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maszyna/material.h

71 lines
2.3 KiB
C++

/*
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
*/
#pragma once
#include "texture.h"
#include "parser.h"
typedef int material_handle;
// a collection of parameters for the rendering setup.
// for modern opengl this translates to set of attributes for the active shaders,
// for legacy opengl this is basically just texture(s) assigned to geometry
struct opengl_material {
texture_handle texture1 { null_handle }; // primary texture, typically diffuse+apha
texture_handle texture2 { null_handle }; // secondary texture, typically normal+reflection
bool has_alpha { false }; // alpha state, calculated from presence of alpha in texture1
std::string name;
// methods
bool
deserialize( cParser &Input, bool const Loadnow );
private:
// methods
// imports member data pair from the config file, overriding existing parameter values of lower priority
bool
deserialize_mapping( cParser &Input, int const Priority, bool const Loadnow );
// members
int priority1 { -1 }; // priority of last loaded primary texture
int priority2 { -1 }; // priority of last loaded secondary texture
};
class material_manager {
public:
material_manager() { m_materials.emplace_back( opengl_material() ); } // empty bindings for null material
material_handle
create( std::string const &Filename, bool const Loadnow );
opengl_material const &
material( material_handle const Material ) const { return m_materials[ Material ]; }
private:
// types
typedef std::vector<opengl_material> material_sequence;
typedef std::unordered_map<std::string, std::size_t> index_map;
// methods:
// checks whether specified texture is in the texture bank. returns texture id, or npos.
material_handle
find_in_databank( std::string const &Materialname ) const;
// checks whether specified file exists. returns name of the located file, or empty string.
std::string
find_on_disk( std::string const &Materialname ) const;
// members:
material_sequence m_materials;
index_map m_materialmappings;
};
//---------------------------------------------------------------------------