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Torque3D/Engine/source/T3D/projectile.cpp
marauder2k7 1949ff9d7b projectile
2025-06-19 16:29:59 +01:00

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//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------
//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~~//
// Arcane-FX for MIT Licensed Open Source version of Torque 3D from GarageGames
// Copyright (C) 2015 Faust Logic, Inc.
//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~~//
#include "platform/platform.h"
#include "T3D/projectile.h"
#include "scene/sceneRenderState.h"
#include "scene/sceneManager.h"
#include "lighting/lightInfo.h"
#include "lighting/lightManager.h"
#include "console/consoleTypes.h"
#include "console/typeValidators.h"
#include "core/resourceManager.h"
#include "core/stream/bitStream.h"
#include "T3D/fx/explosion.h"
#include "T3D/shapeBase.h"
#include "ts/tsShapeInstance.h"
#include "sfx/sfxTrack.h"
#include "sfx/sfxSource.h"
#include "sfx/sfxSystem.h"
#include "sfx/sfxTypes.h"
#include "math/mathUtils.h"
#include "math/mathIO.h"
#include "sim/netConnection.h"
#include "T3D/fx/particleEmitter.h"
#include "T3D/fx/splash.h"
#include "T3D/physics/physicsPlugin.h"
#include "T3D/physics/physicsWorld.h"
#include "gfx/gfxTransformSaver.h"
#include "T3D/containerQuery.h"
#include "T3D/decal/decalManager.h"
#include "T3D/decal/decalData.h"
#include "T3D/lightDescription.h"
#include "console/engineAPI.h"
#include "T3D/rigidShape.h"
IMPLEMENT_CO_DATABLOCK_V1(ProjectileData);
ConsoleDocClass( ProjectileData,
"@brief Stores properties for an individual projectile type.\n"
"@tsexample\n"
"datablock ProjectileData(GrenadeLauncherProjectile)\n"
"{\n"
" projectileShapeName = \"art/shapes/weapons/SwarmGun/rocket.dts\";\n"
"directDamage = 30;\n"
"radiusDamage = 30;\n"
"damageRadius = 5;\n"
"areaImpulse = 2000;\n"
"explosion = GrenadeLauncherExplosion;\n"
"waterExplosion = GrenadeLauncherWaterExplosion;\n"
"decal = ScorchRXDecal;\n"
"splash = GrenadeSplash;\n"
"particleEmitter = GrenadeProjSmokeTrailEmitter;\n"
"particleWaterEmitter = GrenadeTrailWaterEmitter;\n"
"muzzleVelocity = 30;\n"
"velInheritFactor = 0.3;\n"
"armingDelay = 2000;\n"
"lifetime = 10000;\n"
"fadeDelay = 4500;\n"
"bounceElasticity = 0.4;\n"
"bounceFriction = 0.3;\n"
"isBallistic = true;\n"
"gravityMod = 0.9;\n"
"lightDesc = GrenadeLauncherLightDesc;\n"
"damageType = \"GrenadeDamage\";\n"
"};\n"
"@endtsexample\n"
"@ingroup gameObjects\n"
);
IMPLEMENT_CO_NETOBJECT_V1(Projectile);
ConsoleDocClass( Projectile,
"@brief Base projectile class. Uses the ProjectileData class for properties of individual projectiles.\n"
"@ingroup gameObjects\n"
);
IMPLEMENT_CALLBACK( ProjectileData, onExplode, void, ( Projectile* proj, Point3F pos, F32 fade ),
( proj, pos, fade ),
"@brief Called when a projectile explodes.\n\n"
"This function is only called on server objects.\n"
"@param proj The exploding projectile.\n"
"@param pos The position of the explosion.\n"
"@param fade The current fadeValue of the projectile, affects its visibility.\n\n"
"@see Projectile\n"
);
IMPLEMENT_CALLBACK( ProjectileData, onCollision, void, ( Projectile* proj, SceneObject* col, F32 fade, Point3F pos, Point3F normal ),
( proj, col, fade, pos, normal ),
"@brief Called when a projectile collides with another object.\n\n"
"This function is only called on server objects."
"@param proj The projectile colliding with SceneObject col.\n"
"@param col The SceneObject hit by the projectile.\n"
"@param fade The current fadeValue of the projectile, affects its visibility.\n"
"@param pos The position of the collision.\n"
"@param normal The normal of the collision.\n"
"@see Projectile\n"
);
const U32 Projectile::csmStaticCollisionMask = TerrainObjectType | StaticShapeObjectType;
const U32 Projectile::csmDynamicCollisionMask = PlayerObjectType | VehicleObjectType;
const U32 Projectile::csmDamageableMask = Projectile::csmDynamicCollisionMask;
U32 Projectile::smProjectileWarpTicks = 5;
//--------------------------------------------------------------------------
//
ProjectileData::ProjectileData()
{
mProjectileShapeAsset.registerRefreshNotify(this);
INIT_ASSET(ProjectileSound);
explosion = NULL;
explosionId = 0;
waterExplosion = NULL;
waterExplosionId = 0;
//hasLight = false;
//lightRadius = 1;
//lightColor.set(1, 1, 1);
lightDesc = NULL;
faceViewer = false;
scale.set( 1.0f, 1.0f, 1.0f );
isBallistic = false;
mExplodeOnTmeout = false;
velInheritFactor = 1.0f;
muzzleVelocity = 50;
impactForce = 0.0f;
armingDelay = 0;
fadeDelay = 20000 / 32;
lifetime = 20000 / 32;
activateSeq = -1;
maintainSeq = -1;
gravityMod = 1.0;
bounceElasticity = 0.999f;
bounceFriction = 0.3f;
particleEmitter = NULL;
particleEmitterId = 0;
particleWaterEmitter = NULL;
particleWaterEmitterId = 0;
splash = NULL;
splashId = 0;
decal = NULL;
decalId = 0;
lightDesc = NULL;
lightDescId = 0;
}
ProjectileData::ProjectileData(const ProjectileData& other, bool temp_clone) : GameBaseData(other, temp_clone)
{
faceViewer = other.faceViewer; // -- always set to false
scale = other.scale;
velInheritFactor = other.velInheritFactor;
muzzleVelocity = other.muzzleVelocity;
impactForce = other.impactForce;
isBallistic = other.isBallistic;
mExplodeOnTmeout = other.mExplodeOnTmeout;
bounceElasticity = other.bounceElasticity;
bounceFriction = other.bounceFriction;
gravityMod = other.gravityMod;
lifetime = other.lifetime;
armingDelay = other.armingDelay;
fadeDelay = other.fadeDelay;
explosion = other.explosion;
explosionId = other.explosionId; // -- for pack/unpack of explosion ptr
waterExplosion = other.waterExplosion;
waterExplosionId = other.waterExplosionId; // -- for pack/unpack of waterExplosion ptr
splash = other.splash;
splashId = other.splashId; // -- for pack/unpack of splash ptr
decal = other.decal;
decalId = other.decalId; // -- for pack/unpack of decal ptr
CLONE_ASSET(ProjectileSound);
lightDesc = other.lightDesc;
lightDescId = other.lightDescId; // -- for pack/unpack of lightDesc ptr
mProjectileShapeAsset = other.mProjectileShapeAsset;// -- TSShape loads using mProjectileShapeName
activateSeq = other.activateSeq; // -- from projectileShape sequence "activate"
maintainSeq = other.maintainSeq; // -- from projectileShape sequence "maintain"
particleEmitter = other.particleEmitter;
particleEmitterId = other.particleEmitterId; // -- for pack/unpack of particleEmitter ptr
particleWaterEmitter = other.particleWaterEmitter;
particleWaterEmitterId = other.particleWaterEmitterId; // -- for pack/unpack of particleWaterEmitter ptr
}
//--------------------------------------------------------------------------
void ProjectileData::initPersistFields()
{
docsURL;
addGroup("Shapes");
INITPERSISTFIELD_SHAPEASSET_REFACTOR(ProjectileShape, ProjectileData, "@brief The model of the projectile.\n\n");
addField("scale", TypePoint3F, Offset(scale, ProjectileData),
"@brief Scale to apply to the projectile's size.\n\n"
"@note This is applied after SceneObject::scale\n");
endGroup("Shapes");
addGroup("Particle Effects");
addField("particleEmitter", TYPEID< ParticleEmitterData >(), Offset(particleEmitter, ProjectileData),
"@brief Particle emitter datablock used to generate particles while the projectile is outside of water.\n\n"
"@note If datablocks are defined for both particleEmitter and particleWaterEmitter, both effects will play "
"as the projectile enters or leaves water.\n\n"
"@see particleWaterEmitter\n");
addField("particleWaterEmitter", TYPEID< ParticleEmitterData >(), Offset(particleWaterEmitter, ProjectileData),
"@brief Particle emitter datablock used to generate particles while the projectile is submerged in water.\n\n"
"@note If datablocks are defined for both particleWaterEmitter and particleEmitter , both effects will play "
"as the projectile enters or leaves water.\n\n"
"@see particleEmitter\n");
addField("explosion", TYPEID< ExplosionData >(), Offset(explosion, ProjectileData),
"@brief Explosion datablock used when the projectile explodes outside of water.\n\n");
addField("waterExplosion", TYPEID< ExplosionData >(), Offset(waterExplosion, ProjectileData),
"@brief Explosion datablock used when the projectile explodes underwater.\n\n");
addField("splash", TYPEID< SplashData >(), Offset(splash, ProjectileData),
"@brief Splash datablock used to create splash effects as the projectile enters or leaves water\n\n");
addField("decal", TYPEID< DecalData >(), Offset(decal, ProjectileData),
"@brief Decal datablock used for decals placed at projectile explosion points.\n\n");
endGroup("Particle Effects");
addGroup("Sounds");
INITPERSISTFIELD_SOUNDASSET(ProjectileSound, ProjectileData, "The sound for the projectile.");
endGroup("Sounds");
addGroup("Light Emitter");
addField("lightDesc", TYPEID< LightDescription >(), Offset(lightDesc, ProjectileData),
"@brief LightDescription datablock used for lights attached to the projectile.\n\n");
endGroup("Light Emitter");
addGroup("Physics");
addProtectedFieldV("lifetime", TypeRangedS32, Offset(lifetime, ProjectileData), &setLifetime, &getScaledValue, &CommonValidators::NaturalNumber,
"@brief Amount of time, in milliseconds, before the projectile is removed from the simulation.\n\n"
"Used with fadeDelay to determine the transparency of the projectile at a given time. "
"A projectile may exist up to a maximum of 131040ms (or 4095 ticks) as defined by Projectile::MaxLivingTicks in the source code."
"@see fadeDelay");
addProtectedFieldV("armingDelay", TypeRangedS32, Offset(armingDelay, ProjectileData), &setArmingDelay, &getScaledValue, &CommonValidators::PositiveInt,
"@brief Amount of time, in milliseconds, before the projectile will cause damage or explode on impact.\n\n"
"This value must be equal to or less than the projectile's lifetime.\n\n"
"@see lifetime");
addProtectedFieldV("fadeDelay", TypeRangedS32, Offset(fadeDelay, ProjectileData), &setFadeDelay, &getScaledValue, &CommonValidators::NaturalNumber,
"@brief Amount of time, in milliseconds, before the projectile begins to fade out.\n\n"
"This value must be smaller than the projectile's lifetime to have an affect.");
addField("explodeOnTmeout", TypeBool, Offset(mExplodeOnTmeout, ProjectileData),
"@brief Detetmines if the projectile should explode on timeout");
addField("isBallistic", TypeBool, Offset(isBallistic, ProjectileData),
"@brief Detetmines if the projectile should be affected by gravity and whether or not "
"it bounces before exploding.\n\n");
addFieldV("velInheritFactor", TypeRangedF32, Offset(velInheritFactor, ProjectileData), &CommonValidators::F32Range,
"@brief Amount of velocity the projectile recieves from the source that created it.\n\n"
"Use an amount between 0 and 1 for the best effect. "
"This value is never modified by the engine.\n"
"@note This value by default is not transmitted between the server and the client.");
addFieldV("muzzleVelocity", TypeRangedF32, Offset(muzzleVelocity, ProjectileData), &CommonValidators::PositiveFloat,
"@brief Amount of velocity the projectile recieves from the \"muzzle\" of the gun.\n\n"
"Used with velInheritFactor to determine the initial velocity of the projectile. "
"This value is never modified by the engine.\n\n"
"@note This value by default is not transmitted between the server and the client.\n\n"
"@see velInheritFactor");
addFieldV("impactForce", TypeRangedF32, Offset(impactForce, ProjectileData), &CommonValidators::PositiveFloat);
addFieldV("bounceElasticity", TypeRangedF32, Offset(bounceElasticity, ProjectileData), &CommonValidators::PositiveFloat,
"@brief Influences post-bounce velocity of a projectile that does not explode on contact.\n\n"
"Scales the velocity from a bounce after friction is taken into account. "
"A value of 1.0 will leave it's velocity unchanged while values greater than 1.0 will increase it.\n");
addFieldV("bounceFriction", TypeRangedF32, Offset(bounceFriction, ProjectileData), &CommonValidators::PositiveFloat,
"@brief Factor to reduce post-bounce velocity of a projectile that does not explode on contact.\n\n"
"Reduces bounce velocity by this factor and a multiple of the tangent to impact. "
"Used to simulate surface friction.\n");
addFieldV("gravityMod", TypeRangedF32, Offset(gravityMod, ProjectileData), &CommonValidators::F32Range,
"@brief Scales the influence of gravity on the projectile.\n\n"
"The larger this value is, the more that gravity will affect the projectile. "
"A value of 1.0 will assume \"normal\" influence upon it.\n"
"The magnitude of gravity is assumed to be 9.81 m/s/s\n\n"
"@note ProjectileData::isBallistic must be true for this to have any affect.");
endGroup("Physics");
Parent::initPersistFields();
// disallow some field substitutions
onlyKeepClearSubstitutions("explosion");
onlyKeepClearSubstitutions("particleEmitter");
onlyKeepClearSubstitutions("particleWaterEmitter");
onlyKeepClearSubstitutions("sound");
onlyKeepClearSubstitutions("splash");
onlyKeepClearSubstitutions("waterExplosion");
}
//--------------------------------------------------------------------------
bool ProjectileData::onAdd()
{
if(!Parent::onAdd())
return false;
return true;
}
bool ProjectileData::preload(bool server, String &errorStr)
{
if (Parent::preload(server, errorStr) == false)
return false;
if( !server )
{
if (!particleEmitter && particleEmitterId != 0)
if (Sim::findObject(particleEmitterId, particleEmitter) == false)
Con::errorf(ConsoleLogEntry::General, "ProjectileData::preload: Invalid packet, bad datablockId(particleEmitter): %d", particleEmitterId);
if (!particleWaterEmitter && particleWaterEmitterId != 0)
if (Sim::findObject(particleWaterEmitterId, particleWaterEmitter) == false)
Con::errorf(ConsoleLogEntry::General, "ProjectileData::preload: Invalid packet, bad datablockId(particleWaterEmitter): %d", particleWaterEmitterId);
if (!explosion && explosionId != 0)
if (Sim::findObject(explosionId, explosion) == false)
Con::errorf(ConsoleLogEntry::General, "ProjectileData::preload: Invalid packet, bad datablockId(explosion): %d", explosionId);
if (!waterExplosion && waterExplosionId != 0)
if (Sim::findObject(waterExplosionId, waterExplosion) == false)
Con::errorf(ConsoleLogEntry::General, "ProjectileData::preload: Invalid packet, bad datablockId(waterExplosion): %d", waterExplosionId);
if (!splash && splashId != 0)
if (Sim::findObject(splashId, splash) == false)
Con::errorf(ConsoleLogEntry::General, "ProjectileData::preload: Invalid packet, bad datablockId(splash): %d", splashId);
if (!decal && decalId != 0)
if (Sim::findObject(decalId, decal) == false)
Con::errorf(ConsoleLogEntry::General, "ProjectileData::preload: Invalid packet, bad datablockId(decal): %d", decalId);
if (!isProjectileSoundValid())
{
//return false; -TODO: trigger asset download
}
if (!lightDesc && lightDescId != 0)
if (Sim::findObject(lightDescId, lightDesc) == false)
Con::errorf(ConsoleLogEntry::General, "ProjectileData::preload: Invalid packet, bad datablockid(lightDesc): %d", lightDescId);
}
if (mProjectileShapeAsset.notNull())
{
//If we've got a shapeAsset assigned for our projectile, but we failed to load the shape data itself, report the error
if (!getProjectileShape())
{
errorStr = String::ToString("ProjectileData::load: Couldn't load shape \"%s\"", _getProjectileShapeAssetId());
return false;
}
else
{
activateSeq = getProjectileShape()->findSequence("activate");
maintainSeq = getProjectileShape()->findSequence("maintain");
TSShapeInstance* pDummy = new TSShapeInstance(getProjectileShape(), !server);
delete pDummy;
}
}
return true;
}
//--------------------------------------------------------------------------
void ProjectileData::packData(BitStream* stream)
{
Parent::packData(stream);
PACKDATA_ASSET_REFACTOR(ProjectileShape);
stream->writeFlag(faceViewer);
if(stream->writeFlag(scale.x != 1 || scale.y != 1 || scale.z != 1))
{
stream->write(scale.x);
stream->write(scale.y);
stream->write(scale.z);
}
if (stream->writeFlag(particleEmitter != NULL))
stream->writeRangedU32(particleEmitter->getId(), DataBlockObjectIdFirst,
DataBlockObjectIdLast);
if (stream->writeFlag(particleWaterEmitter != NULL))
stream->writeRangedU32(particleWaterEmitter->getId(), DataBlockObjectIdFirst,
DataBlockObjectIdLast);
if (stream->writeFlag(explosion != NULL))
stream->writeRangedU32(explosion->getId(), DataBlockObjectIdFirst,
DataBlockObjectIdLast);
if (stream->writeFlag(waterExplosion != NULL))
stream->writeRangedU32(waterExplosion->getId(), DataBlockObjectIdFirst,
DataBlockObjectIdLast);
if (stream->writeFlag(splash != NULL))
stream->writeRangedU32(splash->getId(), DataBlockObjectIdFirst,
DataBlockObjectIdLast);
if (stream->writeFlag(decal != NULL))
stream->writeRangedU32(decal->getId(), DataBlockObjectIdFirst,
DataBlockObjectIdLast);
PACKDATA_ASSET(ProjectileSound);
if ( stream->writeFlag(lightDesc != NULL))
stream->writeRangedU32(lightDesc->getId(), DataBlockObjectIdFirst,
DataBlockObjectIdLast);
stream->write(impactForce);
// stream->writeRangedU32(lifetime, 0, Projectile::MaxLivingTicks);
// stream->writeRangedU32(armingDelay, 0, Projectile::MaxLivingTicks);
// stream->writeRangedU32(fadeDelay, 0, Projectile::MaxLivingTicks);
// [tom, 3/21/2007] Changing these to write all 32 bits as the previous
// code limited these to a max value of 4095.
stream->write(lifetime);
stream->write(armingDelay);
stream->write(fadeDelay);
stream->writeFlag(mExplodeOnTmeout);
if(stream->writeFlag(isBallistic))
{
stream->write(gravityMod);
stream->write(bounceElasticity);
stream->write(bounceFriction);
}
}
void ProjectileData::unpackData(BitStream* stream)
{
Parent::unpackData(stream);
UNPACKDATA_ASSET_REFACTOR(ProjectileShape);
faceViewer = stream->readFlag();
if(stream->readFlag())
{
stream->read(&scale.x);
stream->read(&scale.y);
stream->read(&scale.z);
}
else
scale.set(1,1,1);
if (stream->readFlag())
particleEmitterId = stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast);
if (stream->readFlag())
particleWaterEmitterId = stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast);
if (stream->readFlag())
explosionId = stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast);
if (stream->readFlag())
waterExplosionId = stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast);
if (stream->readFlag())
splashId = stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast);
if (stream->readFlag())
decalId = stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast);
UNPACKDATA_ASSET(ProjectileSound);
if (stream->readFlag())
lightDescId = stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast);
// [tom, 3/21/2007] See comment in packData()
// lifetime = stream->readRangedU32(0, Projectile::MaxLivingTicks);
// armingDelay = stream->readRangedU32(0, Projectile::MaxLivingTicks);
// fadeDelay = stream->readRangedU32(0, Projectile::MaxLivingTicks);
stream->read(&impactForce);
stream->read(&lifetime);
stream->read(&armingDelay);
stream->read(&fadeDelay);
mExplodeOnTmeout = stream->readFlag();
isBallistic = stream->readFlag();
if(isBallistic)
{
stream->read(&gravityMod);
stream->read(&bounceElasticity);
stream->read(&bounceFriction);
}
}
bool ProjectileData::setLifetime( void *obj, const char *index, const char *data )
{
S32 value = dAtoi(data);
value = scaleValue(value);
ProjectileData *object = static_cast<ProjectileData*>(obj);
object->lifetime = value;
return false;
}
bool ProjectileData::setArmingDelay( void *obj, const char *index, const char *data )
{
S32 value = dAtoi(data);
value = scaleValue(value);
ProjectileData *object = static_cast<ProjectileData*>(obj);
object->armingDelay = value;
return false;
}
bool ProjectileData::setFadeDelay( void *obj, const char *index, const char *data )
{
S32 value = dAtoi(data);
value = scaleValue(value);
ProjectileData *object = static_cast<ProjectileData*>(obj);
object->fadeDelay = value;
return false;
}
const char *ProjectileData::getScaledValue( void *obj, const char *data)
{
S32 value = dAtoi(data);
value = scaleValue(value, false);
String stringData = String::ToString(value);
char *strBuffer = Con::getReturnBuffer(stringData.size());
dMemcpy( strBuffer, stringData, stringData.size() );
return strBuffer;
}
S32 ProjectileData::scaleValue( S32 value, bool down )
{
S32 minV = 0;
S32 maxV = Projectile::MaxLivingTicks;
// scale down to ticks before we validate
if( down )
value /= TickMs;
if(value < minV || value > maxV)
{
Con::errorf("ProjectileData::scaleValue(S32 value = %d, bool down = %b) - Scaled value must be between %d and %d", value, down, minV, maxV);
if(value < minV)
value = minV;
else if(value > maxV)
value = maxV;
}
// scale up from ticks after we validate
if( !down )
value *= TickMs;
return value;
}
//--------------------------------------------------------------------------
//--------------------------------------
//
Projectile::Projectile()
: mPhysicsWorld( NULL ),
mDataBlock( NULL ),
mParticleEmitter( NULL ),
mParticleWaterEmitter( NULL ),
mSound( NULL ),
mCurrPosition( 0, 0, 0 ),
mCurrVelocity( 0, 0, 1 ),
mSourceObjectId( -1 ),
mSourceObjectSlot( -1 ),
mCurrTick( 0 ),
mProjectileShape( NULL ),
mActivateThread( NULL ),
mMaintainThread( NULL ),
mHasHit(false),
mHasExploded( false ),
mFadeValue( 1.0f )
{
// Todo: ScopeAlways?
mNetFlags.set(Ghostable);
mTypeMask |= ProjectileObjectType | LightObjectType | DynamicShapeObjectType;
mLight = LightManager::createLightInfo();
mLight->setType( LightInfo::Point );
mLightState.clear();
mLightState.setLightInfo( mLight );
mDataBlock = 0;
ignoreSourceTimeout = false;
dynamicCollisionMask = csmDynamicCollisionMask;
staticCollisionMask = csmStaticCollisionMask;
}
Projectile::~Projectile()
{
SAFE_DELETE(mLight);
delete mProjectileShape;
mProjectileShape = NULL;
if (mDataBlock && mDataBlock->isTempClone())
{
delete mDataBlock;
mDataBlock = 0;
}
}
//--------------------------------------------------------------------------
void Projectile::initPersistFields()
{
docsURL;
addGroup("Physics");
addProtectedField("initialPosition", TypePoint3F, Offset(mInitialPosition, Projectile), &_setInitialPosition, &defaultProtectedGetFn,
"@brief Starting position for the projectile.\n\n");
//addField("initialPosition", TypePoint3F, Offset(mCurrPosition, Projectile),
// "@brief Starting position for the projectile.\n\n");
addProtectedField("initialVelocity", TypePoint3F, Offset(mInitialVelocity, Projectile), &_setInitialVelocity, &defaultProtectedGetFn,
"@brief Starting velocity for the projectile.\n\n");
//addField("initialVelocity", TypePoint3F, Offset(mCurrVelocity, Projectile),
// "@brief Starting velocity for the projectile.\n\n");
endGroup("Physics");
addGroup("Source");
addField("sourceObject", TypeS32, Offset(mSourceObjectId, Projectile),
"@brief ID number of the object that fired the projectile.\n\n"
"@note If the projectile was fired by a WeaponImage, sourceObject will be "
"the object that owns the WeaponImage. This is usually the player.");
addField("sourceSlot", TypeS32, Offset(mSourceObjectSlot, Projectile),
"@brief The sourceObject's weapon slot that the projectile originates from.\n\n");
addField("ignoreSourceTimeout", TypeBool, Offset(ignoreSourceTimeout, Projectile));
endGroup("Source");
Parent::initPersistFields();
}
bool Projectile::_setInitialPosition( void *object, const char *index, const char *data )
{
Projectile* p = static_cast<Projectile*>( object );
if ( p )
{
Point3F pos;
S32 count = dSscanf( data, "%f %f %f",
&pos.x, &pos.y, &pos.z);
if ( (count != 3) )
{
Con::printf("Projectile: Failed to parse initial position \"px py pz\" from '%s'", data);
return false;
}
p->setInitialPosition( pos );
}
return false;
}
void Projectile::setInitialPosition( const Point3F& pos )
{
mInitialPosition = pos;
mCurrPosition = pos;
}
bool Projectile::_setInitialVelocity( void *object, const char *index, const char *data )
{
Projectile* p = static_cast<Projectile*>( object );
if ( p )
{
Point3F vel;
S32 count = dSscanf( data, "%f %f %f",
&vel.x, &vel.y, &vel.z);
if ( (count != 3) )
{
Con::printf("Projectile: Failed to parse initial velocity \"vx vy vz\" from '%s'", data);
return false;
}
p->setInitialVelocity( vel );
}
return false;
}
void Projectile::setInitialVelocity( const Point3F& vel )
{
mInitialVelocity = vel;
mCurrVelocity = vel;
}
//--------------------------------------------------------------------------
bool Projectile::calculateImpact(float,
Point3F& pointOfImpact,
float& impactTime)
{
Con::warnf(ConsoleLogEntry::General, "Projectile::calculateImpact: Should never be called");
impactTime = 0;
pointOfImpact.set(0, 0, 0);
return false;
}
//--------------------------------------------------------------------------
F32 Projectile::getUpdatePriority(CameraScopeQuery *camInfo, U32 updateMask, S32 updateSkips)
{
F32 ret = Parent::getUpdatePriority(camInfo, updateMask, updateSkips);
// if the camera "owns" this object, it should have a slightly higher priority
if(mSourceObject == camInfo->camera)
return ret + 0.2;
return ret;
}
bool Projectile::onAdd()
{
if(!Parent::onAdd())
return false;
if( !mDataBlock )
{
Con::errorf("Projectile::onAdd - Fail - Not datablock");
return false;
}
if (isServerObject())
{
ShapeBase* ptr;
if (Sim::findObject(mSourceObjectId, ptr))
{
mSourceObject = ptr;
// Since we later do processAfter( mSourceObject ) we must clearProcessAfter
// if it is deleted. SceneObject already handles this in onDeleteNotify so
// all we need to do is register for the notification.
deleteNotify( ptr );
}
else
{
if (mSourceObjectId != -1)
Con::errorf(ConsoleLogEntry::General, "Projectile::onAdd: mSourceObjectId is invalid");
mSourceObject = NULL;
}
// If we're on the server, we need to inherit some of our parent's velocity
//
mCurrTick = 0;
scriptOnAdd();
}
else
{
if (bool(mDataBlock->getProjectileShape()))
{
mProjectileShape = new TSShapeInstance(mDataBlock->getProjectileShape(), isClientObject());
if (mDataBlock->activateSeq != -1)
{
mActivateThread = mProjectileShape->addThread();
mProjectileShape->setTimeScale(mActivateThread, 1);
mProjectileShape->setSequence(mActivateThread, mDataBlock->activateSeq, 0);
}
}
if (mDataBlock->particleEmitter != NULL)
{
ParticleEmitter* pEmitter = new ParticleEmitter;
pEmitter->onNewDataBlock(mDataBlock->particleEmitter,false);
if (pEmitter->registerObject() == false)
{
Con::warnf(ConsoleLogEntry::General, "Could not register particle emitter for particle of class: %s", mDataBlock->getName());
delete pEmitter;
pEmitter = NULL;
}
mParticleEmitter = pEmitter;
}
if (mDataBlock->particleWaterEmitter != NULL)
{
ParticleEmitter* pEmitter = new ParticleEmitter;
pEmitter->onNewDataBlock(mDataBlock->particleWaterEmitter,false);
if (pEmitter->registerObject() == false)
{
Con::warnf(ConsoleLogEntry::General, "Could not register particle emitter for particle of class: %s", mDataBlock->getName());
delete pEmitter;
pEmitter = NULL;
}
mParticleWaterEmitter = pEmitter;
}
}
if (mSourceObject.isValid())
processAfter(mSourceObject);
// Setup our bounding box
if (bool(mDataBlock->getProjectileShape()) == true)
mObjBox = mDataBlock->getProjectileShape()->mBounds;
else
mObjBox = Box3F(Point3F(0, 0, 0), Point3F(0, 0, 0));
MatrixF initialTransform( true );
initialTransform.setPosition( mCurrPosition );
setTransform( initialTransform ); // calls resetWorldBox
addToScene();
if ( PHYSICSMGR )
mPhysicsWorld = PHYSICSMGR->getWorld( isServerObject() ? "server" : "client" );
return true;
}
void Projectile::onRemove()
{
if( !mParticleEmitter.isNull() )
{
mParticleEmitter->deleteWhenEmpty();
mParticleEmitter = NULL;
}
if( !mParticleWaterEmitter.isNull() )
{
mParticleWaterEmitter->deleteWhenEmpty();
mParticleWaterEmitter = NULL;
}
SFX_DELETE( mSound );
removeFromScene();
Parent::onRemove();
}
bool Projectile::onNewDataBlock( GameBaseData *dptr, bool reload )
{
mDataBlock = dynamic_cast<ProjectileData*>( dptr );
if ( !mDataBlock || !Parent::onNewDataBlock( dptr, reload ) )
return false;
if ( isGhost() )
{
// Create the sound ahead of time. This reduces runtime
// costs and makes the system easier to understand.
SFX_DELETE( mSound );
if ( mDataBlock->getProjectileSound() )
mSound = SFX->createSource( mDataBlock->getProjectileSoundProfile() );
}
return true;
}
void Projectile::submitLights( LightManager *lm, bool staticLighting )
{
if ( staticLighting || mHasExploded || !mDataBlock->lightDesc )
return;
mDataBlock->lightDesc->submitLight( &mLightState, getRenderTransform(), lm, this );
}
bool Projectile::pointInWater(const Point3F &point)
{
// This is pretty much a hack so we can use the existing ContainerQueryInfo
// and findObject router.
// We only care if we intersect with water at all
// so build a box at the point that has only 1 z extent.
// And test if water coverage is anything other than zero.
Box3F boundsBox( point, point );
boundsBox.maxExtents.z += 1.0f;
ContainerQueryInfo info;
info.box = boundsBox;
info.mass = 0.0f;
// Find and retreive physics info from intersecting WaterObject(s)
if(mContainer != NULL)
{
mContainer->findObjects( boundsBox, WaterObjectType, findRouter, &info );
}
else
{
// Handle special case where the projectile has exploded prior to having
// called onAdd() on the client. This occurs when the projectile on the
// server is created and then explodes in the same network update tick.
// On the client end in NetConnection::ghostReadPacket() the ghost is
// created and then Projectile::unpackUpdate() is called prior to the
// projectile being registered. Within unpackUpdate() the explosion
// is triggered, but without being registered onAdd() isn't called and
// the container is not set. As all we're doing is checking if the
// given explosion point is within water, we should be able to use the
// global container here. We could likely always get away with this,
// but using the actual defined container when possible is the right
// thing to do. DAW
AssertFatal(isClientObject(), "Server projectile has not been properly added");
gClientContainer.findObjects( boundsBox, WaterObjectType, findRouter, &info );
}
return ( info.waterCoverage > 0.0f );
}
//----------------------------------------------------------------------------
void Projectile::emitParticles(const Point3F& from, const Point3F& to, const Point3F& vel, const U32 ms)
{
if ( mHasExploded )
return;
Point3F axis = -vel;
if( axis.isZero() )
axis.set( 0.0, 0.0, 1.0 );
else
axis.normalize();
bool fromWater = pointInWater(from);
bool toWater = pointInWater(to);
if (!fromWater && !toWater && bool(mParticleEmitter)) // not in water
mParticleEmitter->emitParticles(from, to, axis, vel, ms);
else if (fromWater && toWater && bool(mParticleWaterEmitter)) // in water
mParticleWaterEmitter->emitParticles(from, to, axis, vel, ms);
else if (!fromWater && toWater && mDataBlock->splash) // entering water
{
// cast the ray to get the surface point of the water
RayInfo rInfo;
if (gClientContainer.castRay(from, to, WaterObjectType, &rInfo))
{
MatrixF trans = getTransform();
trans.setPosition(rInfo.point);
Splash *splash = new Splash();
splash->onNewDataBlock(mDataBlock->splash, false);
splash->setTransform(trans);
splash->setInitialState(trans.getPosition(), Point3F(0.0, 0.0, 1.0));
if (!splash->registerObject())
{
delete splash;
splash = NULL;
}
// create an emitter for the particles out of water and the particles in water
if (mParticleEmitter)
mParticleEmitter->emitParticles(from, rInfo.point, axis, vel, ms);
if (mParticleWaterEmitter)
mParticleWaterEmitter->emitParticles(rInfo.point, to, axis, vel, ms);
}
}
else if (fromWater && !toWater && mDataBlock->splash) // leaving water
{
// cast the ray in the opposite direction since that point is out of the water, otherwise
// we hit water immediately and wont get the appropriate surface point
RayInfo rInfo;
if (gClientContainer.castRay(to, from, WaterObjectType, &rInfo))
{
MatrixF trans = getTransform();
trans.setPosition(rInfo.point);
Splash *splash = new Splash();
splash->onNewDataBlock(mDataBlock->splash,false);
splash->setTransform(trans);
splash->setInitialState(trans.getPosition(), Point3F(0.0, 0.0, 1.0));
if (!splash->registerObject())
{
delete splash;
splash = NULL;
}
// create an emitter for the particles out of water and the particles in water
if (mParticleEmitter)
mParticleEmitter->emitParticles(rInfo.point, to, axis, vel, ms);
if (mParticleWaterEmitter)
mParticleWaterEmitter->emitParticles(from, rInfo.point, axis, vel, ms);
}
}
}
void Projectile::explode( const Point3F &p, const Point3F &n, const U32 collideType )
{
// Make sure we don't explode twice...
if ( mHasExploded )
return;
mHasExploded = true;
// Move the explosion point slightly off the surface to avoid problems with radius damage
Point3F explodePos = p + n * 0.001f;
if ( isServerObject() )
{
// Do what the server needs to do, damage the surrounding objects, etc.
mExplosionPosition = explodePos;
mExplosionNormal = n;
mCollideHitType = collideType;
mDataBlock->onExplode_callback( this, mExplosionPosition, mFadeValue );
setMaskBits(ExplosionMask);
// Just wait till the timeout to self delete. This
// gives server object time to get ghosted to the client.
}
else
{
// Client just plays the explosion at the right place...
//
Explosion* pExplosion = NULL;
if (mDataBlock->waterExplosion && pointInWater(p))
{
pExplosion = new Explosion;
pExplosion->onNewDataBlock(mDataBlock->waterExplosion, false);
}
else
if (mDataBlock->explosion)
{
pExplosion = new Explosion;
pExplosion->onNewDataBlock(mDataBlock->explosion, false);
}
if( pExplosion )
{
MatrixF xform(true);
xform.setPosition(explodePos);
pExplosion->setTransform(xform);
pExplosion->setInitialState(explodePos, n);
pExplosion->setCollideType( collideType );
if (pExplosion->registerObject() == false)
{
Con::errorf(ConsoleLogEntry::General, "Projectile(%s)::explode: couldn't register explosion",
mDataBlock->getName() );
delete pExplosion;
pExplosion = NULL;
}
}
// Client (impact) decal.
if ( mDataBlock->decal )
gDecalManager->addDecal(p, n, 0.0f, mDataBlock->decal);
// Client object
updateSound();
}
/*
// Client and Server both should apply forces to PhysicsWorld objects
// within the explosion.
if ( false && mPhysicsWorld )
{
F32 force = 200.0f;
mPhysicsWorld->explosion( p, 15.0f, force );
}
*/
}
void Projectile::updateSound()
{
if (!mDataBlock->isProjectileSoundValid())
return;
if ( mSound )
{
if ( mHasExploded )
mSound->stop();
else
{
if ( !mSound->isPlaying() )
mSound->play();
mSound->setVelocity( getVelocity() );
mSound->setTransform( getRenderTransform() );
}
}
}
void Projectile::processTick( const Move *move )
{
Parent::processTick( move );
mCurrTick++;
simulate( TickSec );
}
void Projectile::simulate( F32 dt )
{
if ( isServerObject() )
{
if (mCurrTick >= (mDataBlock->lifetime - TickMs))
{
if (mDataBlock->mExplodeOnTmeout)
explode(mCurrPosition, Point3F::UnitZ, VehicleObjectType);
}
if (mCurrTick >= mDataBlock->lifetime || (mHasHit && mCurrTick < mDataBlock->armingDelay))
{
deleteObject();
return;
}
}
if ( mHasExploded )
return;
// ... otherwise, we have to do some simulation work.
RayInfo rInfo;
Point3F oldPosition;
Point3F newPosition;
oldPosition = mCurrPosition;
if ( mDataBlock->isBallistic )
mCurrVelocity.z -= 9.81 * mDataBlock->gravityMod * dt;
newPosition = oldPosition + mCurrVelocity * dt;
// disable the source objects collision reponse for a short time while we
// determine if the projectile is capable of moving from the old position
// to the new position, otherwise we'll hit ourself
bool disableSourceObjCollision = (mSourceObject.isValid() && (ignoreSourceTimeout || mCurrTick <= SourceIdTimeoutTicks));
if ( disableSourceObjCollision )
mSourceObject->disableCollision();
disableCollision();
// Determine if the projectile is going to hit any object between the previous
// position and the new position. This code is executed both on the server
// and on the client (for prediction purposes). It is possible that the server
// will have registered a collision while the client prediction has not. If this
// happens the client will be corrected in the next packet update.
// Raycast the abstract PhysicsWorld if a PhysicsPlugin exists.
bool hit = false;
if ( mPhysicsWorld )
hit = mPhysicsWorld->castRay( oldPosition, newPosition, &rInfo, Point3F( newPosition - oldPosition) * mDataBlock->impactForce );
else
{
hit = getContainer()->castRay(oldPosition, newPosition, dynamicCollisionMask | staticCollisionMask, &rInfo);
if (hit && rInfo.object->getTypeMask() & VehicleObjectType)
{
RigidShape* aRigid = dynamic_cast<RigidShape*>(rInfo.object);
if (aRigid)
aRigid->applyImpulse(rInfo.point, Point3F(newPosition - oldPosition) * mDataBlock->impactForce);
}
}
if ( hit )
{
// make sure the client knows to bounce
if(isServerObject() && (rInfo.object->getTypeMask() & staticCollisionMask) == 0)
setMaskBits( BounceMask );
MatrixF xform( true );
xform.setColumn( 3, rInfo.point );
setTransform( xform );
mCurrPosition = rInfo.point;
// Get the object type before the onCollision call, in case
// the object is destroyed.
U32 objectType = rInfo.object->getTypeMask();
// re-enable the collision response on the source object since
// we need to process the onCollision and explode calls
if ( disableSourceObjCollision )
mSourceObject->enableCollision();
// Ok, here is how this works:
// onCollision is called to notify the server scripts that a collision has occurred, then
// a call to explode is made to start the explosion process. The call to explode is made
// twice, once on the server and once on the client.
// The server process is responsible for two things:
// 1) setting the ExplosionMask network bit to guarantee that the client calls explode
// 2) initiate the explosion process on the server scripts
// The client process is responsible for only one thing:
// 1) drawing the appropriate explosion
// It is possible that during the processTick the server may have decided that a hit
// has occurred while the client prediction has decided that a hit has not occurred.
// In this particular scenario the client will have failed to call onCollision and
// explode during the processTick. However, the explode function will be called
// during the next packet update, due to the ExplosionMask network bit being set.
// onCollision will remain uncalled on the client however, therefore no client
// specific code should be placed inside the function!
onCollision( rInfo.point, rInfo.normal, rInfo.object );
// Next order of business: do we explode on this hit?
if ( mCurrTick > mDataBlock->armingDelay || mDataBlock->armingDelay == 0 )
{
mCurrVelocity = Point3F::Zero;
explode( rInfo.point, rInfo.normal, objectType );
}
if ( mDataBlock->isBallistic )
{
// Otherwise, this represents a bounce. First, reflect our velocity
// around the normal...
Point3F bounceVel = mCurrVelocity - rInfo.normal * (mDot( mCurrVelocity, rInfo.normal ) * 2.0);
mCurrVelocity = bounceVel;
// Add in surface friction...
Point3F tangent = bounceVel - rInfo.normal * mDot(bounceVel, rInfo.normal);
mCurrVelocity -= tangent * mDataBlock->bounceFriction;
// Now, take elasticity into account for modulating the speed of the grenade
mCurrVelocity *= mDataBlock->bounceElasticity;
// Set the new position to the impact and the bounce
// will apply on the next frame.
//F32 timeLeft = 1.0f - rInfo.t;
newPosition = oldPosition = rInfo.point + rInfo.normal * 0.05f;
}
else
{
mCurrVelocity = Point3F::Zero;
newPosition = oldPosition = rInfo.point + rInfo.normal * 0.05f;
mHasHit = true;
}
}
// re-enable the collision response on the source object now
// that we are done processing the ballistic movement
if ( disableSourceObjCollision )
mSourceObject->enableCollision();
enableCollision();
if ( isClientObject() )
{
emitParticles( mCurrPosition, newPosition, mCurrVelocity, U32( dt * 1000.0f ) );
updateSound();
}
mCurrDeltaBase = newPosition;
mCurrBackDelta = mCurrPosition - newPosition;
mCurrPosition = newPosition;
MatrixF xform( true );
xform.setColumn( 3, mCurrPosition );
setTransform( xform );
}
void Projectile::advanceTime(F32 dt)
{
Parent::advanceTime(dt);
if ( mHasExploded || dt == 0.0)
return;
if (mActivateThread &&
mProjectileShape->getDuration(mActivateThread) > mProjectileShape->getTime(mActivateThread) + dt)
{
mProjectileShape->advanceTime(dt, mActivateThread);
}
else
{
if (mMaintainThread)
{
mProjectileShape->advanceTime(dt, mMaintainThread);
}
else if (mActivateThread && mDataBlock->maintainSeq != -1)
{
mMaintainThread = mProjectileShape->addThread();
mProjectileShape->setTimeScale(mMaintainThread, 1);
mProjectileShape->setSequence(mMaintainThread, mDataBlock->maintainSeq, 0);
mProjectileShape->advanceTime(dt, mMaintainThread);
}
}
}
void Projectile::interpolateTick(F32 delta)
{
Parent::interpolateTick(delta);
if( mHasExploded )
return;
Point3F interpPos = mCurrDeltaBase + mCurrBackDelta * delta;
Point3F dir = mCurrVelocity;
if(dir.isZero())
dir.set(0,0,1);
else
dir.normalize();
MatrixF xform(true);
xform = MathUtils::createOrientFromDir(dir);
xform.setPosition(interpPos);
setRenderTransform(xform);
// fade out the projectile image
S32 time = (S32)(mCurrTick - delta);
if(time > mDataBlock->fadeDelay)
{
F32 fade = F32(time - mDataBlock->fadeDelay);
mFadeValue = 1.0 - (fade / F32(mDataBlock->lifetime));
}
else
mFadeValue = 1.0;
updateSound();
}
//--------------------------------------------------------------------------
void Projectile::onCollision(const Point3F& hitPosition, const Point3F& hitNormal, SceneObject* hitObject)
{
// No client specific code should be placed or branched from this function
if(isClientObject())
return;
if (hitObject != NULL && isServerObject())
{
mDataBlock->onCollision_callback( this, hitObject, mFadeValue, hitPosition, hitNormal );
}
}
//--------------------------------------------------------------------------
U32 Projectile::packUpdate( NetConnection *con, U32 mask, BitStream *stream )
{
U32 retMask = Parent::packUpdate( con, mask, stream );
const bool isInitalUpdate = mask & GameBase::InitialUpdateMask;
// InitialUpdateMask
if ( stream->writeFlag( isInitalUpdate ) )
{
stream->writeRangedU32( mCurrTick, 0, MaxLivingTicks );
if ( mSourceObject.isValid() )
{
// Potentially have to write this to the client, let's make sure it has a
// ghost on the other side...
S32 ghostIndex = con->getGhostIndex( mSourceObject );
if ( stream->writeFlag( ghostIndex != -1 ) )
{
stream->writeRangedU32( U32(ghostIndex),
0,
NetConnection::MaxGhostCount );
stream->writeRangedU32( U32(mSourceObjectSlot),
0,
ShapeBase::MaxMountedImages - 1 );
stream->writeFlag(ignoreSourceTimeout);
}
else
// have not recieved the ghost for the source object yet, try again later
retMask |= GameBase::InitialUpdateMask;
}
else
stream->writeFlag( false );
}
// ExplosionMask
//
// ExplosionMask will be set during the initial update but hidden is
// only true if we have really exploded.
if ( stream->writeFlag( ( mask & ExplosionMask ) && mHasExploded ) )
{
mathWrite(*stream, mExplosionPosition);
mathWrite(*stream, mExplosionNormal);
stream->write(mCollideHitType);
}
// BounceMask
if ( stream->writeFlag( mask & BounceMask ) )
{
// Bounce against dynamic object
mathWrite(*stream, mCurrPosition);
mathWrite(*stream, mCurrVelocity);
}
return retMask;
}
void Projectile::unpackUpdate(NetConnection* con, BitStream* stream)
{
Parent::unpackUpdate(con, stream);
if ( stream->readFlag() ) // InitialUpdateMask
{
mCurrTick = stream->readRangedU32( 0, MaxLivingTicks );
if ( stream->readFlag() )
{
mSourceObjectId = stream->readRangedU32( 0, NetConnection::MaxGhostCount );
mSourceObjectSlot = stream->readRangedU32( 0, ShapeBase::MaxMountedImages - 1 );
ignoreSourceTimeout = stream->readFlag();
NetObject* pObject = con->resolveGhost( mSourceObjectId );
if ( pObject != NULL )
mSourceObject = dynamic_cast<ShapeBase*>( pObject );
}
else
{
mSourceObjectId = -1;
mSourceObjectSlot = -1;
mSourceObject = NULL;
}
}
if ( stream->readFlag() ) // ExplosionMask
{
Point3F explodePoint;
Point3F explodeNormal;
mathRead( *stream, &explodePoint );
mathRead( *stream, &explodeNormal );
stream->read( &mCollideHitType );
// start the explosion visuals
explode( explodePoint, explodeNormal, mCollideHitType );
}
if ( stream->readFlag() ) // BounceMask
{
Point3F pos;
mathRead( *stream, &pos );
mathRead( *stream, &mCurrVelocity );
mCurrDeltaBase = pos;
mCurrBackDelta = mCurrPosition - pos;
mCurrPosition = pos;
setPosition( mCurrPosition );
}
}
//--------------------------------------------------------------------------
void Projectile::prepRenderImage( SceneRenderState* state )
{
if (mHasExploded || mFadeValue <= (1.0/255.0))
return;
if ( mDataBlock->lightDesc )
{
mDataBlock->lightDesc->prepRender( state, &mLightState, getRenderTransform() );
}
/*
if ( mFlareData )
{
mFlareState.fullBrightness = mDataBlock->lightDesc->mBrightness;
mFlareState.scale = mFlareScale;
mFlareState.lightInfo = mLight;
mFlareState.lightMat = getTransform();
mFlareData->prepRender( state, &mFlareState );
}
*/
prepBatchRender( state );
}
void Projectile::prepBatchRender( SceneRenderState *state )
{
if ( !mProjectileShape )
return;
GFXTransformSaver saver;
// Set up our TS render state.
TSRenderState rdata;
rdata.setSceneState( state );
// We might have some forward lit materials
// so pass down a query to gather lights.
LightQuery query;
query.init( getWorldSphere() );
rdata.setLightQuery( &query );
MatrixF mat = getRenderTransform();
mat.scale( mObjScale );
mat.scale( mDataBlock->scale );
GFX->setWorldMatrix( mat );
mProjectileShape->setDetailFromPosAndScale( state, mat.getPosition(), mObjScale );
mProjectileShape->animate();
mProjectileShape->render( rdata );
}
DefineEngineMethod(Projectile, presimulate, void, (F32 seconds), (1.0f),
"@brief Updates the projectile's positional and collision information.\n\n"
"This function will first delete the projectile if it is a server object and is outside it's ProjectileData::lifetime. "
"Also responsible for applying gravity, determining collisions, triggering explosions, "
"emitting trail particles, and calculating bounces if necessary."
"@param seconds Amount of time, in seconds since the simulation's start, to advance.\n"
"@tsexample\n"
"// Tell the projectile to process a simulation event, and provide the amount of time\n"
"// that has passed since the simulation began.\n"
"%seconds = 2.0;\n"
"%projectile.presimulate(%seconds);\n"
"@endtsexample\n"
"@note This function is not called if the SimObject::hidden is true.")
{
object->simulate( seconds );
}
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