private bool checkIfValidMove(IPosition currentPosition, IPosition newPosition, ILayer layer)
{
bool characterDoesNotExist = layer.GetCharacter(currentPosition) == null;
if (characterDoesNotExist)
{
return(false);
}
bool newPositionIsNotValid = layer.PositionIsValid(newPosition) == false;
if (newPositionIsNotValid)
{
return(false);
}
ICharacter characterOnNewPos = layer.GetCharacter(newPosition);
bool newPositionIsNotFree = characterOnNewPos != null;
if (newPositionIsNotFree)
{
return(false);
}
bool newPositionIsNotWalkable = layer.GetTile(newPosition).Walkable == false;
if (newPositionIsNotWalkable)
{
return(false);
}
return(true);
}
//Moves a character in the layer from oldPosition to newPosition
//If move is invalid return false
//If successful returns true
public bool MoveCharacter(IPosition currentPosition, IPosition newPosition, ILayer layer)
{
if (checkIfValidMove(currentPosition, newPosition, layer))
{
ICharacter characterToMove = layer.GetCharacter(currentPosition);
layer.RemoveCharacter(characterToMove);
characterToMove.Position = newPosition;
layer.AddCharacter(characterToMove);
return(true);
}
return(false);
}
public void MovementTest_PlayerMoves_CharacterIsUpdated()
{
_layer.PositionIsValid(Arg.Any <IPosition>()).Returns(true);
_layer.GetCharacter(Arg.Is <IPosition>(c => c == _currentPosition)).Returns(_character);
_layer.GetCharacter(Arg.Is <IPosition>(c => c == _targetPosition)).Returns((ICharacter)null);
_layer.GetTile(Arg.Any <IPosition>()).Walkable.Returns(true);
_currentPosition = Substitute.For <IPosition>();
_currentPosition.X.Returns(3);
_currentPosition.Y.Returns(3);
_targetPosition = Substitute.For <IPosition>();
_targetPosition.X.Returns(4);
_targetPosition.Y.Returns(3);
_character.Position.X.Returns(3);
_character.Position.Y.Returns(3);
_uut.MoveCharacter(_currentPosition, _targetPosition, _layer);
Assert.AreEqual(_targetPosition, _character.Position);
}
private void MoveCharacter(ICharacter movingCharacter, IPosition targetPosition, ILayer layer)
{
//Attempt to move character, will return false if tile is not walkable or is already occupied
if (!_movement.MoveCharacter(movingCharacter.Position, targetPosition, layer))
{
//Moving didn't work, find out if failure was because it was occupied
ICharacter characterOnTile = layer.GetCharacter(targetPosition);
if (characterOnTile != null)
{
_combatHandler.Fight(movingCharacter, characterOnTile, layer);
// Try to move again will succed if opponent is dead
_movement.MoveCharacter(movingCharacter.Position, targetPosition, layer);
}
}
}