public static float GetRotation(Dir4 dir)
{
Dir4[] list = Dir4.GetList();
int idx = Array.IndexOf(list, dir);
if (idx != -1)
{
return(idx == 0 ? 0 : (360 - (idx * 90)));
}
return(0);
}
public static Dir4 Clockwise(Dir4 dir)
{
Dir4[] list = Dir4.GetList();
int idx = Array.IndexOf(list, dir);
if (idx != -1)
{
return(list[(idx + 1) % 4]);
}
return(null);
}
public static Dir4 CounterClockwise(Dir4 dir)
{
Dir4[] list = Dir4.GetList();
int idx = Array.IndexOf(list, dir);
if (idx != -1)
{
return(list[idx > 0 ? idx - 1 : 3]);
}
return(null);
}
