rpg-mcp

import { describe, it, expect } from 'vitest'; import { SpatialEngine } from '../../src/engine/spatial/engine'; describe('SpatialEngine - Area of Effect', () => { const engine = new SpatialEngine(); describe('getDistance', () => { const p1 = { x: 0, y: 0 }; const p2 = { x: 3, y: 4 }; it('should calculate Euclidean distance', () => { expect(engine.getDistance(p1, p2, 'euclidean')).toBe(5); }); it('should calculate Manhattan distance', () => { expect(engine.getDistance(p1, p2, 'manhattan')).toBe(7); }); it('should calculate Chebyshev distance', () => { expect(engine.getDistance(p1, p2, 'chebyshev')).toBe(4); }); }); describe('getCircleTiles', () => { it('should return only center for radius 0', () => { const center = { x: 5, y: 5 }; const tiles = engine.getCircleTiles(center, 0); expect(tiles).toHaveLength(1); expect(tiles[0]).toEqual(center); }); it('should return 5 tiles for radius 1 (cross shape)', () => { // Radius 1 means distance <= 1. // (5,5) -> dist 0 // (5,4), (5,6), (4,5), (6,5) -> dist 1 // Diagonals (4,4) -> dist sqrt(2) ~ 1.414 > 1 const center = { x: 5, y: 5 }; const tiles = engine.getCircleTiles(center, 1); expect(tiles).toHaveLength(5); }); it('should include diagonals for radius 1.5', () => { // Radius 1.5 covers diagonals (1.414 < 1.5) // Should be 3x3 square = 9 tiles const center = { x: 5, y: 5 }; const tiles = engine.getCircleTiles(center, 1.5); expect(tiles).toHaveLength(9); }); }); describe('getConeTiles', () => { it('should return tiles in a 90-degree cone facing East', () => { // Origin (0,0), Direction (1,0), Length 2 // Should include (0,0), (1,0), (2,0), (1,-1), (1,1), (2,-1), (2,1), (2,-2), (2,2) // Wait, cone logic can be complex. // Simple logic: Angle between vector(origin->tile) and direction vector <= 45 degrees (half angle of 90). // And distance <= length. const origin = { x: 0, y: 0 }; const direction = { x: 1, y: 0 }; const tiles = engine.getConeTiles(origin, direction, 2, 90); // (0,0) - origin // (1,0) - dist 1, angle 0 // (2,0) - dist 2, angle 0 // (1,1) - dist 1.41, angle 45 -> included // (1,-1) - dist 1.41, angle 45 -> included // (2,1) - dist 2.23 > 2? No, Euclidean dist. // (2,2) - dist 2.82 > 2. // Let's verify specific tiles const hasTile = (x: number, y: number) => tiles.some(t => t.x === x && t.y === y); expect(hasTile(0, 0)).toBe(true); expect(hasTile(1, 0)).toBe(true); expect(hasTile(2, 0)).toBe(true); expect(hasTile(1, 1)).toBe(true); expect(hasTile(1, -1)).toBe(true); // (2,2) is dist 2.82, so excluded by length 2 expect(hasTile(2, 2)).toBe(false); }); }); describe('getLineTiles', () => { it('should return tiles on a horizontal line', () => { const start = { x: 0, y: 0 }; const end = { x: 3, y: 0 }; const tiles = engine.getLineTiles(start, end); expect(tiles).toHaveLength(4); // 0,0 to 3,0 inclusive expect(tiles).toContainEqual({ x: 0, y: 0 }); expect(tiles).toContainEqual({ x: 3, y: 0 }); }); it('should return tiles on a diagonal line', () => { const start = { x: 0, y: 0 }; const end = { x: 2, y: 2 }; const tiles = engine.getLineTiles(start, end); // 0,0; 1,1; 2,2 expect(tiles).toHaveLength(3); expect(tiles).toContainEqual({ x: 1, y: 1 }); }); }); });