Added priapos city, fixed some glitches

added priapos, and fix some spawning glitches. was getting errors when
trying to create player_spawner in the obj_controller so we are back to
having to have player spawner in the starting room. lost cave darkness
randomly started drawing pure black so i had to change the opacity to
0.3 in the darkness draw code (in obj_controller draw event) dont know
why it started drawing pure black yet :\ fixed the wall_up and wall_down
sprite to fit better in more confined places, and made a new tree3
object that only uses the tree tops so we dont have to keep adding
1,000,000 trees to each level when doing collision. i think thats it.