Expose softness parameter of pin joint to the editor.

scene/2d/joints_2d.cpp

@@ -126,7 +126,7 @@ void Joint2D::_bind_methods() {
 
 	ADD_PROPERTY( PropertyInfo( Variant::NODE_PATH, "node_a"), _SCS("set_node_a"),_SCS("get_node_a") );
 	ADD_PROPERTY( PropertyInfo( Variant::NODE_PATH, "node_b"), _SCS("set_node_b"),_SCS("get_node_b") );
-	ADD_PROPERTY( PropertyInfo( Variant::REAL, "bias/bias",PROPERTY_HINT_RANGE,"0,0.9,0.01"), _SCS("set_bias"),_SCS("get_bias") );
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "bias/bias",PROPERTY_HINT_RANGE,"0,0.9,0.001"), _SCS("set_bias"),_SCS("get_bias") );
 
 }
 
@@ -175,15 +175,37 @@ RID PinJoint2D::_configure_joint() {
 		//add a collision exception between both
 		Physics2DServer::get_singleton()->body_add_collision_exception(body_a->get_rid(),body_b->get_rid());
 	}
+	RID pj = Physics2DServer::get_singleton()->pin_joint_create(get_global_transform().get_origin(),body_a->get_rid(),body_b?body_b->get_rid():RID());
+	Physics2DServer::get_singleton()->pin_joint_set_param(pj, Physics2DServer::PIN_JOINT_SOFTNESS, softness);
+	return pj;
 
-	return Physics2DServer::get_singleton()->pin_joint_create(get_global_transform().get_origin(),body_a->get_rid(),body_b?body_b->get_rid():RID());
+}
+
+void PinJoint2D::set_softness(real_t p_softness) {
+
+	softness=p_softness;
+	update();
+	if (get_joint().is_valid())
+		Physics2DServer::get_singleton()->pin_joint_set_param(get_joint(), Physics2DServer::PIN_JOINT_SOFTNESS, p_softness);
 
 }
 
+real_t PinJoint2D::get_softness() const {
 
-PinJoint2D::PinJoint2D() {
+	return softness;
+}
+
+void PinJoint2D::_bind_methods() {
+
+	ObjectTypeDB::bind_method(_MD("set_softness","softness"), &PinJoint2D::set_softness);
+	ObjectTypeDB::bind_method(_MD("get_softness"), &PinJoint2D::get_softness);
 
+	ADD_PROPERTY( PropertyInfo( Variant::REAL, "softness", PROPERTY_HINT_EXP_RANGE,"0.00,16,0.01"), _SCS("set_softness"), _SCS("get_softness"));
+}
+
+PinJoint2D::PinJoint2D() {
 
+	softness = 0;
 }
 
 

scene/2d/joints_2d.h

@@ -72,13 +72,17 @@ class PinJoint2D : public Joint2D {
 
 	OBJ_TYPE(PinJoint2D,Joint2D);
 
+	real_t softness;
+
 protected:
 
 	void _notification(int p_what);
 	virtual RID _configure_joint();
+	static void _bind_methods();
 public:
 
-
+	void set_softness(real_t p_stiffness);
+	real_t get_softness() const;
 
 	PinJoint2D();
 };

servers/physics_2d/joints_2d_sw.cpp

@@ -279,6 +279,18 @@ void PinJoint2DSW::solve(float p_step){
 	P += impulse;
 }
 
+void PinJoint2DSW::set_param(Physics2DServer::PinJointParam p_param, real_t p_value) {
+
+	if(p_param == Physics2DServer::PIN_JOINT_SOFTNESS)
+		softness = p_value;
+}
+
+real_t PinJoint2DSW::get_param(Physics2DServer::PinJointParam p_param) const {
+
+	if(p_param == Physics2DServer::PIN_JOINT_SOFTNESS)
+		return softness;
+	ERR_FAIL_V(0);
+}
 
 PinJoint2DSW::PinJoint2DSW(const Vector2& p_pos,Body2DSW* p_body_a,Body2DSW* p_body_b) : Joint2DSW(_arr,p_body_b?2:1) {
 

servers/physics_2d/joints_2d_sw.h

@@ -121,6 +121,8 @@ public:
 	virtual bool setup(float p_step);
 	virtual void solve(float p_step);
 
+	void set_param(Physics2DServer::PinJointParam p_param, real_t p_value);
+	real_t get_param(Physics2DServer::PinJointParam p_param) const;
 
 	PinJoint2DSW(const Vector2& p_pos,Body2DSW* p_body_a,Body2DSW* p_body_b=NULL);
 	~PinJoint2DSW();

servers/physics_2d/physics_2d_server_sw.cpp

@@ -1096,6 +1096,25 @@ RID Physics2DServerSW::damped_spring_joint_create(const Vector2& p_anchor_a,cons
 
 }
 
+void Physics2DServerSW::pin_joint_set_param(RID p_joint, PinJointParam p_param, real_t p_value) {
+
+	Joint2DSW *j = joint_owner.get(p_joint);
+	ERR_FAIL_COND(!j);
+	ERR_FAIL_COND(j->get_type()!=JOINT_PIN);
+
+	PinJoint2DSW *pin_joint = static_cast<PinJoint2DSW*>(j);
+	pin_joint->set_param(p_param, p_value);
+}
+
+real_t Physics2DServerSW::pin_joint_get_param(RID p_joint, PinJointParam p_param) const {
+	Joint2DSW *j = joint_owner.get(p_joint);
+	ERR_FAIL_COND_V(!j,0);
+	ERR_FAIL_COND_V(j->get_type()!=JOINT_PIN,0);
+
+	PinJoint2DSW *pin_joint = static_cast<PinJoint2DSW*>(j);
+	return pin_joint->get_param(p_param);
+}
+
 void Physics2DServerSW::damped_string_joint_set_param(RID p_joint, DampedStringParam p_param, real_t p_value) {
 
 

servers/physics_2d/physics_2d_server_sw.h

@@ -243,6 +243,8 @@ public:
 	virtual RID pin_joint_create(const Vector2& p_pos,RID p_body_a,RID p_body_b=RID());
 	virtual RID groove_joint_create(const Vector2& p_a_groove1,const Vector2& p_a_groove2, const Vector2& p_b_anchor, RID p_body_a,RID p_body_b);
 	virtual RID damped_spring_joint_create(const Vector2& p_anchor_a,const Vector2& p_anchor_b,RID p_body_a,RID p_body_b=RID());
+	virtual void pin_joint_set_param(RID p_joint, PinJointParam p_param, real_t p_value);
+	virtual real_t pin_joint_get_param(RID p_joint, PinJointParam p_param) const;
 	virtual void damped_string_joint_set_param(RID p_joint, DampedStringParam p_param, real_t p_value);
 	virtual real_t damped_string_joint_get_param(RID p_joint, DampedStringParam p_param) const;
 

servers/physics_2d/physics_2d_server_wrap_mt.h

@@ -258,6 +258,9 @@ public:
 	FUNC5R(RID,groove_joint_create,const Vector2&,const Vector2&,const Vector2&,RID,RID);
 	FUNC4R(RID,damped_spring_joint_create,const Vector2&,const Vector2&,RID,RID);
 
+	FUNC3(pin_joint_set_param,RID,PinJointParam,real_t);
+	FUNC2RC(real_t,pin_joint_get_param,RID,PinJointParam);
+
 	FUNC3(damped_string_joint_set_param,RID,DampedStringParam,real_t);
 	FUNC2RC(real_t,damped_string_joint_get_param,RID,DampedStringParam);
 

servers/physics_2d_server.h

@@ -516,6 +516,13 @@ public:
 	virtual RID groove_joint_create(const Vector2& p_a_groove1,const Vector2& p_a_groove2, const Vector2& p_b_anchor, RID p_body_a,RID p_body_b)=0;
 	virtual RID damped_spring_joint_create(const Vector2& p_anchor_a,const Vector2& p_anchor_b,RID p_body_a,RID p_body_b=RID())=0;
 
+	enum PinJointParam {
+		PIN_JOINT_SOFTNESS
+	};
+
+	virtual void pin_joint_set_param(RID p_joint, PinJointParam p_param, real_t p_value)=0;
+	virtual real_t pin_joint_get_param(RID p_joint, PinJointParam p_param) const=0;
+
 	enum DampedStringParam {
 		DAMPED_STRING_REST_LENGTH,
 		DAMPED_STRING_STIFFNESS,