// Sprite Class
// Sprite.java

// Imports
import java.awt.*;
import java.awt.image.*;

public class Sprite {
  Component component;
  Image[]   image;
  int       frame,
            frameInc,
            frameDelay,
            frameTrigger;
  Rectangle position,
            collision;
  int       zOrder;
  Point     velocity;
  boolean isBirdDead = false;

  Sprite(Component comp, Image img, Point pos, Point vel, int z) {
    component = comp;
    image = new Image[1];
    image[0] = img;
    frame = 0;
    frameInc = 0;
    frameDelay = frameTrigger = 0;
    velocity = vel;
    zOrder = z;
    setPosition(pos);
  }

  Sprite(Component comp, Image[] img, int f, int fi, int fd,
    Point pos, Point vel, int z) {
    component = comp;
    image = img;
    frame = f;
    frameInc = fi;
    frameDelay = frameTrigger = fd;
    velocity = vel;
    zOrder = z;
    setPosition(pos);
  }

  Image[] getImage() {
    return image;
  }

  int getFrameInc() {
    return frameInc;
  }

  void setFrameInc(int fi) {
    frameInc = fi;
  }

  int getFrame() {
    return frame;
  }

  void incFrame() {
    if ((frameDelay > 0) && (--frameTrigger <= 0))
    {
      // Reset the frame trigger
      frameTrigger = frameDelay;

      // Increment the frame
      frame += frameInc;
      if (frame >= image.length)
        frame = 0;
      else if (frame < 0)
        frame = image.length - 1;
    }
  }

  Rectangle getPositionRect() {
    return position;
  }

  void setPosition(Rectangle pos) {
    position = pos;
    calcCollisionRect();
  }

  void setPosition(Point pos) {
    position = new Rectangle(pos.x, pos.y,
      image[0].getWidth(component), image[0].getHeight(component));
    calcCollisionRect();
  }

  Rectangle getCollisionRect() {
    return collision;
  }

  int getZOrder() {
    return zOrder;
  }

  Point getVelocity() {
    return velocity;
  }

  void setVelocity(Point vel)
  {
    velocity = vel;
  }

  void update() {
	int w = component.size().width,
	    h = component.size().height;
	position.translate(velocity.x, velocity.y);
	if(!isBirdDead){
		if((position.x + position.width) < 0)
			position.x = (w-30);
		else if(position.x == w){
			position.x = -position.width;
			System.out.println("here");
		}
		if((position.y + position.height) < 0)
			position.y = h;
		else if(position.y == h)
			position.y = -position.height;
		calcCollisionRect();
		incFrame();
	}
	else if(position.x == 0)
		isBirdDead = false;
  }

  void draw(Graphics g) {
    if(position.x <= 500){
   	// Draw the current frame
	g.drawImage(image[frame], position.x, position.y, component);
    }
  }

  protected boolean testCollision(Sprite test) {
    // Check for collision with another sprite
    if (this != test)
      if (collision.intersects(test.getCollisionRect())){
    	isBirdDead = true;
        return true;
    }
    return false;
  }

  public void calcCollisionRect() {
    // Calculate the collision rect
      collision = new Rectangle(position.x + 4, position.y + 4,
      position.width - 8, position.height - 8);
  }

}// end Sprite class