23 lines
901 B
TypeScript
23 lines
901 B
TypeScript
import {
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controllerStrongholdTarget,
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physicalControllerCount,
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type TwoPlayerControllers,
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} from './two-player-controllers';
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/** GF9's shorter alliance target, also used by the staged three-member and
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* unlimited variants. The two-person four-stronghold rule still applies, as
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* do ordinary solo targets. Callers add any agreed increase afterward. */
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export function allianceVictoryTarget(
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seats: readonly string[],
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controllers: TwoPlayerControllers | null | undefined,
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allied: boolean,
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shortAlliance?: boolean,
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): 3 | 4 {
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if (shortAlliance !== undefined && typeof shortAlliance !== 'boolean')
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throw new TypeError('Choose whether the shorter alliance victory option is enabled.');
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const target = controllerStrongholdTarget(seats, controllers, allied);
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if (shortAlliance === true && allied && physicalControllerCount(seats, controllers) >= 3)
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return 3;
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return target;
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}
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