Build 151020

A small yet complex feature, the "dead state" it is. From now on, the enemy drones that have their health depleted will occasionally (and only when damaged by some certain means) become a "corpse". In this state, the drones will spin randomly, and fly free and gravity-affected. Upon colliding a wall or another drone, the "corpse" will explode, killing a drone it hits in process. The feature is mostly cosmetic, yet looks very fun and immersive at times.