godot_voxel/voxel_terrain.h

161 lines
4.4 KiB
C++

#ifndef VOXEL_TERRAIN_H
#define VOXEL_TERRAIN_H
#include "rect3i.h"
#include "vector3i.h"
#include "voxel_mesh_updater.h"
#include "voxel_provider.h"
#include "voxel_provider_thread.h"
#include "zprofiling.h"
#include <scene/3d/spatial.h>
class VoxelMap;
class VoxelLibrary;
// Infinite paged terrain made of voxel blocks.
// Voxels are polygonized around the viewer.
// Data is streamed using a VoxelProvider.
class VoxelTerrain : public Spatial {
GDCLASS(VoxelTerrain, Spatial)
public:
enum BlockDirtyState {
BLOCK_NONE,
BLOCK_LOAD,
BLOCK_UPDATE_NOT_SENT,
BLOCK_UPDATE_SENT,
BLOCK_IDLE
};
VoxelTerrain();
~VoxelTerrain();
void set_provider(Ref<VoxelProvider> provider);
Ref<VoxelProvider> get_provider() const;
void set_voxel_library(Ref<VoxelLibrary> library);
Ref<VoxelLibrary> get_voxel_library() const;
void make_block_dirty(Vector3i bpos);
//void make_blocks_dirty(Vector3i min, Vector3i size);
void make_voxel_dirty(Vector3i pos);
void make_area_dirty(Rect3i box);
bool is_block_dirty(Vector3i bpos) const;
void set_generate_collisions(bool enabled);
bool get_generate_collisions() const { return _generate_collisions; }
int get_view_distance() const;
void set_view_distance(int distance_in_voxels);
void set_viewer_path(NodePath path);
NodePath get_viewer_path() const;
void set_material(int id, Ref<Material> material);
Ref<Material> get_material(int id) const;
bool is_smooth_meshing_enabled() const;
void set_smooth_meshing_enabled(bool enabled);
Ref<VoxelMap> get_map() { return _map; }
struct Stats {
VoxelMeshUpdater::Stats updater;
VoxelProviderThread::Stats provider;
uint32_t mesh_alloc_time;
int updated_blocks;
int dropped_provider_blocks;
int dropped_updater_blocks;
int remaining_main_thread_blocks;
uint64_t time_detect_required_blocks;
uint64_t time_send_load_requests;
uint64_t time_process_load_responses;
uint64_t time_send_update_requests;
uint64_t time_process_update_responses;
Stats() :
mesh_alloc_time(0),
updated_blocks(0),
dropped_provider_blocks(0),
dropped_updater_blocks(0),
remaining_main_thread_blocks(0),
time_detect_required_blocks(0),
time_send_load_requests(0),
time_process_load_responses(0),
time_send_update_requests(0),
time_process_update_responses(0) {}
};
protected:
void _notification(int p_what);
private:
bool _set(const StringName &p_name, const Variant &p_value);
bool _get(const StringName &p_name, Variant &r_ret) const;
void _get_property_list(List<PropertyInfo> *p_list) const;
void _process();
void make_all_view_dirty_deferred();
void reset_updater();
int get_block_padding() const;
Spatial *get_viewer(NodePath path) const;
void immerge_block(Vector3i bpos);
Dictionary get_statistics() const;
static void _bind_methods();
// Convenience
Vector3 _voxel_to_block_binding(Vector3 pos);
Vector3 _block_to_voxel_binding(Vector3 pos);
//void _force_load_blocks_binding(Vector3 center, Vector3 extents) { force_load_blocks(center, extents); }
void _make_voxel_dirty_binding(Vector3 pos) { make_voxel_dirty(pos); }
void _make_area_dirty_binding(AABB aabb);
Variant _raycast_binding(Vector3 origin, Vector3 direction, real_t max_distance);
void set_voxel(Vector3 pos, int value, int c);
int get_voxel(Vector3 pos, int c);
BlockDirtyState get_block_state(Vector3 p_bpos) const;
static void remove_positions_outside_box(Vector<Vector3i> &positions, Rect3i box, HashMap<Vector3i, BlockDirtyState, Vector3iHasher> &state_map);
private:
// Voxel storage
Ref<VoxelMap> _map;
// How many blocks to load around the viewer
int _view_distance_blocks;
// TODO Terrains only need to handle the visible portion of voxels, which reduces the bounds blocks to handle.
// Therefore, could a simple grid be better to use than a hashmap?
Vector<Vector3i> _blocks_pending_load;
Vector<Vector3i> _blocks_pending_update;
HashMap<Vector3i, BlockDirtyState, Vector3iHasher> _dirty_blocks; // TODO Rename _block_states
Vector<VoxelMeshUpdater::OutputBlock> _blocks_pending_main_thread_update;
Ref<VoxelProvider> _provider;
VoxelProviderThread *_provider_thread;
Ref<VoxelLibrary> _library;
VoxelMeshUpdater *_block_updater;
NodePath _viewer_path;
Vector3i _last_viewer_block_pos;
int _last_view_distance_blocks;
bool _generate_collisions;
bool _run_in_editor;
bool _smooth_meshing_enabled;
Ref<Material> _materials[VoxelMesher::MAX_MATERIALS];
Stats _stats;
};
VARIANT_ENUM_CAST(VoxelTerrain::BlockDirtyState)
#endif // VOXEL_TERRAIN_H