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不知道为什么一直不能出while循环

Ruuku 2018-11-09 02:14:02

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;
}
}

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xin若止水 2018-11-11

java输入一个自然数n 1到n有多少个2怎么用循环写啊

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C_L101_10_0 2018-11-09

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;

		   }

}