//************************************************************************
// creates animated card show for idle time or a win situation
// Programmer: H K Gupta     Date: 25 Oct1997
//************************************************************************

import java.awt.*;
import java.awt.image.*;
import java.applet.Applet;
import java.lang.Math;

public	class HridayeshCardShow {
	private HridayeshLoadCards deckImages;
	private int x = -100;
	private int y;
	private int card;
	private int type = 0;

	public	HridayeshCardShow(HridayeshLoadCards deckImages) {
		this.deckImages = deckImages;
	}

	private	int	steps = 0;
	private final int maxSteps = 250;

	public	void draw(Graphics g, Canvas parent) {
		switch (type) {
			case 0:	doSpiral(parent);	break;
			case 1:	doRandom(parent);	break;
			case 2: doCrawl(parent);	break;
			case 3: doPyramid(parent);	break;
			case 4: doDoubleSpiral(g, parent);	break;
			default: type = 0; 
				 steps = 0;
		}
		if(steps > maxSteps) {
			type++;
			steps = 0;
			Dimension d = parent.size();
			g.setColor(Color.black);
			g.fillRect(0, 0, d.width, d.height);
		}
		else {
			g.drawImage(deckImages.getCardImage(card), x, y, parent);
			steps++;
		}
	}

	private double angle = 0.0;
	private void doSpiral(Canvas parent) {
		if(steps == 0) {
			angle = 0.0;
		}
		Dimension d = parent.size();
		int radius = (steps * d.width / maxSteps / 2) + 50;
		double angInc = ((double)(maxSteps - steps)) / maxSteps / 5;
		angle += angInc;
		x = d.width / 2 + (int)(Math.sin(angle) * radius);
		y = d.height / 2 + (int)(Math.cos(angle) * radius);
		card = randomNumber(0, 51);
	}

	private void doDoubleSpiral(Graphics g, Canvas parent) {
		if(steps == 0) {
			angle = 0.0;
		}
		Dimension d = parent.size();
		int radius = (steps * d.width / maxSteps / 4) + 50;
		double angInc = ((double)(maxSteps - steps)) / maxSteps / 5;
		angle += angInc;
		x = d.width / 3 + (int)(Math.sin(angle) * radius);
		y = d.height / 2  - 40 + (int)(Math.cos(angle) * radius);
		card = randomNumber(0, 51);
		g.drawImage(deckImages.getCardImage(51), x + d.width / 3, y, parent);
	}

	private	int	count = 0;
	private int	xDir = -1;
	private int 	yDir = -1;
	private void doRandom(Canvas parent) {
		Dimension d = parent.size();
		count++;
		if(count > 6) {
			count = 0;
			x = -100;
		}
		if((x < - 70) || (x > (d.width - 10)) || (y < - 80) || (y > (d.height - 10)) || ((xDir == 0) && (yDir == 0))) {
			card = randomNumber(0, 51);
			x = randomNumber(- 80, d.width - 10);
			y = randomNumber(- 90 + 10, d.height - 10);
			xDir = randomNumber(-1, 1);
			yDir = randomNumber(-1, 1);
		}
		else {
			x = x + xDir * 12;
			y = y + yDir * 12;
		}
	}

	private int directX = 1;
	private int directY = 1;
	
	private void doCrawl(Canvas parent) {
		Dimension d = parent.size();
		if(steps == 0) {
			directX = 1;
			directY = 1;
			x = d.width / 2;
			y = d.height / 2;
		}
		if(x < - 70) directX = 1;
		if(x > (d.width - 10)) directX = -1;
		if(y < - 80) directY = 1;
		if(y > (d.height - 10)) directY = -1;
		card = randomNumber(0, 51);
		x = x + directX * 15;
		y = y + directY * 12;
	}

	private	int miniSteps = 1;
	private int miniStepsTaken = 0;
	private void doPyramid(Canvas parent) {
		Dimension d = parent.size();
		if(steps == 0) {
			miniSteps = 1;
			miniStepsTaken = 0;
			x = d.width / 2;
			y = 0;
		}
		if(miniStepsTaken >= miniSteps) {
			miniStepsTaken = 0;
			miniSteps += 2;
			y += 16;
		}
		card = randomNumber(0, 51);
		x = d.width / 2- 40 - (miniSteps / 2) * 15 + miniStepsTaken * 17;
		miniStepsTaken++;
	}


	private int randomNumber(int min, int max) {
		return (int)(Math.random() * (max - min + 1)) + min;
	}
}