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virtualx-engine/scene/resources/world.cpp
Rémi Verschelde 49646383f1
Update copyright statements to 2021 
Happy new year to the wonderful Godot community!

2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.

We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)

Here's to a great year 2021 for all Godot users 🎆

(cherry picked from commit b5334d14f7)
2021-01-13 16:17:06 +01:00

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/*************************************************************************/
/* world.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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"
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++;
Camera *c = E->key();
Vector<Plane> planes = c->get_frustum();
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
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;
}
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("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::OBJECT, "direct_space_state", PROPERTY_HINT_RESOURCE_TYPE, "PhysicsDirectSpaceState", 0), "", "get_direct_space_state");
}
World::World() {
space = PhysicsServer::get_singleton()->space_create();
scenario = 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"));
#ifdef _3D_DISABLED
indexer = NULL;
#else
indexer = memnew(SpatialIndexer);
#endif
}
World::~World() {
PhysicsServer::get_singleton()->free(space);
VisualServer::get_singleton()->free(scenario);
#ifndef _3D_DISABLED
memdelete(indexer);
#endif
}
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