fix more oop and bugs

sim/simulation.lua

@@ -271,31 +271,31 @@ function Simulation.tick(self)
 		Group.setstate(group, newstate)
 	end
 	self.groupqueue = {}
-
+	
 	for k, gate in pairs(self.initqueue) do
 		gate.definition.init(gate)
 	end
 	self.initqueue = {}
-
+	
 	for gate, inputs in pairs(self.inputqueue) do
 		for inputidx, argv in ipairs(inputs) do
 			gate.definition.input(gate, argv)
 		end
 	end
 	self.inputqueue = {}
-
+	
 	if self.tickqueue[self.currenttick] ~= nil then
 		for i, gate in ipairs(self.tickqueue[self.currenttick]) do
 			Simulation.queuegate(self, gate)
 		end
 		self.tickqueue[self.currenttick] = nil
 	end
-
+	
 	for k, gate in pairs(self.gatequeue) do
 		gate.definition.logic(gate)
 	end
 	self.gatequeue = {}
-
+	
 	self.currenttick = self.currenttick + 1
 end