import java.awt.*;
import java.awt.Graphics.*;
import java.math.*;

abstract class Figure
{
	int mX0, mY0;
	Color mColor = Color.red ; // default = red

	Figure(int x0, int y0) // constructor
	{
	  mX0 = x0;
	  mY0 = y0;
	}
	abstract void Draw(Graphics g);
	abstract boolean IsPointInFigure(int x, int y);
}
class Rectangle extends Figure
{
	int mWidth, mHeight;

	Rectangle(int x0, int y0, int width, int height)
	{
		super(x0, y0);
		mWidth = width;
		mHeight = height;
	}
	void Draw(Graphics g)
	{
		g.setColor(mColor);
		g.drawOval(mX0-1, mY0-1, 1, 1); // middelpunt
		g.drawRect(mX0-mWidth/2, mY0-mHeight/2, mWidth, mHeight);
	}
	// nuttige functie
	boolean IsPointInFigure(int x, int y)
	{
		if ((x > (mX0 - mWidth/2)) && (x < (mX0 + mWidth/2)) && (y > (mY0 - mHeight/2)) && (y < (mY0 + mHeight/2)))
			return true;
		else
			return false;
	}
}
class Quadrangle extends Rectangle
{
	int mSize;
	Quadrangle(int x0, int y0, int size)
	{
		super(x0, y0, size, size);
		mSize = size;
	}
}
class Circle extends Figure
{
	int mRadius;
	
	Circle(int x0, int y0, int radius)
	{
		super(x0, y0);
		mRadius = radius;
	}
	void Draw(Graphics g)
	{
		g.setColor(mColor);
		g.drawOval(mX0-1, mY0-1, 1, 1);
		g.drawOval(mX0-mRadius, mY0-mRadius, 2*mRadius, 2*mRadius);
	}	
	boolean IsPointInFigure(int x, int y)
	{
		if (Distance(x, y, mX0, mY0) < mRadius)
			return true;
		else
			return false;
	}
// nuttige functie:
	int Distance(int x1, int y1, int x2, int y2)
	{
		double dist = (x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2);
		dist = Math.sqrt(dist);
		return (int) dist;
	}

}

class Triangle extends Figure
{
	int mSize;
	
	Triangle(int x0, int y0, int size)
	{
		super(x0, y0);
		mSize = size;
	}
	void Draw(Graphics g)
	{
		g.setColor(mColor);
		g.drawOval(mX0, mY0, 1, 1);
		int x[] = new int[4];
		int y[] = new int[4];
		x[0] = (int)(mX0 - mSize * Math.cos(Math.PI/6)); 
		y[0] = (int)(mY0 + mSize * Math.sin(Math.PI/6));
		x[1] = mX0 ; 							  
		y[1] = mY0 - mSize;
		x[2] = (int)(mX0 + mSize * Math.cos(Math.PI/6)); 
		y[2] = (int)(mY0 + mSize * Math.sin(Math.PI/6));
		x[3] = x[0]; y[3] = y[0];
		
		g.drawPolygon(x, y, 4);
	}	

	boolean IsPointInFigure(int x, int y) 
	{  // dit is niet echt correct
		if ((x > (mX0 - mSize/2)) && (x < (mX0 + mSize/2)) && (y > (mY0 - mSize/2)) && (y < (mY0 + mSize/2)))
			return true;
		else
			return false;
	}

}