From fa4ff5c57bd0ddaced216e714e266a2419c777d3 Mon Sep 17 00:00:00 2001
From: Max Teufel <max@teufelsnetz.com>
Date: Sun, 5 Jun 2016 15:54:51 +0200
Subject: [PATCH] InvisibleWall: inherit from MovingObject, remove unnecessary
 code (#433)

---
 src/object/invisible_wall.cpp | 19 ++++++++++++++-----
 src/object/invisible_wall.hpp | 11 +++++------
 2 files changed, 19 insertions(+), 11 deletions(-)

diff --git a/src/object/invisible_wall.cpp b/src/object/invisible_wall.cpp
index ee78bcb4273..7bcab7dae00 100644
--- a/src/object/invisible_wall.cpp
+++ b/src/object/invisible_wall.cpp
@@ -19,14 +19,13 @@
 #include "supertux/object_factory.hpp"
 #include "util/reader_mapping.hpp"
 
-InvisibleWall::InvisibleWall(const ReaderMapping& lisp) :
-  MovingSprite(lisp, "images/objects/invisible/invisible.sprite", LAYER_TILES, COLGROUP_STATIC),
-  physic(),
-  width(),
-  height()
+InvisibleWall::InvisibleWall(const ReaderMapping& lisp)
 {
+  float width, height;
+
   if (!lisp.get("width", width)) width = 32;
   if (!lisp.get("height", height)) height = 32;
+
   bbox.set_size(width, height);
 }
 
@@ -36,4 +35,14 @@ InvisibleWall::collision(GameObject& , const CollisionHit& )
   return FORCE_MOVE;
 }
 
+void
+InvisibleWall::draw(DrawingContext& )
+{
+}
+
+void
+InvisibleWall::update(float )
+{
+}
+
 /* EOF */
diff --git a/src/object/invisible_wall.hpp b/src/object/invisible_wall.hpp
index 144569f3856..586ada0b449 100644
--- a/src/object/invisible_wall.hpp
+++ b/src/object/invisible_wall.hpp
@@ -17,20 +17,19 @@
 #ifndef HEADER_SUPERTUX_OBJECT_INVISIBLE_WALL_HPP
 #define HEADER_SUPERTUX_OBJECT_INVISIBLE_WALL_HPP
 
-#include "object/moving_sprite.hpp"
-#include "supertux/physic.hpp"
+#include "supertux/moving_object.hpp"
+#include "util/reader_fwd.hpp"
 
 /** A tile that starts falling down if tux stands to long on it */
-class InvisibleWall : public MovingSprite
+class InvisibleWall : public MovingObject
 {
 public:
   InvisibleWall(const ReaderMapping& lisp);
 
   HitResponse collision(GameObject& other, const CollisionHit& hit);
 
-private:
-  Physic physic;
-  float width, height;
+  void draw(DrawingContext& context);
+  void update(float elapsed_time);
 };
 
 #endif