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virtualx-engine/scene/resources/world.cpp
Rémi Verschelde 1426cd3b3a
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".

Backported from #70885.
2023-01-10 15:26:54 +01:00

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/**************************************************************************/
/* world.cpp */
/**************************************************************************/
/* 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. */
/**************************************************************************/
#include "world.h"
#include "core/math/camera_matrix.h"
#include "core/math/octree.h"
#include "scene/3d/camera.h"
#include "scene/3d/visibility_notifier.h"
#include "scene/scene_string_names.h"
#include "servers/navigation_server.h"
struct SpatialIndexer {
Octree<VisibilityNotifier> octree;
struct NotifierData {
AABB aabb;
OctreeElementID id;
};
Map<VisibilityNotifier *, NotifierData> notifiers;
struct CameraData {
Map<VisibilityNotifier *, uint64_t> notifiers;
};
Map<Camera *, CameraData> cameras;
enum {
VISIBILITY_CULL_MAX = 32768
};
Vector<VisibilityNotifier *> cull;
bool changed;
uint64_t pass;
uint64_t last_frame;
void _notifier_add(VisibilityNotifier *p_notifier, const AABB &p_rect) {
ERR_FAIL_COND(notifiers.has(p_notifier));
notifiers[p_notifier].aabb = p_rect;
notifiers[p_notifier].id = octree.create(p_notifier, p_rect);
changed = true;
}
void _notifier_update(VisibilityNotifier *p_notifier, const AABB &p_rect) {
Map<VisibilityNotifier *, NotifierData>::Element *E = notifiers.find(p_notifier);
ERR_FAIL_COND(!E);
if (E->get().aabb == p_rect) {
return;
}
E->get().aabb = p_rect;
octree.move(E->get().id, E->get().aabb);
changed = true;
}
void _notifier_remove(VisibilityNotifier *p_notifier) {
Map<VisibilityNotifier *, NotifierData>::Element *E = notifiers.find(p_notifier);
ERR_FAIL_COND(!E);
octree.erase(E->get().id);
notifiers.erase(p_notifier);
List<Camera *> removed;
for (Map<Camera *, CameraData>::Element *F = cameras.front(); F; F = F->next()) {
Map<VisibilityNotifier *, uint64_t>::Element *G = F->get().notifiers.find(p_notifier);
if (G) {
F->get().notifiers.erase(G);
removed.push_back(F->key());
}
}
while (!removed.empty()) {
p_notifier->_exit_camera(removed.front()->get());
removed.pop_front();
}
changed = true;
}
void _add_camera(Camera *p_camera) {
ERR_FAIL_COND(cameras.has(p_camera));
CameraData vd;
cameras[p_camera] = vd;
changed = true;
}
void _update_camera(Camera *p_camera) {
Map<Camera *, CameraData>::Element *E = cameras.find(p_camera);
ERR_FAIL_COND(!E);
changed = true;
}
void _remove_camera(Camera *p_camera) {
ERR_FAIL_COND(!cameras.has(p_camera));
List<VisibilityNotifier *> removed;
for (Map<VisibilityNotifier *, uint64_t>::Element *E = cameras[p_camera].notifiers.front(); E; E = E->next()) {
removed.push_back(E->key());
}
while (!removed.empty()) {
removed.front()->get()->_exit_camera(p_camera);
removed.pop_front();
}
cameras.erase(p_camera);
}
void _update(uint64_t p_frame) {
if (p_frame == last_frame) {
return;
}
last_frame = p_frame;
if (!changed) {
return;
}
for (Map<Camera *, CameraData>::Element *E = cameras.front(); E; E = E->next()) {
pass++;
// prepare camera info
Camera *c = E->key();
Vector3 cam_pos = c->get_global_transform().origin;
Vector<Plane> planes = c->get_frustum();
bool cam_is_ortho = c->get_projection() == Camera::PROJECTION_ORTHOGONAL;
int culled = octree.cull_convex(planes, cull.ptrw(), cull.size());
VisibilityNotifier **ptr = cull.ptrw();
List<VisibilityNotifier *> added;
List<VisibilityNotifier *> removed;
for (int i = 0; i < culled; i++) {
//notifiers in frustum
// check and remove notifiers that have a max range
VisibilityNotifier &nt = *ptr[i];
if (nt.is_max_distance_active() && !cam_is_ortho) {
Vector3 offset = nt.get_world_aabb_center() - cam_pos;
if ((offset.length_squared() >= nt.get_max_distance_squared()) && !nt.inside_max_distance_leadin()) {
// unordered remove
cull.set(i, cull[culled - 1]);
culled--;
i--;
continue;
}
}
Map<VisibilityNotifier *, uint64_t>::Element *H = E->get().notifiers.find(ptr[i]);
if (!H) {
E->get().notifiers.insert(ptr[i], pass);
added.push_back(ptr[i]);
} else {
H->get() = pass;
}
}
for (Map<VisibilityNotifier *, uint64_t>::Element *F = E->get().notifiers.front(); F; F = F->next()) {
if (F->get() != pass) {
removed.push_back(F->key());
}
}
while (!added.empty()) {
added.front()->get()->_enter_camera(E->key());
added.pop_front();
}
while (!removed.empty()) {
E->get().notifiers.erase(removed.front()->get());
removed.front()->get()->_exit_camera(E->key());
removed.pop_front();
}
}
changed = false;
}
SpatialIndexer() {
pass = 0;
last_frame = 0;
changed = false;
cull.resize(VISIBILITY_CULL_MAX);
}
};
void World::_register_camera(Camera *p_camera) {
#ifndef _3D_DISABLED
indexer->_add_camera(p_camera);
#endif
}
void World::_update_camera(Camera *p_camera) {
#ifndef _3D_DISABLED
indexer->_update_camera(p_camera);
#endif
}
void World::_remove_camera(Camera *p_camera) {
#ifndef _3D_DISABLED
indexer->_remove_camera(p_camera);
#endif
}
void World::_register_notifier(VisibilityNotifier *p_notifier, const AABB &p_rect) {
#ifndef _3D_DISABLED
indexer->_notifier_add(p_notifier, p_rect);
#endif
}
void World::_update_notifier(VisibilityNotifier *p_notifier, const AABB &p_rect) {
#ifndef _3D_DISABLED
indexer->_notifier_update(p_notifier, p_rect);
#endif
}
void World::_remove_notifier(VisibilityNotifier *p_notifier) {
#ifndef _3D_DISABLED
indexer->_notifier_remove(p_notifier);
#endif
}
void World::_update(uint64_t p_frame) {
#ifndef _3D_DISABLED
indexer->_update(p_frame);
#endif
}
RID World::get_space() const {
return space;
}
RID World::get_scenario() const {
return scenario;
}
RID World::get_navigation_map() const {
return navigation_map;
}
void World::set_environment(const Ref<Environment> &p_environment) {
if (environment == p_environment) {
return;
}
environment = p_environment;
if (environment.is_valid()) {
VS::get_singleton()->scenario_set_environment(scenario, environment->get_rid());
} else {
VS::get_singleton()->scenario_set_environment(scenario, RID());
}
emit_changed();
}
Ref<Environment> World::get_environment() const {
return environment;
}
void World::set_fallback_environment(const Ref<Environment> &p_environment) {
if (fallback_environment == p_environment) {
return;
}
fallback_environment = p_environment;
if (fallback_environment.is_valid()) {
VS::get_singleton()->scenario_set_fallback_environment(scenario, p_environment->get_rid());
} else {
VS::get_singleton()->scenario_set_fallback_environment(scenario, RID());
}
emit_changed();
}
Ref<Environment> World::get_fallback_environment() const {
return fallback_environment;
}
PhysicsDirectSpaceState *World::get_direct_space_state() {
return PhysicsServer::get_singleton()->space_get_direct_state(space);
}
void World::get_camera_list(List<Camera *> *r_cameras) {
for (Map<Camera *, SpatialIndexer::CameraData>::Element *E = indexer->cameras.front(); E; E = E->next()) {
r_cameras->push_back(E->key());
}
}
void World::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_space"), &World::get_space);
ClassDB::bind_method(D_METHOD("get_scenario"), &World::get_scenario);
ClassDB::bind_method(D_METHOD("get_navigation_map"), &World::get_navigation_map);
ClassDB::bind_method(D_METHOD("set_environment", "env"), &World::set_environment);
ClassDB::bind_method(D_METHOD("get_environment"), &World::get_environment);
ClassDB::bind_method(D_METHOD("set_fallback_environment", "env"), &World::set_fallback_environment);
ClassDB::bind_method(D_METHOD("get_fallback_environment"), &World::get_fallback_environment);
ClassDB::bind_method(D_METHOD("get_direct_space_state"), &World::get_direct_space_state);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "environment", PROPERTY_HINT_RESOURCE_TYPE, "Environment"), "set_environment", "get_environment");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "fallback_environment", PROPERTY_HINT_RESOURCE_TYPE, "Environment"), "set_fallback_environment", "get_fallback_environment");
ADD_PROPERTY(PropertyInfo(Variant::_RID, "space", PROPERTY_HINT_NONE, "", 0), "", "get_space");
ADD_PROPERTY(PropertyInfo(Variant::_RID, "scenario", PROPERTY_HINT_NONE, "", 0), "", "get_scenario");
ADD_PROPERTY(PropertyInfo(Variant::_RID, "navigation_map", PROPERTY_HINT_NONE, "", 0), "", "get_navigation_map");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "direct_space_state", PROPERTY_HINT_RESOURCE_TYPE, "PhysicsDirectSpaceState", 0), "", "get_direct_space_state");
}
World::World() {
space = RID_PRIME(PhysicsServer::get_singleton()->space_create());
scenario = RID_PRIME(VisualServer::get_singleton()->scenario_create());
PhysicsServer::get_singleton()->space_set_active(space, true);
PhysicsServer::get_singleton()->area_set_param(space, PhysicsServer::AREA_PARAM_GRAVITY, GLOBAL_DEF("physics/3d/default_gravity", 9.8));
PhysicsServer::get_singleton()->area_set_param(space, PhysicsServer::AREA_PARAM_GRAVITY_VECTOR, GLOBAL_DEF("physics/3d/default_gravity_vector", Vector3(0, -1, 0)));
PhysicsServer::get_singleton()->area_set_param(space, PhysicsServer::AREA_PARAM_LINEAR_DAMP, GLOBAL_DEF("physics/3d/default_linear_damp", 0.1));
ProjectSettings::get_singleton()->set_custom_property_info("physics/3d/default_linear_damp", PropertyInfo(Variant::REAL, "physics/3d/default_linear_damp", PROPERTY_HINT_RANGE, "-1,100,0.001,or_greater"));
PhysicsServer::get_singleton()->area_set_param(space, PhysicsServer::AREA_PARAM_ANGULAR_DAMP, GLOBAL_DEF("physics/3d/default_angular_damp", 0.1));
ProjectSettings::get_singleton()->set_custom_property_info("physics/3d/default_angular_damp", PropertyInfo(Variant::REAL, "physics/3d/default_angular_damp", PROPERTY_HINT_RANGE, "-1,100,0.001,or_greater"));
// Create default navigation map
navigation_map = NavigationServer::get_singleton()->map_create();
NavigationServer::get_singleton()->map_set_active(navigation_map, true);
NavigationServer::get_singleton()->map_set_up(navigation_map, GLOBAL_DEF("navigation/3d/default_map_up", Vector3(0, 1, 0)));
NavigationServer::get_singleton()->map_set_cell_size(navigation_map, GLOBAL_DEF("navigation/3d/default_cell_size", 0.25));
NavigationServer::get_singleton()->map_set_cell_height(navigation_map, GLOBAL_DEF("navigation/3d/default_cell_height", 0.25));
NavigationServer::get_singleton()->map_set_edge_connection_margin(navigation_map, GLOBAL_DEF("navigation/3d/default_edge_connection_margin", 0.25));
#ifdef _3D_DISABLED
indexer = NULL;
#else
indexer = memnew(SpatialIndexer);
#endif
}
World::~World() {
PhysicsServer::get_singleton()->free(space);
VisualServer::get_singleton()->free(scenario);
NavigationServer::get_singleton()->free(navigation_map);
#ifndef _3D_DISABLED
memdelete(indexer);
#endif
}
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