/// <summary>
/// Returns the opposite <see cref="WalkDirection"/> from the given direction.
/// </summary>
/// <remarks><see cref="WalkDirection.None"/> is opposite to itself.</remarks>
/// <param name="walkDirection">The direction to find the opposite of.</param>
/// <returns>The opposite direction from the given direction.</returns>
public static WalkDirection OppositeWalkDirection(WalkDirection walkDirection)
{
if (walkDirection == WalkDirection.Up)
{
return(WalkDirection.Down);
}
if (walkDirection == WalkDirection.Down)
{
return(WalkDirection.Up);
}
if (walkDirection == WalkDirection.Left)
{
return(WalkDirection.Right);
}
if (walkDirection == WalkDirection.Right)
{
return(WalkDirection.Left);
}
if (walkDirection == WalkDirection.UpLeft)
{
return(WalkDirection.DownRight);
}
if (walkDirection == WalkDirection.UpRight)
{
return(WalkDirection.DownLeft);
}
if (walkDirection == WalkDirection.DownLeft)
{
return(WalkDirection.UpRight);
}
if (walkDirection == WalkDirection.DownRight)
{
return(WalkDirection.UpLeft);
}
return(WalkDirection.None);
}
/// <summary>
/// Finds the facing direction when getting from a start point to a target point.
/// </summary>
/// <remarks>
/// This only works correctly if the int values used for the walk directions are in sync
/// with the values used for facing directions in game.
/// </remarks>
/// <param name="targetPosition">The target position.</param>
/// <param name="startPosition">The start position.</param>
/// <returns>The <see langword="int"/> representing the facing direction when going from start to target.</returns>
public static int GetFacingDirection(Vector2 targetPosition, Vector2 startPosition)
{
return(WalkDirection.GetFacingWalkDirection(targetPosition, startPosition).Value);
}
