C语言——贪吃蛇（第二阶段小蛇的移动-白红宇

C语言——贪吃蛇（第二阶段小蛇的移动

阅读量：5023 次

发布时间：2019-06-12

本文共 2361 字，大约阅读时间需要 7 分钟。

#include
     
      #include
      
       #include
       
        #define High 20         //游戏画面尺寸#define Width 30//全局变量tint canvas[High][Width] = {
   0};int moveDirection;void gotoxy(int x, int y){    HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);    COORD pos;    pos.X = x;    pos.Y = y;    SetConsoleCursorPosition(handle,pos);}void moveSneakeByDirection(){    int i,j;    for(i = 1; i < High-1; i++)        for(j = 1; j < Width-1; j++)            if(canvas[i][j] > 0)                canvas[i][j]++;    int oldTail_i, oldTail_j, oldHead_i, oldHead_j;    int max = 0;    for(i = 1; i < High-1; i++)        for(j = 1; j < Width-1; j++)            if(canvas[i][j] > 0)    {        if(max < canvas[i][j])        {            max = canvas[i][j];            oldTail_i = i;            oldTail_j = j;        }        if(canvas[i][j] == 2)        {            oldHead_i = i;            oldHead_j = j;        }    }    canvas[oldTail_i][oldTail_j] = 0;    if(moveDirection == 1)        canvas[oldHead_i-1][oldHead_j] = 1;    if(moveDirection == 2)        canvas[oldHead_i+1][oldHead_j] = 1;    if(moveDirection == 3)        canvas[oldHead_i][oldHead_j-1] = 1;    if(moveDirection == 4)        canvas[oldHead_i][oldHead_j+1] = 1;}void startup()          //数据初始化{    int i,j;    //初始化边框    for(i = 0; i < High; i++)    {        canvas[i][0] = -1;        canvas[i][Width-1] = -1;    }    for(j = 0; j < Width; j++)    {        canvas[0][j] = -1;        canvas[High-1][j] = -1;    }    //初始化蛇头的位置    canvas[High/2][Width/2] = 1;    //初始化蛇身，画布中的元素值分别为2，3，4，5等    for(i = 1; i <= 4; i++)        canvas[High/2][Width/2-i] = i+1;    moveDirection = 4;}void show()         //显示画面{    gotoxy(0,0);    int i,j;    for(i = 0; i < High; i++)    {        for(j = 0; j < Width; j++)        {        if(canvas[i][j] == 0)            printf(" ");        else if(canvas[i][j] == -1)            printf("#");        else if(canvas[i][j] == 1)            printf("@");            //蛇头        else if(canvas[i][j] > 1)            printf("*");            //蛇身        }        printf("\n");    }}void updateWithoutInput()       //与用户输入无关的更新{}void updateWithInput()          //与用户输入有关的更新{}int main(){    startup();    while(1)    {        show();        updateWithoutInput();        updateWithInput();    }    return 0;}