hypercross
d554d6bde1
Replace the per-shape tile geometries with @tts/mesh extrusion, honoring the tile type and stretch aspect ratio. Add extrudeShapeParts so the caps carry the texture while the walls are solid white, matching TTS tinting. Fix bottom-face UVs to mirror horizontally and make wall UVs inherit the front mapping independent of z.
43 lines
1.7 KiB
TypeScript
43 lines
1.7 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import { wallFaces } from './walls.js';
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import { rectShape } from './shapes.js';
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describe('wallFaces', () => {
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it('builds a quad strip around a rectangle', () => {
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const wall = wallFaces(rectShape(2, 2), 1);
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// 4 outline points * 2 vertices each.
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expect(wall.positions.length / 3).toBe(8);
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expect(wall.indices.length).toBe(4 * 6); // 4 quads * 2 triangles
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});
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it('has outward-facing normals', () => {
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const wall = wallFaces(rectShape(2, 2), 1);
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// Bottom edge (from (-1,-1) to (1,-1)) normal should point -Y.
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// First two vertices belong to the first outline point (-1,-1).
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const n = wall.normals.slice(0, 3);
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expect(n[0]).toBeCloseTo(0, 5);
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expect(n[1]).toBeCloseTo(-1, 5);
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expect(n[2]).toBeCloseTo(0, 5);
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});
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it('spans from z=0 to z=height', () => {
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const wall = wallFaces(rectShape(2, 2), 3);
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// First vertex is bottom (z=0), second is top (z=3).
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expect(wall.positions[2]).toBe(0);
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expect(wall.positions[5]).toBe(3);
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});
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it('uses planar UVs from the top face mapping, independent of z', () => {
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const wall = wallFaces(rectShape(2, 2), 2);
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// First outline point is (-1,-1) -> planar UV (0, 0).
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expect(wall.uvs[0]).toBeCloseTo(0, 5);
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expect(wall.uvs[1]).toBeCloseTo(0, 5);
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// The bottom and top vertices of the same outline point share a UV,
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// so the texture is constant down the wall regardless of z.
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expect(wall.uvs[2]).toBeCloseTo(wall.uvs[0]!, 5);
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expect(wall.uvs[3]).toBeCloseTo(wall.uvs[1]!, 5);
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// Third outline point is (1, 1) -> planar UV (1, 1).
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expect(wall.uvs[8]).toBeCloseTo(1, 5);
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expect(wall.uvs[9]).toBeCloseTo(1, 5);
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});
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}); |