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7d9e4d492c
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8581c61bca
@ -1,271 +0,0 @@
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#include<iostream>
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using namespace std;
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#include<easyx.h> //包含图形库头文件
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#include<stdlib.h>
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#include<time.h>
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#define WIDTH 1040 //定义场景大小
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#define HEIGHT 640
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#define SIZE 20 //定义食物以及蛇的大小
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#define UP 1 //定义蛇的朝向
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#define DOWN -1
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#define LEFT 2
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#define RIGHT -2
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#define MAX 2000 //蛇的最大长度
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typedef struct
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{
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int x;
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int y;
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}SnakeNode;
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SnakeNode temp[MAX]; //用另外一个数组来存储蛇原来的位置
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int speed = 150; //蛇的速度
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//创建蛇的类
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class Snake
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{
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friend class Food;
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public:
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Snake(); //初始化
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void Move(); //移动
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void Draw(); //绘制蛇
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bool Eat(Food food); //吃食物
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bool Defeat(); //失败判定
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private:
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int dirt; //朝向
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int length; //长度
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SnakeNode node[MAX]; //蛇的结点
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};
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//创建食物的类
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class Food
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{
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friend class Snake;
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public:
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Food(Snake snake); //食物初始化
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void Draw(); //绘制食物
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private:
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int x, y; //坐标
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int score; //分数
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};
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int main()
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{
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initgraph(WIDTH, HEIGHT);
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Snake snake;
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table:
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Food food(snake);
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while (1)
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{
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BeginBatchDraw();
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FlushBatchDraw();
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snake.Draw();
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food.Draw();
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FlushBatchDraw();
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EndBatchDraw();
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if (snake.Eat(food)) {
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goto table;
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}
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if (snake.Defeat()) {
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break;
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}
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snake.Move();
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}
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HWND window = GetHWnd();
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SetWindowText(window, L"提示"); //提示失败信息
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MessageBox(window, L"游戏失败", L"提示", MB_OKCANCEL);
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return 0;
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}
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//蛇的初始化
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Snake::Snake()
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{
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this->dirt = RIGHT;
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this->length = 3;
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//下标是0的位置为蛇的头部
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for (int i = 0; i < length; i++)
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{
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this->node[i].x = 60 - ((i + 1) * SIZE);
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this->node[i].y = 0;
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}
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}
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//移动
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void Snake::Move()
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{
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for (int i = 0; i < this->length; i++) //将原来的蛇结点拷贝一份
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{
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temp[i].x = this->node[i].x;
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temp[i].y = this->node[i].y;
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}
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int status = 0; //用来判断是否点击了转向按键
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if (this->dirt == RIGHT)
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{
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//判断是否转向
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if (GetAsyncKeyState('W') && status == 0)
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{
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this->dirt = UP;
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status = 1;
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}
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else if (GetAsyncKeyState('S') && status == 0)
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{
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this->dirt = DOWN;
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status = 1;
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}
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else
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{
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this->node[0].x = this->node[0].x + SIZE;
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}
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}
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if (this->dirt == DOWN)
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{
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//判断是否转向
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if (GetAsyncKeyState('A') && status == 0)
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{
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this->dirt = LEFT;
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status = 1;
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}
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else if (GetAsyncKeyState('D') && status == 0)
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{
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this->node[0].x = this->node[0].x + SIZE;
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this->dirt = RIGHT;
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status = 1;
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}
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else
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{
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this->node[0].y = this->node[0].y + SIZE;
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}
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}
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if (this->dirt == LEFT)
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{
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//判断是否转向
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if (GetAsyncKeyState('W') && status == 0)
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{
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this->dirt = UP;
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status = 1;
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}
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else if (GetAsyncKeyState('S') && status == 0)
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{
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this->node[0].y = this->node[0].y + SIZE;
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this->dirt = DOWN;
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status = 1;
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}
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else
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{
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this->node[0].x -= SIZE;
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}
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}
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if (this->dirt == UP)
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{
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//判断是否转向
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if (GetAsyncKeyState('A') && status == 0)
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{
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this->node[0].x = this->node[0].x - SIZE;
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this->dirt = LEFT;
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status = 1;
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}
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else if (GetAsyncKeyState('D') && status == 0)
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{
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this->node[0].x = this->node[0].x + SIZE;
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this->dirt = RIGHT;
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status = 1;
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}
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else
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{
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this->node[0].y = this->node[0].y - SIZE;
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}
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}
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//移动
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for (int i = 1; i < this->length; i++)
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{
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this->node[i].x = temp[i - 1].x;
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this->node[i].y = temp[i - 1].y;
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}
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Sleep(speed);
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}
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//绘制蛇
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void Snake::Draw()
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{
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cleardevice(); //清空原先的绘图
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srand((unsigned)time(NULL)); //设置随机数
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for (int i = 0; i < this->length; i++)
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{
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setfillcolor(RGB(rand() % 256, rand() % 256, rand() % 256));
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fillrectangle(this->node[i].x, this->node[i].y, this->node[i].x + SIZE, this->node[i].y + SIZE);
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}
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}
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//吃食物
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bool Snake::Eat(Food food)
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{
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if (food.x == this->node[0].x && food.y == this->node[0].y)
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{
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if (this->node[length - 1].x - this->node[length - 2].x == 0 && this->node[length - 1].y - this->node[length - 2].y == -20)
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{
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this->length++;
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this->node[length - 1].x = this->node[length - 2].x;
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this->node[length - 1].y = this->node[length - 2].y - SIZE;
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}
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if (this->node[length - 1].x - this->node[length - 2].x == 0 && this->node[length - 1].y - this->node[length - 2].y == 20)
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{
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this->length++;
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this->node[length - 1].x = this->node[length - 2].x;
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this->node[length - 1].y = this->node[length - 2].y + SIZE;
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}
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if (this->node[length - 1].x - this->node[length - 2].x == 20 && this->node[length - 1].y - this->node[length - 2].y == 0)
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{
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this->length++;
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this->node[length - 1].x = this->node[length - 2].x + SIZE;
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this->node[length - 1].y = this->node[length - 2].y;
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}
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if (this->node[length - 1].x - this->node[length - 2].x == -20 && this->node[length - 1].y - this->node[length - 2].y == 0)
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{
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this->length++;
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this->node[length - 1].x = this->node[length - 2].x - SIZE;
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this->node[length - 1].y = this->node[length - 2].y;
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}
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return true;
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}
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return false;
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}
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//失败判定
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bool Snake::Defeat()
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{
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//碰到边界
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if (this->node[0].x < 0 || this->node[0].x >= WIDTH || this->node[0].y < 0 || this->node[0].y >= HEIGHT)
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return true;
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//碰到自己的身体
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for (int i = 1; i < this->length; i++)
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{
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if (this->node[0].x == this->node[i].x && this->node[0].y == this->node[i].y)
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return true;
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}
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return false;
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}
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//食物的初始化
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Food::Food(Snake snake)
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{
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table:
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srand((unsigned)time(NULL));
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this->x = (rand() % (WIDTH / SIZE)) * SIZE;
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this->y = (rand() % (HEIGHT / SIZE)) * SIZE;
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this->score = rand() % 10 + 1;
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for (int i = 0; i < snake.length; i++)
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{
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if (snake.node[i].x == this->x && snake.node[i].y == this->y)
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goto table;
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}
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}
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//绘制食物
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void Food::Draw()
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{
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setfillcolor(GREEN);
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fillrectangle(this->x, this->y, this->x + SIZE, this->y + SIZE);
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}
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