mirror of
https://github.com/glest/glest-source.git
synced 2025-08-26 09:24:24 +02:00
new switch <rotationAllowed value="false" /> for buildings
new switch <relativeDirection value="false" /> for UnitParticleSystems
This commit is contained in:
Titus Tscharntke
859
source/shared_lib/sources/graphics/particle.cpp
Normal file
859
source/shared_lib/sources/graphics/particle.cpp
Normal file
@@ -0,0 +1,859 @@
|
||||
// ==============================================================
|
||||
// This file is part of Glest Shared Library (www.glest.org)
|
||||
//
|
||||
// Copyright (C) 2001-2008 Marti<74>o Figueroa
|
||||
//
|
||||
// You can redistribute this code 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
|
||||
// ==============================================================
|
||||
|
||||
#include "particle.h"
|
||||
|
||||
#include <cassert>
|
||||
#include <algorithm>
|
||||
|
||||
#include "util.h"
|
||||
#include "particle_renderer.h"
|
||||
#include "math_util.h"
|
||||
#include "leak_dumper.h"
|
||||
|
||||
using namespace Shared::Util;
|
||||
|
||||
namespace Shared{ namespace Graphics{
|
||||
|
||||
// =====================================================
|
||||
// class ParticleSystem
|
||||
// =====================================================
|
||||
|
||||
ParticleSystem::ParticleSystem(int particleCount){
|
||||
|
||||
//init particle vector
|
||||
blendMode = bmOne;
|
||||
particles= new Particle[particleCount];
|
||||
state= sPlay;
|
||||
aliveParticleCount=0;
|
||||
active= true;
|
||||
visible= true;
|
||||
|
||||
//vars
|
||||
texture= NULL;
|
||||
particleObserver= NULL;
|
||||
|
||||
//params
|
||||
this->particleCount= particleCount;
|
||||
maxParticleEnergy= 250;
|
||||
varParticleEnergy= 50;
|
||||
pos= Vec3f(0.0f);
|
||||
color= Vec4f(1.0f);
|
||||
colorNoEnergy= Vec4f(0.0f);
|
||||
emissionRate= 15;
|
||||
speed= 1.0f;
|
||||
teamcolorNoEnergy=false;
|
||||
teamcolorEnergy=false;
|
||||
}
|
||||
|
||||
ParticleSystem::~ParticleSystem(){
|
||||
delete [] particles;
|
||||
}
|
||||
|
||||
|
||||
// =============== VIRTUAL ======================
|
||||
|
||||
//updates all living particles and creates new ones
|
||||
void ParticleSystem::update(){
|
||||
|
||||
if(state!=sPause){
|
||||
for(int i=0; i<aliveParticleCount; ++i){
|
||||
updateParticle(&particles[i]);
|
||||
|
||||
if(deathTest(&particles[i])){
|
||||
|
||||
//kill the particle
|
||||
killParticle(&particles[i]);
|
||||
|
||||
//mantain alive particles at front of the array
|
||||
if(aliveParticleCount>0){
|
||||
particles[i]= particles[aliveParticleCount];
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
if(state!=sFade){
|
||||
for(int i=0; i<emissionRate; ++i){
|
||||
Particle *p= createParticle();
|
||||
initParticle(p, i);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void ParticleSystem::render(ParticleRenderer *pr, ModelRenderer *mr){
|
||||
if(active){
|
||||
pr->renderSystem(this);
|
||||
}
|
||||
}
|
||||
|
||||
ParticleSystem::BlendMode ParticleSystem::strToBlendMode(const string &str){
|
||||
if(str=="normal"){
|
||||
return bmOne;
|
||||
}
|
||||
else if(str=="black"){
|
||||
return bmOneMinusAlpha;
|
||||
}
|
||||
else{
|
||||
throw "Unknown particle mode: " + str;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// =============== SET ==========================
|
||||
|
||||
void ParticleSystem::setState(State state){
|
||||
this->state= state;
|
||||
}
|
||||
|
||||
void ParticleSystem::setTexture(Texture *texture){
|
||||
this->texture= texture;
|
||||
}
|
||||
|
||||
void ParticleSystem::setPos(Vec3f pos){
|
||||
this->pos= pos;
|
||||
}
|
||||
|
||||
void ParticleSystem::setColor(Vec4f color){
|
||||
this->color= color;
|
||||
}
|
||||
|
||||
void ParticleSystem::setColorNoEnergy(Vec4f colorNoEnergy){
|
||||
this->colorNoEnergy= colorNoEnergy;
|
||||
}
|
||||
|
||||
void ParticleSystem::setEmissionRate(int emissionRate){
|
||||
this->emissionRate= emissionRate;
|
||||
}
|
||||
|
||||
void ParticleSystem::setMaxParticleEnergy(int maxParticleEnergy){
|
||||
this->maxParticleEnergy= maxParticleEnergy;
|
||||
}
|
||||
|
||||
void ParticleSystem::setVarParticleEnergy(int varParticleEnergy){
|
||||
this->varParticleEnergy= varParticleEnergy;
|
||||
}
|
||||
|
||||
void ParticleSystem::setParticleSize(float particleSize){
|
||||
this->particleSize= particleSize;
|
||||
}
|
||||
|
||||
void ParticleSystem::setSpeed(float speed){
|
||||
this->speed= speed;
|
||||
}
|
||||
|
||||
void ParticleSystem::setActive(bool active){
|
||||
this->active= active;
|
||||
}
|
||||
|
||||
void ParticleSystem::setObserver(ParticleObserver *particleObserver){
|
||||
this->particleObserver= particleObserver;
|
||||
}
|
||||
|
||||
void ParticleSystem::setVisible(bool visible){
|
||||
this->visible= visible;
|
||||
}
|
||||
|
||||
// =============== MISC =========================
|
||||
void ParticleSystem::fade(){
|
||||
assert(state==sPlay);
|
||||
state= sFade;
|
||||
if(particleObserver!=NULL){
|
||||
particleObserver->update(this);
|
||||
}
|
||||
}
|
||||
|
||||
int ParticleSystem::isEmpty() const{
|
||||
assert(aliveParticleCount>=0);
|
||||
return aliveParticleCount==0 && state!=sPause;
|
||||
}
|
||||
|
||||
// =============== PROTECTED =========================
|
||||
|
||||
// if there is one dead particle it returns it else, return the particle with
|
||||
// less energy
|
||||
Particle * ParticleSystem::createParticle(){
|
||||
|
||||
//if any dead particles
|
||||
if(aliveParticleCount<particleCount){
|
||||
++aliveParticleCount;
|
||||
return &particles[aliveParticleCount-1];
|
||||
}
|
||||
|
||||
//if not
|
||||
int minEnergy= particles[0].energy;
|
||||
int minEnergyParticle= 0;
|
||||
|
||||
for(int i=0; i<particleCount; ++i){
|
||||
if(particles[i].energy<minEnergy){
|
||||
minEnergy= particles[i].energy;
|
||||
minEnergyParticle= i;
|
||||
}
|
||||
}
|
||||
|
||||
return &particles[minEnergyParticle];
|
||||
}
|
||||
|
||||
void ParticleSystem::initParticle(Particle *p, int particleIndex){
|
||||
p->pos= pos;
|
||||
p->lastPos= p->pos;
|
||||
p->speed= Vec3f(0.0f);
|
||||
p->accel= Vec3f(0.0f);
|
||||
p->color= Vec4f(1.0f, 1.0f, 1.0f, 1.0);
|
||||
p->size= particleSize;
|
||||
p->energy= maxParticleEnergy + random.randRange(-varParticleEnergy, varParticleEnergy);
|
||||
}
|
||||
|
||||
void ParticleSystem::updateParticle(Particle *p){
|
||||
p->lastPos= p->pos;
|
||||
p->pos= p->pos + p->speed;
|
||||
p->speed= p->speed + p->accel;
|
||||
p->energy--;
|
||||
}
|
||||
|
||||
bool ParticleSystem::deathTest(Particle *p){
|
||||
return p->energy <= 0;
|
||||
}
|
||||
|
||||
void ParticleSystem::killParticle(Particle *p){
|
||||
aliveParticleCount--;
|
||||
}
|
||||
|
||||
void ParticleSystem::setFactionColor(Vec3f factionColor){
|
||||
this->factionColor=factionColor;
|
||||
Vec3f tmpCol;
|
||||
|
||||
if(teamcolorEnergy)
|
||||
{
|
||||
this->color=Vec4f(factionColor.x,factionColor.y,factionColor.z,this->color.w);
|
||||
}
|
||||
if(teamcolorNoEnergy)
|
||||
{
|
||||
this->colorNoEnergy=Vec4f(factionColor.x,factionColor.y,factionColor.z,this->colorNoEnergy.w);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ===========================================================================
|
||||
// FireParticleSystem
|
||||
// ===========================================================================
|
||||
|
||||
|
||||
FireParticleSystem::FireParticleSystem(int particleCount): ParticleSystem(particleCount){
|
||||
|
||||
radius= 0.5f;
|
||||
speed= 0.01f;
|
||||
windSpeed= Vec3f(0.0f);
|
||||
|
||||
setParticleSize(0.6f);
|
||||
setColorNoEnergy(Vec4f(1.0f, 0.5f, 0.0f, 1.0f));
|
||||
}
|
||||
|
||||
void FireParticleSystem::initParticle(Particle *p, int particleIndex){
|
||||
ParticleSystem::initParticle(p, particleIndex);
|
||||
|
||||
float ang= random.randRange(-2.0f*pi, 2.0f*pi);
|
||||
float mod= fabsf(random.randRange(-radius, radius));
|
||||
|
||||
float x= sinf(ang)*mod;
|
||||
float y= cosf(ang)*mod;
|
||||
|
||||
float radRatio= sqrtf(sqrtf(mod/radius));
|
||||
|
||||
p->color= colorNoEnergy*0.5f + colorNoEnergy*0.5f*radRatio;
|
||||
p->energy= static_cast<int>(maxParticleEnergy*radRatio) + random.randRange(-varParticleEnergy, varParticleEnergy);
|
||||
p->pos= Vec3f(pos.x+x, pos.y+random.randRange(-radius/2, radius/2), pos.z+y);
|
||||
p->lastPos= pos;
|
||||
p->size= particleSize;
|
||||
p->speed= Vec3f(0, speed+speed*random.randRange(-0.5f, 0.5f), 0) + windSpeed;
|
||||
}
|
||||
|
||||
void FireParticleSystem::updateParticle(Particle *p){
|
||||
p->lastPos= p->pos;
|
||||
p->pos= p->pos+p->speed;
|
||||
p->energy--;
|
||||
|
||||
if(p->color.x>0.0f)
|
||||
p->color.x*= 0.98f;
|
||||
if(p->color.y>0.0f)
|
||||
p->color.y*= 0.98f;
|
||||
if(p->color.w>0.0f)
|
||||
p->color.w*= 0.98f;
|
||||
|
||||
p->speed.x*=1.001f;
|
||||
|
||||
}
|
||||
|
||||
// ================= SET PARAMS ====================
|
||||
|
||||
void FireParticleSystem::setRadius(float radius){
|
||||
this->radius= radius;
|
||||
}
|
||||
|
||||
void FireParticleSystem::setWind(float windAngle, float windSpeed){
|
||||
this->windSpeed.x= sinf(degToRad(windAngle))*windSpeed;
|
||||
this->windSpeed.y= 0.0f;
|
||||
this->windSpeed.z= cosf(degToRad(windAngle))*windSpeed;
|
||||
}
|
||||
|
||||
|
||||
// ===========================================================================
|
||||
// UnitParticleSystem
|
||||
// ===========================================================================
|
||||
|
||||
UnitParticleSystem::UnitParticleSystem(int particleCount): ParticleSystem(particleCount){
|
||||
|
||||
radius= 0.5f;
|
||||
speed= 0.01f;
|
||||
windSpeed= Vec3f(0.0f);
|
||||
|
||||
setParticleSize(0.6f);
|
||||
setColorNoEnergy(Vec4f(1.0f, 0.5f, 0.0f, 1.0f));
|
||||
|
||||
primitive= pQuad;
|
||||
offset= Vec3f(0.0f);
|
||||
direction= Vec3f(0.0f,1.0f,0.0f);
|
||||
gravity= 0.0f;
|
||||
|
||||
fixed=false;
|
||||
rotation=0.0f;
|
||||
relativeDirection=true;
|
||||
|
||||
cRotation= Vec3f(1.0f,1.0f,1.0f);
|
||||
fixedAddition = Vec3f(0.0f,0.0f,0.0f);
|
||||
|
||||
}
|
||||
|
||||
void UnitParticleSystem::render(ParticleRenderer *pr,ModelRenderer *mr){
|
||||
//if(active){
|
||||
switch(primitive){
|
||||
case pQuad:
|
||||
pr->renderSystem(this);
|
||||
break;
|
||||
case pLine:
|
||||
pr->renderSystemLine(this);
|
||||
break;
|
||||
default:
|
||||
assert(false);
|
||||
}
|
||||
//}
|
||||
}
|
||||
|
||||
UnitParticleSystem::Primitive UnitParticleSystem::strToPrimitive(const string &str){
|
||||
if(str=="quad"){
|
||||
return pQuad;
|
||||
}
|
||||
else if(str=="line"){
|
||||
return pLine;
|
||||
}
|
||||
else{
|
||||
throw "Unknown particle primitive: " + str;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void UnitParticleSystem::initParticle(Particle *p, int particleIndex){
|
||||
ParticleSystem::initParticle(p, particleIndex);
|
||||
|
||||
float ang= random.randRange(-2.0f*pi, 2.0f*pi);
|
||||
float mod= fabsf(random.randRange(-radius, radius));
|
||||
|
||||
float x= sinf(ang)*mod;
|
||||
float y= cosf(ang)*mod;
|
||||
|
||||
float radRatio= sqrtf(sqrtf(mod/radius));
|
||||
|
||||
//p->color= color*0.5f + color*0.5f*radRatio;
|
||||
p->color=color;
|
||||
p->energy= static_cast<int>(maxParticleEnergy*radRatio) + random.randRange(-varParticleEnergy, varParticleEnergy);
|
||||
|
||||
p->lastPos= pos;
|
||||
oldPosition=pos;
|
||||
p->size= particleSize;
|
||||
|
||||
p->speed= Vec3f(direction.x+direction.x*random.randRange(-0.5f, 0.5f),
|
||||
direction.y+direction.y*random.randRange(-0.5f, 0.5f),
|
||||
direction.z+direction.z*random.randRange(-0.5f, 0.5f));
|
||||
p->speed= p->speed * speed;
|
||||
p->accel= Vec3f(0.0f, -gravity, 0.0f);
|
||||
|
||||
if(!relative){
|
||||
p->pos= Vec3f(pos.x+x+offset.x, pos.y+random.randRange(-radius/2, radius/2)+offset.y, pos.z+y+offset.z);
|
||||
}
|
||||
else
|
||||
{// rotate it according to rotation
|
||||
float rad=degToRad(rotation);
|
||||
p->pos= Vec3f(pos.x+x+offset.z*sinf(rad)+offset.x*cosf(rad), pos.y+random.randRange(-radius/2, radius/2)+offset.y, pos.z+y+(offset.z*cosf(rad)-offset.x*sinf(rad)));
|
||||
if(relativeDirection){
|
||||
p->speed=Vec3f(p->speed.z*sinf(rad)+p->speed.x*cosf(rad),p->speed.y,(p->speed.z*cosf(rad)-p->speed.x*sinf(rad)));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void UnitParticleSystem::update(){
|
||||
if(fixed)
|
||||
{
|
||||
fixedAddition= Vec3f(pos.x-oldPosition.x,pos.y-oldPosition.y,pos.z-oldPosition.z);
|
||||
oldPosition=pos;
|
||||
}
|
||||
ParticleSystem::update();
|
||||
}
|
||||
|
||||
void UnitParticleSystem::updateParticle(Particle *p){
|
||||
|
||||
float energyRatio= clamp(static_cast<float>(p->energy)/maxParticleEnergy, 0.f, 1.f);
|
||||
|
||||
p->lastPos+= p->speed;
|
||||
p->pos+= p->speed;
|
||||
if(fixed)
|
||||
{
|
||||
p->lastPos+= fixedAddition;
|
||||
p->pos+= fixedAddition;
|
||||
}
|
||||
p->speed+= p->accel;
|
||||
p->color = color * energyRatio + colorNoEnergy * (1.0f-energyRatio);
|
||||
p->size = particleSize * energyRatio + sizeNoEnergy * (1.0f-energyRatio);
|
||||
p->energy--;
|
||||
|
||||
/*
|
||||
p->lastPos= p->pos;
|
||||
p->pos= p->pos+p->speed;
|
||||
p->energy--;
|
||||
|
||||
if(p->color.x>0.0f)
|
||||
p->color.x*= 0.98f;
|
||||
if(p->color.y>0.0f)
|
||||
p->color.y*= 0.98f;
|
||||
if(p->color.w>0.0f)
|
||||
p->color.w*= 0.98f;
|
||||
|
||||
p->speed.x*=1.001f;
|
||||
*/
|
||||
|
||||
}
|
||||
|
||||
// ================= SET PARAMS ====================
|
||||
|
||||
void UnitParticleSystem::setRadius(float radius){
|
||||
this->radius= radius;
|
||||
}
|
||||
|
||||
void UnitParticleSystem::setWind(float windAngle, float windSpeed){
|
||||
this->windSpeed.x= sinf(degToRad(windAngle))*windSpeed;
|
||||
this->windSpeed.y= 0.0f;
|
||||
this->windSpeed.z= cosf(degToRad(windAngle))*windSpeed;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
// ===========================================================================
|
||||
// RainParticleSystem
|
||||
// ===========================================================================
|
||||
|
||||
|
||||
RainParticleSystem::RainParticleSystem(int particleCount):ParticleSystem(particleCount){
|
||||
setWind(0.0f, 0.0f);
|
||||
setRadius(20.0f);
|
||||
|
||||
setEmissionRate(25);
|
||||
setParticleSize(3.0f);
|
||||
setColor(Vec4f(0.5f, 0.5f, 0.5f, 0.3f));
|
||||
setSpeed(0.2f);
|
||||
}
|
||||
|
||||
void RainParticleSystem::render(ParticleRenderer *pr, ModelRenderer *mr){
|
||||
pr->renderSystemLineAlpha(this);
|
||||
}
|
||||
|
||||
void RainParticleSystem::initParticle(Particle *p, int particleIndex){
|
||||
ParticleSystem::initParticle(p, particleIndex);
|
||||
|
||||
float x= random.randRange(-radius, radius);
|
||||
float y= random.randRange(-radius, radius);
|
||||
|
||||
p->color= color;
|
||||
p->energy= 10000;
|
||||
p->pos= Vec3f(pos.x+x, pos.y, pos.z+y);
|
||||
p->lastPos= p->pos;
|
||||
p->speed= Vec3f(random.randRange(-speed/10, speed/10), -speed, random.randRange(-speed/10, speed/10)) + windSpeed;
|
||||
}
|
||||
|
||||
bool RainParticleSystem::deathTest(Particle *p){
|
||||
return p->pos.y<0;
|
||||
}
|
||||
|
||||
void RainParticleSystem::setRadius(float radius){
|
||||
this->radius= radius;
|
||||
|
||||
}
|
||||
|
||||
void RainParticleSystem::setWind(float windAngle, float windSpeed){
|
||||
this->windSpeed.x= sinf(degToRad(windAngle))*windSpeed;
|
||||
this->windSpeed.y= 0.0f;
|
||||
this->windSpeed.z= cosf(degToRad(windAngle))*windSpeed;
|
||||
}
|
||||
|
||||
// ===========================================================================
|
||||
// SnowParticleSystem
|
||||
// ===========================================================================
|
||||
|
||||
SnowParticleSystem::SnowParticleSystem(int particleCount):ParticleSystem(particleCount){
|
||||
setWind(0.0f, 0.0f);
|
||||
setRadius(30.0f);
|
||||
|
||||
setEmissionRate(2);
|
||||
setParticleSize(0.2f);
|
||||
setColor(Vec4f(0.8f, 0.8f, 0.8f, 0.8f));
|
||||
setSpeed(0.05f);
|
||||
}
|
||||
|
||||
void SnowParticleSystem::initParticle(Particle *p, int particleIndex){
|
||||
|
||||
ParticleSystem::initParticle(p, particleIndex);
|
||||
|
||||
float x= random.randRange(-radius, radius);
|
||||
float y= random.randRange(-radius, radius);
|
||||
|
||||
p->color= color;
|
||||
p->energy= 10000;
|
||||
p->pos= Vec3f(pos.x+x, pos.y, pos.z+y);
|
||||
p->lastPos= p->pos;
|
||||
p->speed= Vec3f(0.0f, -speed, 0.0f) + windSpeed;
|
||||
p->speed.x+= random.randRange(-0.005f, 0.005f);
|
||||
p->speed.y+= random.randRange(-0.005f, 0.005f);
|
||||
}
|
||||
|
||||
bool SnowParticleSystem::deathTest(Particle *p){
|
||||
return p->pos.y<0;
|
||||
}
|
||||
|
||||
void SnowParticleSystem::setRadius(float radius){
|
||||
this->radius= radius;
|
||||
}
|
||||
|
||||
void SnowParticleSystem::setWind(float windAngle, float windSpeed){
|
||||
this->windSpeed.x= sinf(degToRad(windAngle))*windSpeed;
|
||||
this->windSpeed.y= 0.0f;
|
||||
this->windSpeed.z= cosf(degToRad(windAngle))*windSpeed;
|
||||
}
|
||||
|
||||
// ===========================================================================
|
||||
// AttackParticleSystem
|
||||
// ===========================================================================
|
||||
|
||||
AttackParticleSystem::AttackParticleSystem(int particleCount): ParticleSystem(particleCount){
|
||||
model= NULL;
|
||||
primitive= pQuad;
|
||||
offset= Vec3f(0.0f);
|
||||
gravity= 0.0f;
|
||||
direction= Vec3f(1.0f, 0.0f, 0.0f);
|
||||
}
|
||||
|
||||
void AttackParticleSystem::render(ParticleRenderer *pr, ModelRenderer *mr){
|
||||
if(active){
|
||||
if(model!=NULL){
|
||||
pr->renderSingleModel(this, mr);
|
||||
}
|
||||
switch(primitive){
|
||||
case pQuad:
|
||||
pr->renderSystem(this);
|
||||
break;
|
||||
case pLine:
|
||||
pr->renderSystemLine(this);
|
||||
break;
|
||||
default:
|
||||
assert(false);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
AttackParticleSystem::Primitive AttackParticleSystem::strToPrimitive(const string &str){
|
||||
if(str=="quad"){
|
||||
return pQuad;
|
||||
}
|
||||
else if(str=="line"){
|
||||
return pLine;
|
||||
}
|
||||
else{
|
||||
throw "Unknown particle primitive: " + str;
|
||||
}
|
||||
}
|
||||
|
||||
// ===========================================================================
|
||||
// ProjectileParticleSystem
|
||||
// ===========================================================================
|
||||
|
||||
ProjectileParticleSystem::ProjectileParticleSystem(int particleCount): AttackParticleSystem(particleCount){
|
||||
setEmissionRate(20);
|
||||
setColor(Vec4f(1.0f, 0.3f, 0.0f, 0.5f));
|
||||
setMaxParticleEnergy(100);
|
||||
setVarParticleEnergy(50);
|
||||
setParticleSize(0.4f);
|
||||
setSpeed(0.14f);
|
||||
|
||||
trajectory= tLinear;
|
||||
trajectorySpeed= 1.0f;
|
||||
trajectoryScale= 1.0f;
|
||||
trajectoryFrequency = 1.0f;
|
||||
|
||||
nextParticleSystem= NULL;
|
||||
}
|
||||
|
||||
ProjectileParticleSystem::~ProjectileParticleSystem(){
|
||||
if(nextParticleSystem!=NULL){
|
||||
nextParticleSystem->prevParticleSystem= NULL;
|
||||
}
|
||||
}
|
||||
|
||||
void ProjectileParticleSystem::link(SplashParticleSystem *particleSystem){
|
||||
nextParticleSystem= particleSystem;
|
||||
nextParticleSystem->setState(sPause);
|
||||
nextParticleSystem->prevParticleSystem= this;
|
||||
}
|
||||
|
||||
void ProjectileParticleSystem::update(){
|
||||
|
||||
if(state==sPlay){
|
||||
|
||||
lastPos= pos;
|
||||
flatPos+= zVector * trajectorySpeed;
|
||||
Vec3f targetVector= endPos - startPos;
|
||||
Vec3f currentVector= flatPos - startPos;
|
||||
|
||||
// ratio
|
||||
float t= clamp(currentVector.length() / targetVector.length(), 0.0f, 1.0f);
|
||||
|
||||
// trajectory
|
||||
switch(trajectory){
|
||||
case tLinear:
|
||||
{
|
||||
pos= flatPos;
|
||||
}
|
||||
break;
|
||||
|
||||
case tParabolic:
|
||||
{
|
||||
float scaledT= 2.0f * (t-0.5f);
|
||||
float paraboleY= (1.0f-scaledT*scaledT) * trajectoryScale;
|
||||
|
||||
pos = flatPos;
|
||||
pos.y+= paraboleY;
|
||||
}
|
||||
break;
|
||||
|
||||
case tSpiral:
|
||||
{
|
||||
pos= flatPos;
|
||||
pos+= xVector * cos(t*trajectoryFrequency*targetVector.length())*trajectoryScale;
|
||||
pos+= yVector * sin(t*trajectoryFrequency*targetVector.length())*trajectoryScale;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
assert(false);
|
||||
}
|
||||
|
||||
direction= pos - lastPos;
|
||||
direction.normalize();
|
||||
|
||||
//arrive destination
|
||||
if( flatPos.dist(endPos)<0.5f ){
|
||||
state= sFade;
|
||||
model= NULL;
|
||||
|
||||
if(particleObserver!=NULL){
|
||||
particleObserver->update(this);
|
||||
}
|
||||
|
||||
if(nextParticleSystem!=NULL){
|
||||
nextParticleSystem->setState(sPlay);
|
||||
nextParticleSystem->setPos(endPos);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ParticleSystem::update();
|
||||
}
|
||||
|
||||
void ProjectileParticleSystem::initParticle(Particle *p, int particleIndex){
|
||||
|
||||
ParticleSystem::initParticle(p, particleIndex);
|
||||
|
||||
float t= static_cast<float>(particleIndex)/emissionRate;
|
||||
|
||||
p->pos= pos + (lastPos - pos) * t;
|
||||
p->lastPos= lastPos;
|
||||
p->speed= Vec3f(random.randRange(-0.1f, 0.1f), random.randRange(-0.1f, 0.1f), random.randRange(-0.1f, 0.1f)) * speed;
|
||||
p->accel= Vec3f(0.0f, -gravity, 0.0f);
|
||||
|
||||
updateParticle(p);
|
||||
}
|
||||
|
||||
void ProjectileParticleSystem::updateParticle(Particle *p){
|
||||
float energyRatio= clamp(static_cast<float>(p->energy)/maxParticleEnergy, 0.f, 1.f);
|
||||
|
||||
p->lastPos+= p->speed;
|
||||
p->pos+= p->speed;
|
||||
p->speed+= p->accel;
|
||||
p->color = color * energyRatio + colorNoEnergy * (1.0f-energyRatio);
|
||||
p->size = particleSize * energyRatio + sizeNoEnergy * (1.0f-energyRatio);
|
||||
p->energy--;
|
||||
}
|
||||
|
||||
void ProjectileParticleSystem::setPath(Vec3f startPos, Vec3f endPos){
|
||||
|
||||
//compute axis
|
||||
zVector= endPos - startPos;
|
||||
zVector.normalize();
|
||||
yVector= Vec3f(0.0f, 1.0f, 0.0f);
|
||||
xVector= zVector.cross(yVector);
|
||||
|
||||
//apply offset
|
||||
startPos+= xVector * offset.x;
|
||||
startPos+= yVector * offset.y;
|
||||
startPos+= zVector * offset.z;
|
||||
|
||||
pos= startPos;
|
||||
lastPos= startPos;
|
||||
flatPos= startPos;
|
||||
|
||||
//recompute axis
|
||||
zVector= endPos - startPos;
|
||||
zVector.normalize();
|
||||
yVector= Vec3f(0.0f, 1.0f, 0.0f);
|
||||
xVector= zVector.cross(yVector);
|
||||
|
||||
// set members
|
||||
this->startPos= startPos;
|
||||
this->endPos= endPos;
|
||||
}
|
||||
|
||||
ProjectileParticleSystem::Trajectory ProjectileParticleSystem::strToTrajectory(const string &str){
|
||||
if(str=="linear"){
|
||||
return tLinear;
|
||||
}
|
||||
else if(str=="parabolic"){
|
||||
return tParabolic;
|
||||
}
|
||||
else if(str=="spiral"){
|
||||
return tSpiral;
|
||||
}
|
||||
else{
|
||||
throw "Unknown particle system trajectory: " + str;
|
||||
}
|
||||
}
|
||||
|
||||
// ===========================================================================
|
||||
// SplashParticleSystem
|
||||
// ===========================================================================
|
||||
|
||||
SplashParticleSystem::SplashParticleSystem(int particleCount): AttackParticleSystem(particleCount){
|
||||
setColor(Vec4f(1.0f, 0.3f, 0.0f, 0.8f));
|
||||
setMaxParticleEnergy(100);
|
||||
setVarParticleEnergy(50);
|
||||
setParticleSize(1.0f);
|
||||
setSpeed(0.003f);
|
||||
|
||||
prevParticleSystem= NULL;
|
||||
|
||||
emissionRateFade= 1;
|
||||
verticalSpreadA= 1.0f;
|
||||
verticalSpreadB= 0.0f;
|
||||
horizontalSpreadA= 1.0f;
|
||||
horizontalSpreadB= 0.0f;
|
||||
}
|
||||
|
||||
SplashParticleSystem::~SplashParticleSystem(){
|
||||
if(prevParticleSystem!=NULL){
|
||||
prevParticleSystem->nextParticleSystem= NULL;
|
||||
}
|
||||
}
|
||||
|
||||
void SplashParticleSystem::update(){
|
||||
ParticleSystem::update();
|
||||
if(state!=sPause){
|
||||
emissionRate-= emissionRateFade;
|
||||
}
|
||||
}
|
||||
|
||||
void SplashParticleSystem::initParticle(Particle *p, int particleIndex){
|
||||
p->pos= pos;
|
||||
p->lastPos= p->pos;
|
||||
p->energy= maxParticleEnergy;
|
||||
p->size= particleSize;
|
||||
p->color= color;
|
||||
|
||||
p->speed= Vec3f(
|
||||
horizontalSpreadA * random.randRange(-1.0f, 1.0f) + horizontalSpreadB,
|
||||
verticalSpreadA * random.randRange(-1.0f, 1.0f) + verticalSpreadB,
|
||||
horizontalSpreadA * random.randRange(-1.0f, 1.0f) + horizontalSpreadB);
|
||||
p->speed.normalize();
|
||||
p->speed= p->speed * speed;
|
||||
|
||||
p->accel= Vec3f(0.0f, -gravity, 0.0f);
|
||||
}
|
||||
|
||||
void SplashParticleSystem::updateParticle(Particle *p){
|
||||
float energyRatio= clamp(static_cast<float>(p->energy)/maxParticleEnergy, 0.f, 1.f);
|
||||
|
||||
p->lastPos= p->pos;
|
||||
p->pos= p->pos + p->speed;
|
||||
p->speed= p->speed + p->accel;
|
||||
p->energy--;
|
||||
p->color = color * energyRatio + colorNoEnergy * (1.0f-energyRatio);
|
||||
p->size = particleSize * energyRatio + sizeNoEnergy * (1.0f-energyRatio);
|
||||
}
|
||||
|
||||
// ===========================================================================
|
||||
// ParticleManager
|
||||
// ===========================================================================
|
||||
|
||||
ParticleManager::~ParticleManager(){
|
||||
end();
|
||||
}
|
||||
|
||||
void ParticleManager::render(ParticleRenderer *pr, ModelRenderer *mr) const{
|
||||
list<ParticleSystem*>::const_iterator it;
|
||||
|
||||
for (it=particleSystems.begin(); it!=particleSystems.end(); it++){
|
||||
if((*it)->getVisible()){
|
||||
(*it)->render(pr, mr);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void ParticleManager::update(){
|
||||
list<ParticleSystem*>::iterator it;
|
||||
|
||||
for (it=particleSystems.begin(); it!=particleSystems.end(); it++){
|
||||
(*it)->update();
|
||||
if((*it)->isEmpty()){
|
||||
delete *it;
|
||||
*it= NULL;
|
||||
}
|
||||
}
|
||||
particleSystems.remove(NULL);
|
||||
}
|
||||
|
||||
void ParticleManager::manage(ParticleSystem *ps){
|
||||
particleSystems.push_back(ps);
|
||||
}
|
||||
|
||||
void ParticleManager::end(){
|
||||
while(!particleSystems.empty()){
|
||||
delete particleSystems.front();
|
||||
particleSystems.pop_front();
|
||||
}
|
||||
}
|
||||
|
||||
}}//end namespace
|
||||
Reference in New Issue
Block a user