Make CharacterInstance model

[difanta]

It is created in when a character is instantiated into a playable character, use this instead of Character directly. Characters remains for consultation in wiki (like monsters, characters, npcs) and 'creation from' porpouses

[difanta]

More thought is needed on this. There are two ways:

• Only Characters exists, possibility to copy-create a character with one click
• Characters exist as "Templates" they are never actually used and they can have multiple instances, if the root character changes abilities/levels up, all instances are updated

[difanta]

There are separate use cases for both:

• players usually want to use full characters, if they have the need to duplicate a character they usually want it detached from the original, eg. using the character in another campaign or one-shot, usually with a different level
• spawnables would seem better suited as instances but are actually characters, for example an instance of a bear, elemental, fiend and so on. The spawnable inherits from a character (monster in this case) and optionally has additional abilities and features, shared with the root spawning character (eg. druid with additional features than a bear)
• mobs are usually instances, you don't want each to be different and if you want different mobs you just create a few templates that are then reused. And if you modify the template you would like the change to be passed on to the instances

[difanta]

A solution could be that every time a new character is being created the user has two options:

1. copy create entirely from another character: the abilities, items, effects, properties all get duplicated and are not linked at all
2. create from and link to a character: copy only the properties and deep link the instance definition to the character's. The instance can act freely but its character definition is tied to the original and changes propagate

1 is the default way of creating a new character in standard ways, 2 is the default (or a popup choice is presented) when adding a character to a wiki.

[difanta]

In the end it is better to just use Characters and provide the feature to copy create a character. The handling of instance/character duality is honerous and is a small use-case. When a base character is modified all deriving characters are kept the same and if one desires to modify some of them he can just delete that character and re-create it from the updated base character.