diff --git a/environments/factory/base_factory.py b/environments/factory/base_factory.py
index 0fbb306..8880dbc 100644
--- a/environments/factory/base_factory.py
+++ b/environments/factory/base_factory.py
@@ -45,19 +45,16 @@ class BaseFactory(object):
             collisions_vec = self.state[:, x, y].copy()  # otherwise you overwrite the grid/state
             collisions_vec[i+1] = 0  # no self-collisions
             collision_vecs.append(collisions_vec)
-        self.handle_collisions(collisions_vec)
-        r += self.step_core(collisions_vec, actions, r)
+        reward, info = self.step_core(collisions_vec, actions, r)
+        r += reward
         if self.steps >= self.max_steps:
             self.done = True
-        return self.state, r, self.done, {}
+        return self.state, r, self.done, info
 
     def make_move(self, agent_i, old_pos, new_pos):
         (x, y), (x_new, y_new) = old_pos, new_pos
         self.state[agent_i+1, x, y] = 0
         self.state[agent_i+1, x_new, y_new] = 1
 
-    def handle_collisions(self, vecs):
-        pass
-
     def step_core(self, collisions_vec, actions, r):
-        return 0
+        return 0, {}
diff --git a/environments/factory/simple_factory.py b/environments/factory/simple_factory.py
index f809abc..ba4c77f 100644
--- a/environments/factory/simple_factory.py
+++ b/environments/factory/simple_factory.py
@@ -11,12 +11,16 @@ class SimpleFactory(BaseFactory):
         super().reset()
         dirt_slice = np.zeros((1, *self.state.shape[1:]))
         self.state = np.concatenate((self.state, dirt_slice))  # dirt is now the last slice
+        free_for_dirt = self.free_for_dirt()
+        for x, y in free_for_dirt[:self.max_dirt]:
+            self.state[-1, x, y] = 1
+        print(self.state)
+
+    def free_for_dirt(self):
         free_for_dirt = self.state.sum(0)
         free_for_dirt = np.argwhere(free_for_dirt == 0)
         np.random.shuffle(free_for_dirt)
-        for x,y in free_for_dirt[:self.max_dirt]:
-            self.state[-1, x, y] = 1
-        print(self.state)
+        return free_for_dirt
 
 
 if __name__ == '__main__':