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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#ifndef MASSPULLEYSPRINGSYSTEM_H
#define MASSPULLEYSPRINGSYSTEM_H
#include "Wm5WindowApplication3.h"
#include "PhysicsModule.h"
using namespace Wm5;
class MassPulleySpringSystem : public WindowApplication3
{
WM5_DECLARE_INITIALIZE;
WM5_DECLARE_TERMINATE;
public:
MassPulleySpringSystem ();
virtual bool OnInitialize ();
virtual void OnTerminate ();
virtual void OnIdle ();
virtual bool OnKeyDown (unsigned char key, int x, int y);
protected:
void InitializeModule ();
void CreateScene ();
TriMesh* CreateFloor ();
TubeSurface* CreateCable ();
TriMesh* CreateMass (float radius);
void CreatePulley ();
void CreateSpring ();
TubeSurface* CreateHelix ();
void UpdatePulley ();
void UpdateCable ();
void UpdateHelix ();
void PhysicsTick ();
void GraphicsTick ();
// Root of scene and floor mesh.
NodePtr mScene;
TriMeshPtr mFloor;
WireStatePtr mWireState;
Culler mCuller;
// Assembly to parent the cable root and pulley root.
NodePtr mAssembly;
// Cable modeled as a tube surface, masses attached to ends.
NodePtr mCableRoot;
BSplineCurve3f* mCableSpline;
TubeSurfacePtr mCable;
static float CableRadial (float);
TriMeshPtr mMass1, mMass2;
// Node to parent the pulley and spring.
NodePtr mPulleyRoot;
// Pulley modeled as a disk with thickness.
NodePtr mPulley;
TriMeshPtr mPlate0, mPlate1, mCylinder;
Texture2DEffectPtr mMetalEffect;
Texture2DPtr mMetalTexture;
// Spring modeled as a tube surface in the shape of a helix, then attached
// to a U-bracket to hold the pulley disk.
NodePtr mSpring;
TriMeshPtr mSide0, mSide1, mTop;
BSplineCurve3f* mHelixSpline;
TubeSurfacePtr mHelix;
static float HelixRadial (float);
// The physics system.
PhysicsModule mModule;
// Support for a controlled frame rate.
float mLastIdle;
};
WM5_REGISTER_INITIALIZE(MassPulleySpringSystem);
WM5_REGISTER_TERMINATE(MassPulleySpringSystem);
#endif
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