::Spawn() {
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// get shard properties
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decalMaterial = declManager->FindMaterial( spawnArgs.GetString( "mtr_decal" ) );
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decalSize = spawnArgs.GetFloat( "decalSize", "40" );
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maxShardArea = spawnArgs.GetFloat( "maxShardArea", "200" ) * 2.0f ;
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maxShardArea = idMath::ClampFloat( 100, 10000, maxShardArea );
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maxShatterRadius = spawnArgs.GetFloat( "maxShatterRadius", "40" );
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minShatterRadius = spawnArgs.GetFloat( "minShatterRadius", "10" );
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linearVelocityScale = spawnArgs.GetFloat( "linearVelocityScale", "0.1" );
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angularVelocityScale = spawnArgs.GetFloat( "angularVelocityScale", "40" );
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fxFracture = spawnArgs.GetString( "fx" );
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// make sure that max is greater than min ( otherwise negative number square root happens )
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if( maxShatterRadius < minShatterRadius ) {
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idLib::Warning( "BrittleFracture, minShatterRadius(%2f) is greater than maxShatterRadius(%2f). Unknown results will ensue.", minShatterRadius, maxShatterRadius );
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}
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// get rigid body properties
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shardMass = spawnArgs.GetFloat( "shardMass", "20" );
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shardMass = idMath::ClampFloat( 0.001f, 1000.0f, shardMass );
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spawnArgs.GetFloat( "density", "0.1", density );
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density = idMath::ClampFloat( 0.001f, 1000.0f, density );
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spawnArgs.GetFloat( "friction", "0.4", friction );
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friction = idMath::ClampFloat( 0.0f, 1.0f, friction );
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spawnArgs.GetFloat( "bouncyness", "0.01", bouncyness );
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bouncyness = idMath::ClampFloat( 0.0f, 1.0f, bouncyness );
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disableFracture = spawnArgs.GetBool( "disableFracture", "0" );
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health = spawnArgs.GetInt( "health", "40" );
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fl.takedamage = true;
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// FIXME: set "bleed" so idProjectile calls AddDamageEffect
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spawnArgs.SetBool( "bleed", 1 );
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// check for xray surface
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if ( renderEntity.hModel != NULL ) {
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const idRenderModel *model = renderEntity.hModel;
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isXraySurface = false;
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for ( int i = 0; i < model->NumSurfaces(); i++ ) {
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const modelSurface_t *surf = model->Surface( i );
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if ( idStr( surf->shader->GetName() ) == "textures/smf/window_scratch" ) {
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isXraySurface = true;
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break;
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}
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}
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}
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CreateFractures( renderEntity.hModel );
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FindNeighbours();
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defaultRenderModel = renderEntity.hModel;
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renderEntity.hModel = renderModelManager->AllocModel();
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renderEntity.hModel->InitEmpty( brittleFracture_SnapshotName );
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renderEntity.callback = idBrittleFracture::ModelCallback;
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renderEntity.noShadow = true;
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renderEntity.noSelfShadow = true;
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renderEntity.noDynamicInteractions = false;
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}
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/*
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================
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idBrittleFracture::AddShard
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================
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*/
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void idBrittleFracture::AddShard( idClipModel *clipModel, idFixedWinding &w ) {
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shard_t *shard = new (TAG_PARTICLE) shard_t;
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shard->clipModel = clipModel;
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shard->droppedTime = -1;
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shard->winding = w;
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shard->decals.Clear();
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shard->edgeHasNeighbour.AssureSize( w.GetNumPoints(), false );
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shard->neighbours.Clear();
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shard->atEdge = false;
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shards.Append( shard );
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}
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/*
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================
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idBrittleFracture::RemoveShard
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================
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*/
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void idBrittleFracture::RemoveShard( int index ) {
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int i;
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delete shards[index];
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shards.RemoveIndex( index );
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physicsObj.RemoveIndex( index );
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for ( i = index; i < shards.Num(); i++ ) {
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shards[i]->clipModel->SetId( i );
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}
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}
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/*
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================
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idBrittleFracture::UpdateRenderEntity
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================
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*/
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bool idBrittleFracture::UpdateRenderEntity( renderEntity_s *renderEntity, const renderView_t *renderView ) const {
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int i, j, k, n, msec, numTris, numDecalTris;
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float fade;
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dword packedColor;
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srfTriangles_t *tris, *decalTris;
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modelSurface_t surface;
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idDrawVert *v;
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idPlane plane;
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idMat3 tangents;
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// this may be triggered by a model trace or other non-view related source,
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// to which we should look like an empty model
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if ( !renderView ) {
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return false;
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}
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// don't regenerate it if it is current
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if ( lastRenderEntityUpdate == gameLocal.time || !changed ) {
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return false;
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}
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lastRenderEntityUpdate = gameLocal.time;
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changed = false;
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numTris = 0;
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numDecalTris = 0;
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for ( i = 0; i < shards.Num(); i++ ) {
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n = shards[i]->winding.GetNumPoints();
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if ( n > 2 ) {
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numTris += n - 2;
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}
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for ( k = 0; k < shards[i]->decals.Num(); k++ ) {
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n = shards[i]->decals[k]->GetNumPoints();
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if ( n > 2 ) {
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numDecalTris += n - 2;
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}
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}
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}
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// FIXME: re-use model surfaces
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renderEntity->hModel->InitEmpty( brittleFracture_SnapshotName );
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// allocate triangle surfaces for the fractures and decals
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tris = renderEntity->hModel->AllocSurfaceTriangles( numTris * 3, material->ShouldCreateBackSides() ? numTris * 6 : numTris * 3 );
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decalTris = renderEntity->hModel->AllocSurfaceTriangles( numDecalTris * 3, decalMaterial->ShouldCreateBackSides() ? numDecalTris * 6 : numDecalTris * 3 );
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for ( i = 0; i < shards.Num(); i++ ) {
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const idVec3 &origin = shards[i]->clipModel->GetOrigin();
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const idMat3 &axis = shards[i]->clipModel->GetAxis();
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fade = 1.0f;
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if ( shards[i]->droppedTime >= 0 ) {
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msec = gameLocal.time - shards[i]->droppedTime - SHARD_FADE_START;
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if ( msec > 0 ) {
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fade = 1.0f - (float) msec / ( SHARD_ALIVE_TIME - SHARD_FADE_START );
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}
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}
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packedColor = PackColor( idVec4( renderEntity->shaderParms[ SHADERPARM_RED ] * fade,
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renderEntity->shaderParms[ SHADERPARM_GREEN ] * fade,
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renderEntity->shaderParms[ SHADERPARM_BLUE ] * fade,
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fade ) );
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const idWinding &winding = shards[i]->winding;
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winding.GetPlane( plane );
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tangents = ( plane.Normal() * axis ).ToMat3();
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for ( j = 2; j < winding.GetNumPoints(); j++ ) {
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v = &tris->verts[tris->numVerts++];
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v->Clear();
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v->xyz = origin + winding[0].ToVec3() * axis;
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v->SetTexCoord( winding[0].s, winding[0].t );
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v->SetNormal( tangents[0] );
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v->SetTangent( tangents[1] );
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v->SetBiTangent( tangents[2] );
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v->SetColor( packedColor );
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v = &tris->verts[tris->numVerts++];
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v->Clear();
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v->xyz = origin + winding[j-1].ToVec3() * axis;
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v->SetTexCoord( winding[j-1].s, winding[j-1].t );
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v->SetNormal( tangents[0] );
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v->SetTangent( tangents[1] );
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v->SetBiTangent( tangents[2] );
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v->SetColor( packedColor );
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v = &tris->verts[tris->numVerts++];
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v->Clear();
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v->xyz = origin + winding[j].ToVec3() * axis;
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v->SetTexCoord( winding[j].s, winding[j].t );
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v->SetNormal( tangents[0] );
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v->SetTangent( tangents[1] );
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v->SetBiTangent( tangents[2] );
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v->SetColor( packedColor );
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tris->indexes[tris->numIndexes++] = tris->numVerts - 3;
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tris->indexes[tris->numIndexes++] = tris->numVerts - 2;
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tris->indexes[tris->numIndexes++] = tris->numVerts - 1;
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if ( material->ShouldCreateBackSides() ) {
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tris->indexes[tris->numIndexes++] = tris->numVerts - 2;
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tris->indexes[tris->numIndexes++] = tris->numVerts - 3;
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tris->indexes[tris->numIndexes++] = tris->numVerts - 1;
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}
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}
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for ( k = 0; k < shards[i]->decals.Num(); k++ ) {
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const idWinding &decalWinding = *shards[i]->decals[k];
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for ( j = 2; j < decalWinding.GetNumPoints(); j++ ) {
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v = &decalTris->verts[decalTris->numVerts++];
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v->Clear();
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v->xyz = origin + decalWinding[0].ToVec3() * axis;
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v->SetTexCoord( decalWinding[0].s, decalWinding[0].t );
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v->SetNormal( tangents[0] );
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v->SetTangent( tangents[1] );
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v->SetBiTangent( tangents[2] );
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v->SetColor( packedColor );
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v = &decalTris->verts[decalTris->numVerts++];
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v->Clear();
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v->xyz = origin + decalWinding[j-1].ToVec3() * axis;
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v->SetTexCoord( decalWinding[j-1].s, decalWinding[j-1].t );
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v->SetNormal( tangents[0] );
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v->SetTangent( tangents[1] );
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v->SetBiTangent( tangents[2] );
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v->SetColor( packedColor );
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v = &decalTris->verts[decalTris->numVerts++];
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v->Clear();
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v->xyz = origin + decalWinding[j].ToVec3() * axis;
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v->SetTexCoord( decalWinding[j].s, decalWinding[j].t );
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v->SetNormal( tangents[0] );
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v->SetTangent( tangents[1] );
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v->SetBiTangent( tangents[2] );
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v->SetColor( packedColor );
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decalTris->indexes[decalTris->numIndexes++] = decalTris->numVerts - 3;
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decalTris->indexes[decalTris->numIndexes++] = decalTris->numVerts - 2;
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decalTris->indexes[decalTris->numIndexes++] = decalTris->numVerts - 1;
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if ( decalMaterial->ShouldCreateBackSides() ) {
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decalTris->indexes[decalTris->numIndexes++] = decalTris->numVerts - 2;
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decalTris->indexes[decalTris->numIndexes++] = decalTris->numVerts - 3;
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decalTris->indexes[decalTris->numIndexes++] = decalTris->numVerts - 1;
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}
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}
|
|
}
|
|
}
|
|
|
|
tris->tangentsCalculated = true;
|
|
decalTris->tangentsCalculated = true;
|
|
|
|
SIMDProcessor->MinMax( tris->bounds[0], tris->bounds[1], tris->verts, tris->numVerts );
|
|
SIMDProcessor->MinMax( decalTris->bounds[0], decalTris->bounds[1], decalTris->verts, decalTris->numVerts );
|
|
|
|
memset( &surface, 0, sizeof( surface ) );
|
|
surface.shader = material;
|
|
surface.id = 0;
|
|
surface.geometry = tris;
|
|
renderEntity->hModel->AddSurface( surface );
|
|
|
|
memset( &surface, 0, sizeof( surface ) );
|
|
surface.shader = decalMaterial;
|
|
surface.id = 1;
|
|
surface.geometry = decalTris;
|
|
renderEntity->hModel->AddSurface( surface );
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::ModelCallback
|
|
================
|
|
*/
|
|
bool idBrittleFracture::ModelCallback( renderEntity_s *renderEntity, const renderView_t *renderView ) {
|
|
const idBrittleFracture *ent;
|
|
|
|
ent = static_cast<idBrittleFracture *>(gameLocal.entities[ renderEntity->entityNum ]);
|
|
if ( ent == NULL ) {
|
|
gameLocal.Error( "idBrittleFracture::ModelCallback: callback with NULL game entity" );
|
|
return false;
|
|
}
|
|
|
|
return ent->UpdateRenderEntity( renderEntity, renderView );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::Present
|
|
================
|
|
*/
|
|
void idBrittleFracture::Present() {
|
|
|
|
// don't present to the renderer if the entity hasn't changed
|
|
if ( !( thinkFlags & TH_UPDATEVISUALS ) ) {
|
|
return;
|
|
}
|
|
BecomeInactive( TH_UPDATEVISUALS );
|
|
|
|
renderEntity.bounds = bounds;
|
|
renderEntity.origin.Zero();
|
|
renderEntity.axis.Identity();
|
|
|
|
// force an update because the bounds/origin/axis may stay the same while the model changes
|
|
renderEntity.forceUpdate = true;
|
|
|
|
// add to refresh list
|
|
if ( modelDefHandle == -1 ) {
|
|
modelDefHandle = gameRenderWorld->AddEntityDef( &renderEntity );
|
|
} else {
|
|
gameRenderWorld->UpdateEntityDef( modelDefHandle, &renderEntity );
|
|
}
|
|
|
|
changed = true;
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::Think
|
|
================
|
|
*/
|
|
void idBrittleFracture::Think() {
|
|
int i, startTime, endTime, droppedTime;
|
|
shard_t *shard;
|
|
bool atRest = true, fading = false;
|
|
|
|
// remove overdue shards
|
|
for ( i = 0; i < shards.Num(); i++ ) {
|
|
droppedTime = shards[i]->droppedTime;
|
|
if ( droppedTime != -1 ) {
|
|
if ( gameLocal.time - droppedTime > SHARD_ALIVE_TIME ) {
|
|
RemoveShard( i );
|
|
i--;
|
|
}
|
|
fading = true;
|
|
}
|
|
}
|
|
|
|
// remove the entity when nothing is visible
|
|
if ( !shards.Num() ) {
|
|
PostEventMS( &EV_Remove, 0 );
|
|
return;
|
|
}
|
|
|
|
if ( thinkFlags & TH_PHYSICS ) {
|
|
|
|
startTime = gameLocal.previousTime;
|
|
endTime = gameLocal.time;
|
|
|
|
// run physics on shards
|
|
for ( i = 0; i < shards.Num(); i++ ) {
|
|
shard = shards[i];
|
|
|
|
if ( shard->droppedTime == -1 ) {
|
|
continue;
|
|
}
|
|
|
|
shard->physicsObj.Evaluate( endTime - startTime, endTime );
|
|
|
|
if ( !shard->physicsObj.IsAtRest() ) {
|
|
atRest = false;
|
|
}
|
|
}
|
|
|
|
if ( atRest ) {
|
|
BecomeInactive( TH_PHYSICS );
|
|
} else {
|
|
BecomeActive( TH_PHYSICS );
|
|
}
|
|
}
|
|
|
|
if ( !atRest || bounds.IsCleared() ) {
|
|
bounds.Clear();
|
|
for ( i = 0; i < shards.Num(); i++ ) {
|
|
bounds.AddBounds( shards[i]->clipModel->GetAbsBounds() );
|
|
}
|
|
}
|
|
|
|
if ( fading ) {
|
|
BecomeActive( TH_UPDATEVISUALS | TH_THINK );
|
|
} else {
|
|
BecomeInactive( TH_THINK );
|
|
}
|
|
|
|
RunPhysics();
|
|
Present();
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::ApplyImpulse
|
|
================
|
|
*/
|
|
void idBrittleFracture::ApplyImpulse( idEntity *ent, int id, const idVec3 &point, const idVec3 &impulse ) {
|
|
|
|
if ( id < 0 || id >= shards.Num() ) {
|
|
return;
|
|
}
|
|
|
|
if ( shards[id]->droppedTime != -1 ) {
|
|
shards[id]->physicsObj.ApplyImpulse( 0, point, impulse );
|
|
} else if ( health <= 0 && !disableFracture ) {
|
|
Shatter( point, impulse, gameLocal.time );
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::AddForce
|
|
================
|
|
*/
|
|
void idBrittleFracture::AddForce( idEntity *ent, int id, const idVec3 &point, const idVec3 &force ) {
|
|
|
|
if ( id < 0 || id >= shards.Num() ) {
|
|
return;
|
|
}
|
|
|
|
if ( shards[id]->droppedTime != -1 ) {
|
|
shards[id]->physicsObj.AddForce( 0, point, force );
|
|
} else if ( health <= 0 && !disableFracture ) {
|
|
Shatter( point, force, gameLocal.time );
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::ProjectDecal
|
|
================
|
|
*/
|
|
void idBrittleFracture::ProjectDecal( const idVec3 &point, const idVec3 &dir, const int time, const char *damageDefName ) {
|
|
int i, j, bits, clipBits;
|
|
float a, c, s;
|
|
idVec2 st[MAX_POINTS_ON_WINDING];
|
|
idVec3 origin;
|
|
idMat3 axis, axistemp;
|
|
idPlane textureAxis[2];
|
|
|
|
if ( common->IsServer() ) {
|
|
idBitMsg msg;
|
|
byte msgBuf[MAX_EVENT_PARAM_SIZE];
|
|
|
|
msg.InitWrite( msgBuf, sizeof( msgBuf ) );
|
|
msg.BeginWriting();
|
|
msg.WriteFloat( point[0] );
|
|
msg.WriteFloat( point[1] );
|
|
msg.WriteFloat( point[2] );
|
|
msg.WriteFloat( dir[0] );
|
|
msg.WriteFloat( dir[1] );
|
|
msg.WriteFloat( dir[2] );
|
|
ServerSendEvent( EVENT_PROJECT_DECAL, &msg, true );
|
|
}
|
|
|
|
// store the event so we can rebuilt the fracture after loading a save
|
|
fractureEvent_s fractureEvent;
|
|
fractureEvent.eventType = EVENT_PROJECT_DECAL;
|
|
fractureEvent.point = point;
|
|
fractureEvent.vector = dir;
|
|
storedEvents.Append( fractureEvent );
|
|
|
|
if ( time >= gameLocal.time ) {
|
|
// try to get the sound from the damage def
|
|
const idDeclEntityDef *damageDef = NULL;
|
|
const idSoundShader *sndShader = NULL;
|
|
if ( damageDefName ) {
|
|
damageDef = gameLocal.FindEntityDef( damageDefName, false );
|
|
if ( damageDef ) {
|
|
const char * sndName = damageDef->dict.GetString( "snd_shatter", "" );
|
|
if ( sndName[0] != 0 ) {
|
|
sndShader = declManager->FindSound( sndName );
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( sndShader ) {
|
|
StartSoundShader( sndShader, SND_CHANNEL_ANY, 0, false, NULL );
|
|
} else {
|
|
StartSound( "snd_bullethole", SND_CHANNEL_ANY, 0, false, NULL );
|
|
}
|
|
}
|
|
|
|
a = gameLocal.random.RandomFloat() * idMath::TWO_PI;
|
|
c = cos( a );
|
|
s = -sin( a );
|
|
|
|
axis[2] = -dir;
|
|
axis[2].Normalize();
|
|
axis[2].NormalVectors( axistemp[0], axistemp[1] );
|
|
axis[0] = axistemp[ 0 ] * c + axistemp[ 1 ] * s;
|
|
axis[1] = axistemp[ 0 ] * s + axistemp[ 1 ] * -c;
|
|
|
|
textureAxis[0] = axis[0] * ( 1.0f / decalSize );
|
|
textureAxis[0][3] = -( point * textureAxis[0].Normal() ) + 0.5f;
|
|
|
|
textureAxis[1] = axis[1] * ( 1.0f / decalSize );
|
|
textureAxis[1][3] = -( point * textureAxis[1].Normal() ) + 0.5f;
|
|
|
|
for ( i = 0; i < shards.Num(); i++ ) {
|
|
idFixedWinding &winding = shards[i]->winding;
|
|
origin = shards[i]->clipModel->GetOrigin();
|
|
axis = shards[i]->clipModel->GetAxis();
|
|
float d0, d1;
|
|
|
|
clipBits = -1;
|
|
for ( j = 0; j < winding.GetNumPoints(); j++ ) {
|
|
idVec3 p = origin + winding[j].ToVec3() * axis;
|
|
|
|
st[j].x = d0 = textureAxis[0].Distance( p );
|
|
st[j].y = d1 = textureAxis[1].Distance( p );
|
|
|
|
bits = IEEE_FLT_SIGNBITSET( d0 );
|
|
d0 = 1.0f - d0;
|
|
bits |= IEEE_FLT_SIGNBITSET( d1 ) << 2;
|
|
d1 = 1.0f - d1;
|
|
bits |= IEEE_FLT_SIGNBITSET( d0 ) << 1;
|
|
bits |= IEEE_FLT_SIGNBITSET( d1 ) << 3;
|
|
|
|
clipBits &= bits;
|
|
}
|
|
|
|
if ( clipBits ) {
|
|
continue;
|
|
}
|
|
|
|
idFixedWinding *decal = new (TAG_PARTICLE) idFixedWinding;
|
|
shards[i]->decals.Append( decal );
|
|
|
|
decal->SetNumPoints( winding.GetNumPoints() );
|
|
for ( j = 0; j < winding.GetNumPoints(); j++ ) {
|
|
(*decal)[j].ToVec3() = winding[j].ToVec3();
|
|
(*decal)[j].s = st[j].x;
|
|
(*decal)[j].t = st[j].y;
|
|
}
|
|
}
|
|
|
|
BecomeActive( TH_UPDATEVISUALS );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::DropShard
|
|
================
|
|
*/
|
|
void idBrittleFracture::DropShard( shard_t *shard, const idVec3 &point, const idVec3 &dir, const float impulse, const int time ) {
|
|
int i, j, clipModelId;
|
|
float dist, f;
|
|
idVec3 dir2, origin;
|
|
idMat3 axis;
|
|
shard_t *neighbour;
|
|
|
|
// don't display decals on dropped shards
|
|
shard->decals.DeleteContents( true );
|
|
|
|
// remove neighbour pointers of neighbours pointing to this shard
|
|
for ( i = 0; i < shard->neighbours.Num(); i++ ) {
|
|
neighbour = shard->neighbours[i];
|
|
for ( j = 0; j < neighbour->neighbours.Num(); j++ ) {
|
|
if ( neighbour->neighbours[j] == shard ) {
|
|
neighbour->neighbours.RemoveIndex( j );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// remove neighbour pointers
|
|
shard->neighbours.Clear();
|
|
|
|
// remove the clip model from the static physics object
|
|
clipModelId = shard->clipModel->GetId();
|
|
physicsObj.SetClipModel( NULL, 1.0f, clipModelId, false );
|
|
|
|
origin = shard->clipModel->GetOrigin();
|
|
axis = shard->clipModel->GetAxis();
|
|
|
|
// set the dropped time for fading
|
|
shard->droppedTime = time;
|
|
|
|
dir2 = origin - point;
|
|
dist = dir2.Normalize();
|
|
f = dist > maxShatterRadius ? 1.0f : idMath::Sqrt( idMath::Fabs( dist - minShatterRadius ) ) * ( 1.0f / idMath::Sqrt( idMath::Fabs( maxShatterRadius - minShatterRadius ) ) );
|
|
|
|
// setup the physics
|
|
shard->physicsObj.SetSelf( this );
|
|
shard->physicsObj.SetClipModel( shard->clipModel, density );
|
|
shard->physicsObj.SetMass( shardMass );
|
|
shard->physicsObj.SetOrigin( origin );
|
|
shard->physicsObj.SetAxis( axis );
|
|
shard->physicsObj.SetBouncyness( bouncyness );
|
|
shard->physicsObj.SetFriction( 0.6f, 0.6f, friction );
|
|
shard->physicsObj.SetGravity( gameLocal.GetGravity() );
|
|
shard->physicsObj.SetContents( CONTENTS_RENDERMODEL );
|
|
shard->physicsObj.SetClipMask( MASK_SOLID | CONTENTS_MOVEABLECLIP );
|
|
shard->physicsObj.ApplyImpulse( 0, origin, impulse * linearVelocityScale * dir );
|
|
shard->physicsObj.SetAngularVelocity( dir.Cross( dir2 ) * ( f * angularVelocityScale ) );
|
|
|
|
shard->clipModel->SetId( clipModelId );
|
|
|
|
BecomeActive( TH_PHYSICS );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::Shatter
|
|
================
|
|
*/
|
|
void idBrittleFracture::Shatter( const idVec3 &point, const idVec3 &impulse, const int time ) {
|
|
int i;
|
|
idVec3 dir;
|
|
shard_t *shard;
|
|
float m;
|
|
|
|
if ( common->IsServer() ) {
|
|
idBitMsg msg;
|
|
byte msgBuf[MAX_EVENT_PARAM_SIZE];
|
|
|
|
msg.InitWrite( msgBuf, sizeof( msgBuf ) );
|
|
msg.BeginWriting();
|
|
msg.WriteFloat( point[0] );
|
|
msg.WriteFloat( point[1] );
|
|
msg.WriteFloat( point[2] );
|
|
msg.WriteFloat( impulse[0] );
|
|
msg.WriteFloat( impulse[1] );
|
|
msg.WriteFloat( impulse[2] );
|
|
ServerSendEvent( EVENT_SHATTER, &msg, true );
|
|
}
|
|
|
|
// Store off the event so we can rebuilt the object if we reload a savegame
|
|
fractureEvent_s fractureEvent;
|
|
fractureEvent.eventType = EVENT_SHATTER;
|
|
fractureEvent.point = point;
|
|
fractureEvent.vector = impulse;
|
|
storedEvents.Append( fractureEvent );
|
|
|
|
if ( time > ( gameLocal.time - SHARD_ALIVE_TIME ) ) {
|
|
StartSound( "snd_shatter", SND_CHANNEL_ANY, 0, false, NULL );
|
|
}
|
|
|
|
if ( !IsBroken() ) {
|
|
Break();
|
|
}
|
|
|
|
if ( fxFracture.Length() ) {
|
|
idEntityFx::StartFx( fxFracture, &point, &GetPhysics()->GetAxis(), this, true );
|
|
}
|
|
|
|
dir = impulse;
|
|
m = dir.Normalize();
|
|
|
|
for ( i = 0; i < shards.Num(); i++ ) {
|
|
shard = shards[i];
|
|
|
|
if ( shard->droppedTime != -1 ) {
|
|
continue;
|
|
}
|
|
|
|
if ( ( shard->clipModel->GetOrigin() - point ).LengthSqr() > Square( maxShatterRadius ) ) {
|
|
continue;
|
|
}
|
|
|
|
DropShard( shard, point, dir, m, time );
|
|
}
|
|
|
|
DropFloatingIslands( point, impulse, time );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::DropFloatingIslands
|
|
================
|
|
*/
|
|
void idBrittleFracture::DropFloatingIslands( const idVec3 &point, const idVec3 &impulse, const int time ) {
|
|
int i, j, numIslands;
|
|
int queueStart, queueEnd;
|
|
shard_t *curShard, *nextShard, **queue;
|
|
bool touchesEdge;
|
|
idVec3 dir;
|
|
|
|
dir = impulse;
|
|
dir.Normalize();
|
|
|
|
numIslands = 0;
|
|
queue = (shard_t **) _alloca16( shards.Num() * sizeof(shard_t **) );
|
|
for ( i = 0; i < shards.Num(); i++ ) {
|
|
shards[i]->islandNum = 0;
|
|
}
|
|
|
|
for ( i = 0; i < shards.Num(); i++ ) {
|
|
|
|
if ( shards[i]->droppedTime != -1 ) {
|
|
continue;
|
|
}
|
|
|
|
if ( shards[i]->islandNum ) {
|
|
continue;
|
|
}
|
|
|
|
queueStart = 0;
|
|
queueEnd = 1;
|
|
queue[0] = shards[i];
|
|
shards[i]->islandNum = numIslands+1;
|
|
touchesEdge = false;
|
|
|
|
if ( shards[i]->atEdge ) {
|
|
touchesEdge = true;
|
|
}
|
|
|
|
for ( curShard = queue[queueStart]; queueStart < queueEnd; curShard = queue[++queueStart] ) {
|
|
|
|
for ( j = 0; j < curShard->neighbours.Num(); j++ ) {
|
|
|
|
nextShard = curShard->neighbours[j];
|
|
|
|
if ( nextShard->droppedTime != -1 ) {
|
|
continue;
|
|
}
|
|
|
|
if ( nextShard->islandNum ) {
|
|
continue;
|
|
}
|
|
|
|
queue[queueEnd++] = nextShard;
|
|
nextShard->islandNum = numIslands+1;
|
|
|
|
if ( nextShard->atEdge ) {
|
|
touchesEdge = true;
|
|
}
|
|
}
|
|
}
|
|
numIslands++;
|
|
|
|
// if the island is not connected to the world at any edges
|
|
if ( !touchesEdge ) {
|
|
for ( j = 0; j < queueEnd; j++ ) {
|
|
DropShard( queue[j], point, dir, 0.0f, time );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::Break
|
|
================
|
|
*/
|
|
void idBrittleFracture::Break() {
|
|
fl.takedamage = false;
|
|
physicsObj.SetContents( CONTENTS_RENDERMODEL | CONTENTS_TRIGGER );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::IsBroken
|
|
================
|
|
*/
|
|
bool idBrittleFracture::IsBroken() const {
|
|
return ( fl.takedamage == false );
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::Killed
|
|
================
|
|
*/
|
|
void idBrittleFracture::Killed( idEntity *inflictor, idEntity *attacker, int damage, const idVec3 &dir, int location ) {
|
|
if ( !disableFracture ) {
|
|
ActivateTargets( this );
|
|
Break();
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
idBrittleFracture::AddDamageEffect
|
|
================
|
|
*/
|
|
void idBrittleFracture::AddDamageEffect( const trace_t &collision, const idVec3 &velocity, const char *damageDefName ) {
|
|
if ( !disableFracture ) {
|
|
ProjectDecal( collision.c.point, collision.c.normal, gameLocal.time, damageDefName );
|
|
}
|
|
}
|
|
|
|
static float fractureSplitTable[] = { 1365.123f, 5.324f, 1125.34f, 50.34f, 555.252f, 100.12f, 230.53f, 10000.87f, 10000.87f };
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/*
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================
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idBrittleFracture::Fracture_r
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================
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*/
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void idBrittleFracture::Fracture_r( idFixedWinding &w, idRandom2 & random ) {
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int i, j, bestPlane;
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float a, c, s, dist, bestDist;
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idVec3 origin;
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idPlane windingPlane, splitPlanes[2];
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idMat3 axis, axistemp;
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idFixedWinding back;
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idTraceModel trm;
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idClipModel *clipModel;
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while( 1 ) {
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origin = w.GetCenter();
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w.GetPlane( windingPlane );
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if ( w.GetArea() < maxShardArea ) {
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break;
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}
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// randomly create a split plane
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axis[2] = windingPlane.Normal();
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if ( isXraySurface ) {
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a = idMath::TWO_PI / 2.f;
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}
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else {
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a = random.RandomFloat() * idMath::TWO_PI;
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}
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c = cos( a );
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s = -sin( a );
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axis[2].NormalVectors( axistemp[0], axistemp[1] );
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axis[0] = axistemp[ 0 ] * c + axistemp[ 1 ] * s;
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axis[1] = axistemp[ 0 ] * s + axistemp[ 1 ] * -c;
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// get the best split plane
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bestDist = 0.0f;
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bestPlane = 0;
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for ( i = 0; i < 2; i++ ) {
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splitPlanes[i].SetNormal( axis[i] );
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splitPlanes[i].FitThroughPoint( origin );
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for ( j = 0; j < w.GetNumPoints(); j++ ) {
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dist = splitPlanes[i].Distance( w[j].ToVec3() );
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if ( dist > bestDist ) {
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bestDist = dist;
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bestPlane = i;
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}
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}
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}
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// split the winding
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if ( !w.Split( &back, splitPlanes[bestPlane] ) ) {
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break;
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}
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// recursively create shards for the back winding
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Fracture_r( back, random );
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}
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// translate the winding to it's center
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origin = w.GetCenter();
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for ( j = 0; j < w.GetNumPoints(); j++ ) {
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w[j].ToVec3() -= origin;
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}
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w.RemoveEqualPoints();
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trm.SetupPolygon( w );
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trm.Shrink( CM_CLIP_EPSILON );
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clipModel = new (TAG_PHYSICS) idClipModel( trm, false );
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physicsObj.SetClipModel( clipModel, 1.0f, shards.Num() );
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physicsObj.SetOrigin( GetPhysics()->GetOrigin() + origin, shards.Num() );
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physicsObj.SetAxis( GetPhysics()->GetAxis(), shards.Num() );
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AddShard( clipModel, w );
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}
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/*
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================
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CompareVec5
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================
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*/
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bool CompareVec5( const idVec5 & v0, const idVec5 & v1 ) {
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float dx = v0.x - v1.x;
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float dy = v0.y - v1.y;
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float dz = v0.z - v1.z;
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float ds = v0.s - v1.s;
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float dt = v0.t - v1.t;
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float d = ( dx * dx ) + ( dy * dy ) + ( dz * dz ) + ( ds * ds ) + ( dt + dt );
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return ( d == 0.0f );
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}
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/*
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================
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idBrittleFracture::CreateFractures
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================
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*/
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void idBrittleFracture::CreateFractures( const idRenderModel *renderModel ) {
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if ( !renderModel || renderModel->NumSurfaces() < 1 ) {
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return;
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}
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physicsObj.SetSelf( this );
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physicsObj.SetOrigin( GetPhysics()->GetOrigin(), 0 );
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physicsObj.SetAxis( GetPhysics()->GetAxis(), 0 );
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const modelSurface_t * surf = renderModel->Surface( 0 );
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material = surf->shader;
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idMat3 physAxis;
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physAxis = physicsObj.GetAxis();
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if ( isXraySurface ) {
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idFixedWinding w;
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for ( int i = 0; i < 4; i++ ) {
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const idDrawVert * v = &surf->geometry->verts[i];
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w.AddPoint( idVec5( v->xyz, v->GetTexCoord() ) );
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}
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idRandom2 random( entityNumber );
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Fracture_r( w , random );
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} else
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{
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const idDrawVert * verts = surf->geometry->verts;
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triIndex_t * indexes = surf->geometry->indexes;
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for ( int j = 0; j < surf->geometry->numIndexes; j += 3 ) {
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int i0 = indexes[ j + 0 ];
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int i1 = indexes[ j + 1 ];
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int i2 = indexes[ j + 2 ];
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idFixedWinding w;
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w.AddPoint( idVec5( verts[i2].xyz, verts[i2].GetTexCoord() ) );
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w.AddPoint( idVec5( verts[i1].xyz, verts[i1].GetTexCoord() ) );
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w.AddPoint( idVec5( verts[i0].xyz, verts[i0].GetTexCoord() ) );
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idPlane p1;
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w.GetPlane( p1 );
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for ( int k = j + 3; k < surf->geometry->numIndexes && ( w.GetNumPoints() + 1 < MAX_POINTS_ON_WINDING ); k += 3 ) {
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int i3 = indexes[ k + 0 ];
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int i4 = indexes[ k + 1 ];
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int i5 = indexes[ k + 2 ];
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idFixedWinding w2;
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w2.AddPoint( idVec5( verts[i5].xyz, verts[i5].GetTexCoord() ) );
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w2.AddPoint( idVec5( verts[i4].xyz, verts[i4].GetTexCoord() ) );
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w2.AddPoint( idVec5( verts[i3].xyz, verts[i3].GetTexCoord() ) );
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idPlane p2;
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w2.GetPlane( p2 );
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if ( p1 != p2 ) {
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break;
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}
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bool found = false;
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for ( int w1i = 0; w1i < w.GetNumPoints(); w1i++ ) {
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for ( int w2i = 0; w2i < w2.GetNumPoints(); w2i++ ) {
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if ( CompareVec5( w[w1i], w2[w2i] ) && CompareVec5( w[(w1i+1)%w.GetNumPoints()], w2[(w2i+2)%w2.GetNumPoints()] ) ) {
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w.InsertPoint( w2[(w2i+1)%w2.GetNumPoints()], (w1i+1)%w.GetNumPoints() );
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j = k;
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found = true;
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break;
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}
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}
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if ( found ) {
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break;
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}
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}
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if ( !found ) {
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break;
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}
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}
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idRandom2 random( entityNumber );
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Fracture_r( w, random );
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}
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}
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physicsObj.SetContents( material->GetContentFlags() );
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SetPhysics( &physicsObj );
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}
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/*
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================
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idBrittleFracture::FindNeighbours
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================
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*/
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void idBrittleFracture::FindNeighbours() {
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int i, j, k, l;
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idVec3 p1, p2, dir;
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idMat3 axis;
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idPlane plane[4];
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for ( i = 0; i < shards.Num(); i++ ) {
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shard_t *shard1 = shards[i];
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const idWinding &w1 = shard1->winding;
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const idVec3 &origin1 = shard1->clipModel->GetOrigin();
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const idMat3 &axis1 = shard1->clipModel->GetAxis();
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for ( k = 0; k < w1.GetNumPoints(); k++ ) {
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p1 = origin1 + w1[k].ToVec3() * axis1;
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p2 = origin1 + w1[(k+1)%w1.GetNumPoints()].ToVec3() * axis1;
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dir = p2 - p1;
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dir.Normalize();
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axis = dir.ToMat3();
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plane[0].SetNormal( dir );
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plane[0].FitThroughPoint( p1 );
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plane[1].SetNormal( -dir );
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plane[1].FitThroughPoint( p2 );
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plane[2].SetNormal( axis[1] );
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plane[2].FitThroughPoint( p1 );
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plane[3].SetNormal( axis[2] );
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plane[3].FitThroughPoint( p1 );
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for ( j = 0; j < shards.Num(); j++ ) {
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if ( i == j ) {
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continue;
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}
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shard_t *shard2 = shards[j];
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for ( l = 0; l < shard1->neighbours.Num(); l++ ) {
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if ( shard1->neighbours[l] == shard2 ) {
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break;
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}
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}
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if ( l < shard1->neighbours.Num() ) {
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continue;
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}
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const idWinding &w2 = shard2->winding;
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const idVec3 &origin2 = shard2->clipModel->GetOrigin();
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const idMat3 &axis2 = shard2->clipModel->GetAxis();
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for ( l = w2.GetNumPoints()-1; l >= 0; l-- ) {
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p1 = origin2 + w2[l].ToVec3() * axis2;
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p2 = origin2 + w2[(l-1+w2.GetNumPoints())%w2.GetNumPoints()].ToVec3() * axis2;
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if ( plane[0].Side( p2, 0.1f ) == SIDE_FRONT && plane[1].Side( p1, 0.1f ) == SIDE_FRONT ) {
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if ( plane[2].Side( p1, 0.1f ) == SIDE_ON && plane[3].Side( p1, 0.1f ) == SIDE_ON ) {
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if ( plane[2].Side( p2, 0.1f ) == SIDE_ON && plane[3].Side( p2, 0.1f ) == SIDE_ON ) {
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shard1->neighbours.Append( shard2 );
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shard1->edgeHasNeighbour[k] = true;
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shard2->neighbours.Append( shard1 );
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shard2->edgeHasNeighbour[(l-1+w2.GetNumPoints())%w2.GetNumPoints()] = true;
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break;
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}
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}
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}
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}
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}
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}
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for ( k = 0; k < w1.GetNumPoints(); k++ ) {
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if ( !shard1->edgeHasNeighbour[k] ) {
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break;
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}
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}
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if ( k < w1.GetNumPoints() ) {
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shard1->atEdge = true;
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} else {
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shard1->atEdge = false;
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}
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}
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}
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/*
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================
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idBrittleFracture::Event_Activate
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================
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*/
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void idBrittleFracture::Event_Activate( idEntity *activator ) {
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disableFracture = false;
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if ( health <= 0 ) {
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Break();
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}
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}
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/*
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================
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idBrittleFracture::Event_Touch
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================
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*/
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void idBrittleFracture::Event_Touch( idEntity *other, trace_t *trace ) {
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idVec3 point, impulse;
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// Let the server handle this, clients dont' predict it
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if ( common->IsClient() ) {
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return;
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}
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if ( !IsBroken() ) {
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return;
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}
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if ( trace->c.id < 0 || trace->c.id >= shards.Num() ) {
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return;
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}
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point = shards[trace->c.id]->clipModel->GetOrigin();
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impulse = other->GetPhysics()->GetLinearVelocity() * other->GetPhysics()->GetMass();
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Shatter( point, impulse, gameLocal.time );
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}
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/*
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================
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idBrittleFracture::ClientThink
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================
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*/
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void idBrittleFracture::ClientThink( const int curTime, const float fraction, const bool predict ) {
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// only think forward because the state is not synced through snapshots
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if ( !gameLocal.isNewFrame ) {
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return;
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}
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Think();
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}
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/*
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================
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idBrittleFracture::ClientPredictionThink
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================
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*/
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void idBrittleFracture::ClientPredictionThink() {
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// only think forward because the state is not synced through snapshots
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if ( !gameLocal.isNewFrame ) {
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return;
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}
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Think();
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}
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/*
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================
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idBrittleFracture::ClientReceiveEvent
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================
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*/
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bool idBrittleFracture::ClientReceiveEvent( int event, int time, const idBitMsg &msg ) {
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idVec3 point, dir;
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switch( event ) {
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case EVENT_PROJECT_DECAL: {
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point[0] = msg.ReadFloat();
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point[1] = msg.ReadFloat();
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point[2] = msg.ReadFloat();
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dir[0] = msg.ReadFloat();
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dir[1] = msg.ReadFloat();
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dir[2] = msg.ReadFloat();
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ProjectDecal( point, dir, time, NULL );
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return true;
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}
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case EVENT_SHATTER: {
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point[0] = msg.ReadFloat();
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point[1] = msg.ReadFloat();
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point[2] = msg.ReadFloat();
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dir[0] = msg.ReadFloat();
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dir[1] = msg.ReadFloat();
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dir[2] = msg.ReadFloat();
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Shatter( point, dir, time );
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return true;
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}
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default: {
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return idEntity::ClientReceiveEvent( event, time, msg );
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}
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}
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}
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