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godot/scene/resources/world.cpp
Rémi Verschelde c7bc44d5ad Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
2017-01-01 22:03:33 +01:00

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/*************************************************************************/
/* world.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 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 "scene/3d/camera.h"
#include "scene/3d/visibility_notifier.h"
#include "scene/3d/spatial_indexer.h"
#include "scene/scene_string_names.h"
#include "octree.h"
#include "camera_matrix.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.ptr(),cull.size());
VisibilityNotifier**ptr=cull.ptr();
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;
}
RID World::get_sound_space() const{
return sound_space;
}
void World::set_environment(const Ref<Environment>& p_environment) {
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());
}
Ref<Environment> World::get_environment() const {
return environment;
}
PhysicsDirectSpaceState *World::get_direct_space_state() {
return PhysicsServer::get_singleton()->space_get_direct_state(space);
}
void World::_bind_methods() {
ObjectTypeDB::bind_method(_MD("get_space"),&World::get_space);
ObjectTypeDB::bind_method(_MD("get_scenario"),&World::get_scenario);
ObjectTypeDB::bind_method(_MD("get_sound_space"),&World::get_sound_space);
ObjectTypeDB::bind_method(_MD("set_environment","env:Environment"),&World::set_environment);
ObjectTypeDB::bind_method(_MD("get_environment:Environment"),&World::get_environment);
ObjectTypeDB::bind_method(_MD("get_direct_space_state:PhysicsDirectSpaceState"),&World::get_direct_space_state);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"environment",PROPERTY_HINT_RESOURCE_TYPE,"Environment"),_SCS("set_environment"),_SCS("get_environment"));
}
World::World() {
space = PhysicsServer::get_singleton()->space_create();
scenario = VisualServer::get_singleton()->scenario_create();
sound_space = SpatialSoundServer::get_singleton()->space_create();
PhysicsServer::get_singleton()->space_set_active(space,true);
PhysicsServer::get_singleton()->area_set_param(space,PhysicsServer::AREA_PARAM_GRAVITY,GLOBAL_DEF("physics/default_gravity",9.8));
PhysicsServer::get_singleton()->area_set_param(space,PhysicsServer::AREA_PARAM_GRAVITY_VECTOR,GLOBAL_DEF("physics/default_gravity_vector",Vector3(0,-1,0)));
PhysicsServer::get_singleton()->area_set_param(space,PhysicsServer::AREA_PARAM_LINEAR_DAMP,GLOBAL_DEF("physics/default_linear_damp",0.1));
PhysicsServer::get_singleton()->area_set_param(space,PhysicsServer::AREA_PARAM_ANGULAR_DAMP,GLOBAL_DEF("physics/default_angular_damp",0.1));
#ifdef _3D_DISABLED
indexer = NULL;
#else
indexer = memnew( SpatialIndexer );
#endif
}
World::~World() {
PhysicsServer::get_singleton()->free(space);
VisualServer::get_singleton()->free(scenario);
SpatialSoundServer::get_singleton()->free(sound_space);
#ifndef _3D_DISABLED
memdelete( indexer );
#endif
}
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