IExplosionGenerator* CExplosionGeneratorHandler::LoadGenerator(const string& tag)
{
string klass;
string::size_type seppos = tag.find(':');
if (seppos == string::npos) {
klass = tag;
} else {
klass = tag.substr(0, seppos);
}
creg::Class* cls = generatorClasses.GetClass(klass);
if (!cls->IsSubclassOf(IExplosionGenerator::StaticClass())) {
throw content_error(klass + " is not a subclass of IExplosionGenerator");
}
IExplosionGenerator* eg = (IExplosionGenerator*) cls->CreateInstance();
if (seppos != string::npos) {
eg->Load(this, tag.substr(seppos + 1));
}
return eg;
}
IExplosionGenerator* CExplosionGeneratorHandler::LoadGenerator(const string& tag)
{
string prefix = tag;
string postfix = "";
string::size_type seppos = tag.find(':');
if (seppos != string::npos) {
// grab the "custom" prefix (the only supported value)
prefix = tag.substr(0, seppos);
postfix = tag.substr(seppos + 1);
assert(prefix == "custom");
}
creg::Class* cls = generatorClasses.GetClass(prefix);
if (!cls->IsSubclassOf(IExplosionGenerator::StaticClass())) {
throw content_error(prefix + " is not a subclass of IExplosionGenerator");
}
IExplosionGenerator* explGen = (IExplosionGenerator*) cls->CreateInstance();
explGen->SetGeneratorID(++numLoadedGenerators);
assert(gCEG != explGen);
assert(gCEG->GetGeneratorID() == 0);
if (seppos != string::npos) {
explGen->Load(this, postfix);
}
explosionGenerators[explGen->GetGeneratorID()] = explGen;
return explGen;
}
void CGameHelper::Explosion(const ExplosionParams& params) {
const float3& dir = params.dir;
const float3 expPos = params.pos;
const DamageArray& damages = params.damages;
// if weaponDef is NULL, this is a piece-explosion
// (implicit damage-type -DAMAGE_EXPLOSION_DEBRIS)
const WeaponDef* weaponDef = params.weaponDef;
const int weaponDefID = (weaponDef != NULL)? weaponDef->id: -CSolidObject::DAMAGE_EXPLOSION_DEBRIS;
CUnit* owner = params.owner;
CUnit* hitUnit = params.hitUnit;
CFeature* hitFeature = params.hitFeature;
const float craterAOE = std::max(1.0f, params.craterAreaOfEffect);
const float damageAOE = std::max(1.0f, params.damageAreaOfEffect);
const float expEdgeEffect = params.edgeEffectiveness;
const float expSpeed = params.explosionSpeed;
const float gfxMod = params.gfxMod;
const float realHeight = ground->GetHeightReal(expPos.x, expPos.z);
const float altitude = expPos.y - realHeight;
const bool impactOnly = params.impactOnly;
const bool ignoreOwner = params.ignoreOwner;
const bool damageGround = params.damageGround;
const bool noGfx = eventHandler.Explosion(weaponDefID, params.projectileID, expPos, owner);
if (luaUI) {
if (weaponDef != NULL && weaponDef->cameraShake > 0.0f) {
luaUI->ShockFront(weaponDef->cameraShake, expPos, damageAOE);
}
}
if (impactOnly) {
if (hitUnit) {
DoExplosionDamage(hitUnit, owner, expPos, damageAOE, expSpeed, expEdgeEffect, ignoreOwner, damages, weaponDefID, params.projectileID);
} else if (hitFeature) {
DoExplosionDamage(hitFeature, expPos, damageAOE, expEdgeEffect, damages, weaponDefID, params.projectileID);
}
} else {
{
// damage all units within the explosion radius
const vector<CUnit*>& units = quadField->GetUnitsExact(expPos, damageAOE);
bool hitUnitDamaged = false;
for (vector<CUnit*>::const_iterator ui = units.begin(); ui != units.end(); ++ui) {
CUnit* unit = *ui;
if (unit == hitUnit) {
hitUnitDamaged = true;
}
DoExplosionDamage(unit, owner, expPos, damageAOE, expSpeed, expEdgeEffect, ignoreOwner, damages, weaponDefID, params.projectileID);
}
// HACK: for a unit with an offset coldet volume, the explosion
// (from an impacting projectile) position might not correspond
// to its quadfield position so we need to damage it separately
if (hitUnit != NULL && !hitUnitDamaged) {
DoExplosionDamage(hitUnit, owner, expPos, damageAOE, expSpeed, expEdgeEffect, ignoreOwner, damages, weaponDefID, params.projectileID);
}
}
{
// damage all features within the explosion radius
const vector<CFeature*>& features = quadField->GetFeaturesExact(expPos, damageAOE);
bool hitFeatureDamaged = false;
for (vector<CFeature*>::const_iterator fi = features.begin(); fi != features.end(); ++fi) {
CFeature* feature = *fi;
if (feature == hitFeature) {
hitFeatureDamaged = true;
}
DoExplosionDamage(feature, expPos, damageAOE, expEdgeEffect, damages, weaponDefID, params.projectileID);
}
if (hitFeature != NULL && !hitFeatureDamaged) {
DoExplosionDamage(hitFeature, expPos, damageAOE, expEdgeEffect, damages, weaponDefID, params.projectileID);
}
}
// deform the map if the explosion was above-ground
// (but had large enough radius to touch the ground)
if (altitude >= -1.0f) {
if (damageGround && !mapDamage->disabled && (craterAOE > altitude) && (damages.craterMult > 0.0f)) {
// limit the depth somewhat
const float craterDepth = damages.GetDefaultDamage() * (1.0f - (altitude / craterAOE));
const float damageDepth = std::min(craterAOE * 10.0f, craterDepth);
const float craterStrength = (damageDepth + damages.craterBoost) * damages.craterMult;
const float craterRadius = craterAOE - altitude;
mapDamage->Explosion(expPos, craterStrength, craterRadius);
}
}
}
if (!noGfx) {
// use CStdExplosionGenerator by default
IExplosionGenerator* explosionGenerator = stdExplosionGenerator;
if (weaponDef != NULL && weaponDef->explosionGenerator != NULL) {
explosionGenerator = weaponDef->explosionGenerator;
}
explosionGenerator->Explosion(0, expPos, damages.GetDefaultDamage(), damageAOE, owner, gfxMod, hitUnit, dir);
}
CExplosionEvent explosionEvent(expPos, damages.GetDefaultDamage(), damageAOE, weaponDef);
CExplosionCreator::FireExplosionEvent(explosionEvent);
#if (PLAY_SOUNDS == 1)
if (weaponDef != NULL) {
const GuiSoundSet& soundSet = weaponDef->hitSound;
const unsigned int soundFlags = CCustomExplosionGenerator::GetFlagsFromHeight(expPos.y, altitude);
const int soundNum = ((soundFlags & (CCustomExplosionGenerator::SPW_WATER | CCustomExplosionGenerator::SPW_UNDERWATER)) != 0);
const int soundID = soundSet.getID(soundNum);
if (soundID > 0) {
Channels::Battle.PlaySample(soundID, expPos, soundSet.getVolume(soundNum));
}
}
#endif
}
void CUnitScript::EmitSfx(int sfxType, int piece)
{
#ifndef _CONSOLE
if (!PieceExists(piece)) {
ShowScriptError("Invalid piecenumber for emit-sfx");
return;
}
if (ph->particleSaturation > 1.0f && sfxType < SFX_CEG) {
// skip adding (unsynced!) particles when we have too many
return;
}
// Make sure wakes are only emitted on water
if ((sfxType >= SFX_WAKE) && (sfxType <= SFX_REVERSE_WAKE_2)) {
if (ground->GetApproximateHeight(unit->pos.x, unit->pos.z) > 0.0f) {
return;
}
}
float3 relPos = ZeroVector;
float3 relDir = UpVector;
if (!GetEmitDirPos(piece, relPos, relDir)) {
ShowScriptError("emit-sfx: GetEmitDirPos failed");
return;
}
relDir.SafeNormalize();
const float3 pos =
unit->pos +
unit->frontdir * relPos.z +
unit->updir * relPos.y +
unit->rightdir * relPos.x;
const float3 dir =
unit->frontdir * relDir.z +
unit->updir * relDir.y +
unit->rightdir * relDir.x;
float alpha = 0.3f + gu->usRandFloat() * 0.2f;
float alphaFalloff = 0.004f;
float fadeupTime = 4;
const UnitDef* ud = unit->unitDef;
const MoveDef* md = ud->moveDef;
// hovercraft need special care
if (md != NULL && md->moveType == MoveDef::Hover_Move) {
fadeupTime = 8.0f;
alpha = 0.15f + gu->usRandFloat() * 0.2f;
alphaFalloff = 0.008f;
}
switch (sfxType) {
case SFX_REVERSE_WAKE:
case SFX_REVERSE_WAKE_2: { //reverse wake
new CWakeProjectile(
pos + gu->usRandVector() * 2.0f,
dir * 0.4f,
6.0f + gu->usRandFloat() * 4.0f,
0.15f + gu->usRandFloat() * 0.3f,
unit,
alpha, alphaFalloff, fadeupTime
);
break;
}
case SFX_WAKE_2: //wake 2, in TA it lives longer..
case SFX_WAKE: { //regular ship wake
new CWakeProjectile(
pos + gu->usRandVector() * 2.0f,
dir * 0.4f,
6.0f + gu->usRandFloat() * 4.0f,
0.15f + gu->usRandFloat() * 0.3f,
unit,
alpha, alphaFalloff, fadeupTime
);
break;
}
case SFX_BUBBLE: { //submarine bubble. does not provide direction through piece vertices..
float3 pspeed = gu->usRandVector() * 0.1f;
pspeed.y += 0.2f;
new CBubbleProjectile(
pos + gu->usRandVector() * 2.0f,
pspeed,
40.0f + gu->usRandFloat() * 30.0f,
1.0f + gu->usRandFloat() * 2.0f,
0.01f,
unit,
0.3f + gu->usRandFloat() * 0.3f
);
} break;
case SFX_WHITE_SMOKE: //damaged unit smoke
new CSmokeProjectile(pos, gu->usRandVector() * 0.5f + UpVector * 1.1f, 60, 4, 0.5f, unit, 0.5f);
break;
case SFX_BLACK_SMOKE: //damaged unit smoke
new CSmokeProjectile(pos, gu->usRandVector() * 0.5f + UpVector * 1.1f, 60, 4, 0.5f, unit, 0.6f);
break;
case SFX_VTOL: {
const float3 speed =
unit->speed * 0.7f +
unit->frontdir * 0.5f * relDir.z +
unit->updir * 0.5f * -math::fabs(relDir.y) +
unit->rightdir * 0.5f * relDir.x;
CHeatCloudProjectile* hc = new CHeatCloudProjectile(
pos,
speed,
10 + gu->usRandFloat() * 5,
3 + gu->usRandFloat() * 2,
unit
);
hc->size = 3;
break;
}
default: {
if (sfxType & SFX_CEG) {
// emit defined explosiongenerator
const unsigned index = sfxType - SFX_CEG;
if (index >= unit->unitDef->sfxExplGens.size() || unit->unitDef->sfxExplGens[index] == NULL) {
ShowScriptError("Invalid explosion generator index for emit-sfx");
break;
}
IExplosionGenerator* explGen = unit->unitDef->sfxExplGens[index];
explGen->Explosion(0, pos, unit->cegDamage, 1, unit, 0, 0, dir);
}
else if (sfxType & SFX_FIRE_WEAPON) {
// make a weapon fire from the piece
const unsigned index = sfxType - SFX_FIRE_WEAPON;
if (index >= unit->weapons.size() || unit->weapons[index] == NULL) {
ShowScriptError("Invalid weapon index for emit-sfx");
break;
}
CWeapon* weapon = unit->weapons[index];
const float3 targetPos = weapon->targetPos;
const float3 weaponMuzzlePos = weapon->weaponMuzzlePos;
weapon->targetPos = pos + dir;
weapon->weaponMuzzlePos = pos;
weapon->Fire();
weapon->weaponMuzzlePos = weaponMuzzlePos;
weapon->targetPos = targetPos;
}
else if (sfxType & SFX_DETONATE_WEAPON) {
const unsigned index = sfxType - SFX_DETONATE_WEAPON;
if (index >= unit->weapons.size() || unit->weapons[index] == NULL) {
ShowScriptError("Invalid weapon index for emit-sfx");
break;
}
// detonate weapon from piece
const WeaponDef* weaponDef = unit->weapons[index]->weaponDef;
CGameHelper::ExplosionParams params = {
pos,
ZeroVector,
weaponDef->damages,
weaponDef,
unit, // owner
NULL, // hitUnit
NULL, // hitFeature
weaponDef->craterAreaOfEffect,
weaponDef->damageAreaOfEffect,
weaponDef->edgeEffectiveness,
weaponDef->explosionSpeed,
1.0f, // gfxMod
weaponDef->impactOnly,
weaponDef->noSelfDamage, // ignoreOwner
true, // damageGround
};
helper->Explosion(params);
}
} break;
}
#endif
}
void CUnitScript::EmitSfx(int sfxType, int piece)
{
#ifndef _CONSOLE
if (!PieceExists(piece)) {
ShowScriptError("Invalid piecenumber for emit-sfx");
return;
}
if (ph->particleSaturation > 1.0f && sfxType < SFX_CEG) {
// skip adding (unsynced!) particles when we have too many
return;
}
// Make sure wakes are only emitted on water
if ((sfxType >= SFX_WAKE) && (sfxType <= SFX_REVERSE_WAKE_2)) {
if (ground->GetApproximateHeight(unit->pos.x, unit->pos.z) > 0.0f) {
return;
}
}
float3 relPos = ZeroVector;
float3 relDir = UpVector;
if (!GetEmitDirPos(piece, relPos, relDir)) {
ShowScriptError("emit-sfx: GetEmitDirPos failed");
return;
}
relDir.SafeNormalize();
const float3 pos =
unit->pos +
unit->frontdir * relPos.z +
unit->updir * relPos.y +
unit->rightdir * relPos.x;
const float3 dir =
unit->frontdir * relDir.z +
unit->updir * relDir.y +
unit->rightdir * relDir.x;
float alpha = 0.3f + gu->usRandFloat() * 0.2f;
float alphaFalloff = 0.004f;
float fadeupTime = 4;
// Hovers need special care
if (unit->unitDef->canhover) {
fadeupTime = 8.0f;
alpha = 0.15f + gu->usRandFloat() * 0.2f;
alphaFalloff = 0.008f;
}
switch (sfxType) {
case SFX_REVERSE_WAKE:
case SFX_REVERSE_WAKE_2: { //reverse wake
new CWakeProjectile(
pos + gu->usRandVector() * 2.0f,
dir * 0.4f,
6.0f + gu->usRandFloat() * 4.0f,
0.15f + gu->usRandFloat() * 0.3f,
unit,
alpha, alphaFalloff, fadeupTime
);
break;
}
case SFX_WAKE_2: //wake 2, in TA it lives longer..
case SFX_WAKE: { //regular ship wake
new CWakeProjectile(
pos + gu->usRandVector() * 2.0f,
dir * 0.4f,
6.0f + gu->usRandFloat() * 4.0f,
0.15f + gu->usRandFloat() * 0.3f,
unit,
alpha, alphaFalloff, fadeupTime
);
break;
}
case SFX_BUBBLE: { //submarine bubble. does not provide direction through piece vertices..
float3 pspeed = gu->usRandVector() * 0.1f;
pspeed.y += 0.2f;
new CBubbleProjectile(
pos + gu->usRandVector() * 2.0f,
pspeed,
40.0f + gu->usRandFloat() * 30.0f,
1.0f + gu->usRandFloat() * 2.0f,
0.01f,
unit,
0.3f + gu->usRandFloat() * 0.3f
);
} break;
case SFX_WHITE_SMOKE: //damaged unit smoke
new CSmokeProjectile(pos, gu->usRandVector() * 0.5f + UpVector * 1.1f, 60, 4, 0.5f, unit, 0.5f);
break;
case SFX_BLACK_SMOKE: //damaged unit smoke
new CSmokeProjectile(pos, gu->usRandVector() * 0.5f + UpVector * 1.1f, 60, 4, 0.5f, unit, 0.6f);
break;
case SFX_VTOL: {
const float3 speed =
unit->speed * 0.7f +
unit->frontdir * 0.5f * relDir.z +
unit->updir * 0.5f * -fabs(relDir.y) +
unit->rightdir * 0.5f * relDir.x;
CHeatCloudProjectile* hc = new CHeatCloudProjectile(
pos,
speed,
10 + gu->usRandFloat() * 5,
3 + gu->usRandFloat() * 2,
unit
);
hc->size = 3;
break;
}
default: {
if (sfxType & SFX_CEG) {
// emit defined explosiongenerator
const unsigned index = sfxType - SFX_CEG;
if (index >= unit->unitDef->sfxExplGens.size() || unit->unitDef->sfxExplGens[index] == NULL) {
ShowScriptError("Invalid explosion generator index for emit-sfx");
break;
}
IExplosionGenerator* explGen = unit->unitDef->sfxExplGens[index];
explGen->Explosion(0, pos, unit->cegDamage, 1, unit, 0, 0, dir);
}
else if (sfxType & SFX_FIRE_WEAPON) {
// make a weapon fire from the piece
const unsigned index = sfxType - SFX_FIRE_WEAPON;
if (index >= unit->weapons.size() || unit->weapons[index] == NULL) {
ShowScriptError("Invalid weapon index for emit-sfx");
break;
}
CWeapon* weapon = unit->weapons[index];
const float3 targetPos = weapon->targetPos;
const float3 weaponMuzzlePos = weapon->weaponMuzzlePos;
// don't override the weapon's target position
// if it was not set internally (so that force-
// fire keeps working as expected)
if (!weapon->haveUserTarget) {
weapon->targetPos = pos + dir;
}
weapon->weaponMuzzlePos = pos;
weapon->Fire();
weapon->weaponMuzzlePos = weaponMuzzlePos;
weapon->targetPos = targetPos;
}
else if (sfxType & SFX_DETONATE_WEAPON) {
const unsigned index = sfxType - SFX_DETONATE_WEAPON;
if (index >= unit->weapons.size() || unit->weapons[index] == NULL) {
ShowScriptError("Invalid weapon index for emit-sfx");
break;
}
// detonate weapon from piece
const WeaponDef* weaponDef = unit->weapons[index]->weaponDef;
if (weaponDef->soundhit.getID(0) > 0) {
Channels::Battle.PlaySample(weaponDef->soundhit.getID(0), unit, weaponDef->soundhit.getVolume(0));
}
helper->Explosion(
pos,
weaponDef->damages,
weaponDef->areaOfEffect,
weaponDef->edgeEffectiveness,
weaponDef->explosionSpeed,
unit,
true,
1.0f,
weaponDef->noSelfDamage,
weaponDef->impactOnly,
weaponDef->explosionGenerator,
NULL,
ZeroVector,
weaponDef->id
);
}
} break;
}
#endif
}
