#6 add basic Matrix class

coverage/coverage-summary.json

@@ -1,3 +1,3 @@
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 }

tests/matrix.test.ts

@@ -0,0 +1,18 @@
+import { Matrix } from '../volts';
+
+describe('matrix construction', () => {
+    test('construct', () => {
+        expect(() => new Matrix([0,0,0], [0,0,0], [0,0,0])).not.toThrow();
+    });
+    test('error', () => {
+        expect(() => new Matrix([1,2,3], [1,2], [1])).toThrow();
+        expect(() => new Matrix([1,2,3])).toThrow();
+        expect(() => new Matrix([1], [2], [3])).toThrow();
+    })
+});
+
+describe('utils', () => {
+    test('toString', () => {
+        expect(new Matrix([0,0,0], [0,0,0], [0,0,0]).toString()).toEqual('0,0,0,0,0,0,0,0,0');
+    })
+})

volts.ts

@@ -1443,6 +1443,24 @@ Vector.prototype.rotate = function <D extends number>(a: number): Vector<D> {
 
 //#endregion
 
+//#region Matrix
+
+export class Matrix {
+  values: number[][];
+  constructor(...args: number[][] ) {
+    this.values = args;
+    if (!args.every((arr) => arr.length === args.length)) {
+      throw new Error(`@ Volts.Matrix arguments do not correspond to Square matrix. args: ${args}`);
+    };
+  }
+  toString() {
+    return this.values.toString();
+  }
+}
+
+//#endregion
+
+
 //#region Quaternion
 
 type QuaternionArgRest = [number, number, number, number] | [number[]] | [Quaternion] | [];
@@ -2139,6 +2157,8 @@ export class Object3D<T extends SceneObjectBase = any> {
           throw new Error(`@ Volts.createPhysicsSolver: Solver "${args.solver}" is not implemented `);
       };
 
+      // Resolve collisions
+
       // if (obj.pos.y < args.floor) {
       //   obj.pos.y = args.floor;
       // }