Item List
The ItemList is a Feature that can supply other Features with Items.
It is closely related to the Inventory.
Requirements
- Supply a fresh instance of any item when requested
- Be able to inject all features in these items.
Usage
With a full game, all you need to do is store a reference to the ItemList in the Feature you want to use it in.
export class MyFeature {
_itemList: ItemList
initialize(features: Features) {
this._itemList = features.itemList;
}
update(delta: number) {
const moneyPouch: MoneyPouch = this._itemList.moneyPouch;
}
}
Or you can set it up from scratch
const itemList = new ItemList();
const wallet = new IgtWallet([CurrencyType.Money]);
itemList.initialize({
wallet: wallet,
})
const moneyPouch = itemList.moneyPouch;
moneyPouch.consume();
wallet.money // 10
Implementation
All items are implemented as getters. This keeps the implementation clean.
export class ItemList extends Feature {
// Overridden in the initialize
_features = undefined as unknown as Features
constructor() {
super('item-list');
}
initialize(features: Features) {
super.initialize(features);
// Store all the features in case we need them
this._features = features;
}
get moneyPouch(): MoneyPouch {
// The ItemList is responsible for injecting the Wallet
return new MoneyPouch(this._features.wallet)
}
}
danger
The name of the items' getter, should be exactly the same as the value of the ItemId. That is how items are loaded.