int p;
float horizon; 
float x= 200; 
float y= 300;
float h= 10;
float w= 15;
float wavesX= -100;
float wavesY = horizon; 
float pairs = random (2,7);
float fishdirectionX = 1.5;
boolean negrdx = false; 

void setup(){
  size(800,650);
  horizon= height/4;
  reset(); 

}


void keyPressed() {
  if (key =='r') reset();
}


void draw() { 
   scene();
   title();
   waves();
   fishes();
}
void title() {
   textSize(20); 
   fill(255);
   text( "Waves",width/2.5,80); 
   textSize(15);
   fill (0);
   text(" Jason Martin",10,height-15);
}  
   

void scene(){  
  //sky 
  background(120,182,255);
  fill(56,120,229);
  //Horizon 
  rectMode(CORNER); 
  rect(0,horizon,width,height*4);
  
  }
void waves(){
  // draw wave   
  noStroke();
  fill(120,182,255);
  ellipseMode(CENTER);
  // make wave loop 
  for ( float x=wavesX;x<width+20;x=x+75) {
  noStroke();
  ellipse( x,horizon,85,40);
  wavesX+=1;
  if ( wavesX>50 ){
    wavesX=-100;
    wavesX+=1;
  }
 }
}




void fishes() {
   //move fish 
   x += fishdirectionX;
   if (x >=width+2*w*pairs){ 
     fishdirectionX = -fishdirectionX ;
     negrdx =true; 
   }
   if (x<0 - 2*w*pairs){ 
     fishdirectionX = -fishdirectionX ;
     negrdx = !negrdx; 
   }
   // draw fish
   fish( x,y,w,h);
   fishg ( p,x,y,w,h);
}

// fish
void fish(float x, float y, float w, float h) { 
  fill(188,29,220);
  ellipse(x,y,w*2,h);
  if (negrdx) {
    triangle(x+w,y, x+w+20,y-10, x+w+10,y+10);
  } else {
    triangle(x,y, x-20,y-5, x-20,y+5);
  }
}
// other fish 
void fishg (int p,float x,float y,float w,float h){
    float xx= x; 
    float ww=w; 
    float yy= y;
    float up =0;  
    float dy = h/3;
    dy= h/3; 
    dy += h/3;
    //first fish 
    fish ( xx,y,w,h);
    
   // make school of fish
    for (int j=0;j<pairs;j++) {
        up=  up + h;
        ww=  ww * 0.8;
        if(negrdx){ 
          xx= xx + 2*w;
        } else {
          xx= xx - 2*w;
        }
        fish ( xx,y-up,ww,h);  
        fish ( xx,y+up,ww,h); 
  }
}


void reset() {  
  x=0;
  y= random(height/2,height); 
  pairs= int (random(3,10));
  wavesX=0;
}