src/Explode.java

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import java.awt.*;

public class Explode {

	int x, y;
	private boolean live = true;
	int[] diameter = { 4, 7, 12, 18, 26, 32, 49, 60, 92, 60, 30, 14, 6 };
	int step = 0;

	private TankClient tc;

	public Explode(int x, int y, TankClient tc) {
		this.x = x;
		this.y = y;
		this.tc = tc;//该代码下载自www.51Aspx.com
	}

	public void draw(Graphics g) {
		if (!live) {
			tc.explodes.remove(this);
			return;
		}
		if (step == diameter.length) {
			live = false;
			step = 0;
			return;
		}
		Color c = g.getColor();
		g.setColor(Color.ORANGE);
		g.fillOval(x - diameter[step] / 2 + Tank.WIDTH / 2, y - diameter[step]
				/ 2 + Tank.HEIGHT / 2, diameter[step], diameter[step]);
		g.setColor(c);
		step++;
	}
}