import java.awt.*;

public class Mov{
	Dimension sz;
	Dimension moveSz;
	public Point p;
	Point dir;	
	int moveCnt;
	public int moveCntN;

	public Mov(Dimension areaSz, Dimension sz, Point p){
		this.sz = sz;
		moveSz = new Dimension(areaSz.width-sz.width, areaSz.height-sz.height);
		this.p = p;
		chgp();
		dir = new Point(0,0); 
		chgdir();
		moveCnt = 0;
		moveCntN = Rnd.get(30,50);
	}
	public Mov(Dimension areaSz, Dimension sz){
		this(areaSz, sz, new Point(0,0));
	}
	public void chgp(){
		p.x = Rnd.get(0,moveSz.width);
		p.y = Rnd.get(0,moveSz.height);
	}		
	public void chgdir(){
		dir.x = Rnd.sget(3,10);
		dir.y = Rnd.sget(3,10);
	}
	public void move(){
		p.x += dir.x;
		p.y += dir.y;
		if(p.x<0){
			dir.x = -dir.x;
			p.x = -p.x;
		}else if(p.x>moveSz.width){
			dir.x = -dir.x;
			p.x = moveSz.width - (p.x - moveSz.width);
		}
		if(p.y<0){
			dir.y = -dir.y;
			p.y = -p.y;
		}else if(p.y>moveSz.height){
			dir.y = -dir.y;
			p.y = moveSz.height - (p.y - moveSz.height);
		}		
		if(++moveCnt>=moveCntN){
			moveCnt = 0;
			chgdir();
		}
	}
	public Rectangle getRect(){
		return new Rectangle(p, sz);
	}
}

// EOF