zpp_pool: ZPP_AABBPair
n1: ZPP_AABBNode
n2: ZPP_AABBNode
first: Bool
sleeping: Bool
id: Int
di: Int
arb: zpp_nape.dynamics.ZPP_Arbiter
next: ZPP_AABBPair
alloc(): Void
free(): Void
new(): Void