#include<graphics.h> //需要提前下載EasyX庫哦
#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
#include<conio.h>
#include<math.h>

#define High 480
#define Width 640//畫布尺寸
#define PI 3.1415
/*
實(shí)現(xiàn)秒針的轉(zhuǎn)動(dòng)。定義secondAngle為秒針對應(yīng)的角度，利用三角幾何知識求出秒針的終點(diǎn)坐標(biāo):。

?? ?secondEnd_ x= center_ x + secondLength * sin(secondAngle);
?? ?secondEnd_ y= center_ y - secondLength * cos(secondAngle);

?? ?讓角度secondAngle循環(huán)變化，即實(shí)現(xiàn)了秒針轉(zhuǎn)動(dòng)的動(dòng)畫效果。
*/

void HideCursor(){?? ?//隱藏光標(biāo)位置 ,這個(gè)函數(shù)復(fù)制代碼就行?
?? ?CONSOLE_CURSOR_INFO cursor_info={1,0};?
?? ?SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE),&cursor_info);
}

int IsEnd;//是否結(jié)束?
int center_x,center_y;//中點(diǎn)
int second_long;//長度
int second_x,second_y;//秒針位置
int minute_long;//長度
int minute_x,minute_y;//分針位置
int hour_long;//長度
int hour_x,hour_y;//時(shí)針位置
int second_num,minute_num,hour_num;//秒針分針時(shí)針計(jì)數(shù)用的

void startup(){?? ?//【數(shù)據(jù)初始化】?
?? ?
?? ?HideCursor();//不顯示光標(biāo)?
?? ?IsEnd = 0;?? ?
?? ?initgraph(Width,High);//展示畫布

?? ?center_x=Width/2;
?? ?center_y=High/2;//中心點(diǎn)信息

?? ?second_long= (Width>High)? High/4:Width/4;
?? ?second_x=center_x;
?? ?second_y = center_y-second_long;//秒針信息

?? ?minute_long=second_long*4/5;
?? ?minute_x=center_x;
?? ?minute_y = center_y-minute_long;//分針信息

?? ?hour_long=second_long*2/3;
?? ?hour_x=center_x;
?? ?hour_y = center_y-hour_long;//時(shí)針信息
?? ?second_num=0;
?? ?minute_num=0;
?? ?hour_num=0;
?? ?
}
void show_begin(){//【初始頁面展示】?
?? ?BeginBatchDraw();//批量繪圖開始
}?
void show(){?? ?//【顯示畫面】?
?? ?int i;
?? ?
?? ?setlinestyle(PS_SOLID,2);//設(shè)置線型為實(shí)線，線寬為2
?? ?setcolor(DARKGRAY);//設(shè)置顏色為暗灰色
?? ?setfillcolor(DARKGRAY);//設(shè)置填充顏色也為暗灰色
?? ?fillcircle(center_x,center_y,second_long*5/4);//畫表盤外圓
?? ?setcolor(LIGHTGRAY);//設(shè)置顏色亮灰色
?? ?setfillcolor(LIGHTGRAY);//設(shè)置填充顏色為亮灰色
?? ?fillcircle(center_x,center_y,second_long*6/5);//填充表盤背景
?? ?for(i=0;i<=59;i++){//畫表盤上的刻度
?? ??? ?setcolor(BLACK);
?? ??? ?if(i%5==0){//每個(gè)小時(shí)點(diǎn)線長更長
?? ??? ??? ?line(
?? ??? ??? ?(center_x+second_long*15/14*sin(((2*PI)/60)*i)),
?? ??? ??? ?(center_y-second_long*15/14*cos(((2*PI)/60)*i)),
?? ??? ??? ?(center_x+second_long*6/5*sin(((2*PI)/60)*i)),
?? ??? ??? ?(center_y-second_long*6/5*cos(((2*PI)/60)*i))
?? ??? ??? ?);
?? ??? ?}else line(
?? ??? ??? ?(center_x+second_long*8/7*sin(((2*PI)/60)*i)),
?? ??? ??? ?(center_y-second_long*8/7*cos(((2*PI)/60)*i)),
?? ??? ??? ?(center_x+second_long*6/5*sin(((2*PI)/60)*i)),
?? ??? ??? ?(center_y-second_long*6/5*cos(((2*PI)/60)*i))
?? ??? ??? ?);
?? ?}


?? ?setlinecolor(YELLOW);//設(shè)置線條顏色黃色
?? ?setlinestyle(PS_SOLID,3);//設(shè)置線條風(fēng)格為實(shí)線，線寬為3
?? ?line(center_x,center_y,second_x,second_y);//畫秒針
?? ?setlinecolor(BLUE);//設(shè)置顏色
?? ?setlinestyle(PS_SOLID,4);//設(shè)置線條風(fēng)格實(shí)線，線寬為4
?? ?line(center_x,center_y,minute_x,minute_y);//畫分針
?? ?setlinecolor(RED);//設(shè)置顏色
?? ?setlinestyle(PS_SOLID,6);//設(shè)置線條風(fēng)格實(shí)線，線寬3
?? ?line(center_x,center_y,hour_x,hour_y);//畫時(shí)針


?? ?FlushBatchDraw();//更新一次畫面，解決畫面閃的問題，需要配合BeginBatchDraw函數(shù)使用
?? ?Sleep(1000);//延時(shí)
?? ?cleardevice();//清除之前的畫跡
?? ?
?? ?
}
void update_outinput(){?? ?//【與輸入無關(guān)的更新】?
?? ?
?? ?second_num = (second_num==59)? 0:second_num+1;//秒針為59下一次是0
?? ?second_x=center_x+second_long*sin(((2*PI)/60)*second_num);//計(jì)算秒針端點(diǎn)位置
?? ?second_y=center_y-second_long*cos(((2*PI)/60)*second_num);
?? ?if(second_num==0){//如果秒針到0了分針加一
?? ??? ?minute_num = (minute_num==59)? 0:minute_num+1;//分針為59下一次是0
?? ??? ?minute_x=center_x+minute_long*sin(((2*PI)/60)*minute_num);//計(jì)算分針端點(diǎn)位置
?? ??? ?minute_y=center_y-minute_long*cos(((2*PI)/60)*minute_num);
?? ?}
?? ?if(minute_num%12==0&&second_num==0){//如果分針到0了且秒針也為0時(shí)，時(shí)針加1
?? ??? ?hour_num = (hour_num==59)? 0:hour_num+1;//時(shí)針為59下一次是0
?? ??? ?hour_x=center_x+hour_long*sin(((2*PI)/60)*hour_num);//計(jì)算時(shí)針端點(diǎn)位置
?? ??? ?hour_y=center_y-hour_long*cos(((2*PI)/60)*hour_num);
?? ?}
?? ?
}
void update_input(){//【與輸入有關(guān)的更新】?
?? ?char input;
?? ?if(kbhit()){
?? ??? ?input = getch();
?? ??? ??? ??? ?
?? ?}
}
void show_end(){//【顯示失敗界面】?
?? ?EndBatchDraw();
}

int main(){
?? ?startup();?? ?//數(shù)據(jù)初始化
?? ?show_begin();//初始頁面?
?? ?while(!IsEnd){?? ?//游戲循環(huán)執(zhí)行?
?? ??? ?show();?? ?// 顯示畫面?
?? ??? ?update_outinput();?? ?//與輸入無關(guān)的更新?
?? ??? ?update_input();?? ?//與輸入有關(guān)的更新?
?? ?}
?? ?show_end(); //顯示失敗界面?
?? ?return 0;
}