cards_spec.txt

# basic operations

* create group of cards
    - private group: "owner" sees one side of the cards, others see the other side
* flipping card(s)
* shuffle group
* rotate cards
* action privileges?
* reset? (get all cards and put back in deck)

## done

* create group of cards
    - group types:
          * stack
          * normal (side-by-side)
          * overlapped
* add card(s) to group
* move group position
* move card(s) to another group
* move card(s) inside group

* deck is a predefined (hidden)stack
* game starts with all the cards available
* player can join game in progress
* player view points/ orientation?


--
TODO

---
API

Current state
  * sent by client on load

  only player who sent the command receives a representation of the game

Transfer card between groups
  * sent by client when card is dropped

  parameters:
  - player
  - source group
  - target group (optional - creates new group)
  - target index
  - card id
  - card position (if new group?)

  validations:
  - fails if card id is in source group
  - fails if target group doesn't exist
  - handles index > number of of cards on target group

  all players receive a representation of the command

Group style change
Reposition group
Shuffle group