Traffic Signal Simulator in C graphics

HELLO STUDENTS,    

 I have built a program of Traffic Signal Simulator using Graphics. It simply shows a simulation of traffic signal like red,yellow and green lights lighting after regular intervals.

Here you go --->

#include<conio.h>

#include<graphics.h>

#include<stdlib.h>

#include<dos.h>

int main()

{

int gd,gm,midx,midy;

detectgraph(&gd,&gm);

initgraph(&gd,&gm,"c:\\turboc3\\bgi");//initialize graphics

midx=getmaxx()/2;//midpoint of x axis

// midy=getmaxy()/2;midpoint of y axis

settextstyle(0,HORIZ_DIR,2);

outtextxy(150,50,"TRAFFIC SIGNAL SIMULATOR");

setcolor(WHITE);

rectangle(midx-40,100,midx+40,320);

rectangle(midx-15,320,midx+15,480);

floodfill(midx-14,321,WHITE);

circle(midx,140,30);

circle(midx,210,30);

circle(midx,280,30);

while(!kbhit())

{

//RED color blink

setfillstyle(SOLID_FILL,RED);

floodfill(midx,140,WHITE);

setcolor(RED);

outtextxy(400,130,"STOP");

delay(15000);

setfillstyle(SOLID_FILL,BLACK);

floodfill(midx,140,WHITE);

setcolor(BLACK);

outtextxy(400,130,"STOP");

//YELLOW COLOR BLINK

setfillstyle(SOLID_FILL,YELLOW);

floodfill(midx,210,WHITE);

setcolor(YELLOW);

outtextxy(400,200,"READY/SLOW");

delay(3000);

setfillstyle(SOLID_FILL,BLACK);

floodfill(midx,210,WHITE);

setcolor(BLACK);

outtextxy(400,200,"READY/SLOW");

//GREEN COLOR BLINK

setfillstyle(SOLID_FILL,GREEN);

floodfill(midx,280,WHITE);

setcolor(GREEN);

outtextxy(400,270,"GO");

delay(10000);

setfillstyle(SOLID_FILL,BLACK);

floodfill(midx,280,WHITE);

setcolor(BLACK);

outtextxy(400,270,"GO");

}

getch();

closegraph();

return 0;

}

fig 1: Output of the above program.