#region MIT License
/*
* Copyright (c) 2005-2008 Jonathan Mark Porter. http://physics2d.googlepages.com/
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#endregion
#if UseDouble
using Scalar = System.Double;
#else
using Scalar = System.Single;
#endif
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Physics2DDotNet.Joints;
namespace Physics2DDotNet.Solvers
{
[Serializable]
public abstract class CollisionSolver
{
protected static void SetTag(Body body, object tag)
{
if (body == null) { throw new ArgumentNullException("body"); }
body.SolverTag = tag;
}
PhysicsEngine engine;
protected List<Joint> Joints { get { return engine.joints; } }
protected List<Body> Bodies { get { return engine.bodies; } }
/// <summary>
/// The engine this solver is in.
/// </summary>
public PhysicsEngine Engine
{
get { return engine; }
}
protected internal abstract bool TryGetIntersection(TimeStep step, Body first, Body second, out IContact contact);
protected internal abstract void Solve(TimeStep step);
internal void OnAddedInternal(PhysicsEngine engine)
{
if (this.engine != null) { throw new InvalidOperationException(); }
this.engine = engine;
OnAdded();
this.AddBodyRange(engine.bodies);
}
internal void OnRemovedInternal()
{
engine = null;
Clear();
OnRemoved();
}
protected virtual void OnAdded() { }
protected virtual void OnRemoved() { }
protected internal virtual void Clear() { }
protected internal virtual void AddBodyRange(List<Body> collection) { }
protected internal virtual void AddJointRange(List<Joint> collection) { }
protected internal virtual void RemoveExpiredBodies() { }
protected internal virtual void RemoveExpiredJoints() { }
protected void Detect(TimeStep step)
{
engine.BroadPhase.Detect(step);
}
protected internal abstract void CheckJoint(Joint joint);
}
}
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