beyler koşun konu uplayan kod yazdım

import traer. physics.*;

particlesystem psys;
particle p1,p2,p3,p4;
spring s,t,u;
float centerx, centery;

void setup()
{
colormode(hsb);
size (600,600);
smooth();
background(230);
stroke(0,20);
strokeweight(1);
psys= new particlesystem(0.0035,0.00001);
p1=psys. makeparticle(10*random(0.6,1.4),50,height,0);
p2=psys. makeparticle(10*random(0.6,1.4),200,height,0);
p3=psys. makeparticle(10*random(0.6,1.4),400,height,0);
p4=psys. makeparticle(10*random(0.6,1.4),550,height,0);
s=psys. makespring(p1,p2,0.001,0.001,100+random(-20,20));
t=psys. makespring(p2,p3,0.001,0.001,100+random(-20,20));
u=psys. makespring(p4,p3,0.001,0.001,100+random(-20,20));
p1.makefree();
p2.makefree();
p3.makefree();
p4.makefree();
p1.velocity().set(random(-0.6,0.6),-random(0.3,0.8),0);
p2.velocity().set(random(-0.6,0.6),-random(0.5,0.8),0);
p3.velocity().set(random(-0.6,0.6),-random(0.5,0.8),0);
p4.velocity().set(random(-0.6,0.6),-random(0.3,0.8),0);
nofill();
}

void draw(){
psys. tick();
stroke(abs(p2.position().x()-p3.position().x()), constrain(0.3* abs(p3.position().x()-p4.position().y()),30,100), constrain(abs(p3.position().x()-p4.position().y()),0,150),20);

curve(0,height/2,p1.position().x(),p1.position().y(),p2.position().x(),p2.position().y(),p3.position().x(),p3.position().y());

curve(p1.position().x(),p1.position().y(),p2.position().x(),p2.position().y(),p3.position().x(),p3.position().y(),p4.position().x(),p4.position().y());

curve(p2.position().x(),p2.position().y(),p3.position().x(),p3.position().y(),p4.position().x(),p4.position().y(),width, height/2);

handleboundarycollisions(p1);
handleboundarycollisions(p2);
handleboundarycollisions(p3);
handleboundarycollisions(p4);
}
void mousereleased(){
setup();
}
void handleboundarycollisions( particle p )
{
if ( p.position().x() < 0 || p.position().x() > width )
p.velocity().set( -0.95*p.velocity().x(), p.velocity().y(), 0 );
if ( p.position().y() < 0 || p.position().y() > height )
p.velocity().set( p.velocity().x(), -0.95*p.velocity().y(), 0 );
p.position().set( constrain( p.position().x(), 0, width ), constrain( p.position().y(), 0, height ), 0 );