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Movement

Started by Damengo Jan 19, 2002 at 7:32 AM 3 replies 200+ views

Original Post

Jan 19, 2002 at 7:32 AM

I need some help with a problem. I have made a little demo with a background and a cube thats spinnning infront. My problem is that i want the cube to move from the middle(It´s positioned there from the begining) to the right edge and there change direction and move to the left edge and there change and move to there right and so on. I know how to move the cube with the command gltranslatef(x,y,z); for example gltranslatef(xmov,0.0f,-5.0f); and then make xmov+=0.01f; so the cube moves to the right. I have tried something like if (xmov==(4.0f) { xmov-=0.01f; } so it would change direction when the xmov=4.0f which is at the right edge of my window. but it doesn´t work.

Aprosenf

Jan 19, 2002 at 8:47 AM

  int x_pos;
int dir = 0;

if(dir == 0)
{
    x_pos += 0.1f;

    if(x_pos >= 4.0f)
        dir = 1;
}
else
{
    x_pos -= 0.1f;

    if(x_pos <= -4.0f)
        dir = 0;
}

Damengo

Author

Damengo

Jan 19, 2002 at 12:01 PM

I have created a piece of code exactly like the one you posted but it doesnt work.. (same goes for the thing you posted.(

it just keeps moving to the direction you choose first.