//drop handler for CurrentSquad buttons in SquadPage.xaml
public void Drop(IDropInfo dropInfo)
{
PlayerViewModel p = (PlayerViewModel)dropInfo.Data;
//buttons corresponds to players in CurrentSquad
TacticsPosition position = ((PlayerViewModel)dropInfo.TargetItem).TacticsPosition;
//adding player to position
p.TacticsPosition = position;
if (!this.IsInTactics)
{
ModifyCurrentSquad(p);
}
}
private void RemoveFromCurrentSquad(object parameter)
{
//method invoked in ModifyCurrentSquad
if (parameter is Tuple <PlayerViewModel, RemoveFromSquadOption> )
{
Tuple <PlayerViewModel, RemoveFromSquadOption> tuple = (Tuple <PlayerViewModel, RemoveFromSquadOption>)parameter;
int indexToRemove = TacticsPositions.IndexOf(tuple.Item1);
if (tuple.Item2.Equals(RemoveFromSquadOption.RemovePlayer))
{
//replacing real player by dummy one for proper tactics display
TacticsPositions[indexToRemove] = new PlayerViewModel {
TacticsPosition = (TacticsPosition)indexToRemove
};
}
else if (tuple.Item2.Equals(RemoveFromSquadOption.RemovePosition))
{
//removing position
TacticsPositions[indexToRemove] = null;
}
}
//method invoked by button onclick event in SquadPage.xaml
else if (parameter is PlayerViewModel)
{
PlayerViewModel p = (PlayerViewModel)parameter;
//removing player
p.TacticsPosition = TacticsPosition.NP;
if (!this.IsInTactics)
{
ModifyCurrentSquad(p);
}
}
}
private void ModifyCurrentSquad(object parameter)
{
if (parameter is PlayerViewModel)
{
PlayerViewModel p = (PlayerViewModel)parameter;
//if we want to add player or change his position
if (p.TacticsPosition > TacticsPosition.NP)
{
//new index of player in tactics
int index = (int)p.TacticsPosition;
//player in current squad, we want to change his position
if (TacticsPositions.Contains(p))
{
//new position is not in current tactics, we have to remove previous position
if (TacticsPositions[index] == null)
{
RemoveFromCurrentSquad(Tuple.Create(p, RemoveFromSquadOption.RemovePosition));
}
//new position is in current tactics but is busy by another player so we have to swap position between two players
else if (TacticsPositions[index].Name != null)
{
//old index of Player p in tactics
int tempIndex = TacticsPositions.IndexOf(p);
if (TacticsPositions[index].TacticsPosition != (TacticsPosition)tempIndex)
{
//we have to move another player to old Player p position, SelectionChanged will be invoked
TacticsPositions[index].TacticsPosition = (TacticsPosition)tempIndex;
//or we will do it by ourselves if there is no TacticsViewModel which ownes this SquadViewModel
if (!this.IsInTactics)
{
ModifyCurrentSquad(TacticsPositions[index]);
}
}
}
//new position is free and in current tactics, we have to remove player from his previous position
else
{
RemoveFromCurrentSquad(Tuple.Create(p, RemoveFromSquadOption.RemovePlayer));
}
}
//player not in current squad, we want to add him
else
{
//player can be add only to one of 11 positions in current tactics
if (TacticsPositions[index] == null)
{
return;
}
//there is another player at this position
else if (TacticsPositions[index].Name != null)
{
//we have to remove another player, SelectionChanged will be invoked
TacticsPositions[index].TacticsPosition = TacticsPosition.NP;
}
}
//finally we add player to his new position in squad
TacticsPositions[index] = p;
}
//we want to remove player from squad
else if (p.TacticsPosition == TacticsPosition.NP)
{
int index = TacticsPositions.IndexOf(p);
//if player is in squad we gonna remove him
if (index > -1)
{
RemoveFromCurrentSquad(Tuple.Create(TacticsPositions[index], RemoveFromSquadOption.RemovePlayer));
}
}
}
}