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114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
#ifndef OPENMW_COMPONENTS_NIFBULLET_BULLETNIFLOADER_HPP
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#define OPENMW_COMPONENTS_NIFBULLET_BULLETNIFLOADER_HPP
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#include <cassert>
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#include <string>
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#include <set>
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#include <iostream>
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#include <map>
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#include <osg/Matrixf>
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#include <osg/BoundingBox>
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#include <osg/ref_ptr>
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#include <osg/Referenced>
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#include <components/nif/niffile.hpp>
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class btTriangleMesh;
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class btCompoundShape;
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class btCollisionShape;
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namespace Nif
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{
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class Node;
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struct Transformation;
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struct NiTriShape;
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}
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namespace NifBullet
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{
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class BulletShapeInstance;
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class BulletShape : public osg::Referenced
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{
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public:
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BulletShape();
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virtual ~BulletShape();
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btCollisionShape* mCollisionShape;
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// Used for actors. Note, ideally actors would use a separate loader - as it is
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// we have to keep a redundant copy of the actor model around in mCollisionShape, which isn't used.
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// For now, use one file <-> one resource for simplicity.
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osg::Vec3f mCollisionBoxHalfExtents;
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osg::Vec3f mCollisionBoxTranslate;
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// Stores animated collision shapes. If any collision nodes in the NIF are animated, then mCollisionShape
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// will be a btCompoundShape (which consists of one or more child shapes).
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// In this map, for each animated collision shape,
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// we store the node's record index mapped to the child index of the shape in the btCompoundShape.
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std::map<int, int> mAnimatedShapes;
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osg::ref_ptr<BulletShapeInstance> makeInstance();
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btCollisionShape* duplicateCollisionShape(btCollisionShape* shape) const;
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btCollisionShape* getCollisionShape();
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private:
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void deleteShape(btCollisionShape* shape);
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};
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// An instance of a BulletShape that may have its own unique scaling set on the mCollisionShape.
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// Vertex data is shallow-copied where possible. A ref_ptr to the original shape needs to be held to keep vertex pointers intact.
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class BulletShapeInstance : public BulletShape
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{
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public:
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BulletShapeInstance(osg::ref_ptr<BulletShape> source);
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private:
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osg::ref_ptr<BulletShape> mSource;
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};
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/**
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*Load bulletShape from NIF files.
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*/
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class BulletNifLoader
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{
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public:
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BulletNifLoader();
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virtual ~BulletNifLoader();
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void warn(const std::string &msg)
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{
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std::cerr << "NIFLoader: Warn:" << msg << "\n";
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}
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void fail(const std::string &msg)
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{
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std::cerr << "NIFLoader: Fail: "<< msg << std::endl;
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abort();
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}
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osg::ref_ptr<BulletShape> load(const Nif::NIFFilePtr file);
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private:
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bool findBoundingBox(const Nif::Node* node, int flags = 0);
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void handleNode(Nif::Node const *node, int flags, bool isCollisionNode, bool isAnimated=false, bool autogenerated=false);
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bool hasAutoGeneratedCollision(const Nif::Node *rootNode);
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void handleNiTriShape(const Nif::NiTriShape *shape, int flags, const osg::Matrixf& transform, bool isAnimated);
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btCompoundShape* mCompoundShape;
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btTriangleMesh* mStaticMesh;
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osg::ref_ptr<BulletShape> mShape;
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};
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}
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#endif
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