Remove events system entirely

The random events (GPU shortages, regulatory hearings, PR crises, etc.)
added interruption without enough gameplay value. Removed all event
types, definitions (~1800 lines of event data), the event processor,
EventModal UI, store actions, and tick integration. Updated docs to
reflect the removal. Bundle size drops ~47kB.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/game-engine/src/index.ts

@@ -1,10 +1,9 @@
 export { GameEngine } from './engine';
-export { processTick, setEventDefinitions, setAchievementDefinitions } from './tick';
+export { processTick, setAchievementDefinitions } from './tick';
 export type { TickNotification } from './tick';
 export { getAvailableResearch, getResearchNode } from './systems/researchSystem';
 export { canRaiseFunding, getNextFundingRound, computeValuation } from './systems/fundingSystem';
 export { TECH_TREE } from './data/techTree';
 export { INITIAL_RIVALS } from './data/competitors';
 export { KEY_HIRE_POOL } from './data/keyHires';
-export { EVENT_DEFINITIONS } from './data/events';
 export { ACHIEVEMENT_DEFINITIONS } from './data/achievements';

packages/game-engine/src/systems/eventSystem.ts

@@ -1,118 +0,0 @@
-import type { GameState, EventState, ActiveEvent, EventDefinition, EventCondition } from '@ai-tycoon/shared';
-import { uuid } from '@ai-tycoon/shared';
-
-export interface EventTickResult {
-  events: EventState;
-  newEvents: ActiveEvent[];
-}
-
-export function processEvents(
-  state: GameState,
-  definitions: EventDefinition[],
-): EventTickResult {
-  const tick = state.meta.tickCount;
-  const events = { ...state.events };
-  const newEvents: ActiveEvent[] = [];
-
-  // Remove expired events (auto-choose default)
-  const stillActive: ActiveEvent[] = [];
-  for (const event of events.activeEvents) {
-    if (tick >= event.expiresAtTick) {
-      events.eventHistory = [
-        ...events.eventHistory,
-        {
-          eventId: event.eventId,
-          instanceId: event.instanceId,
-          title: event.title,
-          category: event.category,
-          tick,
-          chosenOptionIndex: event.defaultChoiceIndex,
-        },
-      ];
-    } else {
-      stillActive.push(event);
-    }
-  }
-  events.activeEvents = stillActive;
-
-  if (events.eventHistory.length > 50) {
-    events.eventHistory = events.eventHistory.slice(-50);
-  }
-
-  // Only try to fire a new event every 30 ticks, and max 1 active at a time
-  if (tick % 30 !== 0 || events.activeEvents.length > 0) {
-    return { events, newEvents };
-  }
-
-  const eraOrder = ['startup', 'scaleup', 'bigtech', 'agi'];
-  const currentEraIdx = eraOrder.indexOf(state.meta.currentEra);
-
-  const eligible = definitions.filter(def => {
-    if (!def.eras.some(e => eraOrder.indexOf(e) <= currentEraIdx)) return false;
-    const occ = events.eventOccurrences[def.id] ?? 0;
-    if (occ >= def.maxOccurrences) return false;
-    const cooldownEnd = events.eventCooldowns[def.id] ?? 0;
-    if (tick < cooldownEnd) return false;
-    if (def.prerequisites.some(p => !state.research.completedResearch.includes(p))) return false;
-    if (!def.conditions.every(c => evaluateCondition(state, c))) return false;
-    return true;
-  });
-
-  if (eligible.length === 0) return { events, newEvents };
-
-  const totalWeight = eligible.reduce((s, d) => s + d.weight, 0);
-  let roll = Math.random() * totalWeight;
-  let chosen: EventDefinition | null = null;
-  for (const def of eligible) {
-    roll -= def.weight;
-    if (roll <= 0) { chosen = def; break; }
-  }
-  if (!chosen) return { events, newEvents };
-
-  // Only fire with 30% probability per check to space events out
-  if (Math.random() > 0.3) return { events, newEvents };
-
-  const activeEvent: ActiveEvent = {
-    eventId: chosen.id,
-    instanceId: uuid(),
-    triggeredAtTick: tick,
-    expiresAtTick: tick + chosen.expiryTicks,
-    title: chosen.title,
-    description: chosen.descriptionTemplate,
-    category: chosen.category,
-    choices: chosen.choices,
-    defaultChoiceIndex: chosen.defaultChoiceIndex,
-  };
-
-  events.activeEvents = [...events.activeEvents, activeEvent];
-  events.eventCooldowns = { ...events.eventCooldowns, [chosen.id]: tick + chosen.cooldownTicks };
-  events.eventOccurrences = {
-    ...events.eventOccurrences,
-    [chosen.id]: (events.eventOccurrences[chosen.id] ?? 0) + 1,
-  };
-  newEvents.push(activeEvent);
-
-  return { events, newEvents };
-}
-
-function evaluateCondition(state: GameState, condition: EventCondition): boolean {
-  const value = getNestedValue(state, condition.field);
-  if (value === undefined) return false;
-  switch (condition.operator) {
-    case 'gt': return value > condition.value;
-    case 'lt': return value < condition.value;
-    case 'gte': return value >= condition.value;
-    case 'lte': return value <= condition.value;
-    case 'eq': return value === condition.value;
-  }
-}
-
-function getNestedValue(obj: object, path: string): number | undefined {
-  const parts = path.split('.');
-  let current: unknown = obj;
-  for (const part of parts) {
-    if (current == null || typeof current !== 'object') return undefined;
-    current = (current as Record<string, unknown>)[part];
-  }
-  return typeof current === 'number' ? current : undefined;
-}

packages/game-engine/src/tick.ts

@@ -1,4 +1,4 @@
-import type { GameState, EventDefinition, AchievementDefinition } from '@ai-tycoon/shared';
+import type { GameState, AchievementDefinition } from '@ai-tycoon/shared';
 import { processEconomy } from './systems/economySystem';
 import { processInfrastructure } from './systems/infrastructureSystem';
 import { processCompute } from './systems/computeSystem';
@@ -7,7 +7,6 @@ import { processModels } from './systems/modelSystem';
 import { processMarket } from './systems/marketSystem';
 import { processReputation } from './systems/reputationSystem';
 import { processTalent } from './systems/talentSystem';
-import { processEvents } from './systems/eventSystem';
 import { processCompetitors } from './systems/competitorSystem';
 import { processData } from './systems/dataSystem';
 import { checkEraTransition } from './systems/eraSystem';
@@ -25,13 +24,8 @@ export interface TickNotification {
   type: 'info' | 'success' | 'warning' | 'danger';
 }
 
-let cachedEventDefs: EventDefinition[] | null = null;
 let cachedAchievementDefs: AchievementDefinition[] | null = null;
 
-export function setEventDefinitions(defs: EventDefinition[]) {
-  cachedEventDefs = defs;
-}
-
 export function setAchievementDefinitions(defs: AchievementDefinition[]) {
   cachedAchievementDefs = defs;
 }
@@ -88,18 +82,6 @@ export function processTick(state: GameState): Partial<GameState> {
   const data = processData(stateWithTalent);
   const competitors = processCompetitors(stateWithTalent);
 
-  const eventResult = cachedEventDefs
-    ? processEvents(stateWithTalent, cachedEventDefs)
-    : { events: state.events, newEvents: [] };
-
-  for (const evt of eventResult.newEvents) {
-    notifications.push({
-      title: evt.title,
-      message: evt.description,
-      type: evt.category === 'regulatory' ? 'warning' : 'info',
-    });
-  }
-
   const tickCount = state.meta.tickCount + 1;
 
   let meta = {
@@ -137,7 +119,6 @@ export function processTick(state: GameState): Partial<GameState> {
     reputation,
     data,
     competitors,
-    events: eventResult.events,
     achievements: state.achievements,
   };
 
@@ -165,7 +146,6 @@ export function processTick(state: GameState): Partial<GameState> {
     reputation,
     data,
     competitors,
-    events: eventResult.events,
     achievements: achievementResult.achievements,
   };
 

packages/shared/src/constants/gameBalance.ts

@@ -7,7 +7,6 @@ export const FAST_FORWARD_BATCH_SIZE = 100;
 export const AUTO_SAVE_INTERVAL_TICKS = 60;
 export const FINANCIAL_SNAPSHOT_INTERVAL = 60;
 export const MAX_FINANCIAL_HISTORY = 1000;
-export const MAX_EVENT_HISTORY = 50;
 export const MAX_REPUTATION_HISTORY = 500;
 
 export const STARTING_MONEY = 50_000;

packages/shared/src/index.ts

@@ -9,7 +9,6 @@ export * from './types/competitors';
 export * from './types/talent';
 export * from './types/data';
 export * from './types/reputation';
-export * from './types/events';
 export * from './types/achievements';
 export * from './utils/formatting';
 export * from './constants/gameBalance';

packages/shared/src/types/events.ts

@@ -1,74 +0,0 @@
-import type { Era } from './gameState';
-
-export interface EventState {
-  activeEvents: ActiveEvent[];
-  eventHistory: EventHistoryEntry[];
-  eventCooldowns: Record<string, number>;
-  eventOccurrences: Record<string, number>;
-}
-
-export interface ActiveEvent {
-  eventId: string;
-  instanceId: string;
-  triggeredAtTick: number;
-  expiresAtTick: number;
-  title: string;
-  description: string;
-  category: EventCategory;
-  choices: EventChoice[];
-  defaultChoiceIndex: number;
-}
-
-export type EventCategory = 'industry' | 'regulatory' | 'pr' | 'internal' | 'market';
-
-export interface EventChoice {
-  label: string;
-  description: string;
-  consequences: EventConsequence[];
-}
-
-export interface EventConsequence {
-  type: 'money' | 'reputation' | 'compute' | 'talent' | 'research_speed'
-    | 'regulation' | 'competitor' | 'unlock' | 'lock' | 'chain_event';
-  value: number;
-  target?: string;
-  delay?: number;
-}
-
-export interface EventHistoryEntry {
-  eventId: string;
-  instanceId: string;
-  title: string;
-  category: EventCategory;
-  tick: number;
-  chosenOptionIndex: number;
-}
-
-export interface EventDefinition {
-  id: string;
-  title: string;
-  descriptionTemplate: string;
-  category: EventCategory;
-  eras: Era[];
-  weight: number;
-  cooldownTicks: number;
-  maxOccurrences: number;
-  prerequisites: string[];
-  conditions: EventCondition[];
-  choices: EventChoice[];
-  defaultChoiceIndex: number;
-  expiryTicks: number;
-}
-
-export interface EventCondition {
-  field: string;
-  operator: 'gt' | 'lt' | 'gte' | 'lte' | 'eq';
-  value: number;
-}
-
-export const INITIAL_EVENTS: EventState = {
-  activeEvents: [],
-  eventHistory: [],
-  eventCooldowns: {},
-  eventOccurrences: {},
-};

packages/shared/src/types/gameState.ts

@@ -8,7 +8,6 @@ import type { CompetitorState } from './competitors';
 import type { TalentState } from './talent';
 import type { DataState } from './data';
 import type { ReputationState } from './reputation';
-import type { EventState } from './events';
 import type { AchievementState } from './achievements';
 
 export interface GameState {
@@ -23,7 +22,6 @@ export interface GameState {
   talent: TalentState;
   data: DataState;
   reputation: ReputationState;
-  events: EventState;
   achievements: AchievementState;
 }