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java必背代码推荐 java语言必背代码( 三 )

IT技术方法


for(int i=0;irowNum;i++)
for (int j=0; jcolumnNum;j++)
scrArr[j]=0;
b.reset();
repaint();
}
//重新刷新画布方法
public void paint(Graphics g){
for(int i = 0; irowNum; i++)
for(int j = 0; jcolumnNum; j++)
drawUnit(i,j,scrArr[j]);
}
//画方块的方法
public void drawUnit(int row,int col,int type){
scrArr[row][col] = type;
Graphics g = getGraphics();
tch(type){ //表示画方快的方法
case 0: g.setColor(Color.black);break; //以背景为颜色画
case 1: g.setColor(Color.blue);break; //画正在下落的方块
case 2: g.setColor(Color.magenta);break; //画已经落下的方法
}
g.fill3DRect(col*unitSize,getSize().height-(row+1)*unitSize,unitSize,unitSize,true);
g.dispose();
}
public Block getBlock(){
return b; //返回block实例的引用
}
//返回屏幕数组中(row,col)位置的属性值
public int getScrArrXY(int row,int col){
if (row0 || row = rowNum || col0 || col = columnNum)
return(-1);
else
return(scrArr[row][col]);
}
//返回新块的初始行坐标方法
public int getInitRow(){
return(blockInitRow); //返回新块的初始行坐标
}
//返回新块的初始列坐标方法
public int getInitCol(){
return(blockInitCol); //返回新块的初始列坐标
}
//满行删除方法
void deleteFullLine(){
int full_line_num = 0;
int k = 0;
for (int i=0;irowNum;i++){
boolean isfull = true;
L1:for(int j=0;jcolumnNum;j++)
if(scrArr[j] == 0){
k++;
isfull = false;
break L1;
}
if(isfull) full_line_num++;
if(k!=0k-1!=i!isfull)
for(int j = 0; jcolumnNum; j++){
if (scrArr[j] == 0)
drawUnit(k-1,j,0);
else
drawUnit(k-1,j,2);
scrArr[k-1][j] = scrArr[j];
}
}
for(int i = k-1 ;irowNum; i++){
for(int j = 0; jcolumnNum; j++){
drawUnit(i,j,0);
scrArr[j]=0;
}
}
ERS_Block.score += full_line_num;
ERS_Block.scoreField.setText(""+ERS_Block.score);
}
//判断游戏是否结束方法
boolean isGameEnd(){
for (int col = 0 ; col columnNum; col ++){
if(scrArr[maxAllowRowNum][col] !=0)
return true;
}
return false;
}
public void keyTyped(KeyEvent e){
}
public void keyReleased(KeyEvent e){
}
//处理键盘输入的方法
public void keyPressed(KeyEvent e){
if(!ERS_Block.isPlay)
return;
tch(e.getKeyCode()){
case KeyEvent.VK_DOWN:b.fallDown();break;
case KeyEvent.VK_LEFT:b.leftMove();break;
case KeyEvent.VK_RIGHT:b.rightMove();break;
case KeyEvent.VK_SPACE:b.leftTurn();break;
}
}
}
//处理控制类
class Command implements ActionListener{
static final int button_play = 1; //给按钮分配编号
static final int button_levelup = 2;
static final int button_leveldown = 3;
static final int button_quit = 4;
static final int button_pause = 5;
static boolean pause_resume = true;
int curButton; //当前按钮
GameCanvas scr;
//控制按钮类的构造方法
Command(int button,GameCanvas scr){
curButton = button;
this.scr=scr;
}
//按钮执行方法
public void actionPerformed (ActionEvent e){
tch(curButton){
case button_play:if(!ERS_Block.isPlay){
scr.initScr();
ERS_Block.isPlay = true;
ERS_Block.score = 0;
ERS_Block.scoreField.setText("0");
ERS_Block.timer.resume();
}
scr.requestFocus();
break;
case button_levelup:if(ERS_Block.level10){
ERS_Block.level++;
ERS_Block.levelField.setText(""+ERS_Block.level);
ERS_Block.score = 0;
ERS_Block.scoreField.setText(""+ERS_Block.score);

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