/// <summary>
/// Adds a decor provider to the list.
/// </summary>
/// <param name="prefabID">The prefab ID of the provider.</param>
/// <param name="provider">The provider to add.</param>
/// <param name="decor">The provider's current decor score.</param>
/// <returns>true if the decor score was changed, or false otherwise.</returns>
public bool AddDecorProvider(Tag prefabID, DecorProvider provider, float decor)
{
BestDecorList values = null;
bool add = false;
if (provider == null)
{
throw new ArgumentNullException("provider");
}
lock (decorProviders) {
if (decor < 0.0f && negativeDecor != null)
{
// Hard mode mwahaha
if (!negativeDecor.ContainsKey(provider))
{
negativeDecor.Add(provider, decor);
Grid.Decor[cell] += decor;
add = true;
}
}
else if (!decorProviders.TryGetValue(prefabID, out values))
{
decorProviders.Add(prefabID, values = new BestDecorList(cell));
UpdateNumPositive();
}
}
if (values != null)
{
lock (values) {
add = values.AddDecorItem(decor, provider);
}
}
return(add);
}
/// <summary>
/// Retrieves the decor score provided by the provider.
/// </summary>
/// <param name="provider">The decor provider to check.</param>
/// <returns>The score provided by that provider, or 0 if it does not provide decor there.</returns>
public float GetDecorProvidedBy(DecorProvider provider)
{
BestDecorList values = null;
float decor = 0.0f;
if (provider == null)
{
throw new ArgumentNullException("provider");
}
lock (decorProviders) {
if (negativeDecor == null || !negativeDecor.TryGetValue(provider, out decor))
{
decorProviders.TryGetValue(provider.PrefabID(), out values);
}
}
if (values != null && provider == values.BestProvider)
{
decor = values.BestDecor;
}
return(decor);
}
/// <summary>
/// Removes a decor provider from the list.
/// </summary>
/// <param name="prefabID">The prefab ID of the provider.</param>
/// <param name="provider">The provider to remove.</param>
/// <param name="decor">The provider's current decor score.</param>
/// <returns>true if the decor score was changed, or false otherwise.</returns>
public bool RemoveDecorProvider(Tag prefabID, DecorProvider provider, float decor)
{
BestDecorList values = null;
bool removed = false;
if (provider == null)
{
throw new ArgumentNullException("provider");
}
lock (decorProviders) {
if (decor < 0.0f && negativeDecor != null)
{
// Remove in hard mode, single = is intentional
if (removed = negativeDecor.Remove(provider))
{
Grid.Decor[cell] -= decor;
}
}
else
{
decorProviders.TryGetValue(prefabID, out values);
}
}
if (values != null)
{
int count;
// Lock the right things at the right times
lock (values) {
removed = values.RemoveDecorItem(decor, provider);
count = values.Count;
}
if (count < 1)
{
lock (decorProviders) {
decorProviders.Remove(prefabID);
}
}
}
return(removed);
}