Pixel War

int step = 5;

int sz = 1;

int totalParticles = 5000;

float x[] = new float[totalParticles];

float y[] = new float[totalParticles];

​

void setup() {

  size(400,400);

  x[0] = width/2;

  y[0] = height/2;

}

​

​

void draw() {

  background(0);

  for ( int i = 0; i< totalParticles; i++) {

    randomMove(i);

    checkBorders(i);

    display(i);

  }

}

​

void checkBorders(int i) {

    // Comprobamos bordes

  if ( x[i] < 0 ) {

   x[i] = width;

  }

  if ( x[i] > width ) {

   x[i] = 0;

  }

  if ( y[i] < 0 ) {

   y[i] = height;

  }

  if ( y[i] > height ) {

   y[i] = 0;

  }

  /*

  x = constrain(x,0,width);

  y = constrain(y,0,height);  

  */  

}

​

void randomMove(int i) {

    //Movimiento Random Walker

  float r = random(100);

  if ( r < 25 ){

   //derecha

   x[i] += step; 

  } else if ( r< 50 ) {

    //izquierda

   x[i] -= step; 

  } else if ( r<75 ) {

    //Arriba

   y[i]  += step; 

  }else {

    //Abajo

   y[i] -= step; 

  }

}

​

void display(int i) {

 fill(255);

 stroke(255);

 strokeWeight(0.001);

​

 // La posicion depende del mouse

 //line(x[i]-sz,y[i]-sz,x[i]+sz,y[i]+sz);

 //line(x[i]-sz,y[i]+sz,x[i]+sz,y[i]-sz);

​

 ellipse(x[i],y[i],sz,sz);  

}

​

​