feat: port scenario action effects

packages/logic/src/scenario/index.ts

@@ -1,2 +1,3 @@
 export * from './types.js';
 export * from './parseScenario.js';
+export * from './scenarioEffect.js';

packages/logic/src/scenario/parseScenario.ts

@@ -13,6 +13,7 @@ import type {
     ScenarioNation,
     ScenarioStatBlock,
 } from './types.js';
+import { normalizeScenarioEffect } from './scenarioEffect.js';
 
 type UnknownRecord = Record<string, unknown>;
 
@@ -45,12 +46,9 @@ const parseScenarioEnvironment = (mapConfig: UnknownRecord, constConfig: Unknown
     const merged = { ...mapConfig, ...constConfig };
     const mapName = asString(merged.mapName, 'che');
     const unitSet = asString(merged.unitSet, 'che');
-    const scenarioEffect =
-        typeof merged.scenarioEffect === 'string' || merged.scenarioEffect === null ? merged.scenarioEffect : undefined;
-
     const result: ScenarioEnvironment = { mapName, unitSet };
-    if (scenarioEffect !== undefined) {
-        result.scenarioEffect = scenarioEffect;
+    if (Object.hasOwn(merged, 'scenarioEffect')) {
+        result.scenarioEffect = normalizeScenarioEffect(merged.scenarioEffect);
     }
     return result;
 };

packages/logic/src/scenario/scenarioEffect.ts

@@ -0,0 +1,31 @@
+export const SCENARIO_EFFECT_KEYS = [
+    'event_UnlimitedDefenceThresholdChange',
+    'event_StrongAttacker',
+    'event_MoreEffect',
+] as const;
+
+export type ScenarioEffectKey = (typeof SCENARIO_EFFECT_KEYS)[number];
+
+const DEFENCE_TRAIN_PENALTY_WAIVER_EFFECTS = new Set<ScenarioEffectKey>([
+    'event_UnlimitedDefenceThresholdChange',
+    'event_StrongAttacker',
+    'event_MoreEffect',
+]);
+
+export const isScenarioEffectKey = (value: string): value is ScenarioEffectKey =>
+    SCENARIO_EFFECT_KEYS.includes(value as ScenarioEffectKey);
+
+export const normalizeScenarioEffect = (value: unknown): ScenarioEffectKey | null => {
+    if (value === undefined || value === null || value === '' || value === 'None') {
+        return null;
+    }
+    if (typeof value === 'string' && isScenarioEffectKey(value)) {
+        return value;
+    }
+    throw new Error(`Unknown scenario effect: ${String(value)}`);
+};
+
+export const isDefenceTrainPenaltyWaivedByScenarioEffect = (value: string | null | undefined): boolean => {
+    const effect = normalizeScenarioEffect(value);
+    return effect !== null && DEFENCE_TRAIN_PENALTY_WAIVER_EFFECTS.has(effect);
+};

packages/logic/src/scenario/types.ts

@@ -16,7 +16,7 @@ export interface ScenarioDefaults {
 export interface ScenarioEnvironment {
     mapName: string;
     unitSet: string;
-    scenarioEffect?: string | null;
+    scenarioEffect?: ScenarioEffectKey | null;
 }
 
 export interface ScenarioConfig {
@@ -86,3 +86,4 @@ export interface ScenarioDefinition {
     initialEvents: unknown[];
     ignoreDefaultEvents: boolean;
 }
+import type { ScenarioEffectKey } from './scenarioEffect.js';