💿🐜 Antkeeper source code https://antkeeper.com
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  1. /*
  2. * Copyright (C) 2021 Christopher J. Howard
  3. *
  4. * This file is part of Antkeeper source code.
  5. *
  6. * Antkeeper source code is free software: you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation, either version 3 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * Antkeeper source code is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
  18. */
  19. #ifndef ANTKEEPER_ECS_TERRAIN_SYSTEM_HPP
  20. #define ANTKEEPER_ECS_TERRAIN_SYSTEM_HPP
  21. #include "entity-system.hpp"
  22. #include "ecs/components/terrain-component.hpp"
  23. #include "ecs/entity.hpp"
  24. #include "geom/mesh.hpp"
  25. class terrain;
  26. class resource_manager;
  27. class model;
  28. class image;
  29. namespace ecs {
  30. class terrain_system: public entity_system
  31. {
  32. public:
  33. terrain_system(ecs::registry& registry, ::resource_manager* resource_manager);
  34. ~terrain_system();
  35. virtual void update(double t, double dt);
  36. /**
  37. * Sets the size of a single terrain patch.
  38. */
  39. void set_patch_size(float size);
  40. private:
  41. geom::mesh* generate_terrain_mesh(float size, int subdivisions);
  42. model* generate_terrain_model(geom::mesh* terrain_mesh);
  43. void project_terrain_mesh(geom::mesh* terrain_mesh, const ecs::terrain_component& component);
  44. void update_terrain_model(model* terrain_model, geom::mesh* terrain_mesh);
  45. void on_terrain_construct(ecs::registry& registry, ecs::entity entity, ecs::terrain_component& component);
  46. void on_terrain_destroy(ecs::registry& registry, ecs::entity entity);
  47. resource_manager* resource_manager;
  48. float patch_size;
  49. float heightmap_size;
  50. float heightmap_scale;
  51. image* heightmap;
  52. };
  53. } // namespace ecs
  54. #endif // ANTKEEPER_ECS_TERRAIN_SYSTEM_HPP