bool PlayerMobile_GetNextTile(Position3D current, Vector2Int goal, out Direction facing, out Vector2Int nextPosition, out int nextZ)
{
bool moveIsOkay;
// attempt to move in the direction specified.
facing = getNextFacing(current, goal);
var initialFacing = facing;
nextPosition = MobileMovementCheck.OffsetTile(current, facing);
moveIsOkay = MobileMovementCheck.CheckMovement((Mobile)_entity, current, facing, out nextZ);
// The legacy client only allows alternative direction checking when moving in a cardinal (NSEW) direction.
// This is checked by only checked alterate directions when the initial facing modulo 2 is 1.
// By contrast, this client allows, when enabled, alternative direction checking in any direction.
if (NewDiagonalMovement || ((int)initialFacing % 2 == 1))
{
// if blocked, attempt moving in the direction 1/8 counterclockwise to the direction specified.
if (!moveIsOkay)
{
facing = (facing - 1) & Direction.ValueMask;
nextPosition = MobileMovementCheck.OffsetTile(current, facing);
moveIsOkay = MobileMovementCheck.CheckMovement((Mobile)_entity, current, facing, out nextZ);
}
// if blocked, attempt moving in the direction 1/8 clockwise to the direction specified.
if (!moveIsOkay)
{
facing = (facing + 2) & Direction.ValueMask;
nextPosition = MobileMovementCheck.OffsetTile(current, facing);
moveIsOkay = MobileMovementCheck.CheckMovement((Mobile)_entity, current, facing, out nextZ);
}
}
// if we were able to move, then set the running flag (if necessary) and return true.
if (moveIsOkay)
{
if (IsRunning)
{
facing |= Direction.Running;
}
return(true);
}
// otherwise return false, indicating that the player is blocked.
else
{
return(false);
}
}
bool PlayerMobile_CheckForMoveEvent()
{
if (_playerMobile_NextMove != Direction.Nothing)
{
var nextMove = _playerMobile_NextMove;
_playerMobile_NextMove = Direction.Nothing;
// get the next tile and the facing necessary to reach it.
Direction facing;
var targetTile = MobileMovementCheck.OffsetTile(CurrentPosition, nextMove);
int nextZ;
Vector2Int nextTile;
if (PlayerMobile_GetNextTile(CurrentPosition, targetTile, out facing, out nextTile, out nextZ))
{
// Check facing and send change facing message to server if necessary.
PlayerMobile_SendChangeFacingMsg(facing);
// copy the running flag to our local facing if we are running, zero it out if we are not.
if ((nextMove & Direction.Running) != 0)
{
facing |= Direction.Running;
}
else
{
facing &= Direction.FacingMask;
}
if (CurrentPosition.X != nextTile.x ||
CurrentPosition.Y != nextTile.y ||
CurrentPosition.Z != nextZ)
{
_moveEvents.AddMoveEvent(nextTile.x, nextTile.y, nextZ, (int)(facing), true);
return(true);
}
}
// blocked
else
{
return(false);
}
}
return(false);
}