diff --git a/3rd/box2d/include/box2d_bindings.hpp b/3rd/box2d/include/box2d_bindings.hpp
index 798e14bd..ada184a2 100644
--- a/3rd/box2d/include/box2d_bindings.hpp
+++ b/3rd/box2d/include/box2d_bindings.hpp
@@ -149,109 +149,6 @@ struct PyWorld {
     static void _register(VM* vm, PyObject* mod, PyObject* type);
 };
 
-
-struct Body final{
-    b2Body* body;
-    b2Fixture* fixture;
-    PyObject* obj;
-    Vec4 debug_color;
-
-    Body(b2World* world, PyObject* obj){
-        b2BodyDef def;
-        def.type = b2_dynamicBody;
-        // a weak reference to the object, no need to mark it
-        def.userData.pointer = reinterpret_cast<uintptr_t>(this);
-        body = world->CreateBody(&def);
-        fixture = nullptr;
-        this->obj = obj;
-        this->debug_color = Vec4(std::rand() / float(RAND_MAX), std::rand() / float(RAND_MAX), std::rand() / float(RAND_MAX), 1.0f);
-    }
-
-    void _update_fixture(b2Shape* shape){
-        body->DestroyFixture(fixture);  // this takes care of NULL case
-        fixture = body->CreateFixture(shape, 1.0f);
-    }
-
-    Vec4 get_debug_color() const{ return debug_color; }
-
-    b2Vec2 get_position() const{ return body->GetPosition(); }
-    void set_position(b2Vec2 v){ body->SetTransform(v, get_rotation()); }
-
-    void set_rotation(float angle){ body->SetTransform(get_position(), angle); }
-    float get_rotation() const{ return body->GetAngle(); }
-
-    void set_velocity(b2Vec2 v){ body->SetLinearVelocity(v); }
-    b2Vec2 get_velocity() const{ return body->GetLinearVelocity(); }
-
-    void set_angular_velocity(float omega){ body->SetAngularVelocity(omega); }
-    float get_angular_velocity() const{ return body->GetAngularVelocity(); }
-
-    void set_damping(float damping){ body->SetLinearDamping(damping); }
-    float get_damping(){ return body->GetLinearDamping(); }
-
-    void set_angular_damping(float damping){ body->SetAngularDamping(damping); }
-    float get_angular_damping() const{ return body->GetAngularDamping(); }
-
-    void set_gravity_scale(float scale){ body->SetGravityScale(scale); }
-    float get_gravity_scale() const{ return body->GetGravityScale(); }
-
-    void set_type(int type){ body->SetType(static_cast<b2BodyType>(type)); }
-    int get_type() const{ return static_cast<int>(body->GetType()); }
-
-    float get_mass() const{ return body->GetMass(); }
-    float get_inertia() const{ return body->GetInertia(); }
-
-    bool get_fixed_rotation() const{ return body->IsFixedRotation(); }
-    void set_fixed_rotation(bool fixed){ body->SetFixedRotation(fixed); }
-
-    // fixture settings
-    float get_density() const{ return fixture->GetDensity(); }
-    void set_density(float density){ fixture->SetDensity(density); }
-
-    float get_friction() const{ return fixture->GetFriction(); }
-    void set_friction(float friction){ fixture->SetFriction(friction); }
-
-    float get_restitution() const{ return fixture->GetRestitution(); }
-    void set_restitution(float restitution){ fixture->SetRestitution(restitution); }
-
-    float get_restitution_threshold() const{ return fixture->GetRestitutionThreshold(); }
-    void set_restitution_threshold(float threshold){ fixture->SetRestitutionThreshold(threshold); }
-
-    bool get_is_trigger() const{ return fixture->IsSensor(); }
-    void set_is_trigger(bool trigger){ fixture->SetSensor(trigger); }
-
-    // methods
-    void apply_force(b2Vec2 force, b2Vec2 point){
-        body->ApplyForce(force, point, true);
-    }
-
-    void apply_force_to_center(b2Vec2 force){
-        body->ApplyForceToCenter(force, true);
-    }
-
-    void apply_torque(float torque){
-        body->ApplyTorque(torque, true);
-    }
-
-    void apply_linear_impulse(b2Vec2 impulse, b2Vec2 point){
-        body->ApplyLinearImpulse(impulse, point, true);
-    }
-
-    void apply_linear_impulse_to_center(b2Vec2 impulse){
-        body->ApplyLinearImpulseToCenter(impulse, true);
-    }
-
-    void apply_angular_impulse(float impulse){
-        body->ApplyAngularImpulse(impulse, true);
-    }
-
-    void destroy(){
-        if(body == nullptr) return;
-        body->GetWorld()->DestroyBody(body);
-        body = nullptr;
-    }
-};
-
 }   // namespace imbox2d
 
 namespace pkpy{