48 lines
1.7 KiB
TypeScript
48 lines
1.7 KiB
TypeScript
import {
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spawnMatchesDifficulty,
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type MobPackDefinition,
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type StaticMobSpawnDefinition,
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} from "./mobPopulation";
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import type { DungeonEncounterSpawnGroupDefinition } from "./dungeonTypes";
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export function activeEncounterSpawnGroupSpawns(
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groups: readonly DungeonEncounterSpawnGroupDefinition[],
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activeGroupIds: readonly string[],
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difficultyMask: number,
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existingSpawns: readonly StaticMobSpawnDefinition[] = [],
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): readonly StaticMobSpawnDefinition[] {
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const active = new Set(activeGroupIds);
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const existing = new Set(existingSpawns.map((spawn) => spawn.id));
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const included = new Set<string>();
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return groups
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.filter((group) => active.has(group.id))
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.flatMap((group) => group.spawns)
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.filter((spawn) => {
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if (existing.has(spawn.id) || included.has(spawn.id)) return false;
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if (!spawnMatchesDifficulty(spawn.spawnMask, difficultyMask)) return false;
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included.add(spawn.id);
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return true;
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});
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}
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export function suppressCompletedDungeonPopulation(
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staticSpawns: readonly StaticMobSpawnDefinition[],
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roamingPacks: readonly MobPackDefinition[],
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completedObjectiveIds: readonly string[],
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): {
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readonly staticSpawns: readonly StaticMobSpawnDefinition[];
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readonly roamingPacks: readonly MobPackDefinition[];
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} {
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if (!completedObjectiveIds.length) return { staticSpawns, roamingPacks };
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const completed = new Set(completedObjectiveIds);
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return {
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staticSpawns: staticSpawns.filter((spawn) => !completed.has(spawn.id)),
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roamingPacks: roamingPacks.flatMap((pack) => {
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const members = pack.members.filter(
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(member) => !completed.has(`${pack.id}:${member.id}`),
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);
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return members.length ? [{ ...pack, members }] : [];
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}),
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};
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}
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