贪吃蛇游戏

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贪吃蛇游戏

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程序代码如下：

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Snake.h

#ifndef _SNAKE_H__
#define _SNAKE_H__

#include <stdio.h>
#include <Windows.h>
#include <stdlib.h>
#include <time.h>

enum Direction
{
	UP=1,
	DOWN,
	LEFT,
	RIGHT
};

enum GameStatus
{
	OK,
	NORMAL_END,
	KILL_BY_WALL,
	KILL_BY_SELF
	
};

#define WALL "■"
#define SNAKEHEAD "★"
#define SNAKE "●"
#define FOOD "◆"
#define INIT_X 20
#define INIT_Y 10

typedef struct SnakeNode
{
	int x;
	int y;
	struct SnakeNode *next;
}SnakeNode, *pSnakeNode;

typedef struct Snake
{
	pSnakeNode _pSnake;//维护蛇身的指针
	pSnakeNode _pFood;//维护食物的位置；
	int _TotalScore; //总分数；
	int _AddScore;  //增加的分数；
	int _SleepTime; //休眠时间；
	enum Direction _Dir;
	enum GameStatus _Status;

}Snake,*pSnake;

int color(int x);
void SetPos(int x, int y);
void WelcomeToGame();
void CreateMap();
pSnakeNode BuyNode();
void InitSnake(pSnake ps);
void CreateFood(pSnake ps);
void GameStart(pSnake ps);
void Pause();
int NextHasFood(pSnakeNode pn, pSnakeNode pf);
void EatFood(pSnake ps, pSnakeNode pn);
void NoFood(pSnake ps, pSnakeNode pn);
void SnakeMove(pSnake ps);
void KillByWall(pSnake ps);
void KillBySelf(pSnake ps);
void PrintHelpInfo(pSnake ps);
void GameRun(pSnake ps);
void GameOver(pSnake ps);

#endif //_SNAKE_H__

Snake.c

#define _CRT_SECURE_NO_WARNINGS

#include "Snake.h"

int color(int x)
{
	SetConsoleTextAttribute(GetStdHandle(STD_ERROR_HANDLE), x);
	return x;
}

void SetPos(int x, int y)
{
	COORD pos = {0};
	HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
	pos.X = x;
	pos.Y = y;
	SetConsoleCursorPosition(handle, pos);
}

void WelcomeToGame()
{
	//设置窗口大小
	system("mode con cols=100 lines=30");
	SetPos(45, 14);
	printf("欢迎来到贪吃蛇小游戏\n");
	SetPos(40, 28);
	system("pause");
	system("cls");
	SetPos(40,13);
	printf("用↑，↓，←，→来控制蛇的移动，F1为加速。F2为减速。");
	SetPos(40, 14);
	printf("加速获得分数更多。");
	SetPos(40, 28);
	system("pause");
	system("cls");
}

void CreateMap()
{
	color(9);
	int i = 0;
	int j = 0;
	//上
	for (i = 0; i <= 58; i += 2)
	{
		SetPos(i, 0);
		printf(WALL);
	}
	//下
	for (i = 0; i <= 58; i += 2)
	{
		SetPos(i, 27);
		printf(WALL);
	}
	//左
	for (i = 1; i <= 26; i++)
	{
		SetPos(0, i);
		printf(WALL);
	}
	//右
	for (i = 1; i <= 26; i++)
	{
		SetPos(58, i);
		printf(WALL);
	}
	//中间背景
	color(11);
	for (i = 1; i <= 26; i++)
	{
		for (j = 2; j <= 56; j += 2)
		{
			SetPos(j, i);
			printf(WALL);
		}
	}
}
pSnakeNode BuyNode()
{
	pSnakeNode pRet = (pSnakeNode)malloc(sizeof(SnakeNode));
	if (pRet == NULL)
	{
		perror("BuyNode::malloc()");
		exit(EXIT_FAILURE);
	}
	pRet->x = 0;
	pRet->y = 0;
	pRet->next = NULL;
	return pRet;
}
void InitSnake(pSnake ps)
{
	color(181);
	pSnakeNode first = BuyNode();
	pSnakeNode cur = NULL;
	int i = 0;
	first->x = INIT_X;
	first->y = INIT_Y;

	for (i = 1; i <= 4; i++)
	{
		cur = BuyNode();
		cur->x = first->x + 2;
		cur->y = first->y;
		cur->next = first;
		first = cur;
	}
	//...
	/*while (cur)
	{
		SetPos(cur->x, cur->y);
		printf(FOOD);
		cur = cur->next;
	}*/
	SetPos(cur->x, cur->y);
	printf(SNAKEHEAD);
	while (cur->next)
	{
		SetPos(cur->next->x, cur->next->y);
		printf(SNAKE);
		cur = cur->next;
	}
	ps->_pSnake = first;
	SetPos(30, 13);
	//printf("\n");
}

void CreateFood(pSnake ps)
{
	color(181);
	pSnakeNode pFood = BuyNode();
	pSnakeNode cur = ps->_pSnake;
	pFood->y = rand() % 26 + 1;//1--26
	do
	{
		pFood->x = rand() % 55 + 2;//2--56
	} while (pFood->x % 2 != 0);
	//
	while (cur)
	{
		if (cur->x == pFood->x && cur->y == pFood->y)
		{
			CreateFood(ps);
			return;
		}
		cur = cur->next;
	}
	ps->_pFood = pFood;
	SetPos(pFood->x, pFood->y);
	printf(FOOD);
}

void GameStart(pSnake ps)
{
	//打印欢迎界面
	WelcomeToGame();
	//printf("%d\n", strlen("■"));
	//创建地图
	CreateMap();
	//初始化蛇
	InitSnake(ps);
	//初始化食物
	CreateFood(ps);
	//
	ps->_AddScore = 10;
	ps->_TotalScore = 0;
	ps->_Dir = RIGHT;
	ps->_SleepTime = 200;
	ps->_Status = OK;
}

void Pause()
{
	while (1)
	{
		Sleep(100);
		if (GetAsyncKeyState(VK_SPACE))
		{
			break;
		}
	}
}

int NextHasFood(pSnakeNode pn, pSnakeNode pf)
{
	return ((pn->x == pf->x) && (pn->y == pf->y));
}

void EatFood(pSnake ps, pSnakeNode pn)
{
	color(181);
	pSnakeNode cur = NULL;
	pn->next = ps->_pSnake;
	ps->_pSnake = pn;

	cur = ps->_pSnake;
	ps->_TotalScore += ps->_AddScore;
	SetPos(cur->x, cur->y);
	printf(SNAKEHEAD);
	while (cur->next)
	{
		SetPos(cur->next->x, cur->next->y);
		printf(SNAKE);
		cur = cur->next;
	}
	CreateFood(ps);
}

void NoFood(pSnake ps, pSnakeNode pn)
{
	color(181);
	pSnakeNode cur = NULL;
	pn->next = ps->_pSnake;
	ps->_pSnake = pn;

	cur = ps->_pSnake;
	SetPos(cur->x, cur->y);
	printf(SNAKEHEAD);
	while (cur->next->next)
	{
		SetPos(cur->next->x, cur->next->y);
		printf(SNAKE);
		cur = cur->next;
	}
	SetPos(cur->next->x, cur->next->y);
	color(11);
	printf(WALL);
	free(cur->next);
	cur->next = NULL;
}

void SnakeMove(pSnake ps)
{
	pSnakeNode pNextNode = BuyNode();
	switch (ps->_Dir)
	{
	case UP:
	{
			   pNextNode->x = ps->_pSnake->x;
			   pNextNode->y = ps->_pSnake->y - 1;
			   if (NextHasFood(pNextNode, ps->_pFood))
			   {
				   //下一个节点是食物
				   EatFood(ps, pNextNode);
			   }
			   else
			   {
				   NoFood(ps, pNextNode);
			   }
	}
		break;
	case DOWN:
	{
				 pNextNode->x = ps->_pSnake->x;
				 pNextNode->y = ps->_pSnake->y + 1;
				 if (NextHasFood(pNextNode, ps->_pFood))
				 {
					 //下一个节点是食物
					 EatFood(ps, pNextNode);
				 }
				 else
				 {
					 NoFood(ps, pNextNode);
				 }
	}
		break;
	case LEFT:
	{
				 pNextNode->x = ps->_pSnake->x-2;
				 pNextNode->y = ps->_pSnake->y;
				 if (NextHasFood(pNextNode, ps->_pFood))
				 {
					 //下一个节点是食物
					 EatFood(ps, pNextNode);
				 }
				 else
				 {
					 NoFood(ps, pNextNode);
				 }
	}
		break;
	case RIGHT:
	{
				  pNextNode->x = ps->_pSnake->x+2;
				  pNextNode->y = ps->_pSnake->y;
				  if (NextHasFood(pNextNode, ps->_pFood))
				  {
					  //下一个节点是食物
					  EatFood(ps, pNextNode);
				  }
				  else
				  {
					  NoFood(ps, pNextNode);
				  }
	}
		break;
	}
}

void KillByWall(pSnake ps)
{
	if (ps->_pSnake->x == 0 ||
		ps->_pSnake->x == 58 ||
		ps->_pSnake->y == 0 ||
		ps->_pSnake->y == 27)
	{
		ps->_Status = KILL_BY_WALL;
	}
}

void KillBySelf(pSnake ps)
{
	pSnakeNode pNext = ps->_pSnake->next;
	while (pNext)
	{
		if ((pNext->x == ps->_pSnake->x) && (pNext->y == ps->_pSnake->y))
		{
			ps->_Status = KILL_BY_SELF;
			return;		 
		}
		pNext = pNext->next;
	}
}

void PrintHelpInfo(pSnake ps)
{
	color(15);
	SetPos(65, 12);
	printf("用↑，↓，←，→来控制蛇的移动。");
	SetPos(65, 13);
	printf("按F1加速，按F2减速。\n");
	SetPos(65, 14);
	printf("按空格暂停，加速获得分数更多。\n");
	SetPos(65, 15);
	printf("按 Esc 退出游戏\n");
	SetPos(65, 8);
	printf("总分：%d ", ps->_TotalScore);
	SetPos(65, 9);
	printf("每个食物得分：%d ", ps->_AddScore);
}

void GameRun(pSnake ps)
{
	do
	{
		//确定方向
		PrintHelpInfo(ps);
		if (GetAsyncKeyState(VK_UP) && ps->_Dir != DOWN)
		{
			ps->_Dir = UP;
		}
		else if (GetAsyncKeyState(VK_DOWN) && ps->_Dir != UP)
		{
			ps->_Dir = DOWN;
		}
		else if (GetAsyncKeyState(VK_LEFT) && ps->_Dir != RIGHT)
		{
			ps->_Dir = LEFT;
		}
		else if (GetAsyncKeyState(VK_RIGHT) && ps->_Dir != LEFT)
		{
			ps->_Dir = RIGHT;
		}
		else if (GetAsyncKeyState(VK_SPACE))
		{
			//暂停游戏
			Pause();
		}
		else if (GetAsyncKeyState(VK_ESCAPE))
		{
			//结束游戏
			ps->_Status = NORMAL_END;
			break;
		}
		else if (GetAsyncKeyState(VK_F1))
		{
			//加速
			if (ps->_SleepTime >= 40)
			{
				ps->_SleepTime -= 20;
				ps->_AddScore += 2;
			}
		}
		else if (GetAsyncKeyState(VK_F2))
		{
			//减速
			if (ps->_SleepTime <= 300)
			{
				ps->_SleepTime += 20;
				ps->_AddScore -= 2;
			}
			if (ps->_SleepTime > 300)
			{
				ps->_AddScore = 1;
			}
		}
		Sleep(ps->_SleepTime);
		//蛇的移动
		SnakeMove(ps);
		KillByWall(ps);
		KillBySelf(ps);
	} while (ps->_Status == OK);
}

void GameOver(pSnake ps)
{
	color(15);
	pSnakeNode cur = ps->_pSnake;
	SetPos(26, 14);
	if (ps->_Status == NORMAL_END)
	{
		printf("正常结束游戏\n");
		SetPos(26, 16);
	}
	else if (ps->_Status == KILL_BY_SELF)
	{
		printf("自杀式死亡:(\n");
		SetPos(26, 16);
	}
	else if (ps->_Status == KILL_BY_WALL)
	{
		printf("撞墙!!!\n");
		SetPos(26, 16);
	}
	while (cur)
	{
		pSnakeNode del = cur;
		cur = cur->next;
		free(del);
		del = NULL;
	}
	ps->_pSnake = NULL;
	free(ps->_pFood);
	ps->_pFood = NULL;
}

test.c

#define _CRT_SECURE_NO_WARNINGS

#include "Snake.h"

void test()
{
	Snake snake = {0};//创建贪吃蛇
	srand((unsigned int)time(NULL));
	GameStart(&snake);
	GameRun(&snake);
	GameOver(&snake);
}

//这是用来查看颜色对应编号的代码，可以给界面添加自己喜欢的颜色
void Test()
{
	//181淡蓝背景紫色
	//190淡蓝背景金色
	int i = 0;
	while (i < 600)
	{
		printf("%d ", color(i));
		i++;
	}
}

int main()
{
	test();
	//Test();
	system("pause");
	return 0;
}

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程序运行结果如下：

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正常结束游戏

撞北墙

自杀