wieldmesh.h

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/*
Minetest
Copyright (C) 2010-2014 celeron55, Perttu Ahola <celeron55@gmail.com>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
 
This program 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 Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
 
#pragma once
 
#include <string>
#include <vector>
#include "irrlichttypes_extrabloated.h"
 
struct ItemStack;
class Client;
class ITextureSource;
struct ContentFeatures;
 
struct ItemPartColor
{
    bool override_base = false;
    video::SColor color = 0;
 
    ItemPartColor() = default;
 
    ItemPartColor(bool override, video::SColor color) :
            override_base(override), color(color)
    {
    }
};
 
struct ItemMesh
{
    scene::IMesh *mesh = nullptr;
    std::vector<ItemPartColor> buffer_colors;
    bool needs_shading = true;
 
    ItemMesh() = default;
};
 
/*
    Wield item scene node, renders the wield mesh of some item
*/
class WieldMeshSceneNode : public scene::ISceneNode
{
public:
    WieldMeshSceneNode(scene::ISceneManager *mgr, s32 id = -1, bool lighting = false);
    virtual ~WieldMeshSceneNode();
 
    void setCube(const ContentFeatures &f, v3f wield_scale);
    void setExtruded(const std::string &imagename, const std::string &overlay_image,
            v3f wield_scale, ITextureSource *tsrc, u8 num_frames);
    void setItem(const ItemStack &item, Client *client,
            bool check_wield_image = true);
 
    // Sets the vertex color of the wield mesh.
    // Must only be used if the constructor was called with lighting = false
    void setColor(video::SColor color);
 
    void setNodeLightColor(video::SColor color);
 
    scene::IMesh *getMesh() { return m_meshnode->getMesh(); }
 
    virtual void render();
 
    virtual const aabb3f &getBoundingBox() const { return m_bounding_box; }
 
private:
    void changeToMesh(scene::IMesh *mesh);
 
    // Child scene node with the current wield mesh
    scene::IMeshSceneNode *m_meshnode = nullptr;
    video::E_MATERIAL_TYPE m_material_type;
 
    // True if EMF_LIGHTING should be enabled.
    bool m_lighting;
 
    bool m_enable_shaders;
    bool m_anisotropic_filter;
    bool m_bilinear_filter;
    bool m_trilinear_filter;
    std::vector<ItemPartColor> m_colors;
    video::SColor m_base_color;
 
    // Bounding box culling is disabled for this type of scene node,
    // so this variable is just required so we can implement
    // getBoundingBox() and is set to an empty box.
    aabb3f m_bounding_box;
};
 
void getItemMesh(Client *client, const ItemStack &item, ItemMesh *result);
 
scene::SMesh *getExtrudedMesh(ITextureSource *tsrc, const std::string &imagename,
        const std::string &overlay_name);
 
void postProcessNodeMesh(scene::SMesh *mesh, const ContentFeatures &f, bool use_shaders,
        bool set_material, const video::E_MATERIAL_TYPE *mattype,
        std::vector<ItemPartColor> *colors, bool apply_scale = false);