async Task BlightAdded(ITokenAddedArgs args)
{
bool isCascading = args.Reason switch {
AddReason.AsReplacement => false,
AddReason.MovedTo => false,
AddReason.Added => true, // Generic add
AddReason.Ravage => true, // blight from ravage
AddReason.BlightedIsland => true, // blight from blighted island card
AddReason.SpecialRule => true, // Heart of wildfire - Blight from add presence
_ => throw new ArgumentException(nameof(args.Reason))
};
if (!isCascading)
{
return;
}
// remove from card.
await TakeFromBlightSouce(args.Count, args.Space);
if (BlightCard != null && blightOnCard <= 0)
{
Log(new IslandBlighted(BlightCard));
await BlightCard.OnBlightDepleated(this);
}
// Calc side effects
bool isFirstBlight = Tokens[args.Space].Blight.Count == 1;
var effect = new AddBlightEffect {
DestroyPresence = true, Cascade = !isFirstBlight, GameState = this, Space = args.Space
};
await ModifyBlightAddedEffect.InvokeAsync(effect);
// Destory presence
if (effect.DestroyPresence)
{
foreach (var spirit in Spirits)
{
if (spirit.Presence.IsOn(args.Space))
{
await spirit.Presence.Destroy(args.Space, this, DestoryPresenceCause.Blight, args.Reason);
}
}
}
// Cascade blight
if (effect.Cascade)
{
Space cascadeTo = await Spirits[0].Action.Decision(Select.Space.ForAdjacent(
$"Cascade blight from {args.Space.Label} to",
args.Space,
Select.AdjacentDirection.Outgoing,
args.Space.Adjacent.Where(x => !Island.Terrain_ForPowerAndBlight.IsOneOf(x, Terrain.Ocean)),
Present.Always
));
await Tokens[cascadeTo].Blight.Add(1, args.Reason); // Cascading blight shares original blights reason.
}
}
void BestowTheEnduranceOfBedrock(AddBlightEffect effect)
{
// When blight is added to one of your lands,
// if the blight is less than or equal to your presence,
if (effect.GameState.Tokens[effect.Space].Blight <= Presence.CountOn(effect.Space))
{
// it does not cascade or destroy presence (yours or others')."
effect.Cascade = false;
effect.DestroyPresence = false;
}
}
