import java.awt.*;
public class square extends shape
{
	public double angle, anglechange;	//I also put a rotation on my square, angle is the angle it's drawn at in radians, and 
	//anglechange is a small random number (from 0 to .2) that is added to it every animation frame and then reduced by 20%
	public square(int x, int y, int size, int xVel, int yVel, int gravX, int gravY)		//constructer that accepts everything
	{
		super(x, y, size, xVel, yVel, gravX, gravY);
		angle=Math.random()*Math.PI/2;
		anglechange=Math.random()/5;
	}
	//constructor that sets everything but the ending points randomly
	public square(int gravX, int gravY)
	{
		super((int)(Math.random()*300), (int)(Math.random()*300), 55, (int)(Math.random()*100-50), (int)(Math.random()*100-50), gravX, gravY);
		angle=Math.random()*Math.PI/2;
		anglechange=Math.random()/5;
	}
	//overrides paint in shape
	public void paint(Graphics g)
	{
		int x[]=new int[4];
		int y[]=new int[4];
		x[0]=(int)(centerX-size*Math.cos(angle));		//it takes a little trigonometry to rotate a square
		y[0]=(int)(centerY-size*Math.sin(angle));
		x[1]=(int)(centerX-size*Math.cos(Math.PI/2+angle));
		y[1]=(int)(centerY-size*Math.sin(Math.PI/2+angle));
		x[2]=(int)(centerX+size*Math.cos(angle));
		y[2]=(int)(centerY+size*Math.sin(angle));
		x[3]=(int)(centerX+size*Math.cos(Math.PI/2+angle));
		y[3]=(int)(centerY+size*Math.sin(Math.PI/2+angle));
		g.fillPolygon(x, y, 4);
	}
	//changeposition in shape overridden to adjust anglechange as well
	public void changeposition()
	{
		if (!stopped)
		{
			centerX+=(int)(Xvel/10);
			centerY+=(int)(Yvel/10);
			angle=angle+anglechange;
			if (angle>Math.PI/2)
				angle = angle-Math.PI/2;
			Xvel=Xvel*.9;
			Yvel=Yvel*.9;
			anglechange=anglechange*.8;
			if (anglechange<.03)
				anglechange=.025;
			if ((Math.abs(centerX-gravX)<=2) && (Math.abs(centerY-gravY)<=2)/* && Math.abs(Xvel)<1.5 && Math.abs(Yvel)<1.5*/ && anglechange<=.03 && (Math.abs(Math.PI/2-angle)<.1))
				stopped=true;
		}
		else
		{
			centerX=gravX;
			centerY=gravY;
			angle=Math.PI/2;
		}	//this is where I want it to settle if it's stopped.
	}
}