Pendulum

By Dipin Krishna 

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

int cx=300,cy=100,r=300; 
int x=0,y,p; 

int path(int dtn) 
{ 
    int x1,y1; 
    setcolor(15); 
    if(x>=y) 
    { 
        return 0; 
    } 
    cleardevice(); 

    if(dtn==1) 
    { 
        circle(cx+x,cy+y,20); 
        line(cx,cy,cx+x,cy+y); 
    } 
    else 
    { 
        circle(cx-x,cy+y,20); 
        line(cx,cy,cx-x,cy+y); 
    } 
    delay(10); 
    if(kbhit()) 
        exit(0); 
    x++; 
    if(p<0) 
        p+=2*x+1; 
    else 
    { 
        y--; 
        p+=2*(x-y)+1; 
    } 
    x1=x; 
    y1=y; 
    path(dtn); 

    cleardevice(); 
    if(dtn==1) 
    { 
        circle(cx+x1,cy+y1,20); 
        line(cx,cy,cx+x1,cy+y1); 
    } 
    else 
    { 
        circle(cx-x1,cy+y1,20); 
        line(cx,cy,cx-x1,cy+y1); 
    } 
    delay(10); 
    if(kbhit()) 
        exit(0);
    return(0);
} 

void main() 
{ 
    int gd=DETECT,gm=DETECT; 
    initgraph(&gd,&gm,""); 
    cleardevice(); 
    putpixel(300,100,4); 
    while(1) 
    { 
        x=0; 
        y=r; 
        p=1-r; 
        path(1); 
        x=0; 
        y=r; 
        p=1-r; 
        path(0); 
    } 
}

Comments

  1. UnknownMay 31, 2010 at 11:44 PM

    Hii Dipin,
    I tried the pendulam program,but it gives warning
    My friend gave this program
    #include
    #include
    #include
    #include
    void main()
    {
    int gd=DETECT,gm;
    float xc=320,yc=240,x,y,l,r,a,i,rad;
    initgraph(&gd,&gm,"C:\\TC\\BGI");
    printf("\nEnter the length\n");
    scanf("%f",&l);
    printf("\nEnter radius\n");
    scanf("%f",&r);
    printf("\nEnter angle\n");
    scanf("%f",&a);
    a=a/2;
    while(!kbhit)
    {
    for(i=-a;i<=a;i++)
    {
    rad=(3.14*i)/180;
    x=xc+(l*sin(rad));
    y=yc+(l*cos(rad));
    line(xc,yc,x,y);
    circle(x,y,r);
    setfillstyle(SOLID_FILL,10);
    floodfill(x,y,10);
    delay(30);
    cleardevice();
    }
    for(i=a;i>=-a;i--)
    {
    rad=(3.14*i)/180;
    x=xc+(l*sin(rad));
    y=yc+(l*cos(rad));
    line(xc,yc,x,y);
    circle(x,y,r);
    setfillstyle(SOLID_FILL,10);
    floodfill(x,y,10);
    delay(30);
    cleardevice();
    }
    }
    getch();
    }
    But It didn'nt work out too
    Can you plz help me to correct my mistakes

    ReplyDelete
  2. Hemant GuptaMarch 18, 2011 at 11:45 AM

    my friend try using header filesthey are dos.h,stdio.h,maths.h,conio.h and graphics.h then it will show u successs........just try it...

    ReplyDelete
  3. Hemant GuptaMarch 18, 2011 at 12:15 PM

    to dipin:
    #include
    #include
    #include
    #include

    int cx=300,cy=100,r=300;
    int x=0,y,p;

    void path(int dtn)
    {
    int x1,y1;
    setcolor(15);
    if(x>=y)
    {
    exit (0);
    }
    cleardevice();

    if(dtn==1)
    {
    circle(cx+x,cy+y,20);
    line(cx,cy,cx+x,cy+y);
    }
    else
    {
    circle(cx-x,cy+y,20);
    line(cx,cy,cx-x,cy+y);
    }
    delay(10);
    if(kbhit())
    exit(0);
    x++;
    if(p<0)
    p+=2*x+1;
    else
    {
    y--;
    p+=2*(x-y)+1;
    }
    x1=x;
    y1=y;
    path(dtn);

    cleardevice();
    if(dtn==1)
    {
    circle(cx+x1,cy+y1,20);
    line(cx,cy,cx+x1,cy+y1);
    }
    else
    {
    circle(cx-x1,cy+y1,20);
    line(cx,cy,cx-x1,cy+y1);
    }
    delay(10);
    if(kbhit())
    exit(0);
    }



    void main()
    {
    int gd=DETECT,gm=DETECT;
    initgraph(&gd,&gm,"");
    cleardevice();
    putpixel(300,100,4);
    printf("enter 1 if u want to see pendulum");
    scanf("%d",&ch);
    while(ch!=1)
    {
    x=0;
    y=r;
    p=1-r;
    path(1);
    x=0;
    y=r;
    p=1-r;
    path(0);
    }
    getch();
    }dipin use this may be this will remove ur warnings..........

    ReplyDelete
  4. U are my love and my lifeOctober 19, 2011 at 10:34 PM

    plzz tel me the coding to show the ticking the clock or minutes hand moving in a clock..

    ReplyDelete
  5. zaheerApril 11, 2012 at 3:57 PM

    plz help me, i need a program of two balls are moving and when they collide,they become fours balls

    ReplyDelete

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