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I cant move this triangle using keyboard.also a triangle shape is not comming

dgcharitha (20)
#include<iostream>
#include<ncurses.h>
//#include<iostream>
using namespace std;
void triangle();
int main()
{
int ch;
int x;
x=20;
initscr();
keypad(stdscr,TRUE);
noecho();

move(5,x);

triangle();
ch =getch();
while(ch !='q')
{
if(ch==KEY_LEFT)
x=x-1;
else if(ch==KEY_RIGHT)
x=x+1;

move(5,x);
triangle();
ch=getch();
}
endwin();
return 0;
}

void triangle()
{
for(int i=0;i<4;i++)
{
for(int j=0;j<i;j++)
cout<<"*";
cout<<endl;
}
}
drew887 (130)
if you're using curses, you can't use cout to write to the screen. you have to use some thing like printw
ARMinius (32)
The code doesn't even compile on my Linux machine:

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/tmp/ccGKDZUT.o: In function `main':
t.cpp:(.text+0x10): undefined reference to `initscr'
t.cpp:(.text+0x17): undefined reference to `stdscr'
t.cpp:(.text+0x24): undefined reference to `keypad'
t.cpp:(.text+0x29): undefined reference to `noecho'
t.cpp:(.text+0x38): undefined reference to `move'
t.cpp:(.text+0x44): undefined reference to `stdscr'
t.cpp:(.text+0x4c): undefined reference to `wgetch'
t.cpp:(.text+0x7c): undefined reference to `move'
t.cpp:(.text+0x88): undefined reference to `stdscr'
t.cpp:(.text+0x90): undefined reference to `wgetch'
t.cpp:(.text+0xa3): undefined reference to `endwin'
collect2: ld returned 1 as End-Status


try

cout << yourvariable << flush;

If that doesn't work change the prinitng routine
drew887 (130)
ARMinus did you have ncurses installed when you compiled that?
dgcharitha (20)
guys bt i called iostream object library.so i can use cout statements...
drew887 (130)
Even with #include <iosteam> you shouldn't use cout to write to the screen when using curses.
Last edited on
drew887 (130)
Anyway here is a working example of a triangle shape
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#include<ncurses.h>
//#include<iostream>
using namespace std;
void triangle();
int x=10;
int y=5;
int main()
{
int ch;
initscr();
keypad(stdscr,TRUE);
noecho();

move(y,x);

triangle();
ch =getch();
while(ch !='q')
{
	switch(ch){
	case KEY_LEFT:
	x--;
	break;
	case KEY_RIGHT:
	x++;
	break;
	case KEY_UP:
	y--;
	break;
	case KEY_DOWN:
	y++;
	break;
	}
//move(y,x);
clear();
triangle();
refresh();
ch=getch();
}
endwin();
return 0;
}

void triangle()
{
	for(int i=0;i<4;i++){
		for(int j=0-i;j<i;j++){
			mvaddch(i+y,x+j,'*');
		}
	}
}
dgcharitha (20)
thank u very much.i got it
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