class Cube extends Particle { 
color ccolor; 
int sizeX = 20; 
int sizeY = 20; 
int sizeZ = 20; 

Cube(float x,float y, float z) {
} 

public Cube(String type) {
if ( type == "target") {
ccolor = #FFF000; 
sizeX = 100;
sizeY = 100;
sizeZ = 100;
} 
else if (type == "mouseCube") { 
ccolor = #77D8FF; 
sizeX = 10; 
sizeY = 10; 
sizeZ = 200;
} 
else if (type == "mCube") { 
ccolor = #00FF00; 
sizeX = 10; 
sizeY = 10; 
sizeZ = 75; 
} 
else {
ccolor = color(random(255),random(255),random(255));
sizeX = 15; 
sizeY = 15; 
sizeZ = 15; 
} 
} 
void draw() { 
push(); 
translate(pos[0], pos[1], pos[2]);

fill(ccolor); 
box(sizeX, sizeY, sizeZ); 

pop();
} 
} 
//int MAX_PARTS = 8;
int nParts = 0; 
int nPartsb = 0;
int CREATE_GAP = 100; 
PSystem ps; 

Cube parts[] = new Cube[50];
Cube partsb[] = new Cube[50]; 
Cube a; 
Cube mPart; 
Cube f[] = new Cube[20];
Cube r; 
Cube s; 
Cube t; 
Cube u; 
void setup() {
size(800,800);
ps = (PSystem)loadPlugin("PSystem");

a = new Cube("mouseCube");
a.setPos(width/2, height/2 - 50, 0);
a.fix(2,0); 
ps.addParticle(a);

r =new Cube("mCube"); 
r.setPos(400,375,0);
ps.addParticle(r);
r.fix();

mPart = new Cube("target"); 
mPart.setPos(0, height/2, 20);
ps.addParticle(mPart);
ps.addMagnet(mPart, 50000); 

a.enableCollision(100); 
mPart.enableCollision(50);

for (int i=0;i<20;i++) {
f[i]=new Cube(" "); 
f[i].ccolor = color(200,0,0); 
f[i].setPos(mouseX+i*20,mouseY,0);
ps.addParticle(f[i]); 
if (i==0) { 
ps.addSpring(a,f[i],2,1,1); 
} 
else ps.addSpring(f[i-1],f[i],2,1,1); 
f[i].enableCollision(100);
} 
ps.addSpring(r,mPart,.01,.1,10);
ps.setGravity(0, .3, 0);
ps.drag = .01;
} 
void mouseDragged() { 
a.setPos(mouseX, mouseY, 0);
} 

void mousePressed() { 
a.setPos(mouseX, mouseY, 0);
} 
void createPart() { 
if (nParts < 50) {
parts[nParts] = new Cube(" ");
parts[nParts] = new Cube(width/2, 0, 0);
ps.addParticle(parts[nParts]);
parts[nParts].pos[0]=800; 
parts[nParts].pos[1]=50;
parts[nParts].pos[2]=0; 

parts[nParts].velocity[0]=random(-50);
parts[nParts].velocity[1]=random(-40);
parts[nParts].enableCollision(20);
 // parts[nParts].fix(2,0); 

nParts++; 
} 
else {
parts[nParts % 50].setPos(width/2, 0, 0); 
nParts++; 
} 
} 
void createPartb() {
if (nPartsb < 50) { 
parts[nPartsb] = new Cube(" "); 
parts[nPartsb] = new Cube(width/2, 0, 0); 
 ps.addParticle(parts[nPartsb]); 
parts[nPartsb].pos[0]=0;
parts[nPartsb].pos[1]=100;
parts[nPartsb].pos[2]=0;

parts[nPartsb].velocity[0]=random(35);
parts[nPartsb].velocity[1]=random(-25); 
parts[nPartsb].enableCollision(20); 
 // parts[nPartsb].fix(2,0);

nPartsb++;
} 
else {
parts[nPartsb % 50].setPos(width/2, 0, 0);
nPartsb++;
} 
} 
int skipLoops=5;
void loop() { 
if (frame % skipLoops == 0) { 
createPart(); 
createPartb();
} 
background(#0FFFFF);
a.setPos(mouseX, mouseY, 0);
stroke(0, 0, 0, 0); 
fill(255, 0, 0);
ps.draw();
}