eyes-loader.cpp

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/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper source code 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 Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "game/ant/gene/loader/gene-loader.hpp"
#include <engine/resources/resource-loader.hpp>
#include <engine/resources/resource-manager.hpp>
#include <engine/resources/json.hpp>
#include "game/ant/gene/eyes.hpp"
#include <engine/render/model.hpp>
#include <stdexcept>
 
using namespace ::ant;
 
static void deserialize_eyes_phene(phene::eyes& phene, const json& phene_element, resource_manager* resource_manager)
{
    phene.present = false;
    phene.model = nullptr;
    phene.length = 0.0f;
    phene.width = 0.0f;
    phene.height = 0.0f;
    phene.ommatidia_count = 0;
    
    // Parse present
    if (auto element = phene_element.find("present"); element != phene_element.end())
        phene.present = element->get<bool>();
    
    if (phene.present)
    {
        // Load eyes model
        if (auto element = phene_element.find("model"); element != phene_element.end())
            phene.model = resource_manager->load<render::model>(element->get<std::string>());
        
        // Parse length
        if (auto element = phene_element.find("length"); element != phene_element.end())
            phene.length = element->get<float>();
        
        // Parse width
        if (auto element = phene_element.find("width"); element != phene_element.end())
            phene.width = element->get<float>();
        
        // Parse height
        if (auto element = phene_element.find("height"); element != phene_element.end())
            phene.height = element->get<float>();
        
        // Parse ommatidia count
        if (auto element = phene_element.find("ommatidia_count"); element != phene_element.end())
            phene.ommatidia_count = element->get<int>();
    }
}
 
template <>
gene::eyes* resource_loader<gene::eyes>::load(resource_manager* resource_manager, PHYSFS_File* file, const std::filesystem::path& path)
{
    // Load JSON data
    json* data = resource_loader<json>::load(resource_manager, file, path);
    
    // Validate gene file
    auto eyes_element = data->find("eyes");
    if (eyes_element == data->end())
        throw std::runtime_error("Invalid eyes gene.");
    
    // Allocate gene
    gene::eyes* eyes = new gene::eyes();
    
    // Deserialize gene
    gene::deserialize_gene(*eyes, &deserialize_eyes_phene, *eyes_element, resource_manager);
    
    // Free JSON data
    delete data;
    
    return eyes;
}