New Spawn Code (Read Description)

Update code for (extra) spawned enemies. Now spawns a goblin every 3
seconds for a max of 5 new goblins. Also, a angular movement modifier
that can be used to adjust the pattern of movement for the new goblins
thus giving us the possibility to employ an idea that "Newly Spawned
Goblins" have "learned" from initially spawned goblins and have changed
their movement pattern