A simple library for 2D physics simulations in .NET.

The easiest way to use this library is via its NuGet package:

PM> Install-Package Boing

Build a Graph comprising Nodes (point masses) connected via Edges.

Create a Physics object for that graph and add various forces.

Then periodically update the physics object with a time step.

// construct a graph (this is a very simple one)
var node1 = new Node("Node1", mass: 1.0f);
var node2 = new Node("Node2", mass: 2.0f);

var graph = new Graph();
graph.AddNode(node1);
graph.AddNode(node2);
graph.AddEdge(new Edge("Edge1", node1, node2));

var physics = new Physics(graph);

// add various forces to the universe
physics.Add(new ColoumbForce());                       // nodes are attracted
physics.Add(new HookeForce());                         // edges are springs
physics.Add(new OriginAttractionForce(stiffness: 10)); // nodes move towards the origin
physics.Add(new FlowDownwardForce(magnitude: 100));    // gravity

// set up a loop
while (true)
{
  // compute a time step
  physics.Update(dt: 0.01f);
  
  // use the resulting positions somehow
  Console.WriteLine($"Node1 at {node1.Position}, Node2 at {node2.Position}");
}

Copyright 2015-2016 Drew Noakes, Krzysztof Dul

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.