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R10470/milestone3/TangibleGame/ParticleSystem.pde
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ParticleSystem.pde
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class ParticleSystem {
PGraphics target;
ArrayList <Particle> particles = new ArrayList ();
PVector center ;
public ParticleSystem (PGraphics target, PVector center) {
this.target = target;
this.center = center;
}
public void run () {
int modulo = frameCount % cylSpawnFrame ;
for(int i=particles.size()-1; i>=0;i--){
Particle pa = particles.get(i);
if (this.checkOverlap(pa.center,ballMov.location,BALL_RADIUS+CylinderDrawer.CYLINDER_BASE_SIZE))
particles.remove(i);
}
for(int i=particles.size()-1; i>=0;i--){
Particle pa = particles.get(i);
pa.run();
if (pa.isDead){
if ((pa.center.x == center.x) && (pa.center.y == center.y))
won = true;
particles.remove(i);
scoreKill();
}
}
if(!particles.isEmpty() && modulo == 0 && ! addingCylindersModeOn) {
addParticle();
}
}
void addCenter () {
Particle particle = new Particle(center, 20, target);
particles.add(particle);
}
void addParticle() {
PVector center;
int numAttempts = 100;
for(int i=0; i<numAttempts; i++) {
// Pick a cylinder and its center.
int index = int(random(particles.size()));
center = particles.get(index).center.copy();
// Try to add an adjacent cylinder.
float angle = random(TWO_PI);
center.x += sin(angle) * 2 * CylinderDrawer.CYLINDER_BASE_SIZE;
center.y += cos(angle) * 2 * CylinderDrawer.CYLINDER_BASE_SIZE;
if(checkPositionValid(center)) {
if(!checkOverlap(center,ballMov.location,BALL_RADIUS+CylinderDrawer.CYLINDER_BASE_SIZE)){
scoreSpawn();
particles.add(new Particle(center,CylinderDrawer.CYLINDER_BASE_SIZE, target));
}
break;
}
}
}
boolean checkPositionValid (PVector position) {
for (Particle p : particles) {
if (checkOverlap (position, p.center, 2*CylinderDrawer.CYLINDER_BASE_SIZE )) {
return false;
}
}
return (position.x >= -BOX_DIM_X/2 + CylinderDrawer.CYLINDER_BASE_SIZE && position.x <= BOX_DIM_X/2 -CylinderDrawer.CYLINDER_BASE_SIZE)
&& ( position.y >= -BOX_DIM_Z/2 + CylinderDrawer.CYLINDER_BASE_SIZE && position.y <= BOX_DIM_Z/2 - CylinderDrawer.CYLINDER_BASE_SIZE);
}
boolean checkOverlap(PVector first,PVector second, float limit ){
return PVector.sub(first,second).mag() <= limit ;
}
}
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