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godot/servers/physics_server.cpp

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GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
/*************************************************************************/
/* physics_server.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 "physics_server.h"
#include "print_string.h"
PhysicsServer * PhysicsServer::singleton=NULL;
void PhysicsDirectBodyState::integrate_forces() {
real_t step = get_step();
Vector3 lv = get_linear_velocity();
lv+=get_total_gravity() * step;
Vector3 av = get_angular_velocity();
float damp = 1.0 - step * get_total_density();
if (damp<0) // reached zero in the given time
damp=0;
lv*=damp;
av*=damp;
set_linear_velocity(lv);
set_angular_velocity(av);
}
Object* PhysicsDirectBodyState::get_contact_collider_object(int p_contact_idx) const {
ObjectID objid = get_contact_collider_id(p_contact_idx);
Object *obj = ObjectDB::get_instance( objid );
return obj;
}
PhysicsServer * PhysicsServer::get_singleton() {
return singleton;
}
void PhysicsDirectBodyState::_bind_methods() {
ObjectTypeDB::bind_method(_MD("get_total_gravity"),&PhysicsDirectBodyState::get_total_gravity);
ObjectTypeDB::bind_method(_MD("get_total_density"),&PhysicsDirectBodyState::get_total_density);
ObjectTypeDB::bind_method(_MD("get_inverse_mass"),&PhysicsDirectBodyState::get_inverse_mass);
ObjectTypeDB::bind_method(_MD("get_inverse_inertia"),&PhysicsDirectBodyState::get_inverse_inertia);
ObjectTypeDB::bind_method(_MD("set_linear_velocity","velocity"),&PhysicsDirectBodyState::set_linear_velocity);
ObjectTypeDB::bind_method(_MD("get_linear_velocity"),&PhysicsDirectBodyState::get_linear_velocity);
ObjectTypeDB::bind_method(_MD("set_angular_velocity","velocity"),&PhysicsDirectBodyState::set_angular_velocity);
ObjectTypeDB::bind_method(_MD("get_angular_velocity"),&PhysicsDirectBodyState::get_angular_velocity);
ObjectTypeDB::bind_method(_MD("set_transform","transform"),&PhysicsDirectBodyState::set_transform);
ObjectTypeDB::bind_method(_MD("get_transform"),&PhysicsDirectBodyState::get_transform);
ObjectTypeDB::bind_method(_MD("add_force","force","pos"),&PhysicsDirectBodyState::add_force);
Little Bits -=-=-=-=-=- -Fixed small bugs all around -Added ability to show/hide entire sections of the spatial (3D) tree -WIP new vehicle (not ready yet) based on Bullet
2014-08-14 13:31:38 +00:00
ObjectTypeDB::bind_method(_MD("apply_impulse","pos","j"),&PhysicsDirectBodyState::apply_impulse);
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
ObjectTypeDB::bind_method(_MD("set_sleep_state","enabled"),&PhysicsDirectBodyState::set_sleep_state);
ObjectTypeDB::bind_method(_MD("is_sleeping"),&PhysicsDirectBodyState::is_sleeping);
ObjectTypeDB::bind_method(_MD("get_contact_count"),&PhysicsDirectBodyState::get_contact_count);
ObjectTypeDB::bind_method(_MD("get_contact_local_pos","contact_idx"),&PhysicsDirectBodyState::get_contact_local_pos);
ObjectTypeDB::bind_method(_MD("get_contact_local_normal","contact_idx"),&PhysicsDirectBodyState::get_contact_local_normal);
ObjectTypeDB::bind_method(_MD("get_contact_local_shape","contact_idx"),&PhysicsDirectBodyState::get_contact_local_shape);
ObjectTypeDB::bind_method(_MD("get_contact_collider","contact_idx"),&PhysicsDirectBodyState::get_contact_collider);
ObjectTypeDB::bind_method(_MD("get_contact_collider_pos","contact_idx"),&PhysicsDirectBodyState::get_contact_collider_pos);
ObjectTypeDB::bind_method(_MD("get_contact_collider_id","contact_idx"),&PhysicsDirectBodyState::get_contact_collider_id);
ObjectTypeDB::bind_method(_MD("get_contact_collider_object","contact_idx"),&PhysicsDirectBodyState::get_contact_collider_object);
ObjectTypeDB::bind_method(_MD("get_contact_collider_shape","contact_idx"),&PhysicsDirectBodyState::get_contact_collider_shape);
ObjectTypeDB::bind_method(_MD("get_contact_collider_velocity_at_pos","contact_idx"),&PhysicsDirectBodyState::get_contact_collider_velocity_at_pos);
ObjectTypeDB::bind_method(_MD("get_step"),&PhysicsDirectBodyState::get_step);
ObjectTypeDB::bind_method(_MD("integrate_forces"),&PhysicsDirectBodyState::integrate_forces);
ObjectTypeDB::bind_method(_MD("get_space_state:PhysicsDirectSpaceState"),&PhysicsDirectBodyState::get_space_state);
}
PhysicsDirectBodyState::PhysicsDirectBodyState() {}
///////////////////////////////////////////////////////
Variant PhysicsDirectSpaceState::_intersect_ray(const Vector3& p_from, const Vector3& p_to,const Vector<RID>& p_exclude,uint32_t p_user_mask) {
RayResult inters;
Set<RID> exclude;
for(int i=0;i<p_exclude.size();i++)
exclude.insert(p_exclude[i]);
bool res = intersect_ray(p_from,p_to,inters,exclude,p_user_mask);
if (!res)
return Variant();
Dictionary d;
d["position"]=inters.position;
d["normal"]=inters.normal;
d["collider_id"]=inters.collider_id;
d["collider"]=inters.collider;
d["shape"]=inters.shape;
d["rid"]=inters.rid;
return d;
}
Variant PhysicsDirectSpaceState::_intersect_shape(const RID& p_shape, const Transform& p_xform,int p_result_max,const Vector<RID>& p_exclude,uint32_t p_user_mask) {
ERR_FAIL_INDEX_V(p_result_max,4096,Variant());
if (p_result_max<=0)
return Variant();
Set<RID> exclude;
for(int i=0;i<p_exclude.size();i++)
exclude.insert(p_exclude[i]);
ShapeResult *res=(ShapeResult*)alloca(p_result_max*sizeof(ShapeResult));
int rc = intersect_shape(p_shape,p_xform,res,p_result_max,exclude,p_user_mask);
if (rc==0)
return Variant();
Ref<PhysicsShapeQueryResult> result = memnew( PhysicsShapeQueryResult );
result->result.resize(rc);
for(int i=0;i<rc;i++)
result->result[i]=res[i];
return result;
}
PhysicsDirectSpaceState::PhysicsDirectSpaceState() {
}
void PhysicsDirectSpaceState::_bind_methods() {
ObjectTypeDB::bind_method(_MD("intersect_ray","from","to","exclude","umask"),&PhysicsDirectSpaceState::_intersect_ray,DEFVAL(Array()),DEFVAL(0));
ObjectTypeDB::bind_method(_MD("intersect_shape:PhysicsShapeQueryResult","shape","xform","result_max","exclude","umask"),&PhysicsDirectSpaceState::_intersect_shape,DEFVAL(Array()),DEFVAL(0));
}
int PhysicsShapeQueryResult::get_result_count() const {
return result.size();
}
RID PhysicsShapeQueryResult::get_result_rid(int p_idx) const {
return result[p_idx].rid;
}
ObjectID PhysicsShapeQueryResult::get_result_object_id(int p_idx) const {
return result[p_idx].collider_id;
}
Object* PhysicsShapeQueryResult::get_result_object(int p_idx) const {
return result[p_idx].collider;
}
int PhysicsShapeQueryResult::get_result_object_shape(int p_idx) const {
return result[p_idx].shape;
}
PhysicsShapeQueryResult::PhysicsShapeQueryResult() {
}
void PhysicsShapeQueryResult::_bind_methods() {
ObjectTypeDB::bind_method(_MD("get_result_count"),&PhysicsShapeQueryResult::get_result_count);
ObjectTypeDB::bind_method(_MD("get_result_rid","idx"),&PhysicsShapeQueryResult::get_result_rid);
ObjectTypeDB::bind_method(_MD("get_result_object_id","idx"),&PhysicsShapeQueryResult::get_result_object_id);
ObjectTypeDB::bind_method(_MD("get_result_object","idx"),&PhysicsShapeQueryResult::get_result_object);
ObjectTypeDB::bind_method(_MD("get_result_object_shape","idx"),&PhysicsShapeQueryResult::get_result_object_shape);
}
///////////////////////////////////////
void PhysicsServer::_bind_methods() {
ObjectTypeDB::bind_method(_MD("shape_create","type"),&PhysicsServer::shape_create);
ObjectTypeDB::bind_method(_MD("shape_set_data","shape","data"),&PhysicsServer::shape_set_data);
ObjectTypeDB::bind_method(_MD("shape_get_type","shape"),&PhysicsServer::shape_get_type);
ObjectTypeDB::bind_method(_MD("shape_get_data","shape"),&PhysicsServer::shape_get_data);
ObjectTypeDB::bind_method(_MD("space_create"),&PhysicsServer::space_create);
ObjectTypeDB::bind_method(_MD("space_set_active","space","active"),&PhysicsServer::space_set_active);
ObjectTypeDB::bind_method(_MD("space_is_active","space"),&PhysicsServer::space_is_active);
ObjectTypeDB::bind_method(_MD("space_set_param","space","param","value"),&PhysicsServer::space_set_param);
ObjectTypeDB::bind_method(_MD("space_get_param","space","param"),&PhysicsServer::space_get_param);
ObjectTypeDB::bind_method(_MD("space_get_direct_state:PhysicsDirectSpaceState","space"),&PhysicsServer::space_get_direct_state);
ObjectTypeDB::bind_method(_MD("area_create"),&PhysicsServer::area_create);
ObjectTypeDB::bind_method(_MD("area_set_space","area","space"),&PhysicsServer::area_set_space);
ObjectTypeDB::bind_method(_MD("area_get_space","area"),&PhysicsServer::area_get_space);
ObjectTypeDB::bind_method(_MD("area_set_space_override_mode","area","mode"),&PhysicsServer::area_set_space_override_mode);
ObjectTypeDB::bind_method(_MD("area_get_space_override_mode","area"),&PhysicsServer::area_get_space_override_mode);
ObjectTypeDB::bind_method(_MD("area_add_shape","area","shape","transform"),&PhysicsServer::area_set_shape,DEFVAL(Transform()));
ObjectTypeDB::bind_method(_MD("area_set_shape","area","shape_idx","shape"),&PhysicsServer::area_get_shape);
ObjectTypeDB::bind_method(_MD("area_set_shape_transform","area","shape_idx","transform"),&PhysicsServer::area_set_shape_transform);
ObjectTypeDB::bind_method(_MD("area_get_shape_count","area"),&PhysicsServer::area_get_shape_count);
ObjectTypeDB::bind_method(_MD("area_get_shape","area","shape_idx"),&PhysicsServer::area_get_shape);
ObjectTypeDB::bind_method(_MD("area_get_shape_transform","area","shape_idx"),&PhysicsServer::area_get_shape_transform);
ObjectTypeDB::bind_method(_MD("area_remove_shape","area","shape_idx"),&PhysicsServer::area_remove_shape);
ObjectTypeDB::bind_method(_MD("area_clear_shapes","area"),&PhysicsServer::area_clear_shapes);
ObjectTypeDB::bind_method(_MD("area_set_param","area","param","value"),&PhysicsServer::area_get_param);
ObjectTypeDB::bind_method(_MD("area_set_transform","area","transform"),&PhysicsServer::area_get_transform);
ObjectTypeDB::bind_method(_MD("area_get_param","area","param"),&PhysicsServer::area_get_param);
ObjectTypeDB::bind_method(_MD("area_get_transform","area"),&PhysicsServer::area_get_transform);
ObjectTypeDB::bind_method(_MD("area_attach_object_instance_ID","area","id"),&PhysicsServer::area_attach_object_instance_ID);
ObjectTypeDB::bind_method(_MD("area_get_object_instance_ID","area"),&PhysicsServer::area_get_object_instance_ID);
ObjectTypeDB::bind_method(_MD("area_set_monitor_callback","receiver","method"),&PhysicsServer::area_set_monitor_callback);
ObjectTypeDB::bind_method(_MD("body_create","mode","init_sleeping"),&PhysicsServer::body_create,DEFVAL(BODY_MODE_RIGID),DEFVAL(false));
ObjectTypeDB::bind_method(_MD("body_set_space","body","space"),&PhysicsServer::body_set_space);
ObjectTypeDB::bind_method(_MD("body_get_space","body"),&PhysicsServer::body_get_space);
ObjectTypeDB::bind_method(_MD("body_set_mode","body","mode"),&PhysicsServer::body_set_mode);
ObjectTypeDB::bind_method(_MD("body_get_mode","body"),&PhysicsServer::body_get_mode);
ObjectTypeDB::bind_method(_MD("body_add_shape","body","shape","transform"),&PhysicsServer::body_add_shape,DEFVAL(Transform()));
ObjectTypeDB::bind_method(_MD("body_set_shape","body","shape_idx","shape"),&PhysicsServer::body_set_shape);
ObjectTypeDB::bind_method(_MD("body_set_shape_transform","body","shape_idx","transform"),&PhysicsServer::body_set_shape_transform);
ObjectTypeDB::bind_method(_MD("body_get_shape_count","body"),&PhysicsServer::body_get_shape_count);
ObjectTypeDB::bind_method(_MD("body_get_shape","body","shape_idx"),&PhysicsServer::body_get_shape);
ObjectTypeDB::bind_method(_MD("body_get_shape_transform","body","shape_idx"),&PhysicsServer::body_get_shape_transform);
ObjectTypeDB::bind_method(_MD("body_remove_shape","body","shape_idx"),&PhysicsServer::body_remove_shape);
ObjectTypeDB::bind_method(_MD("body_clear_shapes","body"),&PhysicsServer::body_clear_shapes);
ObjectTypeDB::bind_method(_MD("body_attach_object_instance_ID","body","id"),&PhysicsServer::body_attach_object_instance_ID);
ObjectTypeDB::bind_method(_MD("body_get_object_instance_ID","body"),&PhysicsServer::body_get_object_instance_ID);
ObjectTypeDB::bind_method(_MD("body_set_enable_continuous_collision_detection","body","enable"),&PhysicsServer::body_set_enable_continuous_collision_detection);
ObjectTypeDB::bind_method(_MD("body_is_continuous_collision_detection_enabled","body"),&PhysicsServer::body_is_continuous_collision_detection_enabled);
//ObjectTypeDB::bind_method(_MD("body_set_user_flags","flags""),&PhysicsServer::body_set_shape,DEFVAL(Transform));
//ObjectTypeDB::bind_method(_MD("body_get_user_flags","body","shape_idx","shape"),&PhysicsServer::body_get_shape);
ObjectTypeDB::bind_method(_MD("body_set_param","body","param","value"),&PhysicsServer::body_set_param);
ObjectTypeDB::bind_method(_MD("body_get_param","body","param"),&PhysicsServer::body_get_param);
ObjectTypeDB::bind_method(_MD("body_static_simulate_motion","body","new_xform"),&PhysicsServer::body_static_simulate_motion);
ObjectTypeDB::bind_method(_MD("body_set_state","body","state","value"),&PhysicsServer::body_set_state);
ObjectTypeDB::bind_method(_MD("body_get_state","body","state"),&PhysicsServer::body_get_state);
ObjectTypeDB::bind_method(_MD("body_apply_impulse","body","pos","impulse"),&PhysicsServer::body_apply_impulse);
ObjectTypeDB::bind_method(_MD("body_set_axis_velocity","body","axis_velocity"),&PhysicsServer::body_set_axis_velocity);
A bit of everything: -IMA-ADPCM support for samples, this means that sound effects can be compressed and use 4 timess less RAM. -New 3D import workflow based on Wavefront OBJ. Import single objects as mesh resources instead of full scenes. Many people prefers to work this way. Just like the rest of the imported resources, these are updated in realtime if modified externally. -Mesh resources now support naming surfaces. This helps reimporting to identify which user-created materials must be kept. -Several fixes and improvements to SurfaceTool. -Anti Aliasing added to WorldEnvironment effects (using FXAA) -2D Physics bodies (RigidBody, KinematicBody, etc), Raycasts, Tilemap, etc support collision layers. This makes easy to group which objects collide against which. -2D Trigger shapes can now also trigger collision reporting in other 2D bodies (it used to be in Area2D before) -Viewport render target textures can now be filtered. -Few fixes in GDscript make it easier to work with static functions and class members. -Several and many bugfixes.
2014-05-14 04:22:15 +00:00
ObjectTypeDB::bind_method(_MD("body_set_axis_lock","body","axis"),&PhysicsServer::body_set_axis_lock);
ObjectTypeDB::bind_method(_MD("body_get_axis_lock","body"),&PhysicsServer::body_set_axis_lock);
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
ObjectTypeDB::bind_method(_MD("body_add_collision_exception","body","excepted_body"),&PhysicsServer::body_add_collision_exception);
ObjectTypeDB::bind_method(_MD("body_remove_collision_exception","body","excepted_body"),&PhysicsServer::body_remove_collision_exception);
// virtual void body_get_collision_exceptions(RID p_body, List<RID> *p_exceptions)=0;
ObjectTypeDB::bind_method(_MD("body_set_max_contacts_reported","body","amount"),&PhysicsServer::body_set_max_contacts_reported);
ObjectTypeDB::bind_method(_MD("body_get_max_contacts_reported","body"),&PhysicsServer::body_get_max_contacts_reported);
ObjectTypeDB::bind_method(_MD("body_set_omit_force_integration","body","enable"),&PhysicsServer::body_set_omit_force_integration);
ObjectTypeDB::bind_method(_MD("body_is_omitting_force_integration","body"),&PhysicsServer::body_is_omitting_force_integration);
ObjectTypeDB::bind_method(_MD("body_set_force_integration_callback","body","receiver","method","userdata"),&PhysicsServer::body_set_force_integration_callback,DEFVAL(Variant()));
/* JOINT API */
/*
ObjectTypeDB::bind_method(_MD("joint_set_param","joint","param","value"),&PhysicsServer::joint_set_param);
ObjectTypeDB::bind_method(_MD("joint_get_param","joint","param"),&PhysicsServer::joint_get_param);
ObjectTypeDB::bind_method(_MD("pin_joint_create","anchor","body_a","body_b"),&PhysicsServer::pin_joint_create,DEFVAL(RID()));
ObjectTypeDB::bind_method(_MD("groove_joint_create","groove1_a","groove2_a","anchor_b","body_a","body_b"),&PhysicsServer::groove_joint_create,DEFVAL(RID()),DEFVAL(RID()));
ObjectTypeDB::bind_method(_MD("damped_spring_joint_create","anchor_a","anchor_b","body_a","body_b"),&PhysicsServer::damped_spring_joint_create,DEFVAL(RID()));
ObjectTypeDB::bind_method(_MD("damped_string_joint_set_param","joint","param","value"),&PhysicsServer::damped_string_joint_set_param,DEFVAL(RID()));
ObjectTypeDB::bind_method(_MD("damped_string_joint_get_param","joint","param"),&PhysicsServer::damped_string_joint_get_param);
ObjectTypeDB::bind_method(_MD("joint_get_type","joint"),&PhysicsServer::joint_get_type);
*/
ObjectTypeDB::bind_method(_MD("free","rid"),&PhysicsServer::free);
ObjectTypeDB::bind_method(_MD("set_active","active"),&PhysicsServer::set_active);
// ObjectTypeDB::bind_method(_MD("init"),&PhysicsServer::init);
// ObjectTypeDB::bind_method(_MD("step"),&PhysicsServer::step);
// ObjectTypeDB::bind_method(_MD("sync"),&PhysicsServer::sync);
//ObjectTypeDB::bind_method(_MD("flush_queries"),&PhysicsServer::flush_queries);
BIND_CONSTANT( SHAPE_PLANE );
BIND_CONSTANT( SHAPE_RAY );
BIND_CONSTANT( SHAPE_SPHERE );
BIND_CONSTANT( SHAPE_BOX );
BIND_CONSTANT( SHAPE_CAPSULE );
BIND_CONSTANT( SHAPE_CONVEX_POLYGON );
BIND_CONSTANT( SHAPE_CONCAVE_POLYGON );
BIND_CONSTANT( SHAPE_HEIGHTMAP );
BIND_CONSTANT( SHAPE_CUSTOM );
BIND_CONSTANT( AREA_PARAM_GRAVITY );
BIND_CONSTANT( AREA_PARAM_GRAVITY_VECTOR );
BIND_CONSTANT( AREA_PARAM_GRAVITY_IS_POINT );
BIND_CONSTANT( AREA_PARAM_GRAVITY_POINT_ATTENUATION );
BIND_CONSTANT( AREA_PARAM_DENSITY );
BIND_CONSTANT( AREA_PARAM_PRIORITY );
BIND_CONSTANT( AREA_SPACE_OVERRIDE_COMBINE );
BIND_CONSTANT( AREA_SPACE_OVERRIDE_DISABLED );
BIND_CONSTANT( AREA_SPACE_OVERRIDE_REPLACE );
BIND_CONSTANT( BODY_MODE_STATIC );
-improved physics ccd -html5 exporter works again -disable repeat on image loader by default -can change shape offset en tileset, texture offset was broken
2014-02-19 14:57:14 +00:00
BIND_CONSTANT( BODY_MODE_KINEMATIC );
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
BIND_CONSTANT( BODY_MODE_RIGID );
BIND_CONSTANT( BODY_MODE_CHARACTER );
BIND_CONSTANT( BODY_PARAM_BOUNCE );
BIND_CONSTANT( BODY_PARAM_FRICTION );
BIND_CONSTANT( BODY_PARAM_MASS );
BIND_CONSTANT( BODY_PARAM_MAX );
BIND_CONSTANT( BODY_STATE_TRANSFORM );
BIND_CONSTANT( BODY_STATE_LINEAR_VELOCITY );
BIND_CONSTANT( BODY_STATE_ANGULAR_VELOCITY );
BIND_CONSTANT( BODY_STATE_SLEEPING );
BIND_CONSTANT( BODY_STATE_CAN_SLEEP );
/*
BIND_CONSTANT( JOINT_PIN );
BIND_CONSTANT( JOINT_GROOVE );
BIND_CONSTANT( JOINT_DAMPED_SPRING );
BIND_CONSTANT( DAMPED_STRING_REST_LENGTH );
BIND_CONSTANT( DAMPED_STRING_STIFFNESS );
BIND_CONSTANT( DAMPED_STRING_DAMPING );
*/
// BIND_CONSTANT( TYPE_BODY );
// BIND_CONSTANT( TYPE_AREA );
BIND_CONSTANT( AREA_BODY_ADDED );
BIND_CONSTANT( AREA_BODY_REMOVED );
}
PhysicsServer::PhysicsServer() {
ERR_FAIL_COND( singleton!=NULL );
singleton=this;
}
PhysicsServer::~PhysicsServer() {
singleton=NULL;
}