/*
============
idPush::ClipTranslationalPush
Try to push other entities by moving the given entity.
============
*/
float idPush::ClipTranslationalPush( trace_t &results, idEntity *pusher, const int flags,
const idVec3 &newOrigin, const idVec3 &translation ) {
int i, listedEntities, res;
idEntity *check, *entityList[ MAX_GENTITIES ];
idBounds bounds, pushBounds;
idVec3 clipMove, clipOrigin, oldOrigin, dir, impulse;
trace_t pushResults;
bool wasEnabled;
float totalMass;
idClipModel *clipModel;
clipModel = pusher->GetPhysics()->GetClipModel();
totalMass = 0.0f;
results.fraction = 1.0f;
results.endpos = newOrigin;
results.endAxis = clipModel->GetAxis();
memset( &results.c, 0, sizeof( results.c ) );
if ( translation == vec3_origin ) {
return totalMass;
}
dir = translation;
dir.Normalize();
dir.z += 1.0f;
dir *= 10.0f;
// get bounds for the whole movement
bounds = clipModel->GetBounds();
if ( bounds[0].x >= bounds[1].x ) {
return totalMass;
}
pushBounds.FromBoundsTranslation( bounds, clipModel->GetOrigin(), clipModel->GetAxis(), translation );
wasEnabled = clipModel->IsEnabled();
// make sure we don't get the pushing clip model in the list
clipModel->Disable();
listedEntities = gameLocal.clip.EntitiesTouchingBounds( pushBounds, -1, entityList, MAX_GENTITIES );
// discard entities we cannot or should not push
listedEntities = DiscardEntities( entityList, listedEntities, flags, pusher );
if ( flags & PUSHFL_CLIP ) {
// can only clip movement of a trace model
assert( clipModel->IsTraceModel() );
// disable to be pushed entities for collision detection
for ( i = 0; i < listedEntities; i++ ) {
entityList[i]->GetPhysics()->DisableClip();
}
gameLocal.clip.Translation( results, clipModel->GetOrigin(), clipModel->GetOrigin() + translation, clipModel, clipModel->GetAxis(), pusher->GetPhysics()->GetClipMask(), NULL );
// enable to be pushed entities for collision detection
for ( i = 0; i < listedEntities; i++ ) {
entityList[i]->GetPhysics()->EnableClip();
}
if ( results.fraction == 0.0f ) {
if ( wasEnabled ) {
clipModel->Enable();
}
return totalMass;
}
clipMove = results.endpos - clipModel->GetOrigin();
clipOrigin = results.endpos;
}
else {
clipMove = translation;
clipOrigin = newOrigin;
}
// we have to enable the clip model because we use it during pushing
clipModel->Enable();
// save pusher old position
oldOrigin = clipModel->GetOrigin();
// try to push the entities
for ( i = 0; i < listedEntities; i++ ) {
check = entityList[ i ];
idPhysics *physics = check->GetPhysics();
// disable the entity for collision detection
physics->DisableClip();
res = TryTranslatePushEntity( pushResults, check, clipModel, flags, clipOrigin, clipMove );
// enable the entity for collision detection
physics->EnableClip();
// if the entity is pushed
if ( res == PUSH_OK ) {
// set the pusher in the translated position
clipModel->Link( gameLocal.clip, clipModel->GetEntity(), clipModel->GetId(), newOrigin, clipModel->GetAxis() );
// the entity might be pushed off the ground
physics->EvaluateContacts();
// put pusher back in old position
clipModel->Link( gameLocal.clip, clipModel->GetEntity(), clipModel->GetId(), oldOrigin, clipModel->GetAxis() );
// wake up this object
if ( flags & PUSHFL_APPLYIMPULSE ) {
impulse = physics->GetMass() * dir;
} else {
impulse.Zero();
}
check->ApplyImpulse( clipModel->GetEntity(), clipModel->GetId(), clipModel->GetOrigin(), impulse );
// add mass of pushed entity
totalMass += physics->GetMass();
}
// if the entity is not blocking
if ( res != PUSH_BLOCKED ) {
continue;
}
// if the blocking entity is a projectile
if ( check->IsType( idProjectile::Type ) ) {
check->ProcessEvent( &EV_Explode );
continue;
}
// if blocking entities should be crushed
if ( flags & PUSHFL_CRUSH ) {
check->Damage( clipModel->GetEntity(), clipModel->GetEntity(), vec3_origin, "damage_crush", 1.0f, CLIPMODEL_ID_TO_JOINT_HANDLE( pushResults.c.id ) );
continue;
}
// if the entity is an active articulated figure and gibs
if ( check->IsType( idAFEntity_Base::Type ) && check->spawnArgs.GetBool( "gib" ) ) {
if ( static_cast<idAFEntity_Base *>(check)->IsActiveAF() ) {
check->ProcessEvent( &EV_Gib, "damage_Gib" );
}
}
// if the entity is a moveable item and gibs
if ( check->IsType( idMoveableItem::Type ) && check->spawnArgs.GetBool( "gib" ) ) {
check->ProcessEvent( &EV_Gib, "damage_Gib" );
}
// blocked
results = pushResults;
results.fraction = 0.0f;
results.endAxis = clipModel->GetAxis();
results.endpos = clipModel->GetOrigin();
results.c.entityNum = check->entityNumber;
results.c.id = 0;
if ( !wasEnabled ) {
clipModel->Disable();
}
return totalMass;
}
if ( !wasEnabled ) {
clipModel->Disable();
}
return totalMass;
}
/*
============
idPush::ClipTranslationalPush
Try to push other entities by moving the given entity.
============
*/
float idPush::ClipTranslationalPush( trace_t &results, idEntity *pusher, const int flags,
const idVec3 &newOrigin, const idVec3 &translation, idClipModel * clipModel ) {
int i, listedEntities, res;
idEntity *check, *entityList[ MAX_GENTITIES ];
idBounds bounds, pushBounds;
idVec3 clipMove, clipOrigin, oldOrigin, dir, impulse;
trace_t pushResults;
bool wasEnabled;
float totalMass;
totalMass = 0.0f;
results.fraction = 1.0f;
results.endpos = newOrigin;
results.endAxis = clipModel->GetAxis();
memset( &results.c, 0, sizeof( results.c ) );
if ( translation == vec3_origin ) {
return totalMass;
}
dir = translation;
dir.Normalize();
dir.z += 1.0f;
dir *= 10.0f;
// get bounds for the whole movement
bounds = clipModel->GetBounds();
if ( bounds[0].x >= bounds[1].x ) {
return totalMass;
}
pushBounds.FromBoundsTranslation( bounds, clipModel->GetOrigin(), clipModel->GetAxis(), translation );
wasEnabled = clipModel->GetContents() != 0;
// make sure we don't get the pushing clip model in the list
clipModel->Disable();
listedEntities = gameLocal.clip.EntitiesTouchingBounds( pushBounds, -1, entityList, MAX_GENTITIES );
// discard entities we cannot or should not push
listedEntities = DiscardEntities( entityList, listedEntities, flags, pusher, clipModel->GetRealContents() );
if ( flags & PUSHFL_CLIP ) {
// can only clip movement of a trace model
assert( clipModel->IsTraceModel() );
// disable to be pushed entities for collision detection
for ( i = 0; i < listedEntities; i++ ) {
entityList[ i ]->DisableClip( false );
}
gameLocal.clip.Translation( CLIP_DEBUG_PARMS results, clipModel->GetOrigin(), clipModel->GetOrigin() + translation, clipModel, clipModel->GetAxis(), pusher->GetPhysics()->GetClipMask(), NULL );
// enable to be pushed entities for collision detection
for ( i = 0; i < listedEntities; i++ ) {
entityList[ i ]->EnableClip();
}
if ( results.fraction == 0.0f ) {
if ( wasEnabled ) {
clipModel->Enable();
}
return totalMass;
}
clipMove = results.endpos - clipModel->GetOrigin();
clipOrigin = results.endpos;
}
else {
clipMove = translation;
clipOrigin = newOrigin;
}
// we have to enable the clip model because we use it during pushing
clipModel->Enable();
// save pusher old position
oldOrigin = clipModel->GetOrigin();
// try to push the entities
for ( i = 0; i < listedEntities; i++ ) {
check = entityList[ i ];
idPhysics *physics = check->GetPhysics();
// disable the entity for collision detection
check->DisableClip( false );
res = TryTranslatePushEntity( pushResults, check, clipModel, flags, clipOrigin, clipMove );
// enable the entity for collision detection
check->EnableClip();
// if the entity is pushed
if ( res == PUSH_OK ) {
// set the pusher in the translated position
clipModel->Link( gameLocal.clip, clipModel->GetEntity(), clipModel->GetId(), newOrigin, clipModel->GetAxis() );
// the entity might be pushed off the ground
physics->EvaluateContacts( CLIP_DEBUG_PARMS_ONLY );
// put pusher back in old position
clipModel->Link( gameLocal.clip, clipModel->GetEntity(), clipModel->GetId(), oldOrigin, clipModel->GetAxis() );
// wake up this object
if ( flags & PUSHFL_APPLYIMPULSE ) {
impulse = /*physics->GetMass() **/ dir;
} else {
impulse.Zero();
}
check->ApplyImpulse( clipModel->GetEntity(), clipModel->GetId(), clipModel->GetOrigin(), impulse );
// add mass of pushed entity
totalMass += physics->GetMass();
}
// if the entity is not blocking
if ( res != PUSH_BLOCKED ) {
continue;
}
// if blocking entities should be crushed
if ( flags & PUSHFL_CRUSH ) {
check->Damage( clipModel->GetEntity(), clipModel->GetEntity(), vec3_origin, DAMAGE_FOR_NAME( "damage_crush" ), 1.0f, &pushResults );
continue;
}
// blocked
results = pushResults;
results.fraction = 0.0f;
results.endAxis = clipModel->GetAxis();
results.endpos = clipModel->GetOrigin();
results.c.entityNum = check->entityNumber;
results.c.id = 0;
if ( !wasEnabled ) {
clipModel->Disable();
}
return totalMass;
}
if ( !wasEnabled ) {
clipModel->Disable();
}
return totalMass;
}
