FlexBody.h

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/*
    This source file is part of Rigs of Rods
    Copyright 2005-2012 Pierre-Michel Ricordel
    Copyright 2007-2012 Thomas Fischer
    Copyright 2013-2020 Petr Ohlidal
 
    For more information, see http://www.rigsofrods.org/
 
    Rigs of Rods is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 3, as
    published by the Free Software Foundation.
 
    Rigs of Rods is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with Rigs of Rods. If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include "RigDef_Prerequisites.h"
#include "Application.h"
#include "Locator_t.h"
#include "SimData.h"
#include "GfxData.h"
#include "RigDef_File.h"
#include "Utils.h"
 
#include <Ogre.h>
 
namespace RoR {
 
 
 
class FlexBody
{
    friend class RoR::FlexFactory;
    friend class RoR::FlexBodyFileIO;
 
    FlexBody( // Private, for FlexFactory
        RoR::FlexBodyCacheData* preloaded_from_cache,
        RoR::GfxActor* gfx_actor,
        Ogre::Entity* entity,
        NodeNum_t ref, 
        NodeNum_t nx, 
        NodeNum_t ny,
        Ogre::Vector3 offset,
        Ogre::Quaternion const & rot, 
        std::vector<unsigned int>& node_indices,
        std::vector<ForvertTempData>& forvert_data
    );
 
public:
 
    enum class PlaceholderType
    {
        NOT_A_PLACEHOLDER,
        TUNING_REMOVED_PLACEHOLDER,
        FAULTY_FORSET_PLACEHOLDER,
        FAULTY_MESH_PLACEHOLDER,
    };
    static const char* PlaceholderTypeToString(PlaceholderType type);
 
    CameraMode_t          fb_camera_mode_active = CAMERA_MODE_ALWAYS_VISIBLE; 
    CameraMode_t          fb_camera_mode_orig = CAMERA_MODE_ALWAYS_VISIBLE;   
 
    FlexBody(PlaceholderType, FlexbodyID_t id, const std::string& orig_meshname);
    ~FlexBody();
 
    void reset();
    void updateBlend();
    void writeBlend();
 
    void computeFlexbody(); 
    void updateFlexbodyVertexBuffers();
 
    bool isVisible() const;
    void setVisible(bool visible);
 
    void setFlexbodyCastShadow(bool val);
 
    int getVertexCount() { return static_cast<int>(m_vertex_count); };
    Locator_t& getVertexLocator(int vert) { ROR_ASSERT((size_t)vert < m_vertex_count); return m_locators[vert]; }
    Ogre::Vector3 getVertexPos(int vert) { ROR_ASSERT((size_t)vert < m_vertex_count); return m_dst_pos[vert] + m_flexit_center; }
    Ogre::Entity* getEntity() { return m_scene_entity; }
    const std::string& getOrigMeshName() const { return m_orig_mesh_name; }
    std::vector<NodeNum_t>& getForsetNodes() { return m_forset_nodes; };
    std::string getOrigMeshInfo() { return m_orig_mesh_info; }
    std::string getLiveMeshInfo() { return RoR::PrintMeshInfo("Live", m_scene_entity->getMesh()); }
 
    NodeNum_t getRefNode() { return m_node_center; }
    NodeNum_t getXNode() { return m_node_x; }
    NodeNum_t getYNode() { return m_node_y; }
 
    FlexbodyID_t getID() const { return m_id; }
    PlaceholderType getPlaceholderType() const { return m_placeholder_type; }
    void destroyOgreObjects();
 
private:
 
    void defragmentFlexbodyMesh();
 
    RoR::GfxActor*    m_gfx_actor = nullptr;
    size_t            m_vertex_count = 0;
    Ogre::Vector3     m_flexit_center = Ogre::Vector3::ZERO; 
    FlexbodyID_t      m_id = FLEXBODYID_INVALID; // Filled by FlexFactory
    PlaceholderType   m_placeholder_type = PlaceholderType::NOT_A_PLACEHOLDER;
 
    Ogre::Vector3*    m_dst_pos = nullptr;
    Ogre::Vector3*    m_src_normals = nullptr;
    Ogre::Vector3*    m_dst_normals = nullptr;
    Ogre::ARGB*       m_src_colors = nullptr;
    Locator_t*        m_locators = nullptr; 
 
    NodeNum_t         m_node_center = NODENUM_INVALID;
    NodeNum_t         m_node_x = NODENUM_INVALID;
    NodeNum_t         m_node_y = NODENUM_INVALID;
    Ogre::Vector3     m_center_offset = Ogre::Vector3::ZERO;
    Ogre::SceneNode*  m_scene_node = nullptr;
    Ogre::Entity*     m_scene_entity = nullptr;
    int               m_camera_mode = CAMERA_MODE_ALWAYS_VISIBLE; 
 
    int                                 m_shared_buf_num_verts = 0;
    Ogre::HardwareVertexBufferSharedPtr m_shared_vbuf_pos;
    Ogre::HardwareVertexBufferSharedPtr m_shared_vbuf_norm;
    Ogre::HardwareVertexBufferSharedPtr m_shared_vbuf_color;
 
    int                                 m_num_submesh_vbufs = 0;
    int                                 m_submesh_vbufs_vertex_counts[16];
    Ogre::HardwareVertexBufferSharedPtr m_submesh_vbufs_pos[16];   
    Ogre::HardwareVertexBufferSharedPtr m_submesh_vbufs_norm[16];  
    Ogre::HardwareVertexBufferSharedPtr m_submesh_vbufs_color[16]; 
 
    bool m_uses_shared_vertex_data = false;
    bool m_has_texture = true;
    bool m_has_texture_blend = true;
    bool m_blend_changed = false;
 
    // Diagnostic data, not used for calculations
    std::vector<NodeNum_t> m_forset_nodes;
    std::string m_orig_mesh_info;
    std::string m_orig_mesh_name;
};
 
 
} // namespace RoR