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virtualx-engine/modules/gridmap/grid_map.h
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all 
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

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/**************************************************************************/
/* grid_map.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef GRID_MAP_H
#define GRID_MAP_H
#include "scene/3d/node_3d.h"
#include "scene/resources/mesh_library.h"
#include "scene/resources/multimesh.h"
//heh heh, godotsphir!! this shares no code and the design is completely different with previous projects i've done..
//should scale better with hardware that supports instancing
class PhysicsMaterial;
class GridMap : public Node3D {
GDCLASS(GridMap, Node3D);
enum {
MAP_DIRTY_TRANSFORMS = 1,
MAP_DIRTY_INSTANCES = 2,
};
union IndexKey {
struct {
int16_t x;
int16_t y;
int16_t z;
};
uint64_t key = 0;
static uint32_t hash(const IndexKey &p_key) {
return hash_one_uint64(p_key.key);
}
_FORCE_INLINE_ bool operator<(const IndexKey &p_key) const {
return key < p_key.key;
}
_FORCE_INLINE_ bool operator==(const IndexKey &p_key) const {
return key == p_key.key;
}
_FORCE_INLINE_ operator Vector3i() const {
return Vector3i(x, y, z);
}
IndexKey(Vector3i p_vector) {
x = (int16_t)p_vector.x;
y = (int16_t)p_vector.y;
z = (int16_t)p_vector.z;
}
IndexKey() {}
};
/**
* @brief A Cell is a single cell in the cube map space; it is defined by its coordinates and the populating Item, identified by int id.
*/
union Cell {
struct {
unsigned int item : 16;
unsigned int rot : 5;
unsigned int layer : 8;
};
uint32_t cell = 0;
};
/**
* @brief An Octant is a prism containing Cells, and possibly belonging to an Area.
* A GridMap can have multiple Octants.
*/
struct Octant {
struct NavigationCell {
RID region;
Transform3D xform;
RID navigation_mesh_debug_instance;
uint32_t navigation_layers = 1;
};
struct MultimeshInstance {
RID instance;
RID multimesh;
struct Item {
int index = 0;
Transform3D transform;
IndexKey key;
};
Vector<Item> items; //tools only, for changing visibility
};
Vector<MultimeshInstance> multimesh_instances;
HashSet<IndexKey> cells;
RID collision_debug;
RID collision_debug_instance;
#ifdef DEBUG_ENABLED
RID navigation_debug_edge_connections_instance;
Ref<ArrayMesh> navigation_debug_edge_connections_mesh;
#endif // DEBUG_ENABLED
bool dirty = false;
RID static_body;
HashMap<IndexKey, NavigationCell> navigation_cell_ids;
};
union OctantKey {
struct {
int16_t x;
int16_t y;
int16_t z;
int16_t empty;
};
uint64_t key = 0;
static uint32_t hash(const OctantKey &p_key) {
return hash_one_uint64(p_key.key);
}
_FORCE_INLINE_ bool operator==(const OctantKey &p_key) const {
return key == p_key.key;
}
//OctantKey(const IndexKey& p_k, int p_item) { indexkey=p_k.key; item=p_item; }
OctantKey() {}
};
uint32_t collision_layer = 1;
uint32_t collision_mask = 1;
real_t collision_priority = 1.0;
Ref<PhysicsMaterial> physics_material;
bool bake_navigation = false;
RID map_override;
uint32_t navigation_layers = 1;
Transform3D last_transform;
bool _in_tree = false;
Vector3 cell_size = Vector3(2, 2, 2);
int octant_size = 8;
bool center_x = true;
bool center_y = true;
bool center_z = true;
float cell_scale = 1.0;
bool recreating_octants = false;
Ref<MeshLibrary> mesh_library;
HashMap<OctantKey, Octant *, OctantKey> octant_map;
HashMap<IndexKey, Cell, IndexKey> cell_map;
void _recreate_octant_data();
struct BakeLight {
RS::LightType type = RS::LightType::LIGHT_DIRECTIONAL;
Vector3 pos;
Vector3 dir;
float param[RS::LIGHT_PARAM_MAX] = {};
};
_FORCE_INLINE_ Vector3 _octant_get_offset(const OctantKey &p_key) const {
return Vector3(p_key.x, p_key.y, p_key.z) * cell_size * octant_size;
}
void _update_physics_bodies_collision_properties();
void _octant_enter_world(const OctantKey &p_key);
void _octant_exit_world(const OctantKey &p_key);
bool _octant_update(const OctantKey &p_key);
void _octant_clean_up(const OctantKey &p_key);
void _octant_transform(const OctantKey &p_key);
#ifdef DEBUG_ENABLED
void _update_octant_navigation_debug_edge_connections_mesh(const OctantKey &p_key);
void _navigation_map_changed(RID p_map);
void _update_navigation_debug_edge_connections();
#endif // DEBUG_ENABLED
bool awaiting_update = false;
void _queue_octants_dirty();
void _update_octants_callback();
void resource_changed(const Ref<Resource> &p_res);
void _clear_internal();
Vector3 _get_offset() const;
struct BakedMesh {
Ref<Mesh> mesh;
RID instance;
};
Vector<BakedMesh> baked_meshes;
protected:
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 _notification(int p_what);
void _update_visibility();
static void _bind_methods();
public:
enum {
INVALID_CELL_ITEM = -1
};
void set_collision_layer(uint32_t p_layer);
uint32_t get_collision_layer() const;
void set_collision_mask(uint32_t p_mask);
uint32_t get_collision_mask() const;
void set_collision_layer_value(int p_layer_number, bool p_value);
bool get_collision_layer_value(int p_layer_number) const;
void set_collision_mask_value(int p_layer_number, bool p_value);
bool get_collision_mask_value(int p_layer_number) const;
void set_collision_priority(real_t p_priority);
real_t get_collision_priority() const;
void set_physics_material(Ref<PhysicsMaterial> p_material);
Ref<PhysicsMaterial> get_physics_material() const;
Array get_collision_shapes() const;
void set_bake_navigation(bool p_bake_navigation);
bool is_baking_navigation();
void set_navigation_map(RID p_navigation_map);
RID get_navigation_map() const;
void set_mesh_library(const Ref<MeshLibrary> &p_mesh_library);
Ref<MeshLibrary> get_mesh_library() const;
void set_cell_size(const Vector3 &p_size);
Vector3 get_cell_size() const;
void set_octant_size(int p_size);
int get_octant_size() const;
void set_center_x(bool p_enable);
bool get_center_x() const;
void set_center_y(bool p_enable);
bool get_center_y() const;
void set_center_z(bool p_enable);
bool get_center_z() const;
void set_cell_item(const Vector3i &p_position, int p_item, int p_rot = 0);
int get_cell_item(const Vector3i &p_position) const;
int get_cell_item_orientation(const Vector3i &p_position) const;
Basis get_cell_item_basis(const Vector3i &p_position) const;
Basis get_basis_with_orthogonal_index(int p_index) const;
int get_orthogonal_index_from_basis(const Basis &p_basis) const;
Vector3i local_to_map(const Vector3 &p_local_position) const;
Vector3 map_to_local(const Vector3i &p_map_position) const;
void set_cell_scale(float p_scale);
float get_cell_scale() const;
TypedArray<Vector3i> get_used_cells() const;
TypedArray<Vector3i> get_used_cells_by_item(int p_item) const;
Array get_meshes() const;
void clear_baked_meshes();
void make_baked_meshes(bool p_gen_lightmap_uv = false, float p_lightmap_uv_texel_size = 0.1);
void clear();
Array get_bake_meshes();
RID get_bake_mesh_instance(int p_idx);
GridMap();
~GridMap();
};
#endif // GRID_MAP_H
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