i want to draw a rectangle inside it a saqure the inside it a trianglet +using bresenham algorithm

Question

the doctor give us this for code triangle i want to change the code (void main ) for rectangle and square bresenham algorithm

#include<iostream.h>
#include<graphics.h>
#include <conio.h>

#include <stdlib.h>

void BRH(int x1, int y1, int x2,int y2 ,int c )
{
int dx,dy,stepx,stepy,ac,x,y;

dx=x2-x1;
dy=y2-y1;

if(dx>0)
stepx=1;
else
stepx=-1;

if(dy>0)
stepy=1;
else
stepy=-1;

x=x1; y=y1;ac=0;

if(abs(dx)>abs(dy))
{
putpixel(x,y,c);

do
{
x+=stepx;
ac+=abs(dy);
if(ac>= abs(dx))
{
y+=stepy;
ac-=abs(dx);
}
putpixel(x,y,c);
}
while((x!=x2)&&(y!=y2));
}
else

if(abs(dx)<abs(dy))
{
putpixel(x,y,c);

do
{
y+=stepy;
ac+=abs(dx);
if( ac>= abs(dy))
{
x+=stepx;
ac-=abs(dy);
}
putpixel(x,y,c);
}
while((x!=x2)&&(y!=y2));
}
}

void main()
{
int driver=DETECT,mode;

int x,y,x1,x2,y1,y2,x3,y3,stepx,stepy,ac,dx,dy,c,i;

cout<<"x1,y1 x2,y2 ,c\n ";
cin>> x1>>y1>>x2>>y2>>x3>>y3>>c;

initgraph(&driver,&mode,"c:/turboc3/bgi");

BRH(x1,y1,x2,y2,c);
BRH(x1,y1,x3,y3,c);
BRH(x2,y2,x3,y3,c);

getch();
closegraph();

Answer 1

Why u not using rectangle property and set size according to your need you don't need to do much more calculation

Answer 2

The doctor want us to using this method +bresenham algorithm
I slove the tringle
BRH(x1,y1,x2,y2,c); BRH(x1,y1,x3,y3,c); BRH(x2,y2,x3,y3,c);
Using this
(200,120,252,210,150,212) and it works

But the it dosent works for rectangle and square
Can u help me please I tried a lot but it dosent work :( 🌠🌠