a8ec916af0
Please see HfFluidDemo.cpp for examples of how to use the height field fluid along with buoyant collision shapes. The implementation is still lacking in my ways: 1) Need to complete more collision algorithms for buoyant collision shapes 2) Support compound buoyant shapes 3) The buoyancy model isn't that great 4) Fluid volume can be lost over time
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
#ifndef __BT_HFFLUID_BUOYANT_CONVEX_SHAPE_H
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#define __BT_HFFLUID_BUOYANT_CONVEX_SHAPE_H
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#include "LinearMath/btVector3.h"
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#include "BulletCollision/CollisionShapes/btCollisionShape.h"
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#define MAX_VOXEL_DIMENSION 32
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class btConvexShape;
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class btHfFluidBuoyantConvexShape : public btCollisionShape
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{
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public:
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btHfFluidBuoyantConvexShape (btConvexShape* convexShape);
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void generateShape (btScalar radius, btScalar gap);
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btConvexShape* getConvexShape () { return m_convexShape; }
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virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
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virtual void setMargin(btScalar margin);
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virtual btScalar getMargin() const;
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virtual void setLocalScaling(const btVector3& scaling);
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virtual const btVector3& getLocalScaling() const;
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virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const;
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virtual const char* getName()const;
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btScalar getVoxelRadius () const { return m_radius; }
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btScalar getTotalVolume () const { return m_totalVolume; }
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btScalar getVolumePerVoxel () const { return m_volumePerVoxel; }
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btScalar getFloatyness () const { return m_floatyness; }
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void setFloatyness (btScalar floatyness) { m_floatyness = floatyness; }
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int getNumVoxels () const { return m_numVoxels; }
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const btVector3* getVoxelPositionsArray() { return m_voxelPositions; }
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protected:
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btScalar m_floatyness;
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btScalar m_radius;
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btScalar m_totalVolume;
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btScalar m_volumePerVoxel;
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int m_numVoxels;
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btVector3 m_voxelPositions[MAX_VOXEL_DIMENSION*MAX_VOXEL_DIMENSION*MAX_VOXEL_DIMENSION];
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btConvexShape* m_convexShape;
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};
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#endif
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