46 lines
2.3 KiB
TypeScript
46 lines
2.3 KiB
TypeScript
import type { Game } from './engine';
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import { homeworldContext } from './homeworld-game';
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import { homeworldPopulations } from './homeworld-population';
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type RicheseHomeworldContext = Pick<Game, 'advanced' | 'players' | 'homeworlds'>;
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export type RicheseHomeworldForcesInput = {
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enabled: boolean;
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reserves: number;
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amount: number;
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smuggler?: boolean;
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};
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export type RicheseHomeworldForcesQuote = { paid: number; physical: number; priced: number };
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export class RicheseHomeworldShipmentError extends Error {
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constructor(message: string) {
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super(message);
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this.name = 'RicheseHomeworldShipmentError';
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}
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}
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/** The printed High Richese modifier applies in either rules band, using only
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* native counters currently at Richese rather than foreign visitors. */
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export function richeseHomeworldShipmentEnabled(context: RicheseHomeworldContext, playerId: string): boolean {
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if (!context.homeworlds?.custody ||
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!context.players.some(player => player.id === playerId && player.faction === 'richese')) return false;
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return homeworldPopulations(homeworldContext(context), context.homeworlds.custody)
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.some(home => home.native === playerId && home.card === 'richese' && home.side === 'high');
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}
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const count = (value: unknown): value is number => Number.isSafeInteger(value) && (value as number) >= 0 && (value as number) <= 20;
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/** One priced No-Field marker plus the selected paid physical reserve forces.
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* The concealed value never supplies counters or changes this invoice. */
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export function quoteRicheseHomeworldForces(input: RicheseHomeworldForcesInput): RicheseHomeworldForcesQuote {
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const { enabled, reserves, amount, smuggler } = input;
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if (typeof enabled !== 'boolean' || !count(reserves) || !count(amount) ||
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(smuggler !== undefined && typeof smuggler !== 'boolean'))
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throw new RicheseHomeworldShipmentError('Choose zero to twenty physical reserve forces and a valid shipment source.');
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if (amount > 0 && !enabled)
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throw new RicheseHomeworldShipmentError('Paid forces alongside a No-Field require native Richese at High population.');
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const physical = amount + (smuggler ? 1 : 0);
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if (physical > reserves)
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throw new RicheseHomeworldShipmentError('The paid forces and any Smuggler force must fit the available physical reserves.');
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return { paid: amount, physical, priced: 1 + amount };
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}
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