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virtualx-engine/scene/3d/visibility_notifier.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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/*************************************************************************/
/* visibility_notifier.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 "visibility_notifier.h"
#include "scene/scene_string_names.h"
#include "scene/3d/physics_body.h"
#include "scene/animation/animation_player.h"
#include "scene/scene_string_names.h"
void VisibilityNotifier::_enter_camera(Camera* p_camera) {
ERR_FAIL_COND(cameras.has(p_camera));
cameras.insert(p_camera);
if (cameras.size()==1) {
emit_signal(SceneStringNames::get_singleton()->enter_screen);
_screen_enter();
}
emit_signal(SceneStringNames::get_singleton()->enter_camera,p_camera);
}
void VisibilityNotifier::_exit_camera(Camera* p_camera){
ERR_FAIL_COND(!cameras.has(p_camera));
cameras.erase(p_camera);
emit_signal(SceneStringNames::get_singleton()->exit_camera,p_camera);
if (cameras.size()==0) {
emit_signal(SceneStringNames::get_singleton()->exit_screen);
_screen_exit();
}
}
void VisibilityNotifier::set_aabb(const AABB& p_aabb){
if (aabb==p_aabb)
return;
aabb=p_aabb;
if (is_inside_world()) {
get_world()->_update_notifier(this,get_global_transform().xform(aabb));
}
_change_notify("aabb");
update_gizmo();
}
AABB VisibilityNotifier::get_aabb() const{
return aabb;
}
void VisibilityNotifier::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_WORLD: {
get_world()->_register_notifier(this,get_global_transform().xform(aabb));
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
get_world()->_update_notifier(this,get_global_transform().xform(aabb));
} break;
case NOTIFICATION_EXIT_WORLD: {
get_world()->_remove_notifier(this);
} break;
}
}
bool VisibilityNotifier::is_on_screen() const {
return cameras.size()!=0;
}
void VisibilityNotifier::_bind_methods(){
ObjectTypeDB::bind_method(_MD("set_aabb","rect"),&VisibilityNotifier::set_aabb);
ObjectTypeDB::bind_method(_MD("get_aabb"),&VisibilityNotifier::get_aabb);
ObjectTypeDB::bind_method(_MD("is_on_screen"),&VisibilityNotifier::is_on_screen);
ADD_PROPERTY( PropertyInfo(Variant::_AABB,"aabb"),_SCS("set_aabb"),_SCS("get_aabb"));
ADD_SIGNAL( MethodInfo("enter_camera",PropertyInfo(Variant::OBJECT,"camera",PROPERTY_HINT_RESOURCE_TYPE,"Camera")) );
ADD_SIGNAL( MethodInfo("exit_camera",PropertyInfo(Variant::OBJECT,"camera",PROPERTY_HINT_RESOURCE_TYPE,"Camera")) );
ADD_SIGNAL( MethodInfo("enter_screen"));
ADD_SIGNAL( MethodInfo("exit_screen"));
}
VisibilityNotifier::VisibilityNotifier() {
aabb=AABB(Vector3(-1,-1,-1),Vector3(2,2,2));
}
//////////////////////////////////////
void VisibilityEnabler::_screen_enter() {
for(Map<Node*,Variant>::Element *E=nodes.front();E;E=E->next()) {
_change_node_state(E->key(),true);
}
visible=true;
}
void VisibilityEnabler::_screen_exit() {
for(Map<Node*,Variant>::Element *E=nodes.front();E;E=E->next()) {
_change_node_state(E->key(),false);
}
visible=false;
}
void VisibilityEnabler::_find_nodes(Node* p_node) {
bool add=false;
Variant meta;
if (enabler[ENABLER_FREEZE_BODIES]) {
RigidBody *rb = p_node->cast_to<RigidBody>();
if (rb && ((rb->get_mode()==RigidBody::MODE_CHARACTER || (rb->get_mode()==RigidBody::MODE_RIGID && !rb->is_able_to_sleep())))) {
add=true;
meta=rb->get_mode();
}
}
if (enabler[ENABLER_PAUSE_ANIMATIONS]) {
AnimationPlayer *ap = p_node->cast_to<AnimationPlayer>();
if (ap) {
add=true;
}
}
if (add) {
p_node->connect(SceneStringNames::get_singleton()->exit_tree,this,"_node_removed",varray(p_node),CONNECT_ONESHOT);
nodes[p_node]=meta;
_change_node_state(p_node,false);
}
for(int i=0;i<p_node->get_child_count();i++) {
Node *c = p_node->get_child(i);
if (c->get_filename()!=String())
continue; //skip, instance
_find_nodes(c);
}
}
void VisibilityEnabler::_notification(int p_what){
if (p_what==NOTIFICATION_ENTER_TREE) {
if (get_tree()->is_editor_hint())
return;
Node *from = this;
//find where current scene starts
while(from->get_parent() && from->get_filename()==String())
from=from->get_parent();
_find_nodes(from);
}
if (p_what==NOTIFICATION_EXIT_TREE) {
if (get_tree()->is_editor_hint())
return;
for (Map<Node*,Variant>::Element *E=nodes.front();E;E=E->next()) {
if (!visible)
_change_node_state(E->key(),true);
E->key()->disconnect(SceneStringNames::get_singleton()->exit_tree,this,"_node_removed");
}
nodes.clear();
}
}
void VisibilityEnabler::_change_node_state(Node* p_node,bool p_enabled) {
ERR_FAIL_COND(!nodes.has(p_node));
{
RigidBody *rb = p_node->cast_to<RigidBody>();
if (rb)
rb->set_sleeping(!p_enabled);
}
{
AnimationPlayer *ap=p_node->cast_to<AnimationPlayer>();
if (ap) {
ap->set_active(p_enabled);
}
}
}
void VisibilityEnabler::_node_removed(Node* p_node) {
if (!visible)
_change_node_state(p_node,true);
p_node->disconnect(SceneStringNames::get_singleton()->exit_tree,this,"_node_removed");
nodes.erase(p_node);
}
void VisibilityEnabler::_bind_methods(){
ObjectTypeDB::bind_method(_MD("set_enabler","enabler","enabled"),&VisibilityEnabler::set_enabler);
ObjectTypeDB::bind_method(_MD("is_enabler_enabled","enabler"),&VisibilityEnabler::is_enabler_enabled);
ObjectTypeDB::bind_method(_MD("_node_removed"),&VisibilityEnabler::_node_removed);
ADD_PROPERTYI( PropertyInfo(Variant::BOOL,"enabler/pause_animations"),_SCS("set_enabler"),_SCS("is_enabler_enabled"), ENABLER_PAUSE_ANIMATIONS );
ADD_PROPERTYI( PropertyInfo(Variant::BOOL,"enabler/freeze_bodies"),_SCS("set_enabler"),_SCS("is_enabler_enabled"), ENABLER_FREEZE_BODIES);
BIND_CONSTANT( ENABLER_FREEZE_BODIES );
BIND_CONSTANT( ENABLER_PAUSE_ANIMATIONS );
BIND_CONSTANT( ENABLER_MAX);
}
void VisibilityEnabler::set_enabler(Enabler p_enabler,bool p_enable){
ERR_FAIL_INDEX(p_enabler,ENABLER_MAX);
enabler[p_enabler]=p_enable;
}
bool VisibilityEnabler::is_enabler_enabled(Enabler p_enabler) const{
ERR_FAIL_INDEX_V(p_enabler,ENABLER_MAX,false);
return enabler[p_enabler];
}
VisibilityEnabler::VisibilityEnabler() {
for(int i=0;i<ENABLER_MAX;i++)
enabler[i]=true;
visible=false;
}
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