之前学了一点easyx图形库的使用,掌握一些基本用法后就用贪吃蛇来进行实战了,运行视频放在csdn视频那一栏了,之前的烟花也是。
#define _CRT_SECURE_NO_WARNINGS 1
#include<easyx.h>
#include<conio.h>
#include<time.h>
#include<stdlib.h>
#include<stdbool.h>
#define NODE_HIGHT 40
#define NODE_WIDTH 40
typedef enum direction
{
up,
down,
left,
right,
}direction;
typedef struct node
{
int x, y;
}node;
#include"snack.h"
void Paintgrid()
{
for (int x = 0; x < 800; x += NODE_WIDTH)
line(x, 0, x, 600);
for (int y = 0; y < 600; y += NODE_WIDTH)
line(0, y, 800, y);
}
void PaintSnack(node* nodes, int n)
{
int left, right, top, bottom;
for (int i = 0; i < n; i++)
{
left = nodes[i].x * NODE_WIDTH;
top = nodes[i].y * NODE_WIDTH;
right = (nodes[i].x + 1) * NODE_WIDTH;
bottom = (nodes[i].y + 1) * NODE_WIDTH;
solidrectangle(left, top, right, bottom);
}
}
node* SnackMove(node* nodes, int length, int direction)
{
node x = nodes[length - 1];
for (int i = length - 1; i > 0; i--)
{
nodes[i] = nodes[i - 1];
}
node new_head = nodes[0];
if (direction == up)
new_head.y--;
if (direction == down)
new_head.y++;
if (direction == left)
new_head.x--;
if (direction == right)
new_head.x++;
nodes[0] = new_head;
return &x;
}
void playerchoice(direction* dir)
{
if (_kbhit())
switch (_getch())
{
case 'A':
case'a':
if (*dir != left)
*dir = left;
break;
case 'd':
case'D':
if (*dir != right)
*dir = right;
break;
case 'w':
case'W':
if (*dir != up)
*dir = up;
break;
case 's':
case'S':
if (*dir != down)
*dir = down;
break;
}
}
void setfood(node* food,node*nodes,int length,int* flag)
{
srand((unsigned)time(NULL));
if (*flag == 0)
{
again:
food->x = rand() % (800 / NODE_WIDTH);
food->y = rand() % (600 / NODE_HIGHT);
for (int i = 0; i < length; i++)
{
if (food->x == nodes[i].x && food->y == nodes[i].y)
goto again;
}
*flag= 1;
}
setfillcolor(YELLOW);
solidrectangle(food->x * NODE_WIDTH, food->y * NODE_HIGHT, (food->x + 1) * NODE_WIDTH, (food->y + 1) * NODE_HIGHT);
setfillcolor(WHITE);
}
bool isover(node* nodes,int length)
{
if (nodes->x >= 800/NODE_WIDTH || nodes->x < 0 || nodes->y < 0 || nodes->y>=600/NODE_HIGHT)
return true;
for (int i = 1; i < length; i++)
if (nodes->x == nodes[i].x && nodes->y == nodes[i].y)
return true;
return FALSE;
}
void reset(node* nodes, int* length, direction* dir,int*flag)
{
nodes[0] = { 5,7 };
nodes[1] = { 4,7 };
nodes[2] = { 3,7 };
nodes[3] = {2,7};
nodes[4] = {1,7};
*length = 5;
*dir = right;
*flag = 0;
}
int main()
{
srand((unsigned)time(NULL));
initgraph(800, 600);
setbkcolor(RGB(164, 225, 202));
direction dir = right;
int length = 5;
node nodes[100] = { {5,7},{4,7},{3,7},{2,7},{1,7} };//从蛇头到蛇尾
node food = { 0 };
int flag = 0;
while (1)
{
cleardevice();
Paintgrid();//初始化表格
setfood(&food, nodes, length, &flag);
PaintSnack(nodes, length);
Sleep(500);
playerchoice(&dir);
node* end = SnackMove(nodes, length, dir);
if (nodes[0].x == food.x && food.y == nodes[0].y)
{
length++;
nodes[length - 1].x = end->x;
nodes[length - 1].y = end->y;
flag = 0;
}
if (isover(nodes, length))
{
reset(nodes, &length, &dir,&flag);
}
}
closegraph();
return 0;
}
我使用的是vs编译环境和easyx图形库,貌似easyx也支持Dev,具体的下载方法可以去吧站搜索,easyx的使用在吧站也有相关?教程,包括vs的下载都有很详细的视频教程,所以就不再赘述了。
我们由于要用到随机数所以使用了<time.h><stdlib.h>头文件
关于随机数的使用若是不了解可以看看这篇博客
C语言rand函数,srand函数,time函数实现随机数,及猜数字小游戏-CSDN博客
图形库的使用需要<easyx.h>头文件
第一行的宏定义想必用vs的都知道,用来避免报错的
两个结构体是用来记录蛇的移动方向和坐标的。
#define _CRT_SECURE_NO_WARNINGS 1
#include<easyx.h>
#include<conio.h>
#include<time.h>
#include<stdlib.h>
#include<stdbool.h>
#define NODE_HIGHT 40
#define NODE_WIDTH 40
typedef enum direction
{
?? ?up,
?? ?down,
?? ?left,
?? ?right,
}direction;
typedef struct node
{
?? ?int x, y;
}node;
我们只要知道以下几点就可以
void Paintgrid()
{
?? ?for (int x = 0; x < 800; x += NODE_WIDTH)
?? ??? ?line(x, 0, x, 600);
?? ?for (int y = 0; y < 600; y += NODE_WIDTH)
?? ??? ?line(0, y, 800, y);
}
void PaintSnack(node* nodes, int n)
{
?? ?int left, right, top, bottom;
?? ?for (int i = 0; i < n; i++)
?? ?{
?? ??? ?left = nodes[i].x * NODE_WIDTH;
?? ??? ?top = nodes[i].y * NODE_WIDTH;
?? ??? ?right = (nodes[i].x + 1) * NODE_WIDTH;
?? ??? ?bottom = (nodes[i].y + 1) * NODE_WIDTH;
?? ??? ?solidrectangle(left, top, right, bottom);
?? ?}
}
void setfood(node* food,node*nodes,int length,int* flag)
{
?? ?srand((unsigned)time(NULL));
?? ?if (*flag == 0)
?? ?{
?? ?again:
?? ??? ?food->x = rand() % (800 / NODE_WIDTH);
?? ??? ?food->y = rand() % (600 / NODE_HIGHT);
?? ??? ?for (int i = 0; i < length; i++)
?? ??? ?{
?? ??? ??? ?if (food->x == nodes[i].x && food->y == nodes[i].y)
?? ??? ??? ??? ?goto again;
?? ??? ?}
?? ??? ?*flag= 1;
?? ?}
?? ?setfillcolor(YELLOW);
?? ?solidrectangle(food->x * NODE_WIDTH, food->y * NODE_HIGHT, (food->x + 1) * NODE_WIDTH, (food->y + 1) * NODE_HIGHT);
?? ?setfillcolor(WHITE);
?}
node* SnackMove(node* nodes, int length, int direction)
{
?? ?node x = nodes[length - 1];
?? ?for (int i = length - 1; i > 0; i--)
?? ?{
?? ??? ?nodes[i] = nodes[i - 1];
?? ?}
?? ?node new_head = nodes[0];
?? ?if (direction == up)
?? ??? ?new_head.y--;
?? ?if (direction == down)
?? ??? ?new_head.y++;
?? ?if (direction == left)
?? ??? ?new_head.x--;
?? ?if (direction == right)
?? ??? ?new_head.x++;
?? ?nodes[0] = new_head;
?? ?return &x;
}
void playerchoice(direction* dir)
{
?? ?if (_kbhit())
?? ??? ?switch (_getch())
?? ??? ?{
?? ??? ?case 'A':
?? ??? ?case'a':
?? ??? ??? ?if (*dir != left)
?? ??? ??? ??? ?*dir = left;
?? ??? ??? ?break;
?? ??? ?case 'd':
?? ??? ?case'D':
?? ??? ??? ?if (*dir != right)
?? ??? ??? ??? ?*dir = right;
?? ??? ??? ?break;
?? ??? ?case 'w':
?? ??? ?case'W':
?? ??? ??? ?if (*dir != up)
?? ??? ??? ??? ?*dir = up;
?? ??? ??? ?break;
?? ??? ?case 's':
?? ??? ?case'S':
?? ??? ??? ?if (*dir != down)
?? ??? ??? ??? ?*dir = down;
?? ??? ??? ?break;
?? ??? ?}
}
//主函数中
?if (nodes[0].x == food.x && food.y == nodes[0].y)
?{
?? ? length++;
?? ? nodes[length - 1].x = end->x;
?? ? nodes[length - 1].y = end->y;
?? ? flag = 0;
?}
?bool isover(node* nodes,int length)
{
?? ? if (nodes->x >= 800/NODE_WIDTH || nodes->x < 0 || nodes->y < 0 || nodes->y>=600/NODE_HIGHT)
?? ??? ? return true;
?? ? for (int i = 1; i < length; i++)
?? ??? ? if (nodes->x == nodes[i].x && nodes->y == nodes[i].y)
?? ??? ??? ? return true;
?? ? return FALSE;
}//主函数中
?if (isover(nodes, length))
?{
?? ? reset(nodes, &length, &dir,&flag);
?}
?? ? srand((unsigned)time(NULL));
?? ? initgraph(800, 600);
?? ? setbkcolor(RGB(164, 225, 202));
?? ? direction dir = right;
?? ? int ?length = 5;
?? ? node nodes[100] = { {5,7},{4,7},{3,7},{2,7},{1,7} };//从蛇头到蛇尾
?? ? node food = { 0 };
?? ? int flag = 0;
?? ? while (1)
?? ? {
?? ??? ? cleardevice();
?? ??? ? Paintgrid();//初始化表格?? ??? ? setfood(&food, nodes, length, &flag);
?? ??? ? PaintSnack(nodes, length);
?? ??? ? Sleep(500);
?? ??? ? playerchoice(&dir);
?? ??? ? node* end = SnackMove(nodes, length, dir);
?? ??? ? if (nodes[0].x == food.x && food.y == nodes[0].y)
?? ??? ? {
?? ??? ??? ? length++;
?? ??? ??? ? nodes[length - 1].x = end->x;
?? ??? ??? ? nodes[length - 1].y = end->y;
?? ??? ??? ? flag = 0;
?? ??? ? }
?? ??? ? if (isover(nodes, length))
?? ??? ? {
?? ??? ??? ? reset(nodes, &length, &dir,&flag);
?? ??? ? }
?? ? }
?? ? closegraph();
一直想写个小游戏玩玩,现在也算是小小的玩了一把,可惜最近要复习,没有时间学图形库了,不然真希望继续做点东西。最后祝愿还没考的同学考出好成绩,考完的寒假快乐,工作的早点放假,
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