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C语言游戏实战（11）：贪吃蛇大作战（多人对战）

news 2025/7/4 15:46:20

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贪吃蛇（多人对战）

 前言：

这款贪吃蛇大作战是一款多人游戏，玩家需要控制一条蛇在地图上移动，吞噬其他蛇或者食物来增大自己的蛇身长度和宽度。本游戏使用C语言和easyx图形库编写，旨在帮助初学者了解游戏开发的基本概念和技巧。

在开始编写代码之前，我们需要先了解一下游戏的基本规则和功能：

1. 游戏界面：游戏界面是一个矩形区域，玩家可以在这个区域内控制蛇的移动。

2. 玩家贪吃蛇：玩家控制的小球可以在游戏界面内自由移动，按下空格键可以加速。

3. ai贪吃蛇：ai贪吃蛇会在游戏界面中随机移动。

4. 食物：食物会在游戏界面中随机生成一定的数量，贪吃蛇通过吃食物可以增加蛇的长度和宽度。

5. 贪吃蛇的淘汰：当某条贪吃蛇的头部碰到了其他蛇的尾部或游戏界面的边界，这条蛇就会立马死亡，并且在死亡的地方身体变为食物。

接下来，我们将通过以下几个步骤来实现这个游戏：

1. 初始化游戏基本要素的信息。

2. 处理键盘输入，实现玩家控制贪吃蛇的移动和加速。

3. 控制ai贪吃蛇的移动。

4. 检测贪吃蛇吞噬食物，并增加相应的长度和宽度。

5. 检测贪吃蛇的死亡。

通过学习这个游戏的开发过程，初学者将能够掌握C语言编程和easyx图形库的基本技巧。

1. 初始化基本要素的信息

这款游戏的主要要素有：蛇头、蛇身、食物，而蛇头又分为ai蛇头，与玩家1蛇头，蛇身分为ai蛇身，与玩家1蛇身，其中这些要素都是圆或者由圆组成的，而圆基本特点有半径、颜色、坐标，所以我们需要创建一个包含这几个特点的结构体。

struct ball
{int x;int y;float r;//存放颜色的变量DWORD color;
};

（1）初始化玩家贪吃蛇的信息

开始游戏的时候设置玩家1的位置为(Wide / 2,Hight / 2)（这个可以根据自己的意愿设置），然后就是设置蛇尾的位置了，蛇尾是许多圆相连而成的，所以我们需要设置一个存放蛇尾信息的结构体数组，然后将蛇尾数组的中每个初始化的元素（圆）“连接”在头的右侧，也就是使这个数组中的每个元素的x坐标从头部的坐标开始依次减去一定的值，我们将这个值设为一个圆的直径大小即可。

struct ball player;
struct ball player_body[9999];//玩家1-头
player.x = Wide / 2;
player.y = Hight / 2;
player.r = 10;
//玩家1——蛇身
player_body[0].x = player.x - player.r;
player_body[0].y = player.y;
player_body[0].r = player.r;

（2）初始化食物的信息

食物就是一些半径为5的圆，利用随机值将它们的位置随机分布在游戏地图中。为了使食物的颜色不这么单一，所以颜色也利用随机数随机生成RGB的参数，从而随机生成食物的颜色。

RGB色彩模式是一种工业标准，它通过红（R）、绿（G）、蓝（B）三个颜色通道的组合来表示不同的颜色。每个通道通常分配一个0到255之间的数值，其中0表示该颜色通道没有亮度，255表示该颜色通道的最大亮度。通过调整这三个通道的值，可以生成几乎所有人类视觉系统能够感知的颜色。

	//食物for (int i = 0; i < food_num; i++){food[i].x = rand() % Wide_map;food[i].y = rand() % Hight_map;food[i].r = 5;food[i].color = RGB(rand() % 256, rand() % 256, rand() % 256);}

 （3）初始化ai贪吃蛇的信息

ai的数量不止一条所以，ai的蛇头也不止一个，所以我们需要创建一个结构体数组在存放蛇头的信息，之后就是生成蛇尾，蛇尾的信息则需要我们创建一个二维结构体数组来存放。

struct ball Ai[Ai_num];
struct ball Ai_body[Ai_num][9999];//ai头
for (int i = 0; i < Ai_num; i++)
{Ai[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;
}
//ai身体
for (int i = 0; i < Ai_num; i++)
{Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int j = 1; j < Ai_body_num[i]; j++){Ai_body[i][j].x = Ai_body[i][j - 1].x - Ai_body[i][j - 1].r;Ai_body[i][j].y = Ai_body[i][j - 1].y;Ai_body[i][j].r = Ai_body[i][j - 1].r;}
}

2. 显示在窗口绘制出主要元素的信息

在easyx图形库中提供了一个画实心圆的函数—solidcircle函数，通过它我们就可以在窗口中显示圆了，但显示出的圆默认颜色为白色，要想得到不同颜色的圆，我们还需使用setfillcolor函数来改变圆的颜色。因为显示的函数、玩家操作小球的函数等函数都是放在同一个while循环重复执行的，这样就会重复绘制信息，所以我们还需要用到一个清屏函数cleardevice。为了使游戏界面更美观可以使用setbkcolor函数修改窗口的背景颜色，以及使用line函数在窗口中画一些线，函数setlinecolor可以改变线的颜色。 

void show()
{srand((unsigned)time(NULL));SetWorkingImage(&map);//清屏函数cleardevice();setbkcolor(RGB(236, 236, 244));//划线颜色setlinecolor(RGB(222, 222, 230));//划线for (int i = 0; i < Wide_map; i += 20){line(i, 0, i, Hight_map);}for (int i = 0; i < Hight_map; i += 20){line(0, i, Wide_map, i);}//食物for (int i = 0; i < food_num; i++){setfillcolor(food[i].color );solidcircle(food[i].x, food[i].y, food[i].r);}//玩家1——蛇头setfillcolor(RED);solidcircle(player.x, player.y, player.r);//玩家1——蛇身for (int i = 0; i < body_num; i++){setfillcolor(RGB(149, 236, 105));solidcircle(player_body[i].x, player_body[i].y, player_body[i].r);}//ai蛇头for (int i = 0; i < Ai_num; i++){setfillcolor(RGB(229, 0, 0));solidcircle(Ai[i].x, Ai[i].y, Ai[i].r);}//ai蛇身for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_num[i]; j++){setfillcolor(RGB(229, 196, 0));solidcircle(Ai_body[i][j].x, Ai_body[i][j].y, Ai_body[i][j].r);}}//蛇尸体for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_food_num[i]; j++){setfillcolor(Ai_body_food[i][j].color );solidcircle(Ai_body_food[i][j].x, Ai_body_food[i][j].y, Ai_body_food[i][j].r);}}}

3. 玩家控制贪吃蛇移动

控制蛇的移动分为两步进行操作，一步是玩家控值蛇头的移动，另一步则是蛇尾跟随蛇头的移动。

（1）玩家控制蛇头的移动

在这里需要用到GetAsyncKeyState(vk virtual key)函数获取异步按键状态,其中vk virtual key是虚拟键值，如果接受到这个虚拟键值，它会返回真。0x20、0x41、0x44、0x57、83分别是空格键、a、d、w、s的虚拟键值。

为了保持蛇运动的持续性，不管我们按不按移动键蛇头的坐标都是应该变化的即在游戏的每次循环中都是应该执行蛇头的x坐标+=一个值，蛇头的y坐标+=一个值这两个表达式的，其中这两个值等于蛇的移动速度大小，或者0，且这两个值不能同时为0。通过按键改变这两个值的正负号或者令其中一个值为零，则可以改变蛇头移动的方向

//蛇速度
int player_speed = 10;int playerSpeedCol = 0;
int playerSpeedRow = 0;void Player_move1()
{//蛇头移动//玩家1//上左if (GetAsyncKeyState(0x57) && GetAsyncKeyState(0x41)){playerSpeedCol = -player_speed;playerSpeedRow = -player_speed;}//上右else if (GetAsyncKeyState(0x57) && GetAsyncKeyState(0x44)){playerSpeedCol = -player_speed;playerSpeedRow = player_speed;}//下右else if (GetAsyncKeyState(83) && GetAsyncKeyState(0x44)){playerSpeedCol = player_speed;playerSpeedRow = player_speed;}//下左else if (GetAsyncKeyState(83) && GetAsyncKeyState(0x41)){playerSpeedCol = player_speed;playerSpeedRow = -player_speed;}//左else if (GetAsyncKeyState(0x41)){playerSpeedRow = -player_speed;playerSpeedCol = 0;}//下else if (GetAsyncKeyState(83)){playerSpeedCol = player_speed;playerSpeedRow = 0;}//右else if (GetAsyncKeyState(0x44)){playerSpeedRow = player_speed;playerSpeedCol = 0;}//上else if (GetAsyncKeyState(0x57)){playerSpeedCol = -player_speed;playerSpeedRow = 0;}//加速if (GetAsyncKeyState(0x20)){if (playerSpeedRow > 0)playerSpeedRow = player_speed + 5;if (playerSpeedCol > 0)playerSpeedCol = player_speed + 5;if (playerSpeedRow < 0)playerSpeedRow = -player_speed - 5;if (playerSpeedCol < 0)playerSpeedCol = -player_speed - 5;}else{if (playerSpeedRow > 0)playerSpeedRow = player_speed;if (playerSpeedCol > 0)playerSpeedCol = player_speed;if (playerSpeedRow < 0)playerSpeedRow = -player_speed;if (playerSpeedCol < 0)playerSpeedCol = -player_speed;}//尾部处理int m = player.x;int n = player.y;player.x += playerSpeedRow;player.y += playerSpeedCol;int x = player_body[0].x;int y = player_body[0].y;player_body[0].x = m;player_body[0].y = n;for (int i = 1; i < body_num; i++){int a, b;if (i % 2 == 1){a = player_body[i].x;b = player_body[i].y;player_body[i].x = x;player_body[i].y = y;}else{x = player_body[i].x;y = player_body[i].y;player_body[i].x = a;player_body[i].y = b;}}
}

 （2）蛇尾跟随蛇头

蛇头移动后，蛇尾圆1（也就紧贴蛇头的蛇尾圆）则移动到蛇头移动前的位置，然后蛇尾圆2（也就是紧贴蛇尾圆1的蛇尾圆）则移动到蛇尾1移动前的位置，按照这种方式移动最终将所有的蛇尾圆移动完后，就完成了蛇尾的移动了。具体操作是蛇尾圆1移动前，我们需要用两个变量m，n将蛇尾圆1的x，y值（坐标值）记录下来，然后再用两个变量a，b将蛇尾圆2移动前的坐标值记录下来，最后将m、n的值传递给蛇尾圆2，这样就完成了蛇尾圆2的移动，移动完蛇尾圆2后m、n这两个变量就空了下来，就可以让这两个值记录下一个要移动的圆的坐标，然后重复上面的移动就可以移动完整个蛇尾了，所以整个蛇尾移动的过程中我们只需要设置四个变量就可以了。

4. 地图与玩家视角的设置

由于窗口的大小有限，要想增加游戏的活动面积，我们可以使用IMAGE map(Wide_map, Hight_map) （其中 Wide_map 代表图像的宽度，而 Hight_map 代表图像的高度）创建一个地图。

创建完地图后使用SetWorkingImage(&map)函数，将map的地址作为参数传递给SetWorkingImage函数。这个函数的作用是将map作为当前操作的对象，以便在后续的图像处理过程中使用。最后使用putimage(0, 0, Wide, Hight, &map, x, y) 将地址绘制到窗口上，其中要让玩家小球始终出现在窗口的中央位置，那么其中的x=player.x - (Wide / 2);y=player.y - (Hight / 2);但是单单这样写就会出现窗口越界的情况，所以我们还需要限制x和y的范围：


putimage(0, 0, Wide, Hight, &map, x, y) 这个函数调用是用于在屏幕上的特定位置绘制或显示一个图像。下面是对这个函数调用中各个参数的具体解释：

(0, 0)：这是图像要绘制的目标位置的左上角坐标，即x=0和y=0，通常表示屏幕的左上角。

Wide：这个参数指定了要绘制的图像的宽度。

Hight：这个参数指定了要绘制的图像的高度。

&map：这是一个指向图像内存地址的指针，该图像将被绘制到屏幕上。在这个上下文中，map可能是一个包含了图像数据的数据结构或数组。

x：这个参数通常指定了要开始绘制图像的起始点的x坐标（在图像数据中）。

y：这个参数通常指定了要开始绘制图像的起始点的y坐标（在图像数据中）。

//玩家1视角int x = player.x - (Wide / 2) ;int y = player.y - (Hight / 2);//防止窗口越界if (x < -Wide / 4){x = -Wide / 4;}if (y < 0){y = 0;}if (x > Wide_map - Wide){x = Wide_map - Wide;}if (y > Hight_map - Hight){y = Hight_map - Hight;}//在地图上绘制字体settextcolor(RGB(7, 19, 62));TCHAR buffer[50];TCHAR buffer1[50];swprintf_s(buffer, _T("%d"), score);swprintf_s(buffer1, _T("%d"), kill);setbkmode(TRANSPARENT);settextstyle(20, 0, _T("宋体"));outtextxy(player.x, player.y - player.r * 4 - 20, _T("长度:"));outtextxy(player.x + 50, player.y - player.r * 4 - 20, buffer);outtextxy(player.x, player.y - player.r * 4, _T("击杀:"));outtextxy(player.x + 50, player.y - player.r * 4, buffer1);SetWorkingImage();//把map输出到窗口上putimage(0, 0, Wide / 2, Hight, &map, x + Wide / 4, y);

5. ai贪吃蛇的移动

在这里ai贪吃蛇移动主要有三个特点：

（1）一般情况下，ai贪吃蛇是随机移动的，具体操作为：

蛇在移动的时候无非就只有八种方向：上左、上右、上、下、下左、下右、左、右，这时我们就可以用rand函数得到0-7的随机，每一个随机数对应一种移动方向，这样就完成了蛇的随机移动。

（2）当ai贪吃蛇蛇头靠近玩家的蛇尾时会远离蛇尾，具体操作为：

为了判断蛇头是否靠近了蛇尾，我们需要先写一个计算不同的两个圆的圆心距的函数，来计算蛇头与蛇尾圆之间的距离。而两圆的圆心距就是两圆的圆心坐标的x相减的平方加上y相减的平方再开根号。其中开根号的函数为sqrt，它的头文件是<math.h>。

//距离
int Distance(int x, int y, int x1, int y1)
{return sqrt((x - x1) * (x - x1) + (y - y1) * (y - y1));
}

计算好距离后就可以判断是否靠近了，靠近了就远离，例如，如果蛇头的x坐标值小于玩家蛇尾圆的 x坐标值，也就是说ai蛇头在玩家蛇尾圆的左侧，要想远离这个玩家蛇尾圆我们ai蛇头就应该向左移动。

（3）当ai贪吃蛇蛇头靠近地图边界时会远离边界，具体步骤为：

 方法同上。

//ai移动
void Ai_move()
{srand((unsigned)time(NULL));int count[Ai_num] = { 0 };for (int i = 0; i < Ai_num; i++){//随机移动count[i] = rand() % 8;//蛇头移动//上左if (count[i] == 0){AiSpeedCol[i] = -player_speed;AiSpeedRow[i] = -player_speed;}//上右else if (count[i] == 1){AiSpeedCol[i] = -player_speed;AiSpeedRow[i] = player_speed;}//下右else if (count[i] == 2){AiSpeedCol[i] = player_speed;AiSpeedRow[i] = player_speed;}//下左else if (count[i] == 3){AiSpeedCol[i] = player_speed;AiSpeedRow[i] = -player_speed;}//左else if (count[i] == 4){AiSpeedRow[i] = -player_speed;AiSpeedCol[i] = 0;}//下else if (count[i] == 5){AiSpeedCol[i] = player_speed;AiSpeedRow[i] = 0;}//右else if (count[i] == 6){AiSpeedRow[i] = player_speed;AiSpeedCol[i] = 0;}//上else if (count[i] == 7){AiSpeedCol[i] = -player_speed;AiSpeedRow[i] = 0;}//ai不触碰边界if (Ai[i].x >= Wide_map - player_speed){//左AiSpeedRow[i] = -player_speed;}else if (Ai[i].y >= Hight_map - player_speed){//上AiSpeedCol[i] = -player_speed;}else if (Ai[i].y <= player_speed){//下AiSpeedCol[i] = player_speed;}else if (Ai[i].x <= player_speed){//右AiSpeedRow[i] = player_speed;}//ai躲避玩家1身体for (int j = 0; j < body_num; j++){if (Distance(player_body[j].x, player_body[j].y, Ai[i].x, Ai[i].y) < Ai[i].r + player_body[i].r + 20){//左if (Ai[i].x < player_body[j].x){AiSpeedRow[i] = -player_speed;}//上if (Ai[i].y < player_body[j].y){AiSpeedCol[i] = -player_speed;}//下if (Ai[i].x > player_body[j].x){AiSpeedCol[i] = player_speed;}//右if (Ai[i].y > player_body[j].y){AiSpeedRow[i] = player_speed;}}}//ai躲避玩家2身体for (int j = 0; j < body_num2; j++){if (Distance(player_body2[j].x, player_body2[j].y, Ai[i].x, Ai[i].y) < Ai[i].r + player_body2[i].r + 20){//左if (Ai[i].x < player_body2[j].x){AiSpeedRow[i] = -player_speed;}//上if (Ai[i].y < player_body2[j].y){AiSpeedCol[i] = -player_speed;}//下if (Ai[i].x > player_body2[j].x){AiSpeedCol[i] = player_speed;}//右if (Ai[i].y > player_body2[j].y){AiSpeedRow[i] = player_speed;}}}//尾部处理int m = Ai[i].x;int n = Ai[i].y;Ai[i].x += AiSpeedRow[i];Ai[i].y += AiSpeedCol[i];int x = Ai_body[i][0].x;int y = Ai_body[i][0].y;Ai_body[i][0].x = m;Ai_body[i][0].y = n;for (int j = 1; j < Ai_body_num[i]; j++){int a, b;if (j % 2 == 1){a = Ai_body[i][j].x;b = Ai_body[i][j].y;Ai_body[i][j].x = x;Ai_body[i][j].y = y;}else{x = Ai_body[i][j].x;y = Ai_body[i][j].y;Ai_body[i][j].x = a;Ai_body[i][j].y = b;}}}
}

6.检测贪吃蛇吞噬食物，并增加相应的长度和宽度。

当贪吃蛇靠近食物一定距离时，蛇尾圆的半径和数量就增加，然后被靠近的那个食物就重新生成，这样就完成了一次对食物的吞噬。

void eatfood()
{srand((unsigned)time(NULL));for (int i = 0; i < food_num; i++){//玩家1吃食物if (Distance(food[i].x, food[i].y, player.x, player.y) < player.r + food[i].r + player_speed){score += 3;player.r += 0.01;player_body[0].r = player.r;for (int j = 1; j < body_num; j++){player_body[j].r = player_body[j - 1].r;}food[i].x = rand() % Wide_map;food[i].y = rand() % Hight_map;food[i].r = 5;body_num += 1;player_body[body_num - 1].x = player_body[body_num - 2].x - player_body[body_num - 2].r;player_body[body_num - 1].y = player_body[body_num - 2].y;player_body[body_num - 1].r = player_body[body_num - 2].r;}//ai吃食物for (int j = 0; j < Ai_num; j++){if (Distance(food[i].x, food[i].y, Ai[j].x, Ai[j].y) <= Ai[i].r + food[i].r + player_speed * 3){Ai[j].r += 0.01;Ai_body[j][0].r = Ai[j].r;for (int z = 1; z < Ai_body_num[j]; z++){Ai_body[j][z].r = Ai_body[j][z - 1].r;}food[i].x = rand() % Wide_map;food[i].y = rand() % Hight_map;food[i].r = 5;food[i].color = RGB(rand() % 256, rand() % 256, rand() % 256);Ai_body_num[j] += 1;Ai_body[j][Ai_body_num[j] - 1].x = Ai_body[j][Ai_body_num[j] - 2].x - Ai_body[j][Ai_body_num[j] - 2].r;Ai_body[j][Ai_body_num[j] - 1].y = Ai_body[j][Ai_body_num[j] - 2].y;Ai_body[j][Ai_body_num[j] - 1].r = Ai_body[j][Ai_body_num[j] - 2].r;}}}for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_food_num[i]; j++){//玩家1吃尸体if (Distance(Ai_body_food[i][j].x, Ai_body_food[i][j].y, player.x, player.y)< player.r + Ai_body_food[i][j].r + player_speed){int v = rand() % food_num;score += Ai_body_food[i][j].r / 5 * 3;player.r += Ai_body_food[i][j].r / 5 * 0.01;player_body[0].r = player.r;for (int z = 1; z < body_num; z++){player_body[z].r = player_body[z - 1].r;}Ai_body_food[i][j].x = food[v].x;Ai_body_food[i][j].y = food[v].y;Ai_body_food[i][j].r = food[v].r;Ai_body_food[i][j].color = food[v].color;body_num += Ai_body_food[i][j].r / 5;player_body[body_num - 1].x = player_body[body_num - 2].x - player_body[body_num - 2].r;player_body[body_num - 1].y = player_body[body_num - 2].y;player_body[body_num - 1].r = player_body[body_num - 2].r;}}}//ai吃尸体for (int p = 0; p < Ai_num; p++){for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_food_num[i]; j++){if (Distance(Ai_body_food[i][j].x, Ai_body_food[i][j].y, Ai[p].x, Ai[p].y) <Ai[p].r + Ai_body_food[i][j].r + player_speed){int v = rand() % food_num;Ai[p].r += Ai_body_food[i][j].r / 5 * 0.01;Ai_body[p][0].r = Ai[p].r;for (int z = 1; z < Ai_body_num[p]; z++){Ai_body[p][z].r = Ai_body[p][z - 1].r;}Ai_body_food[i][j].x = food[v].x;Ai_body_food[i][j].y = food[v].y;Ai_body_food[i][j].r = food[v].r;Ai_body_food[i][j].color = food[v].color;Ai_body_num[p] += Ai_body_food[i][j].r / 5;Ai_body[p][Ai_body_num[p] - 1].x = Ai_body[p][Ai_body_num[p] - 2].x - Ai_body[p][Ai_body_num[p] - 2].r;Ai_body[p][Ai_body_num[p] - 1].y = Ai_body[p][Ai_body_num[p] - 2].y;Ai_body[p][Ai_body_num[p] - 1].r = Ai_body[p][Ai_body_num[p] - 2].r;}}}}
}

7. 检测贪吃蛇的死亡。

蛇头碰到别蛇的蛇尾后，该蛇的身体变为尸体，同时重新生成这条蛇。这里我们需要在创建一个结构体数组来专门存放蛇尸体的信息，数组中的每个元素对应着唯一的一条蛇，蛇死了这条蛇的信息就传给放尸体的数组，如果尸体被吃了，就变成食物随机分布在整个游戏界面。

void SnakeOut()
{//玩家1碰到边界if (player.x > Wide_map || player.x <0 || player.y >Hight_map || player.y < 0){body_num = 5;score = 100;kill = 0;//蛇player.x = Wide / 2;player.y = Hight / 2;player.r = 10;//蛇身player_body[0].x = player.x - player.r;player_body[0].y = player.y;player_body[0].r = player.r;for (int i = 1; i < body_num; i++){player_body[i].x = player_body[i - 1].x - player_body[i - 1].r;player_body[i].y = player_body[i - 1].y;player_body[i].r = player_body[i - 1].r;}}for (int i = 0; i < Ai_num; i++){//ai碰到边界if (Ai[i].x > Wide_map || Ai[i].x <0 || Ai[i].y >Hight_map || Ai[i].y < 0){//身体变成食物Ai_body_food_num[i] = Ai_body_num[i];for (int z = 1; z < Ai_body_num[i]; z++){Ai_body_food[i][z].x = Ai_body[i][z].x;Ai_body_food[i][z].y = Ai_body[i][z].y;Ai_body_food[i][z].r = Ai_body[i][z].r;Ai_body_food[i][z].color = RGB(rand() % 256, rand() % 256, rand() % 256);}Ai[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;//ai身体Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int j = 1; j < Ai_body_num[i]; j++){Ai_body[i][j].x = Ai_body[i][j - 1].x - Ai_body[i][j - 1].r;Ai_body[i][j].y = Ai_body[i][j - 1].y;Ai_body[i][j].r = Ai_body[i][j - 1].r;}}//ai碰玩家1蛇尾for (int j = 0; j < body_num; j++){if (Distance(player_body[j].x, player_body[j].y, Ai[i].x, Ai[i].y) < Ai[i].r + player_body[i].r){kill += 1;//尾部变成食物Ai_body_food_num[i] = Ai_body_num[i];for (int z = 1; z < Ai_body_num[i]; z++){Ai_body_food[i][z].x = Ai_body[i][z].x;Ai_body_food[i][z].y = Ai_body[i][z].y;Ai_body_food[i][z].r = Ai_body[i][z].r;Ai_body_food[i][z].color = RGB(rand() % 256, rand() % 256, rand() % 256);}//重新生成aiAi[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;//ai身体Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int z = 1; z < Ai_body_num[i]; z++){Ai_body[i][z].x = Ai_body[i][z - 1].x - Ai_body[i][z - 1].r;Ai_body[i][z].y = Ai_body[i][z - 1].y;Ai_body[i][z].r = Ai_body[i][z - 1].r;}}}//玩家1碰ai蛇尾for (int j = 0; j < Ai_body_num[i]; j++){if (Distance(Ai_body[i][j].x, Ai_body[i][j].y, player.x, player.y) < player.r + Ai_body[i][j].r){body_num = 5;score = 100;kill = 0;//蛇player.x = Wide / 2;player.y = Hight / 2;player.r = 10;//蛇身player_body[0].x = player.x - player.r;player_body[0].y = player.y;player_body[0].r = player.r;for (int i = 1; i < body_num; i++){player_body[i].x = player_body[i - 1].x - player_body[i - 1].r;player_body[i].y = player_body[i - 1].y;player_body[i].r = player_body[i - 1].r;}}}}
}

8. 增加玩家

 要想增加玩家就将玩家1的内容名字写改了然后重复写一遍就行了，想加几个玩家，就写重复写几遍，然后给每一个玩家都给一个视角就行了。

//玩家1视角
int x = player.x - (Wide / 2) ;
int y = player.y - (Hight / 2);//玩家2视角
int x2 = player2.x - (Wide / 2);
int y2 = player2.y - (Hight / 2);SetWorkingImage();//把map输出到窗口上
putimage(0, 0, Wide / 2, Hight, &map, x + Wide / 4, y);
putimage(Wide/2, 0, Wide/2, Hight, &map, x2 + Wide / 4, y2);

源码：

#include<stdio.h>
#include<easyx.h>
#include<time.h>
#include<math.h>#define Wide 1420
#define Hight 660
#define Wide_map Wide*5
#define Hight_map Hight*5
#define food_num 2000
#define Ai_num 98
#define Ai_num2 100
IMAGE map(Wide_map, Hight_map);
int player_speed = 10;
int body_num = 5;int body_num2 = 5;int playerSpeedCol = 0;
int playerSpeedRow = 0;int playerSpeedCol2 = 0;
int playerSpeedRow2 = 0;int AiSpeedCol[Ai_num] = { 0 };
int AiSpeedRow[Ai_num] = { 0 };
int Ai_body_num[Ai_num] = { 0 };
int Ai_body_food_num[Ai_num] = { 0 };int score = 100;
int kill = 0;int score2 = 100;
int kill2 = 0;struct ball
{int x;int y;float r;DWORD color;
};
struct ball player;
struct ball player2;
struct ball Ai[Ai_num];
struct ball food[food_num];
struct ball player_body[9999];
struct ball player_body2[9999];
struct ball Ai_body[Ai_num][9999];
struct ball Ai_body_food[Ai_num][9999];
void init()
{srand((unsigned)time(NULL));//玩家1-头player.x = Wide / 2;player.y = Hight / 2;player.r = 10;//玩家1——蛇身player_body[0].x = player.x - player.r;player_body[0].y = player.y;player_body[0].r = player.r;for (int i = 1; i < body_num; i++){player_body[i].x = player_body[i - 1].x - player_body[i - 1].r;player_body[i].y = player_body[i - 1].y;player_body[i].r = player_body[i - 1].r;}//玩家2-头player2.x = Wide;player2.y = Hight / 2;player2.r = 10;//玩家2——蛇身player_body2[0].x = player2.x - player2.r;player_body2[0].y = player2.y;player_body2[0].r = player2.r;for (int i = 1; i < body_num2; i++){player_body2[i].x = player_body2[i - 1].x - player_body2[i - 1].r;player_body2[i].y = player_body2[i - 1].y;player_body2[i].r = player_body2[i - 1].r;}//食物for (int i = 0; i < food_num; i++){food[i].x = rand() % Wide_map;food[i].y = rand() % Hight_map;food[i].r = 5;food[i].color = RGB(rand() % 256, rand() % 256, rand() % 256);}//ai头for (int i = 0; i < Ai_num; i++){Ai[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;}//ai身体for (int i = 0; i < Ai_num; i++){Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int j = 1; j < Ai_body_num[i]; j++){Ai_body[i][j].x = Ai_body[i][j - 1].x - Ai_body[i][j - 1].r;Ai_body[i][j].y = Ai_body[i][j - 1].y;Ai_body[i][j].r = Ai_body[i][j - 1].r;}}
}
//距离
int Distance(int x, int y, int x1, int y1)
{return sqrt((x - x1) * (x - x1) + (y - y1) * (y - y1));
}
//玩家操作
void Player_move1()
{//蛇头移动//玩家1//上左if (GetAsyncKeyState(0x57) && GetAsyncKeyState(0x41)){playerSpeedCol = -player_speed;playerSpeedRow = -player_speed;}//上右else if (GetAsyncKeyState(0x57) && GetAsyncKeyState(0x44)){playerSpeedCol = -player_speed;playerSpeedRow = player_speed;}//下右else if (GetAsyncKeyState(83) && GetAsyncKeyState(0x44)){playerSpeedCol = player_speed;playerSpeedRow = player_speed;}//下左else if (GetAsyncKeyState(83) && GetAsyncKeyState(0x41)){playerSpeedCol = player_speed;playerSpeedRow = -player_speed;}//左else if (GetAsyncKeyState(0x41)){playerSpeedRow = -player_speed;playerSpeedCol = 0;}//下else if (GetAsyncKeyState(83)){playerSpeedCol = player_speed;playerSpeedRow = 0;}//右else if (GetAsyncKeyState(0x44)){playerSpeedRow = player_speed;playerSpeedCol = 0;}//上else if (GetAsyncKeyState(0x57)){playerSpeedCol = -player_speed;playerSpeedRow = 0;}//加速if (GetAsyncKeyState(0x20)){if (playerSpeedRow > 0)playerSpeedRow = player_speed + 5;if (playerSpeedCol > 0)playerSpeedCol = player_speed + 5;if (playerSpeedRow < 0)playerSpeedRow = -player_speed - 5;if (playerSpeedCol < 0)playerSpeedCol = -player_speed - 5;}else{if (playerSpeedRow > 0)playerSpeedRow = player_speed;if (playerSpeedCol > 0)playerSpeedCol = player_speed;if (playerSpeedRow < 0)playerSpeedRow = -player_speed;if (playerSpeedCol < 0)playerSpeedCol = -player_speed;}//尾部处理int m = player.x;int n = player.y;player.x += playerSpeedRow;player.y += playerSpeedCol;int x = player_body[0].x;int y = player_body[0].y;player_body[0].x = m;player_body[0].y = n;for (int i = 1; i < body_num; i++){int a, b;if (i % 2 == 1){a = player_body[i].x;b = player_body[i].y;player_body[i].x = x;player_body[i].y = y;}else{x = player_body[i].x;y = player_body[i].y;player_body[i].x = a;player_body[i].y = b;}}//玩家2//上左if (GetAsyncKeyState(VK_UP) && GetAsyncKeyState(VK_LEFT)){playerSpeedCol2 = -player_speed;playerSpeedRow2 = -player_speed;}//上右else if (GetAsyncKeyState(VK_UP) && GetAsyncKeyState(VK_RIGHT)){playerSpeedCol2 = -player_speed;playerSpeedRow2 = player_speed;}//下右else if (GetAsyncKeyState(VK_DOWN) && GetAsyncKeyState(VK_RIGHT)){playerSpeedCol2 = player_speed;playerSpeedRow2 = player_speed;}//下左else if (GetAsyncKeyState(VK_DOWN) && GetAsyncKeyState(VK_LEFT)){playerSpeedCol2 = player_speed;playerSpeedRow2 = -player_speed;}//左else if (GetAsyncKeyState(VK_LEFT)){playerSpeedRow2 = -player_speed;playerSpeedCol2 = 0;}//下else if (GetAsyncKeyState(VK_DOWN)){playerSpeedCol2 = player_speed;playerSpeedRow2 = 0;}//右else if (GetAsyncKeyState(VK_RIGHT)){playerSpeedRow2 = player_speed;playerSpeedCol2 = 0;}//上else if (GetAsyncKeyState(VK_UP)){playerSpeedCol2 = -player_speed;playerSpeedRow2 = 0;}//加速if (GetAsyncKeyState(0x4D)){if (playerSpeedRow2 > 0)playerSpeedRow2 = player_speed + 5;if (playerSpeedCol2 > 0)playerSpeedCol2 = player_speed + 5;if (playerSpeedRow2 < 0)playerSpeedRow2 = -player_speed - 5;if (playerSpeedCol2 < 0)playerSpeedCol2 = -player_speed - 5;}else{if (playerSpeedRow2 > 0)playerSpeedRow2 = player_speed;if (playerSpeedCol2 > 0)playerSpeedCol2 = player_speed;if (playerSpeedRow2 < 0)playerSpeedRow2 = -player_speed;if (playerSpeedCol2 < 0)playerSpeedCol2 = -player_speed;}//尾部处理int m2 = player2.x;int n2 = player2.y;player2.x += playerSpeedRow2;player2.y += playerSpeedCol2;int x2 = player_body2[0].x;int y2 = player_body2[0].y;player_body2[0].x = m2;player_body2[0].y = n2;for (int i = 1; i < body_num2; i++){int a, b;if (i % 2 == 1){a = player_body2[i].x;b = player_body2[i].y;player_body2[i].x = x2;player_body2[i].y = y2;}else{x2 = player_body2[i].x;y2 = player_body2[i].y;player_body2[i].x = a;player_body2[i].y = b;}}
}//ai移动
void Ai_move()
{srand((unsigned)time(NULL));int count[Ai_num] = { 0 };for (int i = 0; i < Ai_num; i++){//随机移动count[i] = rand() % 8;//蛇头移动//上左if (count[i] == 0){AiSpeedCol[i] = -player_speed;AiSpeedRow[i] = -player_speed;}//上右else if (count[i] == 1){AiSpeedCol[i] = -player_speed;AiSpeedRow[i] = player_speed;}//下右else if (count[i] == 2){AiSpeedCol[i] = player_speed;AiSpeedRow[i] = player_speed;}//下左else if (count[i] == 3){AiSpeedCol[i] = player_speed;AiSpeedRow[i] = -player_speed;}//左else if (count[i] == 4){AiSpeedRow[i] = -player_speed;AiSpeedCol[i] = 0;}//下else if (count[i] == 5){AiSpeedCol[i] = player_speed;AiSpeedRow[i] = 0;}//右else if (count[i] == 6){AiSpeedRow[i] = player_speed;AiSpeedCol[i] = 0;}//上else if (count[i] == 7){AiSpeedCol[i] = -player_speed;AiSpeedRow[i] = 0;}//ai不触碰边界if (Ai[i].x >= Wide_map - player_speed){//左AiSpeedRow[i] = -player_speed;}else if (Ai[i].y >= Hight_map - player_speed){//上AiSpeedCol[i] = -player_speed;}else if (Ai[i].y <= player_speed){//下AiSpeedCol[i] = player_speed;}else if (Ai[i].x <= player_speed){//右AiSpeedRow[i] = player_speed;}//ai躲避玩家1身体for (int j = 0; j < body_num; j++){if (Distance(player_body[j].x, player_body[j].y, Ai[i].x, Ai[i].y) < Ai[i].r + player_body[i].r + 20){//左if (Ai[i].x < player_body[j].x){AiSpeedRow[i] = -player_speed;}//上if (Ai[i].y < player_body[j].y){AiSpeedCol[i] = -player_speed;}//下if (Ai[i].x > player_body[j].x){AiSpeedCol[i] = player_speed;}//右if (Ai[i].y > player_body[j].y){AiSpeedRow[i] = player_speed;}}}//ai躲避玩家2身体for (int j = 0; j < body_num2; j++){if (Distance(player_body2[j].x, player_body2[j].y, Ai[i].x, Ai[i].y) < Ai[i].r + player_body2[i].r + 20){//左if (Ai[i].x < player_body2[j].x){AiSpeedRow[i] = -player_speed;}//上if (Ai[i].y < player_body2[j].y){AiSpeedCol[i] = -player_speed;}//下if (Ai[i].x > player_body2[j].x){AiSpeedCol[i] = player_speed;}//右if (Ai[i].y > player_body2[j].y){AiSpeedRow[i] = player_speed;}}}//尾部处理int m = Ai[i].x;int n = Ai[i].y;Ai[i].x += AiSpeedRow[i];Ai[i].y += AiSpeedCol[i];int x = Ai_body[i][0].x;int y = Ai_body[i][0].y;Ai_body[i][0].x = m;Ai_body[i][0].y = n;for (int j = 1; j < Ai_body_num[i]; j++){int a, b;if (j % 2 == 1){a = Ai_body[i][j].x;b = Ai_body[i][j].y;Ai_body[i][j].x = x;Ai_body[i][j].y = y;}else{x = Ai_body[i][j].x;y = Ai_body[i][j].y;Ai_body[i][j].x = a;Ai_body[i][j].y = b;}}}
}
void eatfood()
{srand((unsigned)time(NULL));for (int i = 0; i < food_num; i++){//玩家1吃食物if (Distance(food[i].x, food[i].y, player.x, player.y) < player.r + food[i].r + player_speed){score += 3;player.r += 0.01;player_body[0].r = player.r;for (int j = 1; j < body_num; j++){player_body[j].r = player_body[j - 1].r;}food[i].x = rand() % Wide_map;food[i].y = rand() % Hight_map;food[i].r = 5;body_num += 1;player_body[body_num - 1].x = player_body[body_num - 2].x - player_body[body_num - 2].r;player_body[body_num - 1].y = player_body[body_num - 2].y;player_body[body_num - 1].r = player_body[body_num - 2].r;}//玩家2吃食物if (Distance(food[i].x, food[i].y, player2.x, player2.y) < player2.r + food[i].r + player_speed){score2 += 3;player2.r += 0.01;player_body2[0].r = player2.r;for (int j = 1; j < body_num2; j++){player_body2[j].r = player_body2[j - 1].r;}food[i].x = rand() % Wide_map;food[i].y = rand() % Hight_map;food[i].r = 5;body_num2 += 1;player_body2[body_num2 - 1].x = player_body2[body_num2 - 2].x - player_body2[body_num2 - 2].r;player_body2[body_num2 - 1].y = player_body2[body_num2 - 2].y;player_body2[body_num2 - 1].r = player_body2[body_num2 - 2].r;}//ai吃食物for (int j = 0; j < Ai_num; j++){if (Distance(food[i].x, food[i].y, Ai[j].x, Ai[j].y) <= Ai[i].r + food[i].r + player_speed * 3){Ai[j].r += 0.01;Ai_body[j][0].r = Ai[j].r;for (int z = 1; z < Ai_body_num[j]; z++){Ai_body[j][z].r = Ai_body[j][z - 1].r;}food[i].x = rand() % Wide_map;food[i].y = rand() % Hight_map;food[i].r = 5;food[i].color = RGB(rand() % 256, rand() % 256, rand() % 256);Ai_body_num[j] += 1;Ai_body[j][Ai_body_num[j] - 1].x = Ai_body[j][Ai_body_num[j] - 2].x - Ai_body[j][Ai_body_num[j] - 2].r;Ai_body[j][Ai_body_num[j] - 1].y = Ai_body[j][Ai_body_num[j] - 2].y;Ai_body[j][Ai_body_num[j] - 1].r = Ai_body[j][Ai_body_num[j] - 2].r;}}}for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_food_num[i]; j++){//玩家1吃尸体if (Distance(Ai_body_food[i][j].x, Ai_body_food[i][j].y, player.x, player.y)< player.r + Ai_body_food[i][j].r + player_speed){int v = rand() % food_num;score += Ai_body_food[i][j].r / 5 * 3;player.r += Ai_body_food[i][j].r / 5 * 0.01;player_body[0].r = player.r;for (int z = 1; z < body_num; z++){player_body[z].r = player_body[z - 1].r;}Ai_body_food[i][j].x = food[v].x;Ai_body_food[i][j].y = food[v].y;Ai_body_food[i][j].r = food[v].r;Ai_body_food[i][j].color = food[v].color;body_num += Ai_body_food[i][j].r / 5;player_body[body_num - 1].x = player_body[body_num - 2].x - player_body[body_num - 2].r;player_body[body_num - 1].y = player_body[body_num - 2].y;player_body[body_num - 1].r = player_body[body_num - 2].r;}//玩家2吃尸体if (Distance(Ai_body_food[i][j].x, Ai_body_food[i][j].y, player2.x, player2.y)< player2.r + Ai_body_food[i][j].r + player_speed){int v = rand() % food_num;score2 += Ai_body_food[i][j].r / 5 * 3;player2.r += Ai_body_food[i][j].r / 5 * 0.01;player_body2[0].r = player2.r;for (int z = 1; z < body_num2; z++){player_body2[z].r = player_body2[z - 1].r;}Ai_body_food[i][j].x = food[v].x;Ai_body_food[i][j].y = food[v].y;Ai_body_food[i][j].r = food[v].r;Ai_body_food[i][j].color = food[v].color;body_num2 += Ai_body_food[i][j].r / 5;player_body2[body_num2 - 1].x = player_body2[body_num2 - 2].x - player_body2[body_num2 - 2].r;player_body2[body_num2 - 1].y = player_body2[body_num2 - 2].y;player_body2[body_num2 - 1].r = player_body2[body_num2 - 2].r;}}}//ai吃尸体for (int p = 0; p < Ai_num; p++){for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_food_num[i]; j++){if (Distance(Ai_body_food[i][j].x, Ai_body_food[i][j].y, Ai[p].x, Ai[p].y) <Ai[p].r + Ai_body_food[i][j].r + player_speed){int v = rand() % food_num;Ai[p].r += Ai_body_food[i][j].r / 5 * 0.01;Ai_body[p][0].r = Ai[p].r;for (int z = 1; z < Ai_body_num[p]; z++){Ai_body[p][z].r = Ai_body[p][z - 1].r;}Ai_body_food[i][j].x = food[v].x;Ai_body_food[i][j].y = food[v].y;Ai_body_food[i][j].r = food[v].r;Ai_body_food[i][j].color = food[v].color;Ai_body_num[p] += Ai_body_food[i][j].r / 5;Ai_body[p][Ai_body_num[p] - 1].x = Ai_body[p][Ai_body_num[p] - 2].x - Ai_body[p][Ai_body_num[p] - 2].r;Ai_body[p][Ai_body_num[p] - 1].y = Ai_body[p][Ai_body_num[p] - 2].y;Ai_body[p][Ai_body_num[p] - 1].r = Ai_body[p][Ai_body_num[p] - 2].r;}}}}
}
void SnakeOut()
{//玩家1碰到边界if (player.x > Wide_map || player.x <0 || player.y >Hight_map || player.y < 0){body_num = 5;score = 100;kill = 0;//蛇player.x = Wide / 2;player.y = Hight / 2;player.r = 10;//蛇身player_body[0].x = player.x - player.r;player_body[0].y = player.y;player_body[0].r = player.r;for (int i = 1; i < body_num; i++){player_body[i].x = player_body[i - 1].x - player_body[i - 1].r;player_body[i].y = player_body[i - 1].y;player_body[i].r = player_body[i - 1].r;}}//玩家2碰到边界if (player2.x > Wide_map || player2.x <0 || player2.y >Hight_map || player2.y < 0){body_num2 = 5;score2 = 100;kill2 = 0;//蛇player2.x = Wide;player2.y = Hight / 2;player2.r = 10;//蛇身player_body2[0].x = player2.x - player2.r;player_body2[0].y = player2.y;player_body2[0].r = player2.r;for (int i = 1; i < body_num2; i++){player_body2[i].x = player_body2[i - 1].x - player_body2[i - 1].r;player_body2[i].y = player_body2[i - 1].y;player_body2[i].r = player_body2[i - 1].r;}}//玩家1吃玩家2蛇尾for (int i = 0; i < body_num2; i++){if (Distance(player_body2[i].x, player_body2[i].y, player.x, player.y) < player_body[i].r + player.r ){kill2 += 1;body_num = 5;score = 100;kill = 0;//蛇player.x = Wide / 2;player.y = Hight / 2;player.r = 10;//蛇身player_body[0].x = player.x - player.r;player_body[0].y = player.y;player_body[0].r = player.r;for (int i = 1; i < body_num; i++){player_body[i].x = player_body[i - 1].x - player_body[i - 1].r;player_body[i].y = player_body[i - 1].y;player_body[i].r = player_body[i - 1].r;}}}//玩家2吃玩家1蛇尾for (int i = 0; i < body_num; i++){if (Distance(player_body[i].x, player_body[i].y, player2.x, player2.y) < player_body[i].r + player2.r){kill += 1;body_num2 = 5;score2 = 100;kill2 = 0;//蛇player2.x = Wide;player2.y = Hight / 2;player2.r = 10;//蛇身player_body2[0].x = player2.x - player2.r;player_body2[0].y = player2.y;player_body2[0].r = player2.r;for (int i = 1; i < body_num2; i++){player_body2[i].x = player_body2[i - 1].x - player_body2[i - 1].r;player_body2[i].y = player_body2[i - 1].y;player_body2[i].r = player_body2[i - 1].r;}}}for (int i = 0; i < Ai_num; i++){//ai碰到边界if (Ai[i].x > Wide_map || Ai[i].x <0 || Ai[i].y >Hight_map || Ai[i].y < 0){//身体变成食物Ai_body_food_num[i] = Ai_body_num[i];for (int z = 1; z < Ai_body_num[i]; z++){Ai_body_food[i][z].x = Ai_body[i][z].x;Ai_body_food[i][z].y = Ai_body[i][z].y;Ai_body_food[i][z].r = Ai_body[i][z].r;Ai_body_food[i][z].color = RGB(rand() % 256, rand() % 256, rand() % 256);}Ai[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;//ai身体Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int j = 1; j < Ai_body_num[i]; j++){Ai_body[i][j].x = Ai_body[i][j - 1].x - Ai_body[i][j - 1].r;Ai_body[i][j].y = Ai_body[i][j - 1].y;Ai_body[i][j].r = Ai_body[i][j - 1].r;}}//ai碰玩家1蛇尾for (int j = 0; j < body_num; j++){if (Distance(player_body[j].x, player_body[j].y, Ai[i].x, Ai[i].y) < Ai[i].r + player_body[i].r){kill += 1;//尾部变成食物Ai_body_food_num[i] = Ai_body_num[i];for (int z = 1; z < Ai_body_num[i]; z++){Ai_body_food[i][z].x = Ai_body[i][z].x;Ai_body_food[i][z].y = Ai_body[i][z].y;Ai_body_food[i][z].r = Ai_body[i][z].r;Ai_body_food[i][z].color = RGB(rand() % 256, rand() % 256, rand() % 256);}//重新生成aiAi[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;//ai身体Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int z = 1; z < Ai_body_num[i]; z++){Ai_body[i][z].x = Ai_body[i][z - 1].x - Ai_body[i][z - 1].r;Ai_body[i][z].y = Ai_body[i][z - 1].y;Ai_body[i][z].r = Ai_body[i][z - 1].r;}}}//ai碰玩家2蛇尾for (int j = 0; j < body_num2; j++){if (Distance(player_body2[j].x, player_body2[j].y, Ai[i].x, Ai[i].y) < Ai[i].r + player_body2[i].r)	{kill2 += 1;//尾部变成食物Ai_body_food_num[i] = Ai_body_num[i];for (int z = 1; z < Ai_body_num[i]; z++){Ai_body_food[i][z].x = Ai_body[i][z].x;Ai_body_food[i][z].y = Ai_body[i][z].y;Ai_body_food[i][z].r = Ai_body[i][z].r;Ai_body_food[i][z].color = RGB(rand() % 256, rand() % 256, rand() % 256);}//重新生成aiAi[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;//ai身体Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int z = 1; z < Ai_body_num[i]; z++){Ai_body[i][z].x = Ai_body[i][z - 1].x - Ai_body[i][z - 1].r;Ai_body[i][z].y = Ai_body[i][z - 1].y;Ai_body[i][z].r = Ai_body[i][z - 1].r;}}}//玩家1碰ai蛇尾for (int j = 0; j < Ai_body_num[i]; j++){if (Distance(Ai_body[i][j].x, Ai_body[i][j].y, player.x, player.y) < player.r + Ai_body[i][j].r){body_num = 5;score = 100;kill = 0;//蛇player.x = Wide / 2;player.y = Hight / 2;player.r = 10;//蛇身player_body[0].x = player.x - player.r;player_body[0].y = player.y;player_body[0].r = player.r;for (int i = 1; i < body_num; i++){player_body[i].x = player_body[i - 1].x - player_body[i - 1].r;player_body[i].y = player_body[i - 1].y;player_body[i].r = player_body[i - 1].r;}}}//玩家2碰ai蛇尾for (int j = 0; j < Ai_body_num[i]; j++){if (Distance(Ai_body[i][j].x, Ai_body[i][j].y, player2.x, player2.y) < player2.r + Ai_body[i][j].r){body_num2 = 5;score2 = 100;kill2 = 0;//蛇player2.x = Wide / 2;player2.y = Hight / 2;player2.r = 10;//蛇身player_body2[0].x = player2.x - player2.r;player_body2[0].y = player2.y;player_body2[0].r = player2.r;for (int i = 1; i < body_num2; i++){player_body2[i].x = player_body2[i - 1].x - player_body2[i - 1].r;player_body2[i].y = player_body2[i - 1].y;player_body2[i].r = player_body2[i - 1].r;}}}//ai碰ai/*	for (int p = 0; p < Ai_num; p++){for (int j = 0; j < Ai_body_num[i]; j++){if (Distance(Ai_body[p][j].x, Ai_body[p][j].y, Ai[i].x, Ai[i].y) < Ai[i].r + Ai_body[p][j].r && i != p){//尾部变成食物Ai_body_food_num[i] = Ai_body_num[p];for (int z = 1; z < Ai_body_num[i]; z++){Ai_body_food[i][z].x = Ai_body[i][z].x;Ai_body_food[i][z].y = Ai_body[i][z].y;Ai_body_food[i][z].r = Ai_body[i][z].r;Ai_body_food[i][z].color = RGB(rand() % 256, rand() % 256, rand() % 256);}//重新生成aiAi[i].x = rand() % Wide_map;Ai[i].y = rand() % Hight_map;Ai[i].r = 10;//ai身体Ai_body_num[i] = 5;Ai_body[i][0].x = Ai[i].x - Ai[i].r;Ai_body[i][0].y = Ai[i].y;Ai_body[i][0].r = Ai[i].r;for (int z = 1; z < Ai_body_num[i]; z++){Ai_body[i][z].x = Ai_body[i][z - 1].x - Ai_body[i][z - 1].r;Ai_body[i][z].y = Ai_body[i][z - 1].y;Ai_body[i][z].r = Ai_body[i][z - 1].r;}}}}*/}
}void show()
{srand((unsigned)time(NULL));SetWorkingImage(&map);cleardevice();setbkcolor(RGB(236, 236, 244));//划线颜色setlinecolor(RGB(222, 222, 230));//划线for (int i = 0; i < Wide_map; i += 20){line(i, 0, i, Hight_map);}for (int i = 0; i < Hight_map; i += 20){line(0, i, Wide_map, i);}//食物for (int i = 0; i < food_num; i++){setfillcolor(food[i].color );solidcircle(food[i].x, food[i].y, food[i].r);}//玩家1——蛇头setfillcolor(RED);solidcircle(player.x, player.y, player.r);//玩家1——蛇身for (int i = 0; i < body_num; i++){setfillcolor(RGB(149, 236, 105));solidcircle(player_body[i].x, player_body[i].y, player_body[i].r);}//玩家2——蛇头setfillcolor(RGB(221, 221, 2));solidcircle(player2.x, player2.y, player2.r);//玩家2——蛇身for (int i = 0; i < body_num2; i++){setfillcolor(RGB(149, 236, 105));solidcircle(player_body2[i].x, player_body2[i].y, player_body2[i].r);}//ai蛇头for (int i = 0; i < Ai_num; i++){setfillcolor(RGB(229, 0, 0));solidcircle(Ai[i].x, Ai[i].y, Ai[i].r);}//ai蛇身for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_num[i]; j++){setfillcolor(RGB(229, 196, 0));solidcircle(Ai_body[i][j].x, Ai_body[i][j].y, Ai_body[i][j].r);}}//蛇尸体for (int i = 0; i < Ai_num; i++){for (int j = 0; j < Ai_body_food_num[i]; j++){setfillcolor(Ai_body_food[i][j].color );solidcircle(Ai_body_food[i][j].x, Ai_body_food[i][j].y, Ai_body_food[i][j].r);}}//玩家1视角int x = player.x - (Wide / 2) ;int y = player.y - (Hight / 2);//防止窗口越界if (x < -Wide / 4){x = -Wide / 4;}if (y < 0){y = 0;}if (x > Wide_map - Wide){x = Wide_map - Wide;}if (y > Hight_map - Hight){y = Hight_map - Hight;}//玩家2视角int x2 = player2.x - (Wide / 2);int y2 = player2.y - (Hight / 2);//防止窗口越界if (x2 < -Wide / 4){x2 = -Wide / 4;}if (y2 < 0){y2 = 0;}if (x2 > Wide_map - Wide){x2 = Wide_map - Wide;}if (y2 > Hight_map - Hight){y2 = Hight_map - Hight;}settextcolor(RGB(7, 19, 62));TCHAR buffer[50];TCHAR buffer1[50];swprintf_s(buffer, _T("%d"), score);swprintf_s(buffer1, _T("%d"), kill);setbkmode(TRANSPARENT);settextstyle(20, 0, _T("宋体"));outtextxy(player.x, player.y - player.r * 4 - 20, _T("长度:"));outtextxy(player.x + 50, player.y - player.r * 4 - 20, buffer);outtextxy(player.x, player.y - player.r * 4, _T("击杀:"));outtextxy(player.x + 50, player.y - player.r * 4, buffer1);TCHAR buffer2[50];TCHAR buffer3[50];swprintf_s(buffer2, _T("%d"), score2);swprintf_s(buffer3, _T("%d"), kill2);outtextxy(player2.x, player2.y - player2.r * 4 - 20, _T("长度:"));outtextxy(player2.x + 50, player2.y - player2.r * 4 - 20, buffer2);outtextxy(player2.x, player2.y - player2.r * 4, _T("击杀:"));outtextxy(player2.x + 50, player2.y - player2.r * 4, buffer3);SetWorkingImage();//把map输出到窗口上putimage(0, 0, Wide / 2, Hight, &map, x + Wide / 4, y);putimage(Wide/2, 0, Wide/2, Hight, &map, x2 + Wide / 4, y2);
}int main()
{init();initgraph(Wide, Hight);BeginBatchDraw();while (1){Sleep(10);show();Player_move1();eatfood();SnakeOut();Ai_move();FlushBatchDraw();}closegraph();}

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