/// <summary>
/// Sets value of an attribute. Note that the out value is a copy of the struct, so modifying it
/// does not modify the original attribute
/// </summary>
/// <param name="attribute">Attribute to set</param>
/// <param name="modifierType">How to modify the attribute</param>
/// <param name="value">Copy of newly modified attribute</param>
/// <returns>True, if attribute was found.</returns>
public bool UpdateAttributeModifiers(AttributeScriptableObject attribute, AttributeModifier modifier, out AttributeValue value)
{
// If dictionary is stale, rebuild it
var attributeCache = GetAttributeCache();
// We use a cache to store the index of the attribute in the list, so we don't
// have to iterate through it every time
if (attributeCache.TryGetValue(attribute, out var index))
{
// Get a copy of the attribute value struct
value = AttributeValues[index];
value.Modifier = value.Modifier.Combine(modifier);
// Structs are copied by value, so the modified attribute needs to be reassigned to the array
AttributeValues[index] = value;
return(true);
}
// No matching attribute found
value = new AttributeValue();
return(false);
}