public async Task <string> Exec(
BuildingEventArgs args,
TokenCountDictionary tokens,
GameState gameState
)
{
if (!tokens.HasInvaders())
{
return("No invaders");
}
BuildingEventArgs.BuildType buildType = args.GetBuildType(tokens.Space);
this.tokens = tokens;
this.buildType = buildType;
this.gameState = gameState;
if (await StopBuildWithDiseaseBehavior())
{
return(tokens.Space.Label + " build stopped by disease");
}
// Determine type to build
int townCount = tokens.Sum(Invader.Town);
int cityCount = tokens.Sum(Invader.City);
HealthTokenClass invaderToAdd = townCount > cityCount ? Invader.City : Invader.Town;
// check if we should
bool shouldBuild = buildType switch {
BuildingEventArgs.BuildType.CitiesOnly => invaderToAdd == Invader.City,
BuildingEventArgs.BuildType.TownsOnly => invaderToAdd == Invader.Town,
_ => true,
};
// build it
if (shouldBuild)
{
await tokens.AddDefault(invaderToAdd, 1, AddReason.Build);
}
return(invaderToAdd.Label);
}