root
83 lines
2.8 KiB
TypeScript
83 lines
2.8 KiB
TypeScript
import { describe, it, expect } from 'vitest';
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import { World } from '../../ecs/World.js';
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import { getEffectiveStat } from '../statHelpers.js';
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import type { Stats, StatModifiers } from '@dflike/shared';
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function addStats(world: World, entity: number, overrides: Partial<Stats> = {}): void {
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const base: Stats = {
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strength: 10, dexterity: 10, constitution: 10, intelligence: 10, perception: 10,
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sociability: 10, courage: 10, curiosity: 10, empathy: 10, temperament: 10,
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...overrides,
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};
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world.addComponent<Stats>(entity, 'stats', base);
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}
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describe('getEffectiveStat', () => {
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it('returns base stat when no modifiers', () => {
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const world = new World();
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const e = world.createEntity();
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addStats(world, e, { strength: 14 });
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expect(getEffectiveStat(world, e, 'strength')).toBe(14);
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});
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it('adds positive modifier', () => {
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const world = new World();
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const e = world.createEntity();
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addStats(world, e, { empathy: 12 });
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world.addComponent<StatModifiers>(e, 'statModifiers', {
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modifiers: [{ stat: 'empathy', value: 2, remaining: 50 }],
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});
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expect(getEffectiveStat(world, e, 'empathy')).toBe(14);
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});
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it('adds negative modifier', () => {
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const world = new World();
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const e = world.createEntity();
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addStats(world, e, { intelligence: 10 });
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world.addComponent<StatModifiers>(e, 'statModifiers', {
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modifiers: [{ stat: 'intelligence', value: -2, remaining: 50 }],
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});
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expect(getEffectiveStat(world, e, 'intelligence')).toBe(8);
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});
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it('clamps to minimum 3', () => {
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const world = new World();
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const e = world.createEntity();
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addStats(world, e, { dexterity: 4 });
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world.addComponent<StatModifiers>(e, 'statModifiers', {
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modifiers: [{ stat: 'dexterity', value: -5, remaining: 50 }],
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});
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expect(getEffectiveStat(world, e, 'dexterity')).toBe(3);
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});
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it('clamps to maximum 18', () => {
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const world = new World();
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const e = world.createEntity();
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addStats(world, e, { strength: 17 });
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world.addComponent<StatModifiers>(e, 'statModifiers', {
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modifiers: [{ stat: 'strength', value: 5, remaining: 50 }],
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});
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expect(getEffectiveStat(world, e, 'strength')).toBe(18);
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});
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it('sums multiple modifiers for same stat', () => {
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const world = new World();
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const e = world.createEntity();
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addStats(world, e, { sociability: 10 });
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world.addComponent<StatModifiers>(e, 'statModifiers', {
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modifiers: [
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{ stat: 'sociability', value: 2, remaining: 50 },
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{ stat: 'sociability', value: -1, remaining: 30 },
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],
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});
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expect(getEffectiveStat(world, e, 'sociability')).toBe(11);
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});
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it('floors float base stats to integer', () => {
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const world = new World();
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const e = world.createEntity();
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addStats(world, e, { courage: 10.7 });
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expect(getEffectiveStat(world, e, 'courage')).toBe(10);
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});
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});
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