Original Post
I need a unit to move to its new location and the following procedure does it for me except the unit goes past the target point regardless of whether the point is behind it or in front of it ,although this doensnt make sense cause if its infront of it and you go pas it then it is behinde you and the unit should go backward and zigzag all the time in between(infront of and then behind the point)
The Problem is that
float getxspeed(float x,float y,float tx, float ty)
{
float dx = x-tx,dy = y-ty;
float sx=0;
float sy=0;
if (positive(dx) > positive(dy))
{
sx = dx / positive(dx);
sy = dy / positive(dx);
}
if (positive(dx) < positive(dy))
{
sx = dx / positive(dy);
sy = dy / positive(dy);
}
return sx;
}
void cUnit::update(int step)
{
bx = int(x);
by = int(y);
if (bx != tx)
{
xspeed = getxspeed(x,y,tx,ty)*step*0.1f;
x+=xspeed;
}
if (by != ty)
{
yspeed = getxspeed(y,x,ty,tx)*step*0.1f;
y+=yspeed;
}
}