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abbea4d945
godot/scene/2d/area_2d.cpp
Juan Linietsky abbea4d945 UDP Fixes 
-=-=-=-=-

Curse the day I decided to port UDP code, as it ended up
being two nights of work.  At least It's done now (I hope).

-Fixed UDP Support, API seems stable
-Added UDP Chat demo (chat that can lose your packets, heh)
-Added helpers to areas and bodies to get list of collided bodies and contained bodies.
-Sped up screen/viewport capture code.
-Added code to save an image as PNG
-Small fix so scripts register their singletons after modules did.
2014-11-13 00:53:12 -03:00

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/*************************************************************************/
/* area_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 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_2d.h"
#include "scene/scene_string_names.h"
#include "servers/physics_2d_server.h"
void Area2D::set_space_override_mode(SpaceOverride p_mode) {
space_override=p_mode;
Physics2DServer::get_singleton()->area_set_space_override_mode(get_rid(),Physics2DServer::AreaSpaceOverrideMode(p_mode));
}
Area2D::SpaceOverride Area2D::get_space_override_mode() const{
return space_override;
}
void Area2D::set_gravity_is_point(bool p_enabled){
gravity_is_point=p_enabled;
Physics2DServer::get_singleton()->area_set_param(get_rid(),Physics2DServer::AREA_PARAM_GRAVITY_IS_POINT,p_enabled);
}
bool Area2D::is_gravity_a_point() const{
return gravity_is_point;
}
void Area2D::set_gravity_vector(const Vector2& p_vec){
gravity_vec=p_vec;
Physics2DServer::get_singleton()->area_set_param(get_rid(),Physics2DServer::AREA_PARAM_GRAVITY_VECTOR,p_vec);
}
Vector2 Area2D::get_gravity_vector() const{
return gravity_vec;
}
void Area2D::set_gravity(real_t p_gravity){
gravity=p_gravity;
Physics2DServer::get_singleton()->area_set_param(get_rid(),Physics2DServer::AREA_PARAM_GRAVITY,p_gravity);
}
real_t Area2D::get_gravity() const{
return gravity;
}
void Area2D::set_density(real_t p_density){
density=p_density;
Physics2DServer::get_singleton()->area_set_param(get_rid(),Physics2DServer::AREA_PARAM_DENSITY,p_density);
}
real_t Area2D::get_density() const{
return density;
}
void Area2D::set_priority(real_t p_priority){
priority=p_priority;
Physics2DServer::get_singleton()->area_set_param(get_rid(),Physics2DServer::AREA_PARAM_PRIORITY,p_priority);
}
real_t Area2D::get_priority() const{
return priority;
}
void Area2D::_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 Area2D::_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 Area2D::_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==Physics2DServer::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);
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 (!node || 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);
}
}
void Area2D::_clear_monitoring() {
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 Area2D::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_EXIT_TREE: {
_clear_monitoring();
} break;
}
}
void Area2D::set_enable_monitoring(bool p_enable) {
if (p_enable==monitoring)
return;
monitoring=p_enable;
if (monitoring) {
Physics2DServer::get_singleton()->area_set_monitor_callback(get_rid(),this,"_body_inout");
} else {
Physics2DServer::get_singleton()->area_set_monitor_callback(get_rid(),NULL,StringName());
_clear_monitoring();
}
}
bool Area2D::is_monitoring_enabled() const {
return monitoring;
}
Array Area2D::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 Area2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("_body_enter_tree","id"),&Area2D::_body_enter_tree);
ObjectTypeDB::bind_method(_MD("_body_exit_tree","id"),&Area2D::_body_exit_tree);
ObjectTypeDB::bind_method(_MD("set_space_override_mode","enable"),&Area2D::set_space_override_mode);
ObjectTypeDB::bind_method(_MD("get_space_override_mode"),&Area2D::get_space_override_mode);
ObjectTypeDB::bind_method(_MD("set_gravity_is_point","enable"),&Area2D::set_gravity_is_point);
ObjectTypeDB::bind_method(_MD("is_gravity_a_point"),&Area2D::is_gravity_a_point);
ObjectTypeDB::bind_method(_MD("set_gravity_vector","vector"),&Area2D::set_gravity_vector);
ObjectTypeDB::bind_method(_MD("get_gravity_vector"),&Area2D::get_gravity_vector);
ObjectTypeDB::bind_method(_MD("set_gravity","gravity"),&Area2D::set_gravity);
ObjectTypeDB::bind_method(_MD("get_gravity"),&Area2D::get_gravity);
ObjectTypeDB::bind_method(_MD("set_density","density"),&Area2D::set_density);
ObjectTypeDB::bind_method(_MD("get_density"),&Area2D::get_density);
ObjectTypeDB::bind_method(_MD("set_priority","priority"),&Area2D::set_priority);
ObjectTypeDB::bind_method(_MD("get_priority"),&Area2D::get_priority);
ObjectTypeDB::bind_method(_MD("set_enable_monitoring","enable"),&Area2D::set_enable_monitoring);
ObjectTypeDB::bind_method(_MD("is_monitoring_enabled"),&Area2D::is_monitoring_enabled);
ObjectTypeDB::bind_method(_MD("get_overlapping_bodies"),&Area2D::get_overlapping_bodies);
ObjectTypeDB::bind_method(_MD("_body_inout"),&Area2D::_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_PROPERTYNZ( 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::VECTOR2,"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_PROPERTYNZ( 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"));
}
Area2D::Area2D() : CollisionObject2D(Physics2DServer::get_singleton()->area_create(),true) {
space_override=SPACE_OVERRIDE_DISABLED;
set_gravity(98);;
set_gravity_vector(Vector2(0,1));
gravity_is_point=false;
density=0.1;
priority=0;
monitoring=false;
set_enable_monitoring(true);
}
Area2D::~Area2D() {
}
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