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/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ANTKEEPER_ENTITY_SYSTEM_TERRAIN_HPP
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#define ANTKEEPER_ENTITY_SYSTEM_TERRAIN_HPP
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#include "entity/systems/updatable.hpp"
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#include "entity/components/terrain.hpp"
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#include "entity/id.hpp"
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namespace entity {
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namespace system {
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class terrain: public updatable
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{
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public:
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terrain(entity::registry& registry);
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~terrain();
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virtual void update(double t, double dt);
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/**
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* Sets the number of subdivisions for a patch.
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*
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* @param n Number of subdivisions.
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*/
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void set_patch_subdivisions(std::uint8_t n);
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private:
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void on_terrain_construct(entity::registry& registry, entity::id entity_id, entity::component::terrain& component);
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void on_terrain_destroy(entity::registry& registry, entity::id entity_id);
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void generate_patch();
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std::uint8_t patch_subdivisions;
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std::size_t patch_vertex_size;
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std::size_t patch_vertex_count;
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float* patch_vertex_data;
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};
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} // namespace system
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} // namespace entity
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#endif // ANTKEEPER_ENTITY_SYSTEM_TERRAIN_HPP
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