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喜欢ヅ旅行 2022-11-30 12:26 170阅读 0赞

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dfd2VpeGlhb3Rhbw_size_16_color_FFFFFF_t_70_pic_center]  
可以通过指定四个方向，上下左右，判断下个方向应该是朝哪个方向。  
代码如下：简单易懂

#include <iostream>
    #include <cstdlib>
    #include <string.h>
    using namespace std;
    enum Direction{ 
        RIGHT,
        DOWN,
        LEFT,
        UP
    };
    int snake[4][4]{ 0};
    Direction dd = RIGHT;
    Direction judgeDirection(int row, int col)
    { 
        Direction dddd = dd;
        switch (dddd) { 
           case RIGHT:
            if(col == 3 || snake[row][col + 1] != 0)
            { 
                dddd = DOWN;
            }
            break;
        case DOWN:
            if(row == 3 || snake[row + 1][col] != 0)
            { 
                dddd = LEFT;
            }
            break;
        case LEFT:
            if(col == 0 || snake[row][col - 1] != 0)
            { 
                dddd = UP;
            }
            break;
        case UP:
            if(snake[row - 1][col] != 0)
            { 
                dddd = RIGHT;
            }
            break;
        }
        dd = dddd;
        return dddd;
    }
    
    void init_Arr()
    { 
        int i = 0;
        int row = 0;
        int cols = 0;
        int value = 1;
        while(i < 4 * 4)
        { 
            snake[row][cols] = value;
            Direction tmp = judgeDirection(row, cols);
            switch (tmp) { 
               case RIGHT:
                cols++;
                break;
            case DOWN:
                row++;
                break;
            case LEFT:
                cols--;
                break;
            case UP:
                row--;
                break;
            }
            value++;
            i++;
        }
    }
    int main()
    { 
        int arr[4][4];
        int cols = 4;
        int rows = 4;
        init_Arr();
        for(int i = 0; i < 4; i++)
        { 
            for(int j = 0; j < 4; j++)
            { 
                cout<<snake[i][j]<<" ";
            }
            cout<<endl;
        }
        return 0;
    }

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