int n; //# of fish
float x, y; //position
float w , h; //fish size
float horizon=100;
float wX;
String myName = "Adam Kochen";
String gName = "Fish";
float fishX,fishM=5;
float z = 1,g;
int textX = 10;
float colourRed , colourGreen , colourBlue;
float colour;

void setup () {
size(800,600);
reset();
}

void draw() {
  noStroke();
  background(200,250,255); //sky
  fill(0,0,255);
  rect(0,horizon,width,height); //water
 //0-0 x = 600;
 //0-0 y = 300;
 //0-0 if(x-60*n < width){
  //0-0 }
 x=50;
 y=300;
 w=25 * z;
 //y = y-random(1,5)+random(1,5);
  //w= 25;
  h= 15;
  fishX=fishX+fishM;
  fishes(fishX,y,w,h,fishM);
  if(fishX > width || fishX < 0){
  fishM = -fishM;
  z = -z;
};
  
   wX=wX-4;
   fill(200,250,255);
   //--  fill(255,0,0);
   waves(wX,horizon,80,60); //moving waves
   //--  fill(0);
   waves(0,horizon,80,60); //still waves
  
  //test text
  fill(0);
  text("fishM "+fishM,10,textX);
  text("fishX "+fishX,10,textX+10);
  text("z "+z,10,textX+20);
  text("g "+g,10,textX+30);
  text("w "+w,10,textX+40);
  text("n "+n,10,textX+50);
  text(myName + " - " + gName,300,10);
}


void fish(float x,float y,float w,float h, float z )
{ 
  //fish shape
  ellipseMode(CENTER);//body
  //fill(255);
  ellipse(x,y,w,h);
  //rect(x,y,10,10);
  //if(fishX > width || fishX < 0){t=-t;}
  triangle(x-w/2+z,y,x-w,y-h/1.5,x-w,y+h/1.5); //tail
}

void fishes(float x,float y,float w,float h, float z ){
  for( int l = 1; l < n ; l++){
    fill(colourRed,colourGreen,colourBlue);
    fish(x,y,w,h,z);     // below
      //birds above and below
      x=  x - 2*w;
      y = y + h;
  }
}
void wave(float wx, float wy, float ww, float wh){
  //--  fill(200,250,255);
  ellipse(wx,wy,ww,wh); //wave ellipse
  if(wx == 0) {wx = width;}
}

void waves(float wX, float wY, float wW, float wH){
  float horizonY = horizon;
  float xx = wX;
  //--  for( int l = 0; l < 800;l=l+7)
  for( xx=wX; xx<width+80; xx+=80)
  {
    wave(xx,wY,wW,wH);
    //--  xx = xx+80;
  }
}

void reset() {
  // reset
  n = int (random(4,7));
  x=  random(0,50);
  y=  random(0,horizon);
  w=  50;
  h=  20;
  colourRed = random(0,255);
  colourBlue = random(0,255);
  colourGreen = random(0,255);
}

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