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godot/scene/2d/physics_body_2d.cpp

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GODOT IS OPEN SOURCE
2014-02-10 09:10:30 +08:00
/*************************************************************************/
/* physics_body_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 "physics_body_2d.h"
#include "scene/scene_string_names.h"
void PhysicsBody2D::_notification(int p_what) {
/*
switch(p_what) {
case NOTIFICATION_TRANSFORM_CHANGED: {
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_TRANSFORM,get_global_transform());
} break;
}
*/
}
PhysicsBody2D::PhysicsBody2D(Physics2DServer::BodyMode p_mode) : CollisionObject2D( Physics2DServer::get_singleton()->body_create(p_mode), false) {
}
void StaticBody2D::set_constant_linear_velocity(const Vector2& p_vel) {
constant_linear_velocity=p_vel;
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_LINEAR_VELOCITY,constant_linear_velocity);
}
void StaticBody2D::set_constant_angular_velocity(real_t p_vel) {
constant_angular_velocity=p_vel;
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_ANGULAR_VELOCITY,constant_angular_velocity);
}
Vector2 StaticBody2D::get_constant_linear_velocity() const {
return constant_linear_velocity;
}
real_t StaticBody2D::get_constant_angular_velocity() const {
return constant_angular_velocity;
}
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#if 0
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void StaticBody2D::_update_xform() {
if (!pre_xform || !pending)
return;
setting=true;
Matrix32 new_xform = get_global_transform(); //obtain the new one
set_block_transform_notify(true);
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_TRANSFORM,*pre_xform); //then simulate motion!
set_global_transform(*pre_xform); //but restore state to previous one in both visual and physics
set_block_transform_notify(false);
Physics2DServer::get_singleton()->body_static_simulate_motion(get_rid(),new_xform); //then simulate motion!
setting=false;
pending=false;
}
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#endif
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void StaticBody2D::set_friction(real_t p_friction){
ERR_FAIL_COND(p_friction<0 || p_friction>1);
friction=p_friction;
Physics2DServer::get_singleton()->body_set_param(get_rid(),Physics2DServer::BODY_PARAM_FRICTION,friction);
}
real_t StaticBody2D::get_friction() const{
return friction;
}
void StaticBody2D::set_bounce(real_t p_bounce){
ERR_FAIL_COND(p_bounce<0 || p_bounce>1);
bounce=p_bounce;
Physics2DServer::get_singleton()->body_set_param(get_rid(),Physics2DServer::BODY_PARAM_BOUNCE,bounce);
}
real_t StaticBody2D::get_bounce() const{
return bounce;
}
void StaticBody2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_constant_linear_velocity","vel"),&StaticBody2D::set_constant_linear_velocity);
ObjectTypeDB::bind_method(_MD("set_constant_angular_velocity","vel"),&StaticBody2D::set_constant_angular_velocity);
ObjectTypeDB::bind_method(_MD("get_constant_linear_velocity"),&StaticBody2D::get_constant_linear_velocity);
ObjectTypeDB::bind_method(_MD("get_constant_angular_velocity"),&StaticBody2D::get_constant_angular_velocity);
ObjectTypeDB::bind_method(_MD("set_friction","friction"),&StaticBody2D::set_friction);
ObjectTypeDB::bind_method(_MD("get_friction"),&StaticBody2D::get_friction);
ObjectTypeDB::bind_method(_MD("set_bounce","bounce"),&StaticBody2D::set_bounce);
ObjectTypeDB::bind_method(_MD("get_bounce"),&StaticBody2D::get_bounce);
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2,"constant_linear_velocity"),_SCS("set_constant_linear_velocity"),_SCS("get_constant_linear_velocity"));
ADD_PROPERTY(PropertyInfo(Variant::REAL,"constant_angular_velocity"),_SCS("set_constant_angular_velocity"),_SCS("get_constant_angular_velocity"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"friction",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_friction"),_SCS("get_friction"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"bounce",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_bounce"),_SCS("get_bounce"));
}
StaticBody2D::StaticBody2D() : PhysicsBody2D(Physics2DServer::BODY_MODE_STATIC) {
constant_angular_velocity=0;
bounce=0;
friction=1;
}
StaticBody2D::~StaticBody2D() {
}
void RigidBody2D::_body_enter_scene(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=contact_monitor->body_map.find(p_id);
ERR_FAIL_COND(!E);
ERR_FAIL_COND(E->get().in_scene);
E->get().in_scene=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].local_shape);
}
}
void RigidBody2D::_body_exit_scene(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=contact_monitor->body_map.find(p_id);
ERR_FAIL_COND(!E);
ERR_FAIL_COND(!E->get().in_scene);
E->get().in_scene=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].local_shape);
}
}
void RigidBody2D::_body_inout(int p_status, ObjectID p_instance, int p_body_shape,int p_local_shape) {
bool body_in = p_status==1;
ObjectID objid=p_instance;
Object *obj = ObjectDB::get_instance(objid);
Node *node = obj ? obj->cast_to<Node>() : NULL;
Map<ObjectID,BodyState>::Element *E=contact_monitor->body_map.find(objid);
ERR_FAIL_COND(!body_in && !E);
if (body_in) {
if (!E) {
E = contact_monitor->body_map.insert(objid,BodyState());
E->get().rc=0;
E->get().in_scene=node && node->is_inside_scene();
if (node) {
node->connect(SceneStringNames::get_singleton()->enter_scene,this,SceneStringNames::get_singleton()->_body_enter_scene,make_binds(objid));
node->connect(SceneStringNames::get_singleton()->exit_scene,this,SceneStringNames::get_singleton()->_body_exit_scene,make_binds(objid));
if (E->get().in_scene) {
emit_signal(SceneStringNames::get_singleton()->body_enter,node);
}
}
}
E->get().rc++;
if (node)
E->get().shapes.insert(ShapePair(p_body_shape,p_local_shape));
if (E->get().in_scene) {
emit_signal(SceneStringNames::get_singleton()->body_enter_shape,objid,node,p_body_shape,p_local_shape);
}
} else {
E->get().rc--;
if (node)
E->get().shapes.erase(ShapePair(p_body_shape,p_local_shape));
if (E->get().rc==0) {
if (node) {
node->disconnect(SceneStringNames::get_singleton()->enter_scene,this,SceneStringNames::get_singleton()->_body_enter_scene);
node->disconnect(SceneStringNames::get_singleton()->exit_scene,this,SceneStringNames::get_singleton()->_body_exit_scene);
if (E->get().in_scene)
emit_signal(SceneStringNames::get_singleton()->body_exit,obj);
}
contact_monitor->body_map.erase(E);
}
if (node && E->get().in_scene) {
emit_signal(SceneStringNames::get_singleton()->body_exit_shape,objid,obj,p_body_shape,p_local_shape);
}
}
}
struct _RigidBody2DInOut {
ObjectID id;
int shape;
int local_shape;
};
void RigidBody2D::_direct_state_changed(Object *p_state) {
//eh.. fuck
#ifdef DEBUG_ENABLED
state=p_state->cast_to<Physics2DDirectBodyState>();
#else
state=(Physics2DDirectBodyState*)p_state; //trust it
#endif
if (contact_monitor) {
//untag all
int rc=0;
for( Map<ObjectID,BodyState>::Element *E=contact_monitor->body_map.front();E;E=E->next()) {
for(int i=0;i<E->get().shapes.size();i++) {
E->get().shapes[i].tagged=false;
rc++;
}
}
_RigidBody2DInOut *toadd=(_RigidBody2DInOut*)alloca(state->get_contact_count()*sizeof(_RigidBody2DInOut));
int toadd_count=0;//state->get_contact_count();
RigidBody2D_RemoveAction *toremove=(RigidBody2D_RemoveAction*)alloca(rc*sizeof(RigidBody2D_RemoveAction));
int toremove_count=0;
//put the ones to add
for(int i=0;i<state->get_contact_count();i++) {
ObjectID obj = state->get_contact_collider_id(i);
int local_shape = state->get_contact_local_shape(i);
int shape = state->get_contact_collider_shape(i);
toadd[i].local_shape=local_shape;
toadd[i].id=obj;
toadd[i].shape=shape;
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// bool found=false;
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Map<ObjectID,BodyState>::Element *E=contact_monitor->body_map.find(obj);
if (!E) {
toadd_count++;
continue;
}
ShapePair sp( shape,local_shape );
int idx = E->get().shapes.find(sp);
if (idx==-1) {
toadd_count++;
continue;
}
E->get().shapes[idx].tagged=true;
}
//put the ones to remove
for( Map<ObjectID,BodyState>::Element *E=contact_monitor->body_map.front();E;E=E->next()) {
for(int i=0;i<E->get().shapes.size();i++) {
if (!E->get().shapes[i].tagged) {
toremove[toremove_count].body_id=E->key();
toremove[toremove_count].pair=E->get().shapes[i];
toremove_count++;
}
}
}
//process remotions
for(int i=0;i<toremove_count;i++) {
_body_inout(0,toremove[i].body_id,toremove[i].pair.body_shape,toremove[i].pair.local_shape);
}
//process aditions
for(int i=0;i<toadd_count;i++) {
_body_inout(1,toadd[i].id,toadd[i].shape,toadd[i].local_shape);
}
}
set_block_transform_notify(true); // don't want notify (would feedback loop)
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if (mode!=MODE_KINEMATIC)
set_global_transform(state->get_transform());
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linear_velocity=state->get_linear_velocity();
angular_velocity=state->get_angular_velocity();
active=!state->is_sleeping();
if (get_script_instance())
get_script_instance()->call("_integrate_forces",state);
set_block_transform_notify(false); // want it back
state=NULL;
}
void RigidBody2D::set_mode(Mode p_mode) {
mode=p_mode;
switch(p_mode) {
case MODE_RIGID: {
Physics2DServer::get_singleton()->body_set_mode(get_rid(),Physics2DServer::BODY_MODE_RIGID);
} break;
case MODE_STATIC: {
Physics2DServer::get_singleton()->body_set_mode(get_rid(),Physics2DServer::BODY_MODE_STATIC);
} break;
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case MODE_KINEMATIC: {
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Physics2DServer::get_singleton()->body_set_mode(get_rid(),Physics2DServer::BODY_MODE_KINEMATIC);
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} break;
case MODE_CHARACTER: {
Physics2DServer::get_singleton()->body_set_mode(get_rid(),Physics2DServer::BODY_MODE_CHARACTER);
} break;
}
}
RigidBody2D::Mode RigidBody2D::get_mode() const{
return mode;
}
void RigidBody2D::set_mass(real_t p_mass){
ERR_FAIL_COND(p_mass<=0);
mass=p_mass;
_change_notify("mass");
_change_notify("weight");
Physics2DServer::get_singleton()->body_set_param(get_rid(),Physics2DServer::BODY_PARAM_MASS,mass);
}
real_t RigidBody2D::get_mass() const{
return mass;
}
void RigidBody2D::set_weight(real_t p_weight){
set_mass(p_weight/9.8);
}
real_t RigidBody2D::get_weight() const{
return mass*9.8;
}
void RigidBody2D::set_friction(real_t p_friction){
ERR_FAIL_COND(p_friction<0 || p_friction>1);
friction=p_friction;
Physics2DServer::get_singleton()->body_set_param(get_rid(),Physics2DServer::BODY_PARAM_FRICTION,friction);
}
real_t RigidBody2D::get_friction() const{
return friction;
}
void RigidBody2D::set_bounce(real_t p_bounce){
ERR_FAIL_COND(p_bounce<0 || p_bounce>1);
bounce=p_bounce;
Physics2DServer::get_singleton()->body_set_param(get_rid(),Physics2DServer::BODY_PARAM_BOUNCE,bounce);
}
real_t RigidBody2D::get_bounce() const{
return bounce;
}
void RigidBody2D::set_axis_velocity(const Vector2& p_axis) {
Vector2 v = state? state->get_linear_velocity() : linear_velocity;
Vector2 axis = p_axis.normalized();
v-=axis*axis.dot(v);
v+=p_axis;
if (state) {
set_linear_velocity(v);
} else {
Physics2DServer::get_singleton()->body_set_axis_velocity(get_rid(),p_axis);
linear_velocity=v;
}
}
void RigidBody2D::set_linear_velocity(const Vector2& p_velocity){
linear_velocity=p_velocity;
if (state)
state->set_linear_velocity(linear_velocity);
else {
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_LINEAR_VELOCITY,linear_velocity);
}
}
Vector2 RigidBody2D::get_linear_velocity() const{
return linear_velocity;
}
void RigidBody2D::set_angular_velocity(real_t p_velocity){
angular_velocity=p_velocity;
if (state)
state->set_angular_velocity(angular_velocity);
else
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_ANGULAR_VELOCITY,angular_velocity);
}
real_t RigidBody2D::get_angular_velocity() const{
return angular_velocity;
}
void RigidBody2D::set_use_custom_integrator(bool p_enable){
if (custom_integrator==p_enable)
return;
custom_integrator=p_enable;
Physics2DServer::get_singleton()->body_set_omit_force_integration(get_rid(),p_enable);
}
bool RigidBody2D::is_using_custom_integrator(){
return custom_integrator;
}
void RigidBody2D::set_active(bool p_active) {
active=p_active;
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_SLEEPING,!active);
}
void RigidBody2D::set_can_sleep(bool p_active) {
can_sleep=p_active;
Physics2DServer::get_singleton()->body_set_state(get_rid(),Physics2DServer::BODY_STATE_CAN_SLEEP,p_active);
}
bool RigidBody2D::is_able_to_sleep() const {
return can_sleep;
}
bool RigidBody2D::is_active() const {
return active;
}
void RigidBody2D::set_max_contacts_reported(int p_amount) {
max_contacts_reported=p_amount;
Physics2DServer::get_singleton()->body_set_max_contacts_reported(get_rid(),p_amount);
}
int RigidBody2D::get_max_contacts_reported() const{
return max_contacts_reported;
}
void RigidBody2D::apply_impulse(const Vector2& p_pos, const Vector2& p_impulse) {
Physics2DServer::get_singleton()->body_apply_impulse(get_rid(),p_pos,p_impulse);
}
void RigidBody2D::set_applied_force(const Vector2& p_force) {
Physics2DServer::get_singleton()->body_set_applied_force(get_rid(), p_force);
};
Vector2 RigidBody2D::get_applied_force() const {
return Physics2DServer::get_singleton()->body_get_applied_force(get_rid());
};
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void RigidBody2D::set_continuous_collision_detection_mode(CCDMode p_mode) {
ccd_mode=p_mode;
Physics2DServer::get_singleton()->body_set_continuous_collision_detection_mode(get_rid(),Physics2DServer::CCDMode(p_mode));
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}
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RigidBody2D::CCDMode RigidBody2D::get_continuous_collision_detection_mode() const {
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return ccd_mode;
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}
void RigidBody2D::set_contact_monitor(bool p_enabled) {
if (p_enabled==is_contact_monitor_enabled())
return;
if (!p_enabled) {
for(Map<ObjectID,BodyState>::Element *E=contact_monitor->body_map.front();E;E=E->next()) {
//clean up mess
}
memdelete( contact_monitor );
contact_monitor=NULL;
} else {
contact_monitor = memnew( ContactMonitor );
}
}
bool RigidBody2D::is_contact_monitor_enabled() const {
return contact_monitor!=NULL;
}
void RigidBody2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_mode","mode"),&RigidBody2D::set_mode);
ObjectTypeDB::bind_method(_MD("get_mode"),&RigidBody2D::get_mode);
ObjectTypeDB::bind_method(_MD("set_mass","mass"),&RigidBody2D::set_mass);
ObjectTypeDB::bind_method(_MD("get_mass"),&RigidBody2D::get_mass);
ObjectTypeDB::bind_method(_MD("set_weight","weight"),&RigidBody2D::set_weight);
ObjectTypeDB::bind_method(_MD("get_weight"),&RigidBody2D::get_weight);
ObjectTypeDB::bind_method(_MD("set_friction","friction"),&RigidBody2D::set_friction);
ObjectTypeDB::bind_method(_MD("get_friction"),&RigidBody2D::get_friction);
ObjectTypeDB::bind_method(_MD("set_bounce","bounce"),&RigidBody2D::set_bounce);
ObjectTypeDB::bind_method(_MD("get_bounce"),&RigidBody2D::get_bounce);
ObjectTypeDB::bind_method(_MD("set_linear_velocity","linear_velocity"),&RigidBody2D::set_linear_velocity);
ObjectTypeDB::bind_method(_MD("get_linear_velocity"),&RigidBody2D::get_linear_velocity);
ObjectTypeDB::bind_method(_MD("set_angular_velocity","angular_velocity"),&RigidBody2D::set_angular_velocity);
ObjectTypeDB::bind_method(_MD("get_angular_velocity"),&RigidBody2D::get_angular_velocity);
ObjectTypeDB::bind_method(_MD("set_max_contacts_reported","amount"),&RigidBody2D::set_max_contacts_reported);
ObjectTypeDB::bind_method(_MD("get_max_contacts_reported"),&RigidBody2D::get_max_contacts_reported);
ObjectTypeDB::bind_method(_MD("set_use_custom_integrator","enable"),&RigidBody2D::set_use_custom_integrator);
ObjectTypeDB::bind_method(_MD("is_using_custom_integrator"),&RigidBody2D::is_using_custom_integrator);
ObjectTypeDB::bind_method(_MD("set_contact_monitor","enabled"),&RigidBody2D::set_contact_monitor);
ObjectTypeDB::bind_method(_MD("is_contact_monitor_enabled"),&RigidBody2D::is_contact_monitor_enabled);
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ObjectTypeDB::bind_method(_MD("set_continuous_collision_detection_mode","mode"),&RigidBody2D::set_continuous_collision_detection_mode);
ObjectTypeDB::bind_method(_MD("get_continuous_collision_detection_mode"),&RigidBody2D::get_continuous_collision_detection_mode);
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ObjectTypeDB::bind_method(_MD("set_axis_velocity","axis_velocity"),&RigidBody2D::set_axis_velocity);
ObjectTypeDB::bind_method(_MD("apply_impulse","pos","impulse"),&RigidBody2D::apply_impulse);
ObjectTypeDB::bind_method(_MD("set_applied_force","force"),&RigidBody2D::set_applied_force);
ObjectTypeDB::bind_method(_MD("get_applied_force"),&RigidBody2D::get_applied_force);
ObjectTypeDB::bind_method(_MD("set_active","active"),&RigidBody2D::set_active);
ObjectTypeDB::bind_method(_MD("is_active"),&RigidBody2D::is_active);
ObjectTypeDB::bind_method(_MD("set_can_sleep","able_to_sleep"),&RigidBody2D::set_can_sleep);
ObjectTypeDB::bind_method(_MD("is_able_to_sleep"),&RigidBody2D::is_able_to_sleep);
ObjectTypeDB::bind_method(_MD("_direct_state_changed"),&RigidBody2D::_direct_state_changed);
ObjectTypeDB::bind_method(_MD("_body_enter_scene"),&RigidBody2D::_body_enter_scene);
ObjectTypeDB::bind_method(_MD("_body_exit_scene"),&RigidBody2D::_body_exit_scene);
BIND_VMETHOD(MethodInfo("_integrate_forces",PropertyInfo(Variant::OBJECT,"state:Physics2DDirectBodyState")));
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ADD_PROPERTY( PropertyInfo(Variant::INT,"mode",PROPERTY_HINT_ENUM,"Rigid,Static,Character,Kinematic"),_SCS("set_mode"),_SCS("get_mode"));
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ADD_PROPERTY( PropertyInfo(Variant::REAL,"mass",PROPERTY_HINT_EXP_RANGE,"0.01,65535,0.01"),_SCS("set_mass"),_SCS("get_mass"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"weight",PROPERTY_HINT_EXP_RANGE,"0.01,65535,0.01",PROPERTY_USAGE_EDITOR),_SCS("set_weight"),_SCS("get_weight"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"friction",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_friction"),_SCS("get_friction"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"bounce",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_bounce"),_SCS("get_bounce"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"custom_integrator"),_SCS("set_use_custom_integrator"),_SCS("is_using_custom_integrator"));
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ADD_PROPERTY( PropertyInfo(Variant::INT,"continuous_cd",PROPERTY_HINT_ENUM,"Disabled,Cast Ray,Cast Shape"),_SCS("set_continuous_collision_detection_mode"),_SCS("get_continuous_collision_detection_mode"));
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ADD_PROPERTY( PropertyInfo(Variant::INT,"contacts_reported"),_SCS("set_max_contacts_reported"),_SCS("get_max_contacts_reported"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"contact_monitor"),_SCS("set_contact_monitor"),_SCS("is_contact_monitor_enabled"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"active"),_SCS("set_active"),_SCS("is_active"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"can_sleep"),_SCS("set_can_sleep"),_SCS("is_able_to_sleep"));
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"velocity/linear"),_SCS("set_linear_velocity"),_SCS("get_linear_velocity"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"velocity/angular"),_SCS("set_angular_velocity"),_SCS("get_angular_velocity"));
ADD_SIGNAL( MethodInfo("body_enter_shape",PropertyInfo(Variant::INT,"body_id"),PropertyInfo(Variant::OBJECT,"body"),PropertyInfo(Variant::INT,"body_shape"),PropertyInfo(Variant::INT,"local_shape")));
ADD_SIGNAL( MethodInfo("body_exit_shape",PropertyInfo(Variant::INT,"body_id"),PropertyInfo(Variant::OBJECT,"body"),PropertyInfo(Variant::INT,"body_shape"),PropertyInfo(Variant::INT,"local_shape")));
ADD_SIGNAL( MethodInfo("body_enter",PropertyInfo(Variant::OBJECT,"body")));
ADD_SIGNAL( MethodInfo("body_exit",PropertyInfo(Variant::OBJECT,"body")));
BIND_CONSTANT( MODE_STATIC );
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BIND_CONSTANT( MODE_KINEMATIC );
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BIND_CONSTANT( MODE_RIGID );
BIND_CONSTANT( MODE_CHARACTER );
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BIND_CONSTANT( CCD_MODE_DISABLED );
BIND_CONSTANT( CCD_MODE_CAST_RAY );
BIND_CONSTANT( CCD_MODE_CAST_SHAPE );
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}
RigidBody2D::RigidBody2D() : PhysicsBody2D(Physics2DServer::BODY_MODE_RIGID) {
mode=MODE_RIGID;
bounce=0;
mass=1;
friction=1;
max_contacts_reported=0;
state=NULL;
angular_velocity=0;
active=true;
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ccd_mode=CCD_MODE_DISABLED;
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custom_integrator=false;
contact_monitor=NULL;
can_sleep=true;
Physics2DServer::get_singleton()->body_set_force_integration_callback(get_rid(),this,"_direct_state_changed");
}
RigidBody2D::~RigidBody2D() {
if (contact_monitor)
memdelete( contact_monitor );
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}
//////////////////////////
Variant KinematicBody2D::_get_collider() const {
ObjectID oid=get_collider();
if (oid==0)
return Variant();
Object *obj = ObjectDB::get_instance(oid);
if (!obj)
return Variant();
Reference *ref = obj->cast_to<Reference>();
if (ref) {
return Ref<Reference>(ref);
}
return obj;
}
bool KinematicBody2D::_ignores_mode(Physics2DServer::BodyMode p_mode) const {
switch(p_mode) {
case Physics2DServer::BODY_MODE_STATIC: return !collide_static;
case Physics2DServer::BODY_MODE_KINEMATIC: return !collide_kinematic;
case Physics2DServer::BODY_MODE_RIGID: return !collide_rigid;
case Physics2DServer::BODY_MODE_CHARACTER: return !collide_character;
}
return true;
}
bool KinematicBody2D::is_trapped() const {
ERR_FAIL_COND_V(!is_inside_scene(),false);
Physics2DDirectSpaceState *dss = Physics2DServer::get_singleton()->space_get_direct_state(get_world_2d()->get_space());
ERR_FAIL_COND_V(!dss,false);
const int max_shapes=32;
Physics2DDirectSpaceState::ShapeResult sr[max_shapes];
Set<RID> exclude;
exclude.insert(get_rid());
for(int i=0;i<get_shape_count();i++) {
int res = dss->intersect_shape(get_shape(i)->get_rid(), get_global_transform() * get_shape_transform(i),Vector2(),sr,max_shapes,exclude);
for(int j=0;j<res;j++) {
Physics2DServer::BodyMode bm = Physics2DServer::get_singleton()->body_get_mode(sr[j].rid);
if (!_ignores_mode(bm)) {
return true; //it's indeed trapped
}
}
}
return false;
}
void KinematicBody2D::untrap() {
//this is reaaaaaaaaally wild, will probably only work for simple cases
ERR_FAIL_COND(!is_inside_scene());
Physics2DDirectSpaceState *dss = Physics2DServer::get_singleton()->space_get_direct_state(get_world_2d()->get_space());
ERR_FAIL_COND(!dss);
const int max_shapes=32;
Physics2DDirectSpaceState::ShapeResult sr[max_shapes];
const int max_contacts=8;
Vector2 pairs[max_contacts*2];
Set<RID> exclude;
exclude.insert(get_rid());
Vector2 untrap_vec;
for(int i=0;i<get_shape_count();i++) {
Matrix32 shape_xform = get_global_transform() * get_shape_transform(i);
int res = dss->intersect_shape(get_shape(i)->get_rid(), shape_xform,Vector2(),sr,max_shapes,exclude);
for(int j=0;j<res;j++) {
Physics2DServer::BodyMode bm = Physics2DServer::get_singleton()->body_get_mode(sr[j].rid);
if (_ignores_mode(bm)) {
exclude.insert(sr[j].rid);
} else {
int rc;
bool c = Physics2DServer::get_singleton()->body_collide_shape(sr[j].rid,sr[j].shape,get_shape(i)->get_rid(),shape_xform,Vector2(),pairs,max_contacts,rc);
if (c) {
for(int k=0;k<rc;k++) {
untrap_vec+=pairs[k*2+0]-pairs[k*2+1];
}
}
}
}
}
untrap_vec += untrap_vec.normalized()*margin;
Matrix32 gt = get_global_transform();
gt.elements[2]+=untrap_vec;
set_global_transform(gt);
}
Vector2 KinematicBody2D::move(const Vector2& p_motion) {
colliding=false;
ERR_FAIL_COND_V(!is_inside_scene(),Vector2());
Physics2DDirectSpaceState *dss = Physics2DServer::get_singleton()->space_get_direct_state(get_world_2d()->get_space());
ERR_FAIL_COND_V(!dss,Vector2());
const int max_shapes=32;
Physics2DDirectSpaceState::ShapeResult sr[max_shapes];
float best_travel = 1e20;
Physics2DDirectSpaceState::MotionCastCollision mcc_final;
Set<RID> exclude;
exclude.insert(get_rid());
print_line("pos: "+get_global_pos());
print_line("mlen: "+p_motion);
if (!collide_static || ! collide_rigid || !collide_character || !collide_kinematic) {
//fill exclude list..
for(int i=0;i<get_shape_count();i++) {
int res = dss->intersect_shape(get_shape(i)->get_rid(), get_global_transform() * get_shape_transform(i),p_motion,sr,max_shapes,exclude);
for(int j=0;j<res;j++) {
Physics2DServer::BodyMode bm = Physics2DServer::get_singleton()->body_get_mode(sr[j].rid);
if (_ignores_mode(bm)) {
exclude.insert(sr[j].rid);
} else {
// print_line("DANGER???");
}
}
}
}
for(int i=0;i<get_shape_count();i++) {
Physics2DDirectSpaceState::MotionCastCollision mcc;
bool res = dss->cast_motion(get_shape(i)->get_rid(), get_global_transform() * get_shape_transform(i), p_motion, mcc,exclude,0);
if (res==false)
continue;
if (mcc.travel<=0) {
//uh it's trapped
colliding=false;
return p_motion;
}
if (mcc.travel < best_travel) {
mcc_final=mcc;
best_travel=mcc.travel;
}
}
float motion;
Vector2 motion_ret;
Vector2 push;
if (best_travel>1) {
//not collided
colliding=false;
motion=p_motion.length(); //no stopped
} else {
colliding=true;
collision=mcc_final.point;
normal=mcc_final.normal;
collider=mcc_final.collider_id;
Vector2 mnormal=p_motion.normalized();
float sine = Math::abs(mnormal.dot(normal));
float retreat=0;
motion = p_motion.length()*mcc_final.travel;
if (sine==0) {
//something odd going on, do not allow motion?
retreat=motion;
} else {
retreat = margin/sine;
if (retreat>motion)
retreat=motion;
}
motion_ret=p_motion.normalized() * ( p_motion.length() - motion);
motion-=retreat;
}
Matrix32 gt = get_global_transform();
gt.elements[2]+=p_motion.normalized()*motion;
set_global_transform(gt);
return motion_ret;
}
Vector2 KinematicBody2D::move_to(const Vector2& p_position) {
return move(p_position-get_global_pos());
}
bool KinematicBody2D::can_move_to(const Vector2& p_position) {
ERR_FAIL_COND_V(!is_inside_scene(),false);
Physics2DDirectSpaceState *dss = Physics2DServer::get_singleton()->space_get_direct_state(get_world_2d()->get_space());
ERR_FAIL_COND_V(!dss,false);
const int max_shapes=32;
Physics2DDirectSpaceState::ShapeResult sr[max_shapes];
Vector2 motion = p_position-get_global_pos();
Physics2DDirectSpaceState::MotionCastCollision mcc_final;
Set<RID> exclude;
exclude.insert(get_rid());
//fill exclude list..
for(int i=0;i<get_shape_count();i++) {
int res = dss->intersect_shape(get_shape(i)->get_rid(), get_global_transform() * get_shape_transform(i),motion,sr,max_shapes,exclude);
for(int j=0;j<res;j++) {
Physics2DServer::BodyMode bm = Physics2DServer::get_singleton()->body_get_mode(sr[j].rid);
if (_ignores_mode(bm)) {
exclude.insert(sr[j].rid);
continue;
}
return false; //omg collided
}
}
return true;
}
bool KinematicBody2D::is_colliding() const {
ERR_FAIL_COND_V(!is_inside_scene(),false);
return colliding;
}
Vector2 KinematicBody2D::get_collision_pos() const {
ERR_FAIL_COND_V(!colliding,Vector2());
return collision;
}
Vector2 KinematicBody2D::get_collision_normal() const {
ERR_FAIL_COND_V(!colliding,Vector2());
return normal;
}
ObjectID KinematicBody2D::get_collider() const {
ERR_FAIL_COND_V(!colliding,0);
return collider;
}
void KinematicBody2D::set_collide_with_static_bodies(bool p_enable) {
collide_static=p_enable;
}
bool KinematicBody2D::can_collide_with_static_bodies() const {
return collide_static;
}
void KinematicBody2D::set_collide_with_rigid_bodies(bool p_enable) {
collide_rigid=p_enable;
}
bool KinematicBody2D::can_collide_with_rigid_bodies() const {
return collide_rigid;
}
void KinematicBody2D::set_collide_with_kinematic_bodies(bool p_enable) {
collide_kinematic=p_enable;
}
bool KinematicBody2D::can_collide_with_kinematic_bodies() const {
return collide_kinematic;
}
void KinematicBody2D::set_collide_with_character_bodies(bool p_enable) {
collide_character=p_enable;
}
bool KinematicBody2D::can_collide_with_character_bodies() const {
return collide_character;
}
void KinematicBody2D::set_collision_margin(float p_margin) {
margin=p_margin;
}
float KinematicBody2D::get_collision_margin() const{
return margin;
}
void KinematicBody2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("is_trapped"),&KinematicBody2D::is_trapped);
ObjectTypeDB::bind_method(_MD("untrap"),&KinematicBody2D::untrap);
ObjectTypeDB::bind_method(_MD("move","rel_vec"),&KinematicBody2D::move);
ObjectTypeDB::bind_method(_MD("move_to","position"),&KinematicBody2D::move_to);
ObjectTypeDB::bind_method(_MD("can_move_to","position"),&KinematicBody2D::can_move_to);
ObjectTypeDB::bind_method(_MD("is_colliding"),&KinematicBody2D::is_colliding);
ObjectTypeDB::bind_method(_MD("get_collision_pos"),&KinematicBody2D::get_collision_pos);
ObjectTypeDB::bind_method(_MD("get_collision_normal"),&KinematicBody2D::get_collision_normal);
ObjectTypeDB::bind_method(_MD("get_collider:Object"),&KinematicBody2D::get_collider);
ObjectTypeDB::bind_method(_MD("set_collide_with_static_bodies","enable"),&KinematicBody2D::set_collide_with_static_bodies);
ObjectTypeDB::bind_method(_MD("can_collide_with_static_bodies"),&KinematicBody2D::can_collide_with_static_bodies);
ObjectTypeDB::bind_method(_MD("set_collide_with_kinematic_bodies","enable"),&KinematicBody2D::set_collide_with_kinematic_bodies);
ObjectTypeDB::bind_method(_MD("can_collide_with_kinematic_bodies"),&KinematicBody2D::can_collide_with_kinematic_bodies);
ObjectTypeDB::bind_method(_MD("set_collide_with_rigid_bodies","enable"),&KinematicBody2D::set_collide_with_rigid_bodies);
ObjectTypeDB::bind_method(_MD("can_collide_with_rigid_bodies"),&KinematicBody2D::can_collide_with_rigid_bodies);
ObjectTypeDB::bind_method(_MD("set_collide_with_character_bodies","enable"),&KinematicBody2D::set_collide_with_character_bodies);
ObjectTypeDB::bind_method(_MD("can_collide_with_character_bodies"),&KinematicBody2D::can_collide_with_character_bodies);
ObjectTypeDB::bind_method(_MD("set_collision_margin","pixels"),&KinematicBody2D::set_collision_margin);
ObjectTypeDB::bind_method(_MD("get_collision_margin","pixels"),&KinematicBody2D::get_collision_margin);
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"collide_with/static"),_SCS("set_collide_with_static_bodies"),_SCS("can_collide_with_static_bodies"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"collide_with/kinematic"),_SCS("set_collide_with_kinematic_bodies"),_SCS("can_collide_with_kinematic_bodies"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"collide_with/rigid"),_SCS("set_collide_with_rigid_bodies"),_SCS("can_collide_with_rigid_bodies"));
ADD_PROPERTY( PropertyInfo(Variant::BOOL,"collide_with/character"),_SCS("set_collide_with_character_bodies"),_SCS("can_collide_with_character_bodies"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"collision/margin",PROPERTY_HINT_RANGE,"0.01,256,0.01"),_SCS("set_collision_margin"),_SCS("get_collision_margin"));
}
KinematicBody2D::KinematicBody2D() : PhysicsBody2D(Physics2DServer::BODY_MODE_KINEMATIC){
collide_static=true;
collide_rigid=true;
collide_kinematic=true;
collide_character=true;
colliding=false;
collider=0;
margin=1;
}
KinematicBody2D::~KinematicBody2D() {
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}
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