Create collidable items

def create_items(self):
        """
        Create collidable items
        """
        if not self.mode['items'] or len(self.mode['items']) == 0: return

        # FIXME: Check if already contains
        self.collman.add(self.player)

        for k in self.mode['items']:
            item = self.mode['items'][k]
            #{'terminal': False, 'num': 50, 'scale': 1.0, 'reward': 2.0}
            radius = item['scale'] * self.player.radius
            for i in range(item['num']):
                self.add_item(radius, k)