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godot/scene/resources/world.cpp
Juan Linietsky 33b5c57199 Variant: Added 64-bit packed arrays, renamed Variant::REAL to FLOAT. 
- Renames PackedIntArray to PackedInt32Array.
- Renames PackedFloatArray to PackedFloat32Array.
- Adds PackedInt64Array and PackedFloat64Array.
- Renames Variant::REAL to Variant::FLOAT for consistency.

Packed arrays are for storing large amount of data and creating stuff like
meshes, buffers. textures, etc. Forcing them to be 64 is a huge waste of
memory. That said, many users requested the ability to have 64 bits packed
arrays for their games, so this is just an optional added type.

For Variant, the float datatype is always 64 bits, and exposed as `float`.

We still have `real_t` which is the datatype that can change from 32 to 64
bits depending on a compile flag (not entirely working right now, but that's
the idea). It affects math related datatypes and code only.

Neither Variant nor PackedArray make use of real_t, which is only intended
for math precision, so the term is removed from there to keep only float.
2020-02-25 12:55:53 +01:00

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/*************************************************************************/
/* world.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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;
}
void World::set_camera_effects(const Ref<CameraEffects> &p_camera_effects) {
camera_effects = p_camera_effects;
if (camera_effects.is_valid())
VS::get_singleton()->scenario_set_camera_effects(scenario, camera_effects->get_rid());
else
VS::get_singleton()->scenario_set_camera_effects(scenario, RID());
}
Ref<CameraEffects> World::get_camera_effects() const {
return camera_effects;
}
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("set_camera_effects", "env"), &World::set_camera_effects);
ClassDB::bind_method(D_METHOD("get_camera_effects"), &World::get_camera_effects);
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::OBJECT, "camera_effects", PROPERTY_HINT_RESOURCE_TYPE, "CameraEffects"), "set_camera_effects", "get_camera_effects");
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::FLOAT, "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::FLOAT, "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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