Another more serious bug fix

Fixes

• Fixed teleporter not responding to arrows

Turned out that it was treating the arrows as being "deflected", so I've introduced a new counter to see how many times an arrow has been deflected instead of just an yes/no.

This also means that I was able to add it to the score, so a shot that bounces twice before hitting an enemy is now worth more than a shot that only bounces once :)