Analog Clock With Pendulum

#include
#include
#include
#include
#include
# define round(a)((int)(a+0.5))
# define pi 3.142857
int psang;
void parcir(int xc,int yc,float r,int col)
{ int k=0; float x,y;
for(k=0;k<360;k++)
{ x=xc+r*cos(pi*k/180);
y=yc+r*sin(pi*k/180);
putpixel(round(x),round(y),col);
// delay(10);
}
}
//++++++++++++++++++++++++++++++++++++++++++

void ddaline(int x1,int y1,int x2,int y2,int col)
{ int steps,dx,dy,i;float xinc,yinc,x,y;
dx=x2-x1;
dy=y2-y1;
if(abs(dx)>abs(dy))
steps=abs(dx);
else
steps=abs(dy);
xinc=(float)dx/steps;
yinc=(float)dy/steps;
x=x1;y=y1;
putpixel(x,y,col);
for(i=0;i {
x=x+xinc;
y=y+yinc;
putpixel(round(x),round(y),col);
}
}
//++++++++++++++++++
void drawclock()
{
setcolor(WHITE);
circle(200,200,70);
setcolor(CYAN);
circle(200,200,72);
setcolor(13);
outtextxy(190,135,"12");
outtextxy(195,260,"6");
outtextxy(135,200,"9");
outtextxy(260,200,"3");
setcolor(YELLOW);
ddaline(150,270,150,370,CYAN);
ddaline(150,370,250,370,CYAN);
ddaline(250,370,250,270,CYAN);
}
//++++++++++++++++

void main()
{int gd,gm;
detectgraph(&gd,&gm);
float xh,yh,xs,ys,mx,my,x,y;float hang=-90,mang=-90,sang=-90;
struct time t;

gettime(&t);

hang+=t.ti_hour*30;
mang+=t.ti_min*6;
sang+=t.ti_sec*0.1;
psang=60;
printf("%d: %d: %d",t.ti_hour,t.ti_min,t.ti_sec);
initgraph(&gd,&gm,"..\\bgi");
while(!kbhit())
{ cleardevice();
drawclock(); // gettime(&t); printf("%d: %d: %d",t.ti_hour,t.ti_min,t.ti_sec);
xh=200+20*cos(pi*hang/180);
yh=200+20*sin(pi*hang/180);
ddaline(200,200,round(xh),(yh),YELLOW);
mx=200+40*cos(pi*mang/180);
my=200+40*sin(pi*mang/180);
ddaline(200,200,round(mx),round(my),RED);
xs=200+60*cos(pi*sang/180);
ys=200+60*sin(pi*sang/180);
ddaline(200,200,round(xs),round(ys),BLUE);
hang+=(1/120);
mang+=0.1;
sang+=6;
if(psang==60)
{ while(psang!=120)
{
x=200+70*cos(psang*pi/180);
y=270+70*sin(psang*pi/180);
psang+=1;
ddaline(200,270,round(x),round(y),RED);
parcir(round(x),round(y),10,RED);
ddaline(200,270,round(x),round(y),BLACK);
parcir(round(x),round(y),10,BLACK);
delay(5);
}
}
if(psang==120)
{ while(psang!=60)
{
x=200+70*cos(psang*pi/180);
y=270+70*sin(psang*pi/180);
psang-=1;
ddaline(200,270,round(x),round(y),RED);
parcir(round(x),round(y),10,RED);
ddaline(200,270,round(x),round(y),BLACK);
parcir(round(x),round(y),10,BLACK);
delay(5);
}
}
delay(700);
}
getch();
}