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- /*
- * Copyright (C) 2021 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/>.
- */
-
- #ifndef ANTKEEPER_ECS_VEGETATION_SYSTEM_HPP
- #define ANTKEEPER_ECS_VEGETATION_SYSTEM_HPP
-
- #include "entity-system.hpp"
- #include "ecs/components/terrain-component.hpp"
- #include "ecs/entity.hpp"
- #include "scene/collection.hpp"
-
- class model;
-
- namespace ecs {
-
- /**
- * Places vegetation patches on terrain.
- */
- class vegetation_system: public entity_system
- {
- public:
- vegetation_system(ecs::registry& registry);
- ~vegetation_system();
- virtual void update(double t, double dt);
-
- /**
- * Sets the terrain patch size.
- *
- * @param size Size of the terrain patch.
- */
- void set_terrain_patch_size(float size);
-
- /**
- * Sets the vegetation patch size.
- *
- * @param subdivisions Number of times a terrain patch should be subdivided into vegetation patches.
- */
- void set_vegetation_patch_resolution(int subdivisions);
-
- void set_vegetation_density(float density);
-
- void set_vegetation_model(::model* model);
-
- void set_scene(scene::collection* collection);
-
- private:
- void on_terrain_construct(ecs::registry& registry, ecs::entity entity, ecs::terrain_component& component);
- void on_terrain_destroy(ecs::registry& registry, ecs::entity entity);
-
- float terrain_patch_size;
- float vegetation_patch_size;
- int vegetation_patch_columns;
- int vegetation_patch_rows;
- float vegetation_density;
- model* vegetation_model;
- scene::collection* scene_collection;
- };
-
- } // namespace ecs
-
- #endif // ANTKEEPER_ECS_VEGETATION_SYSTEM_HPP
-
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