C语言小游戏--贪吃蛇（完整代码）

前言

本文基于C语言，写的一游戏代码，可以利用键盘控制小蛇的移动，吃到食物，小蛇长度增加，得分加一，碰到砖块或是自己游戏失败。

代码

#include"game.h"//全局变量
#define High 20
#define Width 30int canvas[High][Width] = { 0 };
int food_x, food_y;					//0为空格  -1为边框# 1表示蛇头@ 大于1表示蛇身* -2为食物 
int moveDirection;		//小蛇的移动方向    上下左右1234
int score;			//得分
//移动小蛇
// 第一步扫描数组canvas的多有元素  找到正数元素+1；
// 找到最大的元素值，将其 变为0    //蛇尾消失
// 找到为2的元素  蛇头一局输入 将对应方向的的像素值加一
void moveSnakeByDirection()
{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;}}int newHead_i, newHead_j;if (moveDirection == 1)//上移动{newHead_i = oldHead_i - 1;newHead_j = oldHead_j;}if (moveDirection == 2)//下移动{newHead_i = oldHead_i + 1;newHead_j = oldHead_j;}if (moveDirection == 3)//左移动{newHead_i = oldHead_i;newHead_j = oldHead_j-1;}if (moveDirection == 4)//右移动{newHead_i = oldHead_i;newHead_j = oldHead_j + 1;}//如果蛇头吃到食物if (canvas[newHead_i][newHead_j] == -2){score++;canvas[food_x][food_y] = 0;//产生一个新的食物food_x = rand() % (High - 5) + 2;food_y = rand() % (Width - 5) + 2;canvas[food_x][food_y] = -2;}elsecanvas[oldTail_i][oldTail_j] = 0;//判断🐍是否与自身或边框相撞if (canvas[newHead_i][newHead_j] > 0 || canvas[newHead_i][newHead_j] == -1){printf("游戏失败\n");Sleep(2000);system("pause");exit(0);}elsecanvas[newHead_i][newHead_j] = 1;
}//初始化数据
void startup()
{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canvas[High / 2][Width / 2] = 1;//初始化🐍身体，画布中元素为23456for (i = 1; i <= 4; i++)canvas[High/2][Width / 2 - i] = i + 1;//初始化🐍右移moveDirection = 4;//初始化食物food_x = rand() % (High - 5) + 2;food_y = rand() % (Width - 5) + 2;canvas[food_x][food_y] = -2;}//显示画面
void show()
{gotoxy(0, 0);int i, j;for (i = 0; i < High; i++){for (j = 0; j < Width; j++){if (canvas[i][j] == 0)printf(" ");		//输出空格else if (canvas[i][j] == -1)printf("#");		//输出边框else if (canvas[i][j] == 1)printf("@");		//输出蛇头else if (canvas[i][j] > 1)printf("*");		//输出🐍身else if (canvas[i][j] == -2)printf("F");}printf("\n");}printf("得分：%d\n", score);Sleep(100);
}//输入与用户无关的更新
void updateWithoutInput()
{moveSnakeByDirection();
}//与用户输入有关的更新
void updateWithInput()
{char input;if (_kbhit()){input = _getch();if (input == 'a'){moveDirection = 3;//右移moveSnakeByDirection();}else if (input == 'd'){moveDirection = 4;//左移moveSnakeByDirection();}else if (input == 'w'){moveDirection = 1;//上移moveSnakeByDirection();}else if (input == 's'){moveDirection = 2;//下移moveSnakeByDirection();}}
}
int main()
{HideCursor();startup();while (1){show();updateWithoutInput();updateWithInput();}return 0;
}

后续

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