Here is the program.
void main( )
{
int h, v;
h = 1; v = 10;
while ( !kbhit( ) || h <= 80 )
{
gotoxy( h, v );
printf( "<--->" );
delay( 200 );
clrscr( );
h = h + 1;
}
getch( );
}
I am making a program in C, in which I have used kbhit()
to run a loop until a key is pressed.
so here the arrow "<--->"
will keep on moving forward until a key is pressed or until it reaches the last pixel of the screen.
What I want is that the program should increment h by 1 everytime 'd'
is pressed and decrement by 1 everytime 'a'
is pressed. i.e h++;
and h--;
and run another loop until a character is pressed.
The idea is more like the Snake game, in which the snake keeps on moving in a certain direction until a key is pressed. Help please!
clrscr() should come before the gotoxy and printf
Anyway, what I would do is create a state variable, just to indicate the direction the snake should go, i.e., something that stores if the user pressed 'a' or 'd'.
And I would not leave the loop, just use a if(kbhit) and get the char.
int direction = 1; char control;
while (1)
{
if(kbhit()){
control = getch();
switch (control){
case 'a': direction = -1; break;
case 'd': direction = +1; break;
default: break;
}
}
clrscr( );
gotoxy( h, v );
printf( "<--->" );
delay( 200 );
h = h + direction;
}