tools.java

一个J2ME的游戏,有源程序.是原创!适合S60的176*208的规格.

package src;

import javax.microedition.lcdui.Graphics;
import java.util.Random;

public final class Tools {
	public static final int GRAPHICS_TOP_LEFT = Graphics.LEFT | Graphics.TOP;

	public static final int posx[] = new int[50];

	public static final int posy[] = new int[50];

	private static final Random randomizer = new Random();

	public static final int getRand(int min, int max) {
		int r = Math.abs(randomizer.nextInt());
		return (r % ((max - min + 1))) + min;
	}

	public static final void drawSnow(Graphics graphics) {
		graphics.setColor(255, 255, 255);
		for (int i = 10; i < 25; i++) {
			graphics.fillArc(posx[i], posy[i], 1, 1, 0, 360);
		}
		for (int i = 25; i < 50; i++) {
			graphics.fillArc(posx[i], posy[i], 2, 2, 0, 360);
		}
	}

	public static final void updatesnow(int wind) {
		for (int i = 10; i < 25; i++) {// 种类二的雪花的处理
			int temp1 = Tools.getRand(1, 3);
			posx[i] = posx[i] + wind;
			if (temp1 == 1) {
				if (posx[i] > -2)
					posx[i] = posx[i] - 1;
				else {
					posx[i] = KingCanvas.SCREEN_WIDTH - Tools.getRand(1, 3);
				}
			}
			if (temp1 == 2) {
				if (posx[i] < KingCanvas.SCREEN_WIDTH)
					posx[i] = posx[i] + 1;
				else {
					posx[i] = Tools.getRand(1, 3);
				}
			}
			posy[i] = posy[i] + 2;
			if (posy[i] > Tools.getRand(KingCanvas.SCREEN_HEIGHT / 3,
					KingCanvas.SCREEN_HEIGHT * 2 / 3)) {
				posx[i] = Tools.getRand(0, KingCanvas.SCREEN_WIDTH);
				posy[i] = -4;
			}
		}
		for (int i = 25; i < 50; i++) {// 种类三的雪花的处理
			int temp2 = Tools.getRand(1, 3);
			posx[i] = posx[i] + wind;
			if (temp2 == 1) {
				if (posx[i] > -2)
					posx[i] = posx[i] - 2;
				else {
					posx[i] = KingCanvas.SCREEN_WIDTH - Tools.getRand(1, 3);
				}
			}
			if (temp2 == 2) {
				if (posx[i] < KingCanvas.SCREEN_WIDTH)
					posx[i] = posx[i] + 2;
				else {
					posx[i] = Tools.getRand(1, 3);
				}
			}
			posy[i] = posy[i] + 3;
			if (posy[i] > Tools.getRand(KingCanvas.SCREEN_HEIGHT * 3 / 3,
					KingCanvas.SCREEN_HEIGHT)) {
				posx[i] = Tools.getRand(0, KingCanvas.SCREEN_WIDTH);
				posy[i] = -4;
			}
		}
	}
}