Added AABBUtils and Vector3Utils.ceil

Author: sweetniamhy

libraries/math/__mocks__/minecraft-server.ts

@@ -0,0 +1,26 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+import type { Vector3 } from '@minecraft/server';
+
+export class BlockVolume {
+    constructor(from: Vector3, to: Vector3) {
+        this.from = from;
+        this.to = to;
+
+        this.from.x = Math.floor(this.from.x);
+        this.from.y = Math.floor(this.from.y);
+        this.from.z = Math.floor(this.from.z);
+
+        this.to.x = Math.floor(this.to.x);
+        this.to.y = Math.floor(this.to.y);
+        this.to.z = Math.floor(this.to.z);
+    }
+
+    from: Vector3;
+    to: Vector3;
+}
+
+export const createMockServerBindings = () => {
+    return { BlockVolume };
+};

libraries/math/api-extractor.json

@@ -3,5 +3,6 @@
  */
 {
     "$schema": "https://developer.microsoft.com/json-schemas/api-extractor/v7/api-extractor.schema.json",
-    "extends": "@minecraft/api-extractor-base/api-extractor-base.json"
+    "extends": "@minecraft/api-extractor-base/api-extractor-base.json",
+    "mainEntryPointFilePath": "<projectFolder>/temp/types/src/index.d.ts"
 }

libraries/math/api-report/math.api.md

@@ -4,9 +4,35 @@
 
 ```ts
 
+import { BlockVolume } from '@minecraft/server';
 import type { Vector2 } from '@minecraft/server';
 import type { Vector3 } from '@minecraft/server';
 
+// @public
+export interface AABB {
+    // (undocumented)
+    center: Vector3;
+    // (undocumented)
+    extent: Vector3;
+}
+
+// @public
+export class AABBUtils {
+    static createFromCornerPoints(pointA: Vector3, pointB: Vector3): AABB;
+    static dilate(aabb: AABB, size: Vector3): AABB;
+    static equals(aabb: AABB, other: AABB): boolean;
+    static expand(aabb: AABB, other: AABB): AABB;
+    static getBlockVolume(aabb: AABB): BlockVolume;
+    static getIntersection(aabb: AABB, other: AABB): AABB | undefined;
+    static getMax(aabb: AABB): Vector3;
+    static getMin(aabb: AABB): Vector3;
+    static getSpan(aabb: AABB): Vector3;
+    static intersects(aabb: AABB, other: AABB): boolean;
+    static isInside(aabb: AABB, pos: Vector3): boolean;
+    static isValid(box: AABB): boolean;
+    static translate(aabb: AABB, delta: Vector3): AABB;
+}
+
 // @public
 export function clampNumber(val: number, min: number, max: number): number;
 
@@ -121,6 +147,7 @@ export class Vector3Builder implements Vector3 {
 // @public
 export class Vector3Utils {
     static add(v1: Vector3, v2: Partial<Vector3>): Vector3;
+    static ceil(v: Vector3): Vector3;
     static clamp(v: Vector3, limits?: {
         min?: Partial<Vector3>;
         max?: Partial<Vector3>;

libraries/math/just.config.cts

@@ -24,7 +24,7 @@ task('typescript', tscTask());
 task('api-extractor-local', apiExtractorTask('./api-extractor.json', isOnlyBuild /* localBuild */));
 task('bundle', () => {
     execSync(
-        'npx esbuild ./lib/index.js --bundle --outfile=dist/minecraft-math.js --format=esm --sourcemap --external:@minecraft/server'
+        'npx esbuild ./lib/src/index.js --bundle --outfile=dist/minecraft-math.js --format=esm --sourcemap --external:@minecraft/server',
     );
     // Copy over type definitions and rename
     const officialTypes = JSON.parse(readFileSync('./package.json', 'utf-8'))['types'];

libraries/math/src/aabb/coreHelpers.test.ts

@@ -0,0 +1,199 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+
+import { describe, expect, it, vi } from 'vitest';
+import { createMockServerBindings } from '../../__mocks__/minecraft-server.js';
+vi.mock('@minecraft/server', () => createMockServerBindings());
+
+import type { Vector3 } from '@minecraft/server';
+import { VECTOR3_FORWARD, VECTOR3_ONE, VECTOR3_ZERO, Vector3Utils } from '../vector3/coreHelpers.js';
+import { AABB, AABBUtils } from './coreHelpers.js';
+
+describe('AABB factories', () => {
+    it('successfully reports invalid AABB when created from identical corner points', () => {
+        const aabb = AABBUtils.createFromCornerPoints(VECTOR3_ONE, VECTOR3_ONE);
+        expect(AABBUtils.isValid(aabb)).toBe(false);
+    });
+
+    it('successfully reports expected AABB when corner point A is less than B', () => {
+        const aabb = AABBUtils.createFromCornerPoints(VECTOR3_ZERO, VECTOR3_ONE);
+        const expectedCenter = { x: 0.5, y: 0.5, z: 0.5 };
+        const expectedextent = { x: 0.5, y: 0.5, z: 0.5 };
+        expect(AABBUtils.isValid(aabb)).toBe(true);
+        expect(Vector3Utils.equals(aabb.center, expectedCenter)).toBe(true);
+        expect(Vector3Utils.equals(aabb.extent, expectedextent)).toBe(true);
+    });
+
+    it('successfully reports expected AABB when corner point B is less than A', () => {
+        const aabb = AABBUtils.createFromCornerPoints(VECTOR3_ONE, VECTOR3_ZERO);
+        const expectedCenter = { x: 0.5, y: 0.5, z: 0.5 };
+        const expectedextent = { x: 0.5, y: 0.5, z: 0.5 };
+        expect(AABBUtils.isValid(aabb)).toBe(true);
+        expect(Vector3Utils.equals(aabb.center, expectedCenter)).toBe(true);
+        expect(Vector3Utils.equals(aabb.extent, expectedextent)).toBe(true);
+    });
+});
+
+describe('AABB operations', () => {
+    const validAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+    const invalidAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ZERO };
+
+    it('successfully reports zero extent AABB as invalid', () => {
+        expect(AABBUtils.isValid(invalidAABB)).toBe(false);
+    });
+
+    it('successfully reports non-zero extent AABB as valid', () => {
+        expect(AABBUtils.isValid(validAABB)).toBe(true);
+    });
+
+    it('successfully compares AABBs with different centers as not equal', () => {
+        const firstAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: VECTOR3_ONE, extent: VECTOR3_ONE };
+        expect(AABBUtils.equals(firstAABB, secondAABB)).toBe(false);
+    });
+
+    it('successfully compares AABBs with different extent as not equal', () => {
+        const firstAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: VECTOR3_ZERO, extent: { x: 2.0, y: 2.0, z: 2.0 } };
+        expect(AABBUtils.equals(firstAABB, secondAABB)).toBe(false);
+    });
+
+    it('successfully compares AABBs with different center and extent as not equal', () => {
+        const firstAABB: AABB = { center: VECTOR3_ONE, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: VECTOR3_ZERO, extent: { x: 2.0, y: 2.0, z: 2.0 } };
+        expect(AABBUtils.equals(firstAABB, secondAABB)).toBe(false);
+    });
+
+    it('successfully compares AABBs with same center and extent as equal', () => {
+        const firstAABB: AABB = { center: VECTOR3_ONE, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: VECTOR3_ONE, extent: VECTOR3_ONE };
+        expect(AABBUtils.equals(firstAABB, secondAABB)).toBe(true);
+    });
+
+    it('successfully returns expected min Vector3', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const min = AABBUtils.getMin(aabb);
+        expect(Vector3Utils.equals(min, { x: -1.0, y: -1.0, z: -1.0 })).toBe(true);
+    });
+
+    it('successfully returns expected max Vector3', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const max = AABBUtils.getMax(aabb);
+        expect(Vector3Utils.equals(max, { x: 1.0, y: 1.0, z: 1.0 })).toBe(true);
+    });
+
+    it('successfully returns expected span Vector3', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const span = AABBUtils.getSpan(aabb);
+        expect(Vector3Utils.equals(span, { x: 2.0, y: 2.0, z: 2.0 })).toBe(true);
+    });
+
+    it('successfully translates AABB center not changing extent', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const translatedAABB = AABBUtils.translate(aabb, VECTOR3_FORWARD);
+        expect(Vector3Utils.equals(translatedAABB.center, { x: 0.0, y: 0.0, z: 1.0 })).toBe(true);
+        expect(Vector3Utils.equals(translatedAABB.extent, VECTOR3_ONE)).toBe(true);
+    });
+
+    it('successfully dilates AABB extent not changing center', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const dilatedAABB = AABBUtils.dilate(aabb, VECTOR3_ONE);
+        expect(Vector3Utils.equals(dilatedAABB.center, VECTOR3_ZERO)).toBe(true);
+        expect(Vector3Utils.equals(dilatedAABB.extent, { x: 2.0, y: 2.0, z: 2.0 })).toBe(true);
+    });
+
+    // TODO: This may need a matrix of tests for different situations
+    it('successfully expands AABB with other AABB', () => {
+        const firstAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: VECTOR3_ONE, extent: VECTOR3_ONE };
+        const expandedAABB = AABBUtils.expand(firstAABB, secondAABB);
+        expect(Vector3Utils.equals(expandedAABB.center, { x: 0.5, y: 0.5, z: 0.5 })).toBe(true);
+        expect(Vector3Utils.equals(expandedAABB.extent, { x: 1.5, y: 1.5, z: 1.5 })).toBe(true);
+    });
+
+    it('successfully reports non-overlapping AABBs as not intersecting', () => {
+        const firstAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: { x: 2.0, y: 2.0, z: 2.0 }, extent: { x: 0.5, y: 0.5, z: 0.5 } };
+        expect(AABBUtils.intersects(firstAABB, secondAABB)).toBe(false);
+    });
+
+    it('successfully reports overlapping AABBs as intersecting', () => {
+        const firstAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: VECTOR3_ONE, extent: { x: 0.5, y: 0.5, z: 0.5 } };
+        expect(AABBUtils.intersects(firstAABB, secondAABB)).toBe(true);
+    });
+
+    it('successfully reports Vector3 outside AABB as not inside', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const location: Vector3 = { x: 1.1, y: 1.0, z: 1.0 };
+        expect(AABBUtils.isInside(aabb, location)).toBe(false);
+    });
+
+    it('successfully reports Vector3 inside of AABB as inside', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const location: Vector3 = { x: 1.0, y: 1.0, z: 1.0 };
+        expect(AABBUtils.isInside(aabb, location)).toBe(true);
+    });
+
+    it('successfully reports correct intersecting AABB for overlapping AABBs', () => {
+        const firstAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: VECTOR3_ONE, extent: { x: 0.5, y: 0.5, z: 0.5 } };
+        const intersection = AABBUtils.getIntersection(firstAABB, secondAABB);
+        expect(intersection).toBeDefined();
+        if (intersection !== undefined) {
+            expect(Vector3Utils.equals(intersection.center, { x: 0.75, y: 0.75, z: 0.75 })).toBe(true);
+            expect(Vector3Utils.equals(intersection.extent, { x: 0.25, y: 0.25, z: 0.25 })).toBe(true);
+        }
+    });
+
+    it('successfully reports undefined AABB for non-overlapping AABBs', () => {
+        const firstAABB: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const secondAABB: AABB = { center: { x: 2.0, y: 2.0, z: 2.0 }, extent: { x: 0.5, y: 0.5, z: 0.5 } };
+        const intersection = AABBUtils.getIntersection(firstAABB, secondAABB);
+        expect(intersection).toBeUndefined();
+    });
+});
+
+describe('AABB BlockVolume operations', () => {
+    it('successfully creates a BlockVolume when AABB extent are VECTOR3_ONE', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: VECTOR3_ONE };
+        const blockVolume = AABBUtils.getBlockVolume(aabb);
+        expect(blockVolume.from).toEqual({ x: -1.0, y: -1.0, z: -1.0 });
+        expect(blockVolume.to).toEqual({ x: 1.0, y: 1.0, z: 1.0 });
+    });
+
+    it('successfully creates a BlockVolume when AABB extent coords are 0.5', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: { x: 0.5, y: 0.5, z: 0.5 } };
+        const blockVolume = AABBUtils.getBlockVolume(aabb);
+        expect(blockVolume.from).toEqual({ x: -1.0, y: -1.0, z: -1.0 });
+        expect(blockVolume.to).toEqual({ x: 1.0, y: 1.0, z: 1.0 });
+    });
+
+    it('successfully creates a BlockVolume when AABB center and extent coords are 0.5', () => {
+        const aabb: AABB = { center: { x: 0.5, y: 0.5, z: 0.5 }, extent: { x: 0.5, y: 0.5, z: 0.5 } };
+        const blockVolume = AABBUtils.getBlockVolume(aabb);
+        expect(blockVolume.from).toEqual({ x: 0.0, y: 0.0, z: 0.0 });
+        expect(blockVolume.to).toEqual({ x: 1.0, y: 1.0, z: 1.0 });
+    });
+
+    it('successfully creates a BlockVolume when AABB center coords are -0.5 and extent coords are 0.5', () => {
+        const aabb: AABB = { center: { x: -0.5, y: -0.5, z: -0.5 }, extent: { x: 0.5, y: 0.5, z: 0.5 } };
+        const blockVolume = AABBUtils.getBlockVolume(aabb);
+        expect(blockVolume.from).toEqual({ x: -1.0, y: -1.0, z: -1.0 });
+        expect(blockVolume.to).toEqual({ x: -0.0, y: -0.0, z: -0.0 });
+    });
+
+    it('successfully creates a BlockVolume when AABB extent are greater than VECTOR3_ZERO within epsilon', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: { x: 0.00001, y: 0.00001, z: 0.00001 } };
+        const blockVolume = AABBUtils.getBlockVolume(aabb);
+        expect(blockVolume.from).toEqual({ x: 0.0, y: 0.0, z: 0.0 });
+        expect(blockVolume.to).toEqual({ x: 0.0, y: 0.0, z: 0.0 });
+    });
+
+    it('successfully creates a BlockVolume when AABB extent are greater than VECTOR3_ZERO exceeding epsilon', () => {
+        const aabb: AABB = { center: VECTOR3_ZERO, extent: { x: 0.00002, y: 0.00002, z: 0.00002 } };
+        const blockVolume = AABBUtils.getBlockVolume(aabb);
+        expect(blockVolume.from).toEqual({ x: -1.0, y: -1.0, z: -1.0 });
+        expect(blockVolume.to).toEqual({ x: 1.0, y: 1.0, z: 1.0 });
+    });
+});