Amuse

SketchSystems.spec

Amuse
  No Wallet
    Give wallet to player -> Got Wallet
  Got Wallet
    Put bonus coins in wallet -> Got Wallet
    Put gained coins in wallet -> Got Wallet
    Take coins out of wallet -> Got Wallet
    Deposit coins in wallet -> Got Wallet
    Withdraw coins from wallet -> Got Wallet
    Exchange wallet -> Exchanged Wallet
  Exchanged Wallet

SketchSystems_prototype.js

function render(model){
  let current_state_name = model.active_states[0].name;
  return $("h1",
           {style: {color: "darkBlue"}},
           `The current state is: ${current_state_name}`);
}