class Fish {
      // Fishes swim
      float x=200,y=200, dx=5, dy=.30, w=80,h=30;
      int r,g,b;	// Color
      String name="";
      // METHODS //
      void show() {
        // Draw the fishes.
        fill(r= 100,g=8,b=90);
        ellipse( x,y,w,h );
        float front=x+w/2, back=x-w/2;
        triangle( back,y, back-20,y-10, back-20,y+10 );		// Tail
        fill(155);  // eye
        strokeWeight(5);
        ellipse( front-15, y-10, 10, 10 );
        
        fill(r= 100,g=8,b=90);
        ellipse( x,y,w,h );
        // makefloat 
        triangle( back,y, back-20,y-10, back-20,y+10 );		// Tail
        fill(155);  // eye
        strokeWeight(5);
        ellipse( front-15, y-10, 10, 10 );
      }
      void move() {
        //move the fishes
        if (x>right) dx=  -dx;
        if (x>left) dx= +dx;
        if (y>top) dy= +dy;
        if (y>bottom) dy=  -dy;
        dy=  dy + random( -1, +1 );
        x += dx;
        y += dy;
      } 
       
         boolean hit( float x, float y ) {
        // boolean/if/return true statement
        if (x < x-w/2 || x > x+w/2) return false;
        if (y < y-h/2 || y > y+h/2) return false;
        return true;    // Hit detected.
      }
      }
   
    //END class Fish 


// "Button" class
    class Button {
      // Button
    }



      // GLOBALS:  
      String title="Fish project";
      String news="r to reset; e to exit";

      float left=50, top=50, right=550, bottom=350;
      Button b1;							// 
      Fish charlie;			// Declare the object		// 	
      //
      void setup() {
          // Setup screen; instantiate object(s).
          size( 600, 400 );
          reset();
      }
      void reset() {
        // Reset everything.						// 
          charlie=  new Fish();
          charlie.name=  "Charlie";	// Instatiate it.		// 
          //
          b1=  new Button();
      } 
      //
      void draw() {
          // Next frame
          scene();    // background, tank, etc.
          showAll();    // Draw the fish, buttons, etc.
          action();    // Move fish, check collisions, etc.
      }
      void showAll() {
        // Show fish, buttons, etc.				 
        charlie.show();						
        //	b1.show();
      }
      void action() {
        // Move fish.						
        charlie.move();						
      }
      void scene() {
        // Tank
	background( 55, 255, 55 ); 
      }
      // EVENT HANDLERS 
      void keyPressed() {
        //// Handle keys.
        if (key == 'e') exit();
        if (key == 'r') reset();
      }