test: add failing tests for social interaction system
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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import { describe, it, expect } from 'vitest';
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import { World } from '../../ecs/World.js';
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import { socialSystem } from '../socialSystem.js';
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import type { Position, Needs, Movement, NPCBrain, SocialState, EntityId } from '@dflike/shared';
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import {
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AWARENESS_RADIUS,
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HUNGER_THRESHOLD,
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ENERGY_THRESHOLD,
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SOCIAL_GLOBAL_COOLDOWN,
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SOCIAL_PAIR_COOLDOWN,
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Direction,
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} from '@dflike/shared';
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function createNPC(
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world: World, x: number, y: number,
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opts?: { hunger?: number; energy?: number; goal?: string; walking?: boolean },
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): EntityId {
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const e = world.createEntity();
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world.addComponent<Position>(e, 'position', { x, y });
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world.addComponent<Needs>(e, 'needs', {
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hunger: opts?.hunger ?? 80,
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energy: opts?.energy ?? 80,
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});
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world.addComponent<Movement>(e, 'movement', {
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state: opts?.walking ? 'walking' : 'idle',
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target: opts?.walking ? { x: x + 5, y } : null,
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path: opts?.walking ? [{ x: x + 1, y }, { x: x + 2, y }] : [],
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direction: 0,
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moveProgress: 0,
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});
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world.addComponent<NPCBrain>(e, 'npcBrain', {
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currentGoal: (opts?.goal as any) ?? 'wander',
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goalQueue: [],
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});
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world.addComponent<SocialState>(e, 'socialState', {
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phase: 'none',
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partnerId: null,
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phaseTimer: 0,
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outcome: null,
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globalCooldown: 0,
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pairCooldowns: new Map(),
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});
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return e;
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}
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describe('socialSystem', () => {
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describe('proximity detection', () => {
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it('initiates interaction when two idle NPCs are within awareness radius', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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socialSystem(world);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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expect(sa.phase).toBe('facing');
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expect(sa.partnerId).toBe(b);
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expect(sb.phase).toBe('facing');
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expect(sb.partnerId).toBe(a);
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});
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it('does not initiate when NPCs are outside awareness radius', () => {
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const world = new World();
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const a = createNPC(world, 0, 0);
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const b = createNPC(world, 10, 0);
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socialSystem(world);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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expect(sa.phase).toBe('none');
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expect(sb.phase).toBe('none');
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});
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it('skips player-controlled entities', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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world.addComponent(b, 'playerControlled', { playerId: 'p1', mode: 'avatar' });
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socialSystem(world);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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expect(sa.phase).toBe('none');
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});
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});
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describe('target rejection', () => {
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it('rejects target on eat goal with low hunger', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5, { goal: 'eat', hunger: HUNGER_THRESHOLD - 5 });
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socialSystem(world);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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expect(sa.phase).toBe('none');
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expect(sb.phase).toBe('none');
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});
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it('rejects target on rest goal with low energy', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5, { goal: 'rest', energy: ENERGY_THRESHOLD - 5 });
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socialSystem(world);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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expect(sa.phase).toBe('none');
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expect(sb.phase).toBe('none');
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});
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it('allows target on eat goal when hunger is not critical', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5, { goal: 'eat', hunger: HUNGER_THRESHOLD + 5 });
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socialSystem(world);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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expect(sa.phase).toBe('facing');
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expect(sb.phase).toBe('facing');
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});
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});
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describe('cooldowns', () => {
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it('respects global cooldown', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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sa.globalCooldown = 10;
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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expect(saAfter.phase).toBe('none');
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});
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it('decrements global cooldown each tick', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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sa.globalCooldown = 10;
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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expect(saAfter.globalCooldown).toBe(9);
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});
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it('respects pair cooldown', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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sa.pairCooldowns.set(b, 10);
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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expect(saAfter.phase).toBe('none');
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});
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it('decrements pair cooldowns and removes expired', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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const c = createNPC(world, 20, 20); // far away, just for a second pair cooldown entry
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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sa.pairCooldowns.set(b, 1);
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sa.pairCooldowns.set(c, 5);
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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expect(saAfter.pairCooldowns.has(b)).toBe(false);
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expect(saAfter.pairCooldowns.get(c)).toBe(4);
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});
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});
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describe('phase transitions', () => {
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it('facing -> pausing when timer expires', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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sa.phase = 'facing';
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sa.partnerId = b;
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sa.phaseTimer = 1;
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sb.phase = 'facing';
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sb.partnerId = a;
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sb.phaseTimer = 1;
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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const sbAfter = world.getComponent<SocialState>(b, 'socialState')!;
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expect(saAfter.phase).toBe('pausing');
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expect(sbAfter.phase).toBe('pausing');
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});
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it('pausing -> emoting rolls outcome', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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sa.phase = 'pausing';
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sa.partnerId = b;
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sa.phaseTimer = 1;
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sb.phase = 'pausing';
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sb.partnerId = a;
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sb.phaseTimer = 1;
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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const sbAfter = world.getComponent<SocialState>(b, 'socialState')!;
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expect(saAfter.phase).toBe('emoting');
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expect(['positive', 'negative']).toContain(saAfter.outcome);
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expect(sbAfter.outcome).toBe(saAfter.outcome);
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});
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it('emoting -> none sets cooldowns', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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sa.phase = 'emoting';
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sa.partnerId = b;
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sa.phaseTimer = 1;
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sb.phase = 'emoting';
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sb.partnerId = a;
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sb.phaseTimer = 1;
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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const sbAfter = world.getComponent<SocialState>(b, 'socialState')!;
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expect(saAfter.phase).toBe('none');
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expect(saAfter.globalCooldown).toBe(SOCIAL_GLOBAL_COOLDOWN);
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expect(saAfter.pairCooldowns.get(b)).toBe(SOCIAL_PAIR_COOLDOWN);
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expect(sbAfter.phase).toBe('none');
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expect(sbAfter.globalCooldown).toBe(SOCIAL_GLOBAL_COOLDOWN);
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expect(sbAfter.pairCooldowns.get(a)).toBe(SOCIAL_PAIR_COOLDOWN);
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});
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});
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describe('direction facing', () => {
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it('NPCs face each other', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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socialSystem(world);
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const ma = world.getComponent<Movement>(a, 'movement')!;
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const mb = world.getComponent<Movement>(b, 'movement')!;
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expect(ma.direction).toBe(Direction.RIGHT); // 3
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expect(mb.direction).toBe(Direction.LEFT); // 1
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});
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});
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describe('conflict resolution', () => {
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it('first initiator claims target; second NPC cannot claim same target', () => {
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const world = new World();
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const a = createNPC(world, 0, 0);
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const b = createNPC(world, 3, 0);
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const c = createNPC(world, 5, 0);
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socialSystem(world);
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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const sc = world.getComponent<SocialState>(c, 'socialState')!;
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// b is within range of both a and c; only one pair should form
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const bInteracting = sb.phase === 'facing';
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if (bInteracting) {
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// b is paired with exactly one of a or c
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const bPartner = sb.partnerId;
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expect([a, c]).toContain(bPartner);
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// the other NPC should remain in 'none'
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const other = bPartner === a ? c : a;
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const sOther = world.getComponent<SocialState>(other, 'socialState')!;
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expect(sOther.phase).toBe('none');
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}
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// at most one pair formed
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const interacting = [sa, sb, sc].filter(s => s.phase === 'facing');
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expect(interacting.length).toBeLessThanOrEqual(2);
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});
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});
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describe('partner despawn', () => {
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it('resets remaining NPC when partner is removed from world', () => {
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const world = new World();
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const a = createNPC(world, 5, 5);
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const b = createNPC(world, 8, 5);
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// Set up an active interaction
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const sa = world.getComponent<SocialState>(a, 'socialState')!;
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const sb = world.getComponent<SocialState>(b, 'socialState')!;
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sa.phase = 'pausing';
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sa.partnerId = b;
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sa.phaseTimer = 5;
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sb.phase = 'pausing';
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sb.partnerId = a;
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sb.phaseTimer = 5;
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// Remove partner b from the world
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world.removeEntity(b);
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socialSystem(world);
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const saAfter = world.getComponent<SocialState>(a, 'socialState')!;
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expect(saAfter.phase).toBe('none');
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expect(saAfter.partnerId).toBeNull();
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});
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});
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});
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