/*************************************************************************/
/*  area_sw.cpp                                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 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,  */
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/*************************************************************************/
#include "area_sw.h"
#include "space_sw.h"
#include "body_sw.h"

AreaSW::BodyKey::BodyKey(BodySW *p_body, uint32_t p_body_shape,uint32_t p_area_shape) { rid=p_body->get_self(); instance_id=p_body->get_instance_id(); body_shape=p_body_shape; area_shape=p_area_shape; }
AreaSW::BodyKey::BodyKey(AreaSW *p_body, uint32_t p_body_shape,uint32_t p_area_shape) { rid=p_body->get_self(); instance_id=p_body->get_instance_id(); body_shape=p_body_shape; area_shape=p_area_shape; }

void AreaSW::_shapes_changed() {


}

void AreaSW::set_transform(const Transform& p_transform) {

	if (!moved_list.in_list() && get_space())
		get_space()->area_add_to_moved_list(&moved_list);

	_set_transform(p_transform);
	_set_inv_transform(p_transform.affine_inverse());
}

void AreaSW::set_space(SpaceSW *p_space) {

	if (get_space()) {
		if (monitor_query_list.in_list())
			get_space()->area_remove_from_monitor_query_list(&monitor_query_list);
		if (moved_list.in_list())
			get_space()->area_remove_from_moved_list(&moved_list);

	}

	monitored_bodies.clear();
	monitored_areas.clear();

	_set_space(p_space);
}


void AreaSW::set_monitor_callback(ObjectID p_id, const StringName& p_method) {


	if (p_id==monitor_callback_id) {
		monitor_callback_method=p_method;
		return;
	}

	_unregister_shapes();

	monitor_callback_id=p_id;
	monitor_callback_method=p_method;

	monitored_bodies.clear();
	monitored_areas.clear();


	_shape_changed();

	if (!moved_list.in_list() && get_space())
		get_space()->area_add_to_moved_list(&moved_list);


}

void AreaSW::set_area_monitor_callback(ObjectID p_id, const StringName& p_method) {


	if (p_id==area_monitor_callback_id) {
		area_monitor_callback_method=p_method;
		return;
	}

	_unregister_shapes();

	area_monitor_callback_id=p_id;
	area_monitor_callback_method=p_method;

	monitored_bodies.clear();
	monitored_areas.clear();

	_shape_changed();

	if (!moved_list.in_list() && get_space())
		get_space()->area_add_to_moved_list(&moved_list);


}


void AreaSW::set_space_override_mode(PhysicsServer::AreaSpaceOverrideMode p_mode) {
	bool do_override=p_mode!=PhysicsServer::AREA_SPACE_OVERRIDE_DISABLED;
	if (do_override==(space_override_mode!=PhysicsServer::AREA_SPACE_OVERRIDE_DISABLED))
		return;
	_unregister_shapes();
	space_override_mode=p_mode;
	_shape_changed();
}

void AreaSW::set_param(PhysicsServer::AreaParameter p_param, const Variant& p_value) {

	switch(p_param) {
		case PhysicsServer::AREA_PARAM_GRAVITY: gravity=p_value; ; break;
		case PhysicsServer::AREA_PARAM_GRAVITY_VECTOR: gravity_vector=p_value; ; break;
		case PhysicsServer::AREA_PARAM_GRAVITY_IS_POINT: gravity_is_point=p_value; ; break;
		case PhysicsServer::AREA_PARAM_GRAVITY_DISTANCE_SCALE: gravity_distance_scale=p_value; ; break;
		case PhysicsServer::AREA_PARAM_GRAVITY_POINT_ATTENUATION:  point_attenuation=p_value; ; break;
		case PhysicsServer::AREA_PARAM_LINEAR_DAMP: linear_damp=p_value; ; break;
		case PhysicsServer::AREA_PARAM_ANGULAR_DAMP: angular_damp=p_value; ; break;
		case PhysicsServer::AREA_PARAM_PRIORITY: priority=p_value; ; break;
	}


}

Variant AreaSW::get_param(PhysicsServer::AreaParameter p_param) const {


	switch(p_param) {
		case PhysicsServer::AREA_PARAM_GRAVITY: return gravity;
		case PhysicsServer::AREA_PARAM_GRAVITY_VECTOR: return gravity_vector;
		case PhysicsServer::AREA_PARAM_GRAVITY_IS_POINT: return gravity_is_point;
		case PhysicsServer::AREA_PARAM_GRAVITY_DISTANCE_SCALE: return gravity_distance_scale;
		case PhysicsServer::AREA_PARAM_GRAVITY_POINT_ATTENUATION: return  point_attenuation;
		case PhysicsServer::AREA_PARAM_LINEAR_DAMP: return linear_damp;
		case PhysicsServer::AREA_PARAM_ANGULAR_DAMP: return angular_damp;
		case PhysicsServer::AREA_PARAM_PRIORITY: return priority;
	}

	return Variant();
}


void AreaSW::_queue_monitor_update() {

	ERR_FAIL_COND(!get_space());

	if (!monitor_query_list.in_list())
		get_space()->area_add_to_monitor_query_list(&monitor_query_list);


}

void AreaSW::set_monitorable(bool p_monitorable) {

	if (monitorable==p_monitorable)
		return;

	monitorable=p_monitorable;
	_set_static(!monitorable);
}

void AreaSW::call_queries() {

	if (monitor_callback_id && !monitored_bodies.empty()) {

		Variant res[5];
		Variant *resptr[5];
		for(int i=0;i<5;i++)
			resptr[i]=&res[i];

		Object *obj = ObjectDB::get_instance(monitor_callback_id);
		if (!obj) {
			monitored_bodies.clear();
			monitor_callback_id=0;
			return;
		}

		for (Map<BodyKey,BodyState>::Element *E=monitored_bodies.front();E;E=E->next()) {

			if (E->get().state==0)
				continue; //nothing happened

			res[0]=E->get().state>0 ? PhysicsServer::AREA_BODY_ADDED : PhysicsServer::AREA_BODY_REMOVED;
			res[1]=E->key().rid;
			res[2]=E->key().instance_id;
			res[3]=E->key().body_shape;
			res[4]=E->key().area_shape;

			Variant::CallError ce;
			obj->call(monitor_callback_method,(const Variant**)resptr,5,ce);
		}
	}

	monitored_bodies.clear();

	if (area_monitor_callback_id && !monitored_areas.empty()) {


		Variant res[5];
		Variant *resptr[5];
		for(int i=0;i<5;i++)
			resptr[i]=&res[i];

		Object *obj = ObjectDB::get_instance(area_monitor_callback_id);
		if (!obj) {
			monitored_areas.clear();
			area_monitor_callback_id=0;
			return;
		}



		for (Map<BodyKey,BodyState>::Element *E=monitored_areas.front();E;E=E->next()) {

			if (E->get().state==0)
				continue; //nothing happened

			res[0]=E->get().state>0 ? PhysicsServer::AREA_BODY_ADDED : PhysicsServer::AREA_BODY_REMOVED;
			res[1]=E->key().rid;
			res[2]=E->key().instance_id;
			res[3]=E->key().body_shape;
			res[4]=E->key().area_shape;


			Variant::CallError ce;
			obj->call(area_monitor_callback_method,(const Variant**)resptr,5,ce);
		}
	}

	monitored_areas.clear();
	//get_space()->area_remove_from_monitor_query_list(&monitor_query_list);

}

AreaSW::AreaSW() : CollisionObjectSW(TYPE_AREA), monitor_query_list(this),  moved_list(this) {

	_set_static(true); //areas are never active
	space_override_mode=PhysicsServer::AREA_SPACE_OVERRIDE_DISABLED;
	gravity=9.80665;
	gravity_vector=Vector3(0,-1,0);
	gravity_is_point=false;
	gravity_distance_scale=0;
	point_attenuation=1;
	angular_damp=1.0;
	linear_damp=0.1;
	priority=0;
	set_ray_pickable(false);
	monitor_callback_id=0;
	area_monitor_callback_id=0;
	monitorable=false;

}

AreaSW::~AreaSW() {


}

