import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Terris extends JFrame implements Runnable, KeyListener {
private short isPlaying=0,xOffSet = 2, yOffSet = 0, blockType = (short) Math.round(Math.random() * 6), blockRotation = 0, blockColor = (short) Math.round(Math.random() * 5);
private short matrix[][] = new short[21][10];//
private short block[][][][] = {{{ { 0, 1, 0, 0 }, { 0, 1, 0, 0 }, { 0, 1, 0, 0 },{ 0, 1, 0, 0 } },/* l */{ { 0, 0, 0, 0 }, { 1, 1, 1, 1 }, { 0, 0, 0, 0 },{ 0, 0, 0, 0 } } },/*-*/{{ { 0, 0, 0, 0 }, { 1, 1, 0, 0 }, { 0, 1, 1, 0 },{ 0, 0, 0, 0 } },/* z */{ { 0, 0, 0, 0 }, { 0, 0, 1, 0 }, { 0, 1, 1, 0 },{ 0, 1, 0, 0 } } },/* z| */{{ { 0, 0, 0, 0 }, { 0, 1, 1, 0 }, { 1, 1, 0, 0 },{ 0, 0, 0, 0 } },/* xz */{ { 0, 1, 0, 0 }, { 0, 1, 1, 0 }, { 0, 0, 1, 0 },{ 0, 0, 0, 0 } } },/* xz| */{ { { 0, 0, 0, 0 }, { 0, 1, 1, 0 }, { 0, 1, 1, 0 }, { 0, 0, 0, 0 } } },/** []*/{{ { 0, 1, 1, 0 }, { 0, 1, 0, 0 }, { 0, 1, 0, 0 },{ 0, 0, 0, 0 } },{ { 0, 0, 0, 0 }, { 1, 1, 1, 0 }, { 0, 0, 1, 0 },{ 0, 0, 0, 0 } },{ { 0, 1, 0, 0 }, { 0, 1, 0, 0 }, { 1, 1, 0, 0 },{ 0, 0, 0, 0 } },{ { 1, 0, 0, 0 }, { 1, 1, 1, 0 }, { 0, 0, 0, 0 },{ 0, 0, 0, 0 } } },/* f */{{ { 1, 1, 0, 0 }, { 0, 1, 0, 0 }, { 0, 1, 0, 0 },{ 0, 0, 0, 0 } },{ { 0, 0, 1, 0 }, { 1, 1, 1, 0 }, { 0, 0, 0, 0 },{ 0, 0, 0, 0 } },{ { 0, 1, 0, 0 }, { 0, 1, 0, 0 }, { 0, 1, 1, 0 },{ 0, 0, 0, 0 } },{ { 0, 0, 0, 0 }, { 1, 1, 1, 0 }, { 1, 0, 0, 0 },{ 0, 0, 0, 0 } } },/* xf */ {{ { 0, 1, 0, 0 }, { 1, 1, 1, 0 }, { 0, 0, 0, 0 },{ 0, 0, 0, 0 } },{ { 0, 1, 0, 0 }, { 0, 1, 1, 0 }, { 0, 1, 0, 0 },{ 0, 0, 0, 0 } },{ { 0, 0, 0, 0 }, { 1, 1, 1, 0 }, { 0, 1, 0, 0 },{ 0, 0, 0, 0 } },{ { 0, 1, 0, 0 }, { 1, 1, 0, 0 }, { 0, 1, 0, 0 },{ 0, 0, 0, 0 } } } };/* t */
private Image[] images = {new ImageIcon("D:/Java/eclipse/workspace/Terris/src/img/Red.gif").getImage(),new ImageIcon("D:/Java/eclipse/workspace/Terris/src/img/Blue.gif").getImage(),new ImageIcon(("D:/Java/eclipse/workspa
通常,有一类问题的产生都是由于没有重载hashCode这个方法. 当你重载equals后,hashCode必须重载,否则在使用HashMap, HashSet, Hashtable的时候,会出错.
对于hashCode有几个原则.
1. 不管什么时候调用hashCode,如果同一个对象与hashCode相关的字段没有修改的话,这个方法的返回值必须相同. 但不必和另一个应用程序中的值相等 ......
