twenty-one/shared/game/cards.ts

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interface SpecialCardMeta {
type: "single-use" | "permanent"
description: string
weight: number
minPlayers: number
isAllowedInFirstRound: boolean
}
export type SpecialCardId =
| "return-last-opponent" | "return-last-own" | "increase-target-by-2" | "decrease-target-by-2" | "next-round-covert" | "double-draw" | "force-hit"
| "end-game"
export const specialCardsMeta: Record<SpecialCardId, SpecialCardMeta> = {
"return-last-opponent": {
type: "single-use",
description: "Return the last card your opponent drew to the stack.",
weight: 5,
minPlayers: 0,
isAllowedInFirstRound: false
},
"return-last-own": {
type: "single-use",
description: "Return the last card you drew to the stack.",
weight: 4,
minPlayers: 0,
isAllowedInFirstRound: false
},
"increase-target-by-2": {
type: "permanent",
description: "Increases the target card value by two.",
weight: 1,
minPlayers: 0,
isAllowedInFirstRound: true
},
"decrease-target-by-2": {
type: "permanent",
description: "Decreases the target card value by two.",
weight: 1,
minPlayers: 0,
isAllowedInFirstRound: true
},
"next-round-covert": {
type: "permanent",
description: "The next card youll draw will be covert.",
weight: 2,
minPlayers: 0,
isAllowedInFirstRound: true
},
"double-draw": {
type: "permanent",
description: "You will draw two number cards at once.",
weight: 5,
minPlayers: 0,
isAllowedInFirstRound: true
},
"force-hit": {
type: "permanent",
description: "Your opponent is not allowed to stay",
weight: 3,
minPlayers: 0,
isAllowedInFirstRound: true
},
"end-game": {
type: "permanent",
description: "The game ends after everyone had another turn.",
weight: 1000,
minPlayers: 3,
isAllowedInFirstRound: true
}
}
export const specialCardIds = Object.keys(specialCardsMeta) as SpecialCardId[]
export function createWeightedSpecialCardIdList(ids: SpecialCardId[]) {
const list: SpecialCardId[] = []
for (const id of ids) {
const meta = specialCardsMeta[id]
for (let i = 0; i < meta.weight; i++) {
list.push(id)
}
}
return list
}
export function getActiveSpecialCardIds(playerCount: number) {
return specialCardIds.filter(id => playerCount >= specialCardsMeta[id].minPlayers)
}