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Aquaria/BBGE/ParticleEffect.cpp

494 lines
9.9 KiB
C++

/*
Copyright (C) 2007, 2010 - Bit-Blot
This file is part of Aquaria.
Aquaria is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "Particles.h"
#include "SimpleIStringStream.h"
ParticleEffect::ParticleEffect() : RenderObject()
{
running = false;
waitForParticles = true;
effectLife = -1;
die = false;
effectLifeCounter = -1;
cull = false;
}
void ParticleEffect::setDie(bool v)
{
die = v;
}
void ParticleEffect::load(const std::string &name)
{
BBGE_PROF(ParticleEffect_load);
particleManager->loadParticleEffectFromBank(name, this);
}
void ParticleEffect::transfer(ParticleEffect *pe)
{
pe->effectLife = this->effectLife;
pe->clearEmitters();
pe->name = this->name;
for (Emitters::iterator i = emitters.begin(); i != emitters.end(); i++)
{
Emitter *e = pe->addNewEmitter();
e->data = (*i)->data;
e->setTexture(e->data.texture);
/*
if (e->data.flipH)
{
if (!e->isfh())
e->flipHorizontal();
}
else
{
if (e->isfh())
e->flipHorizontal();
}
*/
}
}
Emitter *ParticleEffect::addNewEmitter()
{
Emitter *e = new Emitter(this);
emitters.push_back(e);
addChild(e, PM_POINTER);
return e;
}
void ParticleEffect::clearEmitters()
{
for (Emitters::iterator i = emitters.begin(); i != emitters.end(); i++)
{
(*i)->destroy();
delete *i;
}
emitters.clear();
children.clear();
}
void ParticleEffect::bankLoad(const std::string &file, const std::string &path)
{
std::string usef = path + file + ".txt";
name = file;
stringToLower(name);
clearEmitters();
debugLog(usef);
char *buffer = readFile(usef);
if (!buffer)
{
debugLog("Can't read " + usef);
return;
}
SimpleIStringStream inf(buffer, SimpleIStringStream::TAKE_OVER);
std::string token, tmp;
int state=0;
Emitter *currentEmitter = 0;
while (inf >> token)
{
//debugLog("Token: " + token);
if (token == "[Emitter]")
{
state = 1;
currentEmitter = addNewEmitter();
continue;
}
if (token == "[Color]")
{
state = 2;
continue;
}
if (token == "[Number]")
{
state = 3;
continue;
}
if (token == "[Alpha]")
{
state = 4;
continue;
}
if (token == "[Rotation]")
{
state = 5;
continue;
}
if (token == "[Scale]")
{
state = 6;
continue;
}
if (state == 2 && currentEmitter)
{
float t, x, y, z;
SimpleIStringStream is(token);
is >> t;
inf >> x >> y >> z;
currentEmitter->data.color.ensureData();
currentEmitter->data.color.data->path.addPathNode(Vector(x,y,z), t);
currentEmitter->data.color.startPath(currentEmitter->data.life);
/*
std::ostringstream os;
os << "colorNode: " << t << ", " << x << ", " << y << ", " << z;
debugLog(os.str());
*/
}
if (state == 3 && currentEmitter)
{
float t, num;
SimpleIStringStream is(token);
is >> t;
inf >> num;
currentEmitter->data.number.ensureData();
currentEmitter->data.number.data->path.addPathNode(num, t);
currentEmitter->data.number.startPath(currentEmitter->data.life);
/*
std::ostringstream os;
os << "numberNode: " << t << ", " << num;
debugLog(os.str());
*/
}
if (state == 4 && currentEmitter)
{
float t, num;
SimpleIStringStream is(token);
is >> t;
inf >> num;
currentEmitter->data.alpha.ensureData();
currentEmitter->data.alpha.data->path.addPathNode(num, t);
currentEmitter->data.alpha.startPath(currentEmitter->data.life);
/*
std::ostringstream os;
os << "alphaNode: " << t << ", " << num;
debugLog(os.str());
*/
}
if (state == 5 && currentEmitter)
{
float t, num;
SimpleIStringStream is(token);
is >> t;
inf >> num;
currentEmitter->data.rotation.ensureData();
currentEmitter->data.rotation.data->path.addPathNode(Vector(0,0,num), t);
currentEmitter->data.rotation.startPath(currentEmitter->data.life);
/*
std::ostringstream os;
os << "rotationNode: " << t << ", " << num;
debugLog(os.str());
*/
}
if (state == 6 && currentEmitter)
{
float t, sx, sy;
SimpleIStringStream is(token);
is >> t;
inf >> sx >> sy;
currentEmitter->data.scale.ensureData();
currentEmitter->data.scale.data->path.addPathNode(Vector(sx, sy), t);
currentEmitter->data.scale.startPath(currentEmitter->data.life);
/*
std::ostringstream os;
os << "scaleNode: " << t << ", " << sx << ", " << sy;
debugLog(os.str());
*/
}
if (token == "EmitterLife")
{
inf >> tmp;
inf >> effectLife;
continue;
}
if (token == "EmitterScale")
{
inf >> tmp;
inf >> scale.x;
scale.y = scale.x;
continue;
}
if (token == "EmitterUpdateCull")
{
inf >> tmp;
inf >> updateCull;
continue;
}
// subs
if (currentEmitter)
{
if (token == "SpawnLocal")
{
inf >> tmp;
inf >> currentEmitter->data.spawnLocal;
continue;
}
else if (token == "Texture")
{
inf >> tmp;
inf >> currentEmitter->data.texture;
}
else if (token == "AvatarVelocity")
{
inf >> tmp;
inf >> currentEmitter->data.avatarVelocity;
}
else if (token == "AlphaModTimesVel")
{
inf >> tmp;
inf >> currentEmitter->data.alphaModTimesVel;
}
else if (token == "RandomScale")
{
inf >> tmp;
inf >> currentEmitter->data.randomScale1 >> currentEmitter->data.randomScale2;
}
else if (token == "RandomAlphaMod")
{
inf >> tmp;
inf >> currentEmitter->data.randomAlphaMod1 >> currentEmitter->data.randomAlphaMod2;
}
else if (token == "RandomSpawnRadius")
{
inf >> tmp;
inf >> currentEmitter->data.randomSpawnRadius;
}
else if (token == "RandomSpawnMod")
{
inf >> tmp;
inf >> currentEmitter->data.randomSpawnMod.x >> currentEmitter->data.randomSpawnMod.y;
}
else if (token == "RandomSpawnRadiusRange")
{
inf >> tmp;
inf >> currentEmitter->data.randomSpawnRadiusRange;
}
else if (token == "RandomVelocityMagnitude")
{
inf >> tmp;
inf >> currentEmitter->data.randomVelocityMagnitude;
}
else if (token == "CopyParentRotation")
{
inf >> tmp;
inf >> currentEmitter->data.copyParentRotation;
}
else if (token == "CopyParentFlip")
{
inf >> tmp;
inf >> currentEmitter->data.copyParentFlip;
}
else if (token == "JustOne")
{
inf >> tmp;
inf >> currentEmitter->data.justOne;
}
else if (token == "SpawnTimeOffset")
{
inf >> tmp;
inf >> currentEmitter->data.spawnTimeOffset;
}
else if (token == "RandomRotationRange")
{
inf >> tmp;
inf >> currentEmitter->data.randomRotationRange;
}
else if (token == "InitialVelocity")
{
inf >> tmp;
inf >> currentEmitter->data.initialVelocity.x >> currentEmitter->data.initialVelocity.y;
}
else if (token == "Influenced")
{
inf >> tmp;
inf >> currentEmitter->data.influenced;
}
else if (token == "DeathPrt")
{
inf >> tmp;
inf >> currentEmitter->data.deathPrt;
}
else if (token == "Gravity")
{
inf >> tmp;
inf >> currentEmitter->data.gravity.x >> currentEmitter->data.gravity.y;
}
else if (token == "PauseLevel")
{
inf >> tmp;
inf >> currentEmitter->data.pauseLevel;
//errorLog("read in pauseLevel");
}
else if (token == "FlipH")
{
inf >> tmp;
inf >> currentEmitter->data.flipH;
}
else if (token == "FlipV")
{
inf >> tmp;
inf >> currentEmitter->data.flipV;
}
else if (token == "Blend")
{
inf >> tmp;
std::string blendType;
inf >> blendType;
if (blendType == "Add")
currentEmitter->data.blendType = BLEND_ADD;
else if (blendType == "Sub")
currentEmitter->data.blendType = RenderObject::BLEND_SUB;
}
else if (token == "Width")
{
inf >> tmp;
inf >> currentEmitter->data.width;
}
else if (token == "Height")
{
inf >> tmp;
inf >> currentEmitter->data.height;
}
else if (token == "Life")
{
inf >> tmp;
inf >> currentEmitter->data.life;
}
else if (token == "GroupRender")
{
inf >> tmp;
inf >> currentEmitter->data.groupRender;
}
else if (token == "Shape")
{
inf >> tmp;
inf >> tmp;
}
else if (token == "Suck")
{
inf >> tmp;
inf >> currentEmitter->data.suckIndex >> currentEmitter->data.suckStr;
}
}
}
}
void ParticleEffect::onUpdate(float dt)
{
RenderObject::onUpdate(dt);
/*
for (Emitters::iterator i = emitters.begin(); i != emitters.end(); i++)
{
(*i)->update(dt);
}
*/
if (effectLifeCounter == 0)
{
if (waitForParticles)
{
// extra loop, could be combined above later
int c=0,e=0;
for (Emitters::iterator i = emitters.begin(); i != emitters.end(); i++)
{
if ((*i)->isEmpty())
{
e++;
}
c++;
}
if (c == e)
{
if (die)
safeKill();
}
}
else
{
if (die)
safeKill();
}
}
if (effectLifeCounter != -1 && running)
{
effectLifeCounter -= dt;
if (effectLifeCounter <= 0)
{
effectLifeCounter = 0;
stop();
}
}
}
// stop the particle effect, let the particles all die off before we delete ourselves
void ParticleEffect::killParticleEffect()
{
effectLifeCounter = 0.0001;
die = true;
//stop();
}
void ParticleEffect::start()
{
effectLifeCounter = effectLife;
running = true;
for (Emitters::iterator i = emitters.begin(); i != emitters.end(); i++)
{
(*i)->start();
}
}
void ParticleEffect::stop()
{
running = false;
for (Emitters::iterator i = emitters.begin(); i != emitters.end(); i++)
{
(*i)->stop();
}
}
void ParticleEffect::onRender()
{
BBGE_PROF(ParticleEffect_onRender);
RenderObject::onRender();
}