int x = 0;
int y = 0;
int humeur = 0;
int sens = 1;

void setup(){
  size(800,600);
  background(255);
  frameRate(1000);
}

void draw(){
  stroke(255,0,0);
  y = 0;
  for(int i=0; i<height; i+= 0){
    humeur = int(random(height/10));
    y += int (random(humeur));
    i=y;
    int test = int(random(2));
    if(test==0){
      stroke(255,255,255);
      for(int a=0; a<int(random(20,100)); a++){
        point(x+a,y);
        point(x-a,y);
      }
      stroke(255,0,0);
    }
    else{
      stroke(255,255,255);
      for(int b=0; b<int(random(20,100)); b++){
        point(x,y-b);
        point(x,y+b);
      }
      stroke(255,0,0); 
    }
    point(x,y);
  }
  x+= humeur;
  if((x>width) || (x<0)){
    x=0;
  }

}