Bump to v2 (#9)

* Bumped to API v2.x.x referencing to original [Python based implementation](https://github.com/o-murphy/py-ballisticcalc)

.github/workflows/tests.yml

@@ -0,0 +1,18 @@
+name: Node.js Unittests
+
+on:
+  pull_request:
+      branches:
+        - '*'
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 16
+      - run: npm ci
+      - run: npm test

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "cSpell.words": [
+        "atmo"
+    ]
+}

__tests__/trajectory.test.ts

@@ -1,5 +1,5 @@
 import {describe, expect, test} from '@jest/globals';
-import {Ammo, Atmo, DragModel, Table, Shot, TrajectoryCalc, UNew, Unit, Weapon, Wind, TrajFlag} from "../src/index.js";
+import {Ammo, Atmo, DragModel, Table, Shot, TrajectoryCalc, UNew, Unit, Weapon, Wind, TrajFlag, TrajectoryData} from "../src/index.js";
 
 describe("TrajectoryCalc", () => {
 
@@ -105,7 +105,7 @@ describe("TrajectoryCalc", () => {
         customAssertEqual(data.length, 11, 0.1, "Length")
 
         const test_data = [
-            [data[0], 0, 2750, 2.463, 2820.6, -2, 0, 0, 0, 0, 880, Unit.MOA],
+            [data[0], 0, 2750.0, 2.463, 2820.6, -2, 0, 0, 0, 0, 880, Unit.MOA],
             [data[1], 100, 2351.2, 2.106, 2061, 0, 0, -0.6, -0.6, 0.118, 550, Unit.MOA],
             [data[5], 500, 1169.1, 1.047, 509.8, -87.9, -16.8, -19.5, -3.7, 0.857, 67, Unit.MOA],
             [data[10], 1000, 776.4, 0.695, 224.9, -823.9, -78.7, -87.5, -8.4, 2.495, 20, Unit.MOA]

__tests__/v2/atmosphere.test.ts

@@ -0,0 +1,44 @@
+import { Atmo, Temperature, Pressure, Velocity, UNew } from "../../src/v2";
+
+describe('Atmo Class Tests', () => {
+    let standard: Atmo;
+    let highICAO: Atmo;
+    let highISA: Atmo;
+    let custom: Atmo;
+
+    beforeEach(() => {
+        standard = Atmo.standard({});
+        highICAO = Atmo.standard({altitude: UNew.Foot(10000)});
+        highISA = Atmo.standard({altitude: UNew.Meter(1000)});
+        custom = new Atmo({
+                pressure: UNew.InHg(31),
+                temperature: UNew.Fahrenheit(30),
+                humidity: 0.5
+            }
+        );
+    });
+
+    test('Standard atmosphere properties', () => {
+        expect(standard.temperature.In(Temperature.Fahrenheit)).toBeCloseTo(59.0, 1);
+        expect(standard.pressure.In(Pressure.hPa)).toBeCloseTo(1013.25, 1);
+        expect(standard.densityImperial).toBeCloseTo(0.076474, 4);
+    });
+
+    test('High altitude properties (ICAO and ISA)', () => {
+        // Ref https://www.engineeringtoolbox.com/standard-atmosphere-d_604.html
+        expect(highICAO.temperature.In(Temperature.Fahrenheit)).toBeCloseTo(23.36, 1);
+        expect(highICAO.densityRatio).toBeCloseTo(0.7387, 3);
+        // Ref https://www.engineeringtoolbox.com/international-standard-atmosphere-d_985.html
+        expect(highISA.pressure.In(Pressure.hPa)).toBeCloseTo(899, 0);
+        expect(highISA.densityRatio).toBeCloseTo(0.9075, 4);
+    });
+
+    test('Mach calculations', () => {
+        // Ref https://www.omnicalculator.com/physics/speed-of-sound
+        expect(Atmo.machF(59)).toBeCloseTo(1116.15, 0);
+        expect(Atmo.machF(10)).toBeCloseTo(1062.11, 0);
+        expect(Atmo.machF(99)).toBeCloseTo(1158.39, 0);
+        expect(Atmo.machC(-20)).toBeCloseTo(318.94, 1);
+        expect(highISA.mach.In(Velocity.MPS)).toBeCloseTo(336.4, 1);
+    });
+});