[MERGED PR] Mobs entering chutes: Adds actionbar and animation

[Sundance]

Love the sprites, yes for more feedback, yes for non instantaneous chute-drag . Not sure about the 0.4 delay, might suggest lowering it to 0.3 or even 0.2. Chute-drag is a legit combat tactic and this might mess with it a little too much, but I'm open to be corrected.