planetrendering.h

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/* Conquer Space
 * Copyright (C) 2021-2025 Conquer Space
 *
 * This program 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.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#pragma once
 
#include <map>
#include <vector>
 
#include <entt/entt.hpp>
#include <glm/glm.hpp>
 
#include "engine/graphics/mesh.h"
#include "engine/graphics/texture.h"
#include "engine/renderer/framebuffertexture.h"
 
namespace cqsp::client::components {
struct PlanetTerrainRender {
    entt::entity resource;
};
 
struct Offset {
    glm::vec3 offset;
};
 
struct PlanetCityOffsets {
    std::vector<std::tuple<entt::entity, glm::vec3, std::string>> offsets;
};
 
struct TerrainTextureData {
    asset::Texture* terrain_albedo = nullptr;
    asset::Texture* heightmap = nullptr;
 
    void DeleteData() {
        delete terrain_albedo;
        delete heightmap;
    }
};
 
struct PlanetTexture {
    asset::Texture* terrain = nullptr;
    asset::Texture* normal = nullptr;
    asset::Texture* roughness = nullptr;
    asset::Texture* province_index_texture = nullptr;
    asset::Texture* province_color_map = nullptr;
    engine::FramebufferTexture* overlay = nullptr;
    // province_map.size() == province_indices.size() == province_map width * province_map height
    std::vector<entt::entity> province_map;
    // Indices for the color on the map
    // The indices are the index on the province_color
    std::vector<uint16_t> province_indices;
    // province_colors.size() == n provinces
    // rgba of the province colors
    // the color of the province is province_colors[province_index_map[province_color]]
    std::vector<glm::vec4> province_colors;
    // Converts an entity to a value on the province color vector
    std::unordered_map<entt::entity, uint16_t> province_index_map;
 
    // Width and height of the province indices vector and the
    // province map
    int width = 0;
    int height = 0;
    bool has_provinces = false;
 
    ~PlanetTexture() {
        // Delete all the textures that are not from the asset loader
        delete province_color_map;
        delete province_index_texture;
        delete overlay;
    }
};
 
struct OrbitMesh {
    engine::Mesh_t orbit_mesh;
 
    ~OrbitMesh() = default;
};
}  // namespace cqsp::client::components