不知道为什么一直不能出while循环

[Ruuku]

做了一个在控制台运行的俄罗斯方块的游戏

但现在卡住了

运行这个代码的时候，方块的循环一直出不去

我的想法大致是方块触底或接触方块时，将mainScreen有方块的地方改了，然后直接出循环，出下一个方块

但现在不知道为什么，主界面是改了，但新房快一直不出来

输入命令动的还是原来的方块

public class TetrisBlock {
public static void main( String[] args ) {
java.util.Scanner sc = new java.util.Scanner(System.in);
int[][] mainScreen = new int[25][15];
for (int i = 0 ; i <= 14 ; i++) {
for (int j = 0; j <= 24 ; j++ ) {
if (j==0||j==24) {
mainScreen[j][i]=1;
} else {
mainScreen[j][i]=0;
}
}
}
int[][] mainScreen1 = mainScreen;
while ( true ) {
int a = 11, b = -1;
int random = (int)(Math.random()*7);
int[][] block1 = block(random);
reprint(a,b,block1,mainScreen1);
while ( end(mainScreen, mainScreen1) ) {
String input = sc.next();
int[][] block2 = {{0,1,0,0},{0,1,0,0},{0,1,0,0},{0,1,0,0}};
switch(input) {
case "w":
if ( random == 0 || random == 1 || random == 2 || random == 3 || random ==4) {
int[][] temp = new int[3][3];
for (int i = 0; i <= 2 ; i++) {
for (int j = 0; j <= 2 ; j++ ) {
temp[j][i] = block1[i][2-j];
}
}
block1 = temp;
};
if ( random == 5) {
int[][] temp = block1;
block1 = block2;
block2 = temp;
}
if (random == 6) {
}
break;
case "a":
a-=1;
b+=1;
break;
case "s":
b+=1;
break;
case "d":
a+=1;
b+=1;
break;
default:
System.out.println("NOT AVAILABLE");
break;
}
mainScreen = mainScreen1;
mainScreen1 = border1(random, a, b, block1, mainScreen);
reprint(a,b,block1,mainScreen);
}
}
}

public static boolean end( int[][] mainScreen, int[][] mainScreen1 ) {
if (mainScreen == mainScreen1 ) {
return true;
}
return false;
}



public static int[][] block(int random) {
if (random == 0) {
return new int[][] {{1,0,0},{1,0,0},{1,1,0}};
}
if (random == 1) {
return new int[][] {{1,1,0},{1,0,0},{1,0,0}};
}
if (random == 2) {
return new int[][] {{1,1,0},{0,1,1},{0,0,0}};
}
if (random == 3) {
return new int[][] {{0,1,1},{1,1,0},{0,0,0}};
}
if (random == 4) {
return new int[][] {{1,0,0},{1,1,0},{1,0,0}};
}
if (random == 5) {
return new int[][] {{0,0,0,0},{1,1,1,1},{0,0,0,0},{0,0,0,0}};
}
if (random == 6) {
return new int[][] {{1,1},{1,1}};
} else {
return new int[][] {{0},{0}};
}
}


public static void reprint(int a, int b,int[][] block, int[][] mainScreen/*, int[][] block*/) {
System.out.println("Next Block");
/*for (int i = 0 ; i< length.block ; i++ )
{
for (int j = 0; j< length.block[i] ; j++ )
{
if (block[j][i] = 1)
{
System.out.print("*");
}
if (j=2)
{
System.out.print("\n");
}
else
{
System.out.print(" ");
}
}
}*/

for (int i = 0 ; i <= 14 ; i++) {
for (int j = 0; j <= 24 ; j++ ) {
if (mainScreen[j][i]==1) {
System.out.print("|");
if (j == 24) {
System.out.println();
}
continue;
}
if (mainScreen[j][i] == 2) {
System.out.print("*");
continue;
}
if (j>=a&&i>=b&&j<=(a+2)&&i<=(b+2)&&block[j-a][i-b]==1&&mainScreen[j][i] == 0) {
System.out.print("*");
continue;
} else {
System.out.print(" ");
continue;
}
}
}
System.out.println("-------------------------");
System.out.println("INSTRUCTOR: a=left b=right w=rotate s=down");
System.out.print("Command:");

}

public static int[][] border1(int random, int a, int b, int[][] block, int[][] mainScreen ) {
int temp = a;
if ( random == 0 || random == 1 || random == 2 || random == 3 || random ==4) {
for (int i = 0 ; i <= 14 ; i++) {
for (int j = 0; j <= 24 ; j++ ) {
if (j>=a && i>=b && j<=(a+2) &&i <=(b+2) && block[j-a][i-b]==1 && (mainScreen[j][i] == 2 || i == 14)) {
temp -= 1;
break;
} else {
}
}
}
}
if (random == 5) {
for (int i = 0 ; i <= 14 ; i++) {
for (int j = 0; j <= 24 ; j++ ) {
if (j>=a && i>=b && j<=(a+3) &&i <=(b+3) && block[j-a][i-b]==1 && (mainScreen[j][i] == 2 || i == 14)) {
temp -= 1;
break;
} else {
}
}
}
}
if (random == 6) {
for (int i = 0 ; i <= 14 ; i++) {
for (int j = 0; j <= 24 ; j++ ) {
if (j>=a && i>=b && j<=(a+1) && i <=(b+1) && block[j-a][i-b]==1 && (mainScreen[j][i] == 2 || i == 14)) {
temp -= 1;
break;
} else {
}
}
}
}
if (temp < a) {
a = temp;
for (int i = 0 ; i <= 14 ; i++) {
for (int j = 0; j <= 24 ; j++ ) {
if (j>=a&&i>=b&&j<=(a+2)&&i<=(b+2)&&block[j-a][i-b]==1) {
mainScreen[j+1][i]=2;
}
}
}
}
return mainScreen;
}

public static int border2(int random, int a, int b, int[][] block, int[][] mainScreen ) {
int j1 = 1;
int j2 = 24;
for (int i = 0 ; i <= 14 ; i++ ) {
if (i>=b && i <=(b+1) && block[j1-a][i-b]==1) {
return 1;
}
if (i>=b && i <=(b+1) && block[j1-a][i-b]==1) {
return 2;
}
}
return 0;
}
}

[江湖评谈]

代码太长了，懒得看......

[枫舞蝶刺]

int[][] mainScreen1 = mainScreen; 两个数组指向同一个地址

[枫舞蝶刺]

引用 2 楼 qq_40224672 的回复:

int[][] mainScreen1 = mainScreen; 两个数组指向同一个地址

大致改了一下

public class TetrisBlock  {

		   public static void main( String[] args ) {
		       java.util.Scanner sc = new java.util.Scanner(System.in);
		       int[][] mainScreen = new int[25][15];
		       int[][] mainScreen1 = new int[25][15];
		       for (int i = 0 ; i <= 14 ; i++) {
		           for (int j = 0; j <= 24 ; j++ ) {
		               if (j==0||j==24) {
		                   mainScreen[j][i]=1;
		                   mainScreen1[j][i]=1;
		               } else {
		                   mainScreen[j][i]=0;
		                   mainScreen1[j][i]=0;
		               }
		           }
		       }
		       //int[][] mainScreen1 =mainScreen;
		       while ( true ) {
		           int a = 11, b = -1;
		           int random = (int)(Math.random()*7);
		           int[][] block1 = block(random);
		           reprint(a,b,block1,mainScreen1);
		           while ( end(mainScreen, mainScreen1) ) {
		               String input = sc.next();
		               int[][] block2 = {{0,1,0,0},{0,1,0,0},{0,1,0,0},{0,1,0,0}};
		               switch(input) {
		                   case "w":
		                       if ( random == 0 || random == 1 || random == 2 || random == 3 || random ==4) {
		                           int[][] temp = new int[3][3];
		                           for (int i = 0; i <= 2 ; i++) {
		                               for (int j = 0; j <= 2 ; j++ ) {
		                                   temp[j][i] = block1[i][2-j];
		                               }
		                           }
		                           block1 = temp;
		                       };
		                       if ( random == 5) {
		                           int[][] temp = block1;
		                           block1 = block2;
		                           block2 = temp;
		                       }
		                       if (random == 6) {
		                       }
		                       break;
		                   case "a":
		                       a-=1;
		                       b+=1;
		                       break;
		                   case "s":
		                       b+=1;
		                       break;
		                   case "d":
		                       a+=1;
		                       b+=1;
		                       break;
		                   default:
		                       System.out.println("NOT AVAILABLE");
		                       break;
		               }
		               for (int i = 0; i < mainScreen1.length; i++) {
		            	   for (int j = 0; j < mainScreen1[i].length; j++) {
		            		   mainScreen[i][j]=mainScreen1[i][j];
						   }
		               }
		               //mainScreen = mainScreen1;
		               mainScreen= border1(random, a, b, block1, mainScreen);
		               reprint(a,b,block1,mainScreen);
		           }
		       }
		   }

		   public static boolean end( int[][] mainScreen, int[][] mainScreen1 ) {
			   for (int i = 0; i < mainScreen.length; i++) {
					for (int j = 0; j < mainScreen[i].length; j++) {
						if (mainScreen[i][j] !=mainScreen1[i][j]) {
							for (int j2 = 0; j2 < mainScreen.length; j2++) {
								for (int k = 0; k < mainScreen[j2].length; k++) {
									mainScreen1[j2][k] =mainScreen[j2][k];
								}
							}
							return false;
						}
					}
			   }
		       /*if (mainScreen == mainScreen1 ) {
		           return true;
		       }*/
		       return true;
		   }



		   public static int[][] block(int random) {
		       if (random == 0) {
		           return new int[][] {{1,0,0},{1,0,0},{1,1,0}};
		       }
		       if (random == 1) {
		           return new int[][] {{1,1,0},{1,0,0},{1,0,0}};
		       }
		       if (random == 2) {
		           return new int[][] {{1,1,0},{0,1,1},{0,0,0}};
		       }
		       if (random == 3) {
		           return new int[][] {{0,1,1},{1,1,0},{0,0,0}};
		       }
		       if (random == 4) {
		           return new int[][] {{1,0,0},{1,1,0},{1,0,0}};
		       }
		       if (random == 5) {
		           return new int[][] {{0,0,0,0},{1,1,1,1},{0,0,0,0},{0,0,0,0}};
		       }
		       if (random == 6) {
		           return new int[][] {{1,1,1},{1,1,1},{1,1,1}};
		       } else {
		           return new int[][] {{1,1,1},{1,1,1},{1,1,1}};
		       }
		   }


		   public static void reprint(int a, int b,int[][] block, int[][] mainScreen/*, int[][] block*/) {
		       System.out.println("Next Block");
		       /*for (int i = 0 ; i< length.block ; i++ )
		       {
		          for (int j = 0; j< length.block[i] ; j++ )
		          {
		             if (block[j][i] = 1)
		             {
		                System.out.print("*");
		             }
		             if (j=2)
		             {
		                System.out.print("\n");
		             }
		             else
		             {
		                System.out.print(" ");
		             }
		          }
		       }*/

		       for (int i = 0 ; i <= 14 ; i++) {
		           for (int j = 0; j <= 24 ; j++ ) {
		               if (mainScreen[j][i]==1) {
		                   System.out.print("|");
		                   if (j == 24) {
		                       System.out.println();
		                   }
		                   continue;
		               }
		               if (mainScreen[j][i] == 2) {
		                   System.out.print("*");
		                   continue;
		               }
		               if (j>=a&&i>=b&&j<=(a+2)&&i<=(b+2)&&block[j-a][i-b]==1&&mainScreen[j][i] == 0) {
		                   System.out.print("*");
		                   continue;
		               } else {
		                   System.out.print(" ");
		                   continue;
		               }
		           }
		       }
		       System.out.println("-------------------------");
		       System.out.println("INSTRUCTOR: a=left b=right w=rotate s=down");
		       System.out.print("Command:");

		   }

		   public static int[][] border1(int random, int a, int b, int[][] block, int[][] mainScreen ) {
		       int temp = a;
		       if ( random == 0 || random == 1 || random == 2 || random == 3 || random ==4) {
		           for (int i = 0 ; i <= 14 ; i++) {
		               for (int j = 0; j <= 24 ; j++ ) {
		                   if (j>=a && i>=b && j<=(a+2) &&i <=(b+2) && block[j-a][i-b]==1 && (mainScreen[j][i] == 2 ||  i == 14)) {
		                       temp -= 1;
		                       break;
		                   } else {
		                   }
		               }
		           }
		       }
		       if (random == 5) {
		           for (int i = 0 ; i <= 14 ; i++) {
		               for (int j = 0; j <= 24 ; j++ ) {
		                   if (j>=a && i>=b && j<=(a+3) &&i <=(b+3) && block[j-a][i-b]==1 && (mainScreen[j][i] == 2 ||  i == 14)) {
		                       temp -= 1;
		                       break;
		                   } else {
		                   }
		               }
		           }
		       }
		       if (random == 6) {
		           for (int i = 0 ; i <= 14 ; i++) {
		               for (int j = 0; j <= 24 ; j++ ) {
		                   if (j>=a && i>=b && j<=(a+1) && i <=(b+1) && block[j-a][i-b]==1 && (mainScreen[j][i] == 2 ||  i == 14)) {
		                       temp -= 1;
		                       break;
		                   } else {
		                   }
		               }
		           }
		       }
		       if (temp < a) {
		           a = temp;
		           for (int i = 0 ; i <= 14 ; i++) {
		               for (int j = 0; j <= 24 ; j++ ) {
		                   if (j>=a&&i>=b&&j<=(a+2)&&i<=(b+2)&&block[j-a][i-b]==1) {
		                       mainScreen[j+1][i]=2;
		                   }
		               }
		           }
		       }
		       return mainScreen;
		   }

		   public static int border2(int random, int a, int b, int[][] block, int[][] mainScreen ) {
		       int j1 = 1;
		       int j2 = 24;
		       for (int i = 0 ; i <= 14 ; i++ ) {
		           if (i>=b && i <=(b+1) && block[j1-a][i-b]==1) {
		               return 1;
		           }
		           if (i>=b && i <=(b+1) && block[j1-a][i-b]==1) {
		               return 2;
		           }
		       }
		       return 0;
		   }
}

[xin若止水]

java输入一个自然数n 1到n有多少个2怎么用循环写啊