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godot/scene/3d/area.cpp

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/*************************************************************************/
/* area.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2015 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 "area.h"
#include "scene/scene_string_names.h"
#include "servers/physics_server.h"
void Area::set_space_override_mode(SpaceOverride p_mode) {
space_override=p_mode;
PhysicsServer::get_singleton()->area_set_space_override_mode(get_rid(),PhysicsServer::AreaSpaceOverrideMode(p_mode));
}
Area::SpaceOverride Area::get_space_override_mode() const{
return space_override;
}
void Area::set_gravity_is_point(bool p_enabled){
gravity_is_point=p_enabled;
PhysicsServer::get_singleton()->area_set_param(get_rid(),PhysicsServer::AREA_PARAM_GRAVITY_IS_POINT,p_enabled);
}
bool Area::is_gravity_a_point() const{
return gravity_is_point;
}
void Area::set_gravity_distance_scale(real_t p_scale){
gravity_distance_scale=p_scale;
PhysicsServer::get_singleton()->area_set_param(get_rid(),PhysicsServer::AREA_PARAM_GRAVITY_DISTANCE_SCALE,p_scale);
}
real_t Area::get_gravity_distance_scale() const{
return gravity_distance_scale;
}
void Area::set_gravity_vector(const Vector3& p_vec){
gravity_vec=p_vec;
PhysicsServer::get_singleton()->area_set_param(get_rid(),PhysicsServer::AREA_PARAM_GRAVITY_VECTOR,p_vec);
}
Vector3 Area::get_gravity_vector() const{
return gravity_vec;
}
void Area::set_gravity(real_t p_gravity){
gravity=p_gravity;
PhysicsServer::get_singleton()->area_set_param(get_rid(),PhysicsServer::AREA_PARAM_GRAVITY,p_gravity);
}
real_t Area::get_gravity() const{
return gravity;
}
void Area::set_density(real_t p_density){
density=p_density;
PhysicsServer::get_singleton()->area_set_param(get_rid(),PhysicsServer::AREA_PARAM_DENSITY,p_density);
}
real_t Area::get_density() const{
return density;
}
void Area::set_priority(real_t p_priority){
priority=p_priority;
PhysicsServer::get_singleton()->area_set_param(get_rid(),PhysicsServer::AREA_PARAM_PRIORITY,p_priority);
}
real_t Area::get_priority() const{
return priority;
}
void Area::_body_enter_tree(ObjectID p_id) {
Object *obj = ObjectDB::get_instance(p_id);
Node *node = obj ? obj->cast_to<Node>() : NULL;
ERR_FAIL_COND(!node);
Map<ObjectID,BodyState>::Element *E=body_map.find(p_id);
ERR_FAIL_COND(!E);
ERR_FAIL_COND(E->get().in_tree);
E->get().in_tree=true;
emit_signal(SceneStringNames::get_singleton()->body_enter,node);
for(int i=0;i<E->get().shapes.size();i++) {
emit_signal(SceneStringNames::get_singleton()->body_enter_shape,p_id,node,E->get().shapes[i].body_shape,E->get().shapes[i].area_shape);
}
}
void Area::_body_exit_tree(ObjectID p_id) {
Object *obj = ObjectDB::get_instance(p_id);
Node *node = obj ? obj->cast_to<Node>() : NULL;
ERR_FAIL_COND(!node);
Map<ObjectID,BodyState>::Element *E=body_map.find(p_id);
ERR_FAIL_COND(!E);
ERR_FAIL_COND(!E->get().in_tree);
E->get().in_tree=false;
emit_signal(SceneStringNames::get_singleton()->body_exit,node);
for(int i=0;i<E->get().shapes.size();i++) {
emit_signal(SceneStringNames::get_singleton()->body_exit_shape,p_id,node,E->get().shapes[i].body_shape,E->get().shapes[i].area_shape);
}
}
void Area::_body_inout(int p_status,const RID& p_body, int p_instance, int p_body_shape,int p_area_shape) {
bool body_in = p_status==PhysicsServer::AREA_BODY_ADDED;
ObjectID objid=p_instance;
Object *obj = ObjectDB::get_instance(objid);
Node *node = obj ? obj->cast_to<Node>() : NULL;
Map<ObjectID,BodyState>::Element *E=body_map.find(objid);
ERR_FAIL_COND(!body_in && !E);
locked=true;
if (body_in) {
if (!E) {
E = body_map.insert(objid,BodyState());
E->get().rc=0;
E->get().in_tree=node && node->is_inside_tree();
if (node) {
node->connect(SceneStringNames::get_singleton()->enter_tree,this,SceneStringNames::get_singleton()->_body_enter_tree,make_binds(objid));
node->connect(SceneStringNames::get_singleton()->exit_tree,this,SceneStringNames::get_singleton()->_body_exit_tree,make_binds(objid));
if (E->get().in_tree) {
emit_signal(SceneStringNames::get_singleton()->body_enter,node);
}
}
}
E->get().rc++;
if (node)
E->get().shapes.insert(ShapePair(p_body_shape,p_area_shape));
if (E->get().in_tree) {
emit_signal(SceneStringNames::get_singleton()->body_enter_shape,objid,node,p_body_shape,p_area_shape);
}
} else {
E->get().rc--;
if (node)
E->get().shapes.erase(ShapePair(p_body_shape,p_area_shape));
bool eraseit=false;
if (E->get().rc==0) {
if (node) {
node->disconnect(SceneStringNames::get_singleton()->enter_tree,this,SceneStringNames::get_singleton()->_body_enter_tree);
node->disconnect(SceneStringNames::get_singleton()->exit_tree,this,SceneStringNames::get_singleton()->_body_exit_tree);
if (E->get().in_tree)
emit_signal(SceneStringNames::get_singleton()->body_exit,obj);
}
eraseit=true;
}
if (node && E->get().in_tree) {
emit_signal(SceneStringNames::get_singleton()->body_exit_shape,objid,obj,p_body_shape,p_area_shape);
}
if (eraseit)
body_map.erase(E);
}
locked=false;
}
void Area::_clear_monitoring() {
if (locked) {
ERR_EXPLAIN("This function can't be used during the in/out signal.");
}
ERR_FAIL_COND(locked);
Map<ObjectID,BodyState> bmcopy = body_map;
body_map.clear();
//disconnect all monitored stuff
for (Map<ObjectID,BodyState>::Element *E=bmcopy.front();E;E=E->next()) {
Object *obj = ObjectDB::get_instance(E->key());
Node *node = obj ? obj->cast_to<Node>() : NULL;
ERR_CONTINUE(!node);
if (!E->get().in_tree)
continue;
for(int i=0;i<E->get().shapes.size();i++) {
emit_signal(SceneStringNames::get_singleton()->body_exit_shape,E->key(),node,E->get().shapes[i].body_shape,E->get().shapes[i].area_shape);
}
emit_signal(SceneStringNames::get_singleton()->body_exit,obj);
node->disconnect(SceneStringNames::get_singleton()->enter_tree,this,SceneStringNames::get_singleton()->_body_enter_tree);
node->disconnect(SceneStringNames::get_singleton()->exit_tree,this,SceneStringNames::get_singleton()->_body_exit_tree);
}
}
void Area::_notification(int p_what) {
if (p_what==NOTIFICATION_EXIT_TREE) {
_clear_monitoring();
}
}
void Area::set_enable_monitoring(bool p_enable) {
if (locked) {
ERR_EXPLAIN("This function can't be used during the in/out signal.");
}
ERR_FAIL_COND(locked);
if (p_enable==monitoring)
return;
monitoring=p_enable;
if (monitoring) {
PhysicsServer::get_singleton()->area_set_monitor_callback(get_rid(),this,"_body_inout");
} else {
PhysicsServer::get_singleton()->area_set_monitor_callback(get_rid(),NULL,StringName());
_clear_monitoring();
}
}
bool Area::is_monitoring_enabled() const {
return monitoring;
}
Array Area::get_overlapping_bodies() const {
ERR_FAIL_COND_V(!monitoring,Array());
Array ret;
ret.resize(body_map.size());
int idx=0;
for (const Map<ObjectID,BodyState>::Element *E=body_map.front();E;E=E->next()) {
Object *obj = ObjectDB::get_instance(E->key());
if (!obj) {
ret.resize( ret.size() -1 ); //ops
} else {
ret[idx++]=obj;
}
}
return ret;
}
void Area::_bind_methods() {
ObjectTypeDB::bind_method(_MD("_body_enter_tree","id"),&Area::_body_enter_tree);
ObjectTypeDB::bind_method(_MD("_body_exit_tree","id"),&Area::_body_exit_tree);
ObjectTypeDB::bind_method(_MD("set_space_override_mode","enable"),&Area::set_space_override_mode);
ObjectTypeDB::bind_method(_MD("get_space_override_mode"),&Area::get_space_override_mode);
ObjectTypeDB::bind_method(_MD("set_gravity_is_point","enable"),&Area::set_gravity_is_point);
ObjectTypeDB::bind_method(_MD("is_gravity_a_point"),&Area::is_gravity_a_point);
ObjectTypeDB::bind_method(_MD("set_gravity_distance_scale","distance_scale"),&Area::set_gravity_distance_scale);
ObjectTypeDB::bind_method(_MD("get_gravity_distance_scale"),&Area::get_gravity_distance_scale);
ObjectTypeDB::bind_method(_MD("set_gravity_vector","vector"),&Area::set_gravity_vector);
ObjectTypeDB::bind_method(_MD("get_gravity_vector"),&Area::get_gravity_vector);
ObjectTypeDB::bind_method(_MD("set_gravity","gravity"),&Area::set_gravity);
ObjectTypeDB::bind_method(_MD("get_gravity"),&Area::get_gravity);
ObjectTypeDB::bind_method(_MD("set_density","density"),&Area::set_density);
ObjectTypeDB::bind_method(_MD("get_density"),&Area::get_density);
ObjectTypeDB::bind_method(_MD("set_priority","priority"),&Area::set_priority);
ObjectTypeDB::bind_method(_MD("get_priority"),&Area::get_priority);
ObjectTypeDB::bind_method(_MD("set_enable_monitoring","enable"),&Area::set_enable_monitoring);
ObjectTypeDB::bind_method(_MD("is_monitoring_enabled"),&Area::is_monitoring_enabled);
ObjectTypeDB::bind_method(_MD("get_overlapping_bodies"),&Area::get_overlapping_bodies);
ObjectTypeDB::bind_method(_MD("_body_inout"),&Area::_body_inout);
ADD_SIGNAL( MethodInfo("body_enter_shape",PropertyInfo(Variant::INT,"body_id"),PropertyInfo(Variant::OBJECT,"body"),PropertyInfo(Variant::INT,"body_shape"),PropertyInfo(Variant::INT,"area_shape")));
ADD_SIGNAL( MethodInfo("body_exit_shape",PropertyInfo(Variant::INT,"body_id"),PropertyInfo(Variant::OBJECT,"body"),PropertyInfo(Variant::INT,"body_shape"),PropertyInfo(Variant::INT,"area_shape")));
ADD_SIGNAL( MethodInfo("body_enter",PropertyInfo(Variant::OBJECT,"body")));
ADD_SIGNAL( MethodInfo("body_exit",PropertyInfo(Variant::OBJECT,"body")));
ADD_PROPERTY( PropertyInfo(Variant::INT,"space_override",PROPERTY_HINT_ENUM,"Disabled,Combine,Replace"),_SCS("set_space_override_mode"),_SCS("get_space_override_mode"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"gravity_point"),_SCS("set_gravity_is_point"),_SCS("is_gravity_a_point"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"gravity_distance_scale", PROPERTY_HINT_RANGE,"0,1024,0.001"),_SCS("set_gravity_distance_scale"),_SCS("get_gravity_distance_scale"));
ADD_PROPERTY( PropertyInfo(Variant::VECTOR3,"gravity_vec"),_SCS("set_gravity_vector"),_SCS("get_gravity_vector"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"gravity",PROPERTY_HINT_RANGE,"-1024,1024,0.01"),_SCS("set_gravity"),_SCS("get_gravity"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"density",PROPERTY_HINT_RANGE,"0,1024,0.001"),_SCS("set_density"),_SCS("get_density"));
ADD_PROPERTY( PropertyInfo(Variant::INT,"priority",PROPERTY_HINT_RANGE,"0,128,1"),_SCS("set_priority"),_SCS("get_priority"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"monitoring"),_SCS("set_enable_monitoring"),_SCS("is_monitoring_enabled"));
}
Area::Area() : CollisionObject(PhysicsServer::get_singleton()->area_create(),true) {
space_override=SPACE_OVERRIDE_DISABLED;
set_gravity(9.8);;
locked=false;
set_gravity_vector(Vector3(0,-1,0));
gravity_is_point=false;
gravity_distance_scale=0;
density=0.1;
priority=0;
monitoring=false;
set_ray_pickable(false);
set_enable_monitoring(true);
}
Area::~Area() {
}
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