Moving two circle above a line by Programming in C.

#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<graphics.h>

void main ()
{
int gd=DETECT, gm=DETECT, i,j,x,x2,y;
initgraph(&gd, &gm, "c:\\TurboC3\\bgi");
setcolor(RED);
delay (100);
line(100,161,600,161);

x=100;
y=150;
x2=600;
 
for(i=0, j=0; i<245,j<245; i+=5,j+=5)
{
circle(x+i, y, 10);
circle(x2-j, y, 10);
delay(100);
setcolor(BLACK);
circle(x+i, y, 10);
circle(x2-j, y, 10);
setcolor(RED);
}
 
rectangle(300,125,350,150);
rectangle(360,125,410,150);

getch();
}

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National Flag of Bangladesh by programmign in C

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<dos.h>
void main()
{
int driver = DETECT, mode=0;
initgraph (&driver, &mode, "..\\bgi");
delay(1000);
printf ("\n\n\n\t\t\t National Flag of Bangladesh");
printf("\n\t\t\t Programmed by Mohammad Lukman Hussain");
delay(1000);

setcolor(2); /* Flag's Rectangle */
//rectangle(200, 150, 450, 300);
rectangle(200,150,400,250);
setfillstyle(1,2);
floodfill(325,225,2);
delay(1000);

setcolor(4); /* Flag's Circle */
//circle(325,225,50);
circle(300,200,30);
setfillstyle(1,4);
floodfill(300,200,4);
delay(1000);

setcolor(3); /* Flag's Stand */
rectangle(190,150,200,400);
setfillstyle(1,5);
floodfill(190,350,3);
delay(1000);

setcolor(3); /* Ground Stand */
rectangle(180,400,210,410);
rectangle(170,410,220,420);
rectangle(160,420,230,430);
delay(1000);

getch();
}

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How to create a HTTP Server using Cisco Packet Tracer.

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Moving Wheel using Mid-Point Circle algorithm and DDA Line algorithm

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<math.h>
#include<dos.h>

int l = 1;

void ddaline(int x1, int y1, int x2, int y2)
{

    int s, dx, dy, m;
    float xi, yi, x, y;

    dx = x2 - x1;
    dy = y2 - y1;

    if (abs(dx) > abs(dy))
    s = abs(dx);
    else
    s = abs(dy);

    xi = dx / (float) s;
    yi = dy / (float) s;

    x = x1;
    y = y1;

    putpixel(x1 + 0.5, y1 + 0.5, 15);

    for (m = 0; m < s; m++) {
    x += xi;
    y += yi;
    putpixel(x + 0.5, y + 0.5, 15);
    }
}


void plotpoints1(int x, int y, int cx, int cy)
{
    putpixel(cx + x, cy + y, 15);
    putpixel(cx - x, cy - y, 15);
    putpixel(cx - y, cy + x, 15);
    putpixel(cx + y, cy - x, 15);
    if (l % 20 == 0) {
    ddaline(cx - x, cy - y, cx + x, cy + y);
    ddaline(cx - y, cy + x, cx + y, cy - x);
    }
    l++;
}

void plotpoints2(int x, int y, int cx, int cy)
{

    putpixel(cx - x, cy + y, 15);
    putpixel(cx + x, cy - y, 15);
    putpixel(cx + y, cy + x, 15);
    putpixel(cx - y, cy - x, 15);
    if (l % 20 == 0) {
    ddaline(cx + x, cy - y, cx - x, cy + y);
    ddaline(cx - y, cy - x, cx + y, cy + x);
    }
    l++;
}


void mcircle(int cx, int cy, int r)
{
    int x = 0, y, p;

    y = r;
    p = 1 - r;


    while (x < y) {
    plotpoints1(x, y, cx, cy);
    x++;
    if (p < 0)
        p += 2 * x + 1;
    else {
        y--;
        p += 2 * (x - y) + 1;
    }
    }



    x = y + 1;
    while (abs(x) > 0) {
    plotpoints2(x, y, cx, cy);
    x--;
    if (p >= 0)
        p = p - 2 * x - 1;
    else {
        y++;
        p = p - 2 * (x - y) - 1;
    }
    }
}

void main()
{
    int gd = DETECT, gm = DETECT;
    int i = 0;
    initgraph(&gd, &gm, "..\\bgi");

    while (!kbhit()) {
    if (i > 640)
        i = -200;
    cleardevice();
    mcircle(100 + (i++), 200, 100);
    delay(90);
    i++;
    }
    getch();
}

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Animation circel Using Programmign C

Program 1:
 
#include<stdio.h>
#include<conio.h>
#include<stdio.h>
#include<graphics.h>
#include<stdlib.h>
void main()
{int p,q,r;
int x,y;
int gdriver = DETECT, gmode;
initgraph(&gdriver, &gmode, "..\\bgi");

x=getmaxx()/2;
y=getmaxy()/2;
for(q=1;q<15;q++)
{
setcolor(q);
for(p=400;p>1;p--)
{
circle(x,y,p);
}
setcolor(q+2);
for(r=1;r<400;r++)
{
circle(x,y,r);
}
}
getch();
}


Program 2:

#include<graphics.h>
#include<stdio.h>
#include<dos.h>
#include<conio.h>

main()
{
int gd=DETECT,gm,col=0;
initgraph(&gd,&gm,"..\\bgi");
while(!kbhit())
{
setcolor(15);
circle(col,100,50);
delay(50);

col++;
if(col>=600)
col=0;
cleardevice();
}
}

Program 3:

#include<conio.h>
#include<stdio.h>
#include<graphics.h>
#include<dos.h>
#include<math.h>

void main()
{
    int gd=DETECT,gm;
    initgraph(&gd,&gm,"..\\bgi");
    int x=100,y=100,r=20;
    float c=.1;
    for(float i=0;i<100;i=i+.1)
    {
        delay(50);
        cleardevice();
        line(x+i,y,x+i+r*cos(i),y+r*sin(i));
        line(x+i,y,x+i+r*cos(90+i),y+r*sin(90+i));
        line(x+i,y,x+i+r*cos(135+i),y+r*sin(135+i));
        line(x+i,y,x+i+r*cos(180+i),y+r*sin(180+i));
        line(x+i,y,x+i+r*cos(225+i),y+r*sin(225+i));
        line(x+i,y,x+i+r*cos(315+i),y+r*sin(315+i));
        circle(x+i,y,r);
        if(kbhit())
        {
            if(getch())
            {
                printf("break");
                if(getch()){}
             }

        }

    }
       //    getch();
}

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Circle using Programmign C

#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<graphics.h>

void main ()
{
 int gd=DETECT, gm=DETECT, i, x=100, y=150;
 initgraph(&gd, &gm, "..\\bgi");
 setcolor(RED);

 while(1)
 {
x=100;
y=150;

 for(i=0; i<250; i+=5)
 {
 circle(x+i, y+i, 10);
 delay(100);
 setcolor(BLACK);
 circle(x+i, y+i, 10);
 setcolor(RED);
 }
 x=350;
 y=400;
 for(i=0; i<250; i+=5)
 {
 circle(x+i, y-i, 10);
 delay(100);
 setcolor(BLACK);
 circle(x+i, y-i, 10);
 setcolor(RED);
 }

 x=600;
 y=150;
 for(i=0; i<500; i+=5)
 {
 circle(x-i, y, 10);
 delay(100);
 setcolor(BLACK);
 circle(x-i, y, 10);
 setcolor(RED);
 }

  }

getch();
}

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Smile face in Programming C

#include<graphics.h>
#include<dos.h>
#include<conio.h>
#include<stdlib.h>

void main()
{
   int gd = DETECT, gm, area, temp1, temp2, left = 25, top = 75;
   void *p;

   initgraph(&gd,&gm,"..\\bgi");

   setcolor(YELLOW);
   circle(50,100,25);
   setfillstyle(SOLID_FILL,YELLOW);
   floodfill(50,100,YELLOW);

   setcolor(RED);
   setfillstyle(SOLID_FILL,RED);
   fillellipse(44,85,2,6);
   fillellipse(56,85,2,6);

   ellipse(50,100,205,335,20,9);
   ellipse(50,100,205,335,20,10);
   ellipse(50,100,205,335,20,11);

   area = imagesize(left, top, left + 50, top + 50);
   p = malloc(area);

   setcolor(WHITE);
   settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);
   outtextxy(155,451,"Smiling Face Animation");

   setcolor(BLUE);
   rectangle(0,0,639,449);

   while(!kbhit())
   {
      temp1 = 1 + random ( 588 );
      temp2 = 1 + random ( 380 );

      getimage(left, top, left + 50, top + 50, p);
      putimage(left, top, p, XOR_PUT);
      putimage(temp1 , temp2, p, XOR_PUT);
      delay(200);
      left = temp1;
      top = temp2;
      delay(200);
   }

   getch();
   closegraph();
}

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