ngraph.physics.primitives - npm Package Compare versions

Comparing version 0.0.3 to 0.0.4

index.js

 module.exports = {
   Body: Body,
-  Vector2d: Vector2d
-  // that's it for now
+  Vector2d: Vector2d,
+  Body3d: Body3d,
+  Vector3d: Vector3d
 };
@@ -18,1 +19,14 @@
 }
+
+function Body3d(x, y, z) {
+  this.pos = new Vector3d(x, y, z);
+  this.force = new Vector3d();
+  this.velocity = new Vector3d();
+  this.mass = 1;
+}
+
+function Vector3d(x, y, z) {
+  this.x = typeof x === 'number' ? x : 0;
+  this.y = typeof y === 'number' ? y : 0;
+  this.z = typeof z === 'number' ? z : 0;
+}

package.json

 {
   "name": "ngraph.physics.primitives",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "description": "Physics primitives for ngraph.* libraries",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

 ngraph.physics.primitives
 =========================
 
-Module with basic 2d physics primitives for ngraph. It defines interface for physical bodies, used in [n-body](https://github.com/anvaka/ngraph.quadtreebh) simulation.
+Module with basic 2d and 3d physics primitives for ngraph. It defines interface for physical bodies, used in [n-body](https://github.com/anvaka/ngraph.quadtreebh) simulation.
 
@@ -20,2 +20,5 @@ [![build status](https://secure.travis-ci.org/anvaka/ngraph.physics.primitives.png)](http://travis-ci.org/anvaka/ngraph.physics.primitives)
 console.log(direction.x, direction.y); // prints 0, 0
+
+var spaceDirection = new physics.Vector3d(); // create a 3d vector
+console.log(spaceDirection.x, spaceDirection.y, spaceDirection.z); // prints 0, 0, 0
 ```
@@ -22,0 +25,0 @@

test/duck.js

@@ -27,1 +27,28 @@ var test = require('tap').test,
 });
+
+test('Body3d has properties force, pos and mass', function(t) {
+  var body = new primitives.Body3d();
+  t.ok(body.force, 'Force attribute is missing on body');
+  t.ok(body.pos, 'Pos attribute is missing on body');
+  t.ok(body.velocity, 'Velocity attribute is missing on body');
+  t.ok(typeof body.mass === 'number' && body.mass !== 0, 'Body should have a mass');
+  t.end();
+});
+
+test('Vector3d has x and y and z', function(t) {
+  var vector = new primitives.Vector3d();
+  t.ok(typeof vector.x === 'number', 'Vector has x coordinates');
+  t.ok(typeof vector.y === 'number', 'Vector has y coordinates');
+  t.ok(typeof vector.z === 'number', 'Vector has z coordinates');
+
+  var initialized = new primitives.Vector3d(1, 2, 3);
+  t.equal(initialized.x, 1, 'Vector initialized imporperly');
+  t.equal(initialized.y, 2, 'Vector initialized imporperly');
+  t.equal(initialized.z, 3, 'Vector initialized imporperly');
+
+  var badInput = new primitives.Vector3d('hello world');
+  t.equal(badInput.x, 0, 'Vector should be resilient to bed input');
+  t.equal(badInput.y, 0, 'Vector should be resilient to bed input');
+  t.equal(badInput.z, 0, 'Vector should be resilient to bed input');
+  t.end();
+});

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Improved metrics

Total package byte prevSize

6332

increased by35.91%

Lines of code

72

increased by94.59%

Number of lines in readme file

34

increased by9.68%

No dependency changes