ConstrainPositionToBox

/*
    Used to manipulate pathfinding coordinates to constrain a position to within a rectangle.
    Positions are altered by shifting them back towards the inside edge of the rectangle.

    Returns the number of modifications done to the coordinates (0, 1 or 2)
*/

ConstrainPositionToBox(&Float:x, &Float:y, Float:minx, Float:miny, Float:maxx, Float:maxy)
{
    new modified;

    if(x < minx)
    {
        x = (minx + 1.0);
        modified++;
    }

    else if(x > maxx)
    {
        x = (maxx - 1.0);
        modified++;
    }

    if(y < miny)
    {
        y = (miny + 1.0);
        modified++;
    }

    else if(y > maxy)
    {
        y = (maxy - 1.0);
        modified++;
    }

    return modified;
}