前言

看完一本c语言的书可以开始做一些小游戏来练练手，今天先安装下环境。

EasyX

下载

搜索官网，地址https://easyx.cn/

打开exe文件，直接点击安装就行了（前提是已经安装好vs），这个安装好方便啊，点击一下就装好了。

测试

创建一个项目，新建一个cpp文件，注意c文件不行会报错
代码我在网上随便找了一个做一下测试

#include <graphics.h>
#include <conio.h>
#include <math.h>
#define Width 640
#define Height 480
#define PI 3.14159
int main()
{
// 初始化绘图窗口
initgraph(640, 480, SHOWCONSOLE);
//秒针起始坐标
int center_x = Width / 2, center_y = Height / 2;
//秒针终点坐标
int secondEnd_x, secondEnd_y;
//分针终点坐标
int minuteEnd_x, minuteEnd_y;
//时针终点坐标
int hourEnd_x, hourEnd_y;
//秒针长度
int secondLength = Width / 4;
//分针长度
int minuteLength = Width / 5.5;
//时针长度
int hourLength = Width / 7;
//秒针对应转到角度
float secondAngle = 0;
//分针对应转到角度
float minuteAngle = 0;
//时针对应转到角度
float hourAngle = 0;
//定义变量存储系统时间
SYSTEMTIME ti;
BeginBatchDraw();
while (1)
{
setfillcolor(YELLOW);
setlinestyle(PS_DASHDOTDOT, 5);
setlinecolor(0x555555);
circle(center_x, center_y, secondLength + 30);
setcolor(0xAAAAAA);
setlinestyle(PS_DOT | PS_ENDCAP_SQUARE, 2);
circle(center_x, center_y, secondLength + 15);
for (int i = 0; i < 12; i++)
{
int x = center_x + cos(i * 30.0 / 360 * 2 * PI) * (secondLength + 15.0);
int y = center_y - sin(i * 30.0 / 360 * 2 * PI) * (secondLength + 15.0);
fillcircle(x, y, 5);
}
GetLocalTime(&ti);
secondAngle = (ti.wSecond / 60.0) * (2 * PI);
minuteAngle = (ti.wMinute / 60.0) * (2 * PI);
hourAngle = ((ti.wHour % 12) / 12.0) * (2 * PI) + (ti.wMinute / 60.0) * (2 * PI / 12.0);
secondEnd_x = center_x + secondLength * sin(secondAngle);
secondEnd_y = center_y - secondLength * cos(secondAngle);
minuteEnd_x = center_x + minuteLength * sin(minuteAngle);
minuteEnd_y = center_y - minuteLength * cos(minuteAngle);
hourEnd_x = center_x + hourLength * sin(hourAngle);
hourEnd_y = center_y - hourLength * cos(hourAngle);
//画秒针
setlinestyle(PS_SOLID, 1);
setcolor(WHITE);
line(center_x, center_y, secondEnd_x, secondEnd_y);
//画分针
setlinestyle(PS_SOLID, 2);
setcolor(GREEN);
line(center_x, center_y, minuteEnd_x, minuteEnd_y);
//画时针
setlinestyle(PS_SOLID, 5);
setcolor(RED);
line(center_x, center_y, hourEnd_x, hourEnd_y);
FlushBatchDraw();
setlinestyle(PS_SOLID, 1);
setcolor(BLACK);
line(center_x, center_y, secondEnd_x, secondEnd_y);
setlinestyle(PS_SOLID, 2);
setcolor(BLACK);
line(center_x, center_y, minuteEnd_x, minuteEnd_y);
setlinestyle(PS_SOLID, 5);
setcolor(BLACK);
line(center_x, center_y, hourEnd_x, hourEnd_y);
}
EndBatchDraw();
system("pause");
closegraph();
return 0;
}

结果如下

总结

之后会结合c语言和EasyX学习一些小游戏。

最后

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