import java.util.*;
import java.awt.*;
/**
   A Fish swims around the world eating Algae.
   @author Ben Dugan, Hal Perkins
   CSE 142 Summer 2001, Homework 6
*/
public class Fish implements Thing {
  private static Random rand = new Random();
  private int x, y, algaeEaten;

  /** Create a new fish at this location. */
  public Fish(int x, int y) {
    this.x = x;
    this.y = y;
    this.algaeEaten = 0;
  }
  
  /** Display a yellow oval. */
  public void display(GWindow g) {
    g.display(new Oval(this.x, this.y, 6, 6, Color.yellow, true));
  }

  /** Move around at random. */
  public void move() {
    int dx = rand.nextInt(5) - 2;
    int dy = rand.nextInt(5) - 2;
    this.x = this.x + dx;
    this.y = this.y + dy;
  }

  /** Spawn every time we eat 5 algae. */
  public void spawn(ArrayList v) {
    // unimplemented right now.
  }

  /** Fish consume only Algae. */
  public boolean consumes(String kindOfThing) {
    return kindOfThing.equals("Algae");
  }

  /** If we're presented with an Aglae, we eat it, and remember it. */
  public void consume(String kindOfThing) {
    if (kindOfThing.equals("Algae")) {
      this.algaeEaten = this.algaeEaten + 1;
    }
  }

  /** Answer "Fish". */
  public String kindOfThing() { 
    return "Fish"; 
  }

  /** Answer the x position. */
  public int getX() { 
    return this.x; 
  }

  /** Answer the y position. */
  public int getY() { 
    return this.y; 
  }
  
  /** Answer the name and position. */
  public String toString() {
    return "Fish: (" + this.x + "," + this.y + ")";
  }
}