俄罗斯方块 - 方块旋转移动CLASS

public class Root//8个块的根类,具有一般性
{
        private GameTable gTable;//创建游戏桌子
        private int x,y;//方块坐上角现在在桌子上的位置
        private int[] upleft = {0,0};//储存判断方块的左上角在4*4矩阵所在位置
        private int[] downright = {0,0};//方块的长度和宽度
        public int[][] coordinate;//方块形状的4*4坐标

 

 

 private boolean begin()//初始化显示
 {
                judge();//记录方块在4*4矩阵中的实际坐标
  //判断用于初始化的坐标是否被占用
                x = (gTable.x-1)/2;//记录左上角在游戏桌的坐标
                y = 0;
                for(int i=0;i<=downright[0];i++)//判断游戏桌是否有被占用
                    for(int j=0;j<=downright[1];j++)
                        if(coordinate[i+upleft[0]][j+upleft[1]]==1)
                            if(gTable.myTable[x+i][y+j]==1)
                                return false;
                write(0,0);
                return true;
 }

 

 private boolean down()//向下移动
 {
            if((y+downright[1]) != (gTable.y-1))//判断是否已经到达游戏桌底部
            {
               for(int i=0;i<=downright[0];i++)
                    for(int j=0;j<=downright[1];j++)
                        if(coordinate[i+upleft[0]][j+upleft[1]]==1)//判断矩阵里方块的位置
                        {
                            if((upleft[1]+j)==3)
                            {
                                if(gTable.myTable[x+i][y+j+1]==1)//判断方块下方在游戏桌上是否有被占用
                                    return false;
                            }
                            else
                                if(coordinate[i+upleft[0]][j+upleft[1]+1]==0)//判断方块下方是否属于方块自身
                                    if(gTable.myTable[x+i][y+j+1]==1)//判断方块下方在游戏桌上是否有被占用
                                        return false;
                        }
                write(0,1);
                return true;
            }
            else
                return false;
 }

 

 private boolean left()//判断是否能向左移动
 {
               if(x>0)//判断方块是否在游戏盘左边沿
               {
                   for(int i=0;i<=downright[0];i++)
                         for(int j=0;j<=downright[1];j++)
                                if(coordinate[i+upleft[0]][j+upleft[1]]==1)//判断矩阵里方块的位置
                                     if(i==0)
                                     {
                                         if(gTable.myTable[x+i-1][y+j]==1)//判断方块左方在游戏桌上是否有方块
                                                      return false;
                                     }
                                     else
                                         if(coordinate[i+upleft[0]-1][j+upleft[1]]==0)//判断方块左方是否属于方块自身
                                                if(gTable.myTable[x-1][y+j]==1)//判断方块左方在游戏桌上是否有方块
                                                      return false;
                   write(-1,0);
                   return true;
               }
               return false;
 }

 

 private boolean right()//同down()
 {
               if((x+downright[0])<(gTable.x-1))//判断方块是否在游戏盘右边沿
               {
                   for(int i=0;i<=downright[0];i++)
                         for(int j=0;j<=downright[1];j++)
                                if(coordinate[i+upleft[0]][j+upleft[1]]==1)//判断矩阵里方块的位置
                                {
                                     if(i==downright[0])
                                     {
                                         if(gTable.myTable[x+i+1][y+j]==1)//判断方块右方在游戏桌上是否有方块
                                             return false;
                                     }
                                     else
                                         if(coordinate[i+upleft[0]+1][j+upleft[1]]==0)//判断方块右方是否属于方块自身
                                                if(gTable.myTable[x+i+1][y+j]==1)//判断方块右方在游戏桌上是否有方块
                                                      return false;
                                }
                   write(1,0);
                   return true;
               }
               return false;
 }

 

 private boolean change()//同down()
 {
            int coordinatetemp[][] = new int[8][8];//判断方块是否能变化时需要用到的coordinate的备份
            int[] uplefttemp = {0,0};//判断方块是否能变化时需要用到的upleft的备份
            int[] downrighttemp = {0,0};//判断方块是否能变化时需要用到的downright的备份

            for(int i=0;i<=downright[0];i++)//擦除变换前的方块
               for(int j=0;j<=downright[1];j++)
                   if(coordinate[i+upleft[0]][j+upleft[1]]==1)
                       gTable.myTable[x+i][y+j]=0;

            //对变换前的4*4矩阵做备份，若无法变换则提取备份
            for(int i=0;i<4;i++)
                for(int j=0;j<4;j++)
                    coordinatetemp[3-j][i]=coordinate[i][j];
            for(int i=0;i<4;i++)
                for(int j=0;j<4;j++)
                    coordinate[i][j] = coordinatetemp[i][j];
            for(int i=0;i<4;i++)
                for(int j=0;j<4;j++)
                    coordinatetemp[j][3-i]=coordinate[i][j];
            uplefttemp[0] = upleft[0];
            uplefttemp[1] = upleft[1];
            downrighttemp[0] = downright[0];
            downrighttemp[1] = downright[1];
            judge();//记录变换后矩阵的数据

            //对是否能进行变换进行检测
            for(int i=0;i<=downright[0];i++)
                for(int j=0;j<=downright[1];j++)
                    if(coordinate[i+upleft[0]][j+upleft[1]]==1)
                    {
                        if((y+downright[1])>(gTable.y-1)||(x+downright[0])>(gTable.x-1))//判断变换后是否超出下边框和右边框
                        {
                            upleft[0] = uplefttemp[0];
                            upleft[1] = uplefttemp[1];
                            downright[0] = downrighttemp[0];
                            downright[1] = downrighttemp[1];
                            for(i=0;i<4;i++)
                                for(j=0;j<4;j++)
                                    coordinate[i][j] = coordinatetemp[i][j];
                            write(0,0);
                            return false;
                        }
                        // 判断变换后的位置是否与变换前重叠，若无重叠，则再次判断游戏桌上变换后的位置是否有方块
                        if(coordinatetemp[i+uplefttemp[0]][j+uplefttemp[1]]==0)
                            if(gTable.myTable[x+i][y+j]==1)
                            {
                                upleft[0] = uplefttemp[0];
                                upleft[1] = uplefttemp[1];
                                downright[0] = downrighttemp[0];
                                downright[1] = downrighttemp[1];
                                for(i=0;i<4;i++)
                                    for(j=0;j<4;j++)
                                        coordinate[i][j] = coordinatetemp[i][j];
                                write(0,0);
                                return false;
                                }
                    }
            write(0,0);//画上变换后的方块
            return true;
 }

 

 private void downTo()//一下到底
 {
      boolean canDown=true;
      while(canDown)
  {
   canDown=down();//循环向下移动一格
  }
 }

 

 private void judge()//此函数为以上函数调用的函数，判断方块在4*4矩阵里左上角坐标，判断方块的宽度
 {
            int n = 0;//记录方块在4*4矩阵中的最下方方块的y轴坐标,

            upleft[0]=0;//初始化upleft
            upleft[1]=0;
            downright[0]=0;//初始化downright
            downright[1]=0;
            for(int i=0,q=0;i<4;i++)//q判断是否已记录方块左边缘在4*4矩阵的位置
                for(int j=0;j<4;j++)
                    if(coordinate[i][j]==1)
                    {
                        if(q==0)//第一个方块的x轴坐标为方块在4*4矩阵中左上角的x轴坐标
                        {
                            upleft[0] = i;
                            upleft[1] = j;
                            q = 1;
                        }
                        if(upleft[1] > j)//最上方方块的y轴坐标为方块在4*4中左上角的y轴坐标
                            upleft[1] = j;
                        if(n < j)//记录最下方方块的y轴坐标
                            n = j;
                        downright[0] = i-upleft[0];//判断方块的宽度
                        downright[1] = n-upleft[1];//判断方块的高度
                    }
 }

 

   private void write(int a,int b)//此函数为以上函数调用的函数，把移动后的方块画入游戏盘,a为x轴移动距离,b为y轴移动距离
        {
           for(int i=0;i<=downright[0];i++)//擦除移动前的方块
               for(int j=0;j<=downright[1];j++)
                   if(coordinate[i+upleft[0]][j+upleft[1]]==1)
                       gTable.myTable[x+i][y+j]=0;
            x+=a;
            y+=b;
            for(int i=0;i<=downright[0];i++)//画入移动后的方块
                for(int j=0;j<=downright[1];j++)
                    if(coordinate[i+upleft[0]][j+upleft[1]]==1)
                        gTable.myTable[x+i][y+j]=1;
        }
}

 

 

 

 

 

以上为方块的旋转移动的ROOT类，以4*4点阵形式运算和处理，游戏桌设计为15*20的点阵。

 

当需要创建一个方块时，需要新建一个类，并继承ROOT类，并给coordinate赋值。

 

在游戏桌上使用方块实例的方法

 

 

以下为I型方块创建实例：

 

public class One extends Root//第一个方块
{
        public One()
        {
                //I字型方块
                coordinate = new int[][]
                {
                     {1,1,1,1},
                     {0,0,0,0},
                     {0,0,0,0},
                     {0,0,0,0}
                };

         }

 

         public static void main(String args[])
         {
             new One();
         }
}