diff --git a/sim/gate.lua b/sim/gate.lua
index 798e02f..0098047 100644
--- a/sim/gate.lua
+++ b/sim/gate.lua
@@ -27,11 +27,10 @@ end
 function Gate.setportstate(gate, index, state)
 	if state ~= gate.port_states[index] then
 		local group = gate.port_nets[index]
---		local net_state_num = gate.port_net_state_nums[index]
-		group.state_num = group.state_num - gate.port_states[index] + state
+		group.state_num[0] = group.state_num[0] - gate.port_states[index] + state
 		gate.port_states[index] = state
 		
-		if ((group.state_num>0) ~= (group.state==1)) and (group.in_queue[0]==0) then
+		if ((group.state_num[0]>0) ~= (group.state[0]==1)) and (group.in_queue[0]==0) then
 			Simulation.queuegroup(GSim, group)
 		end
 	end
diff --git a/sim/group.lua b/sim/group.lua
index 1437efb..29e5ee8 100644
--- a/sim/group.lua
+++ b/sim/group.lua
@@ -4,16 +4,16 @@ local ffi = FFI
 Group = {}
 
 function Group.new()
-	local o = {
+	local net = {
 		-- Logic Critical
-		state = 0,
-		state_num = 0,
+		state = ffi.new("int[1]"),
+		state_num = ffi.new("int[1]"),
 		in_queue = ffi.new("int[1]"),
+		update_tick = ffi.new("int[1]"),
 		gates_update = {},
 		num_gates_update = 0,
 		
 		fxstate = 0,
-		update_tick = 0,
 		
 		wires = {},
 		out_ports = {},
@@ -22,7 +22,11 @@ function Group.new()
 		nout_ports = 0,
 		nin_ports = 0,
 	}
-	return o
+	net.state[0] = 0
+	net.state_num[0] = 0
+	net.in_queue[0] = 0
+	net.update_tick[0] = 0
+	return net
 end
 
 function Group.getsize(group)
@@ -95,7 +99,7 @@ function Group.addport(group, port)
 		
 		group.out_ports[port] = port
 		group.nout_ports = group.nout_ports + 1
-		group.state_num = group.state_num + Port.getstate(port)
+		group.state_num[0] = group.state_num[0] + Port.getstate(port)
 		
 		Simulation.queuegroup_safe(GSim, group)
 		
@@ -121,7 +125,7 @@ function Group.removeport(group, port)
 		group.out_ports[port] = nil
 		group.nout_ports = group.nout_ports - 1
 		
-		group.state_num = group.state_num - Port.getstate(port)
+		group.state_num[0] = group.state_num[0] - Port.getstate(port)
 		
 		Simulation.queuegroup_safe(GSim, group)
 		
@@ -176,11 +180,11 @@ end
 
 -- Logic Critical
 function Group.setstate(group, state)
-	if state ~= group.state then
+	if state ~= group.state[0] then
 		local sim = GSim
 		
-		group.state = state
-		group.update_tick = sim.current_tick
+		group.state[0] = state
+		group.update_tick[0] = sim.current_tick
 		
 		local len = group.num_gates_update
 		for i = 1, len do
@@ -196,7 +200,7 @@ end
 
 -- Logic Critical
 function Group.update(group)
-	Group.setstate(group, group.state_num>0 and 1 or 0)
+	Group.setstate(group, group.state_num[0]>0 and 1 or 0)
 end
 
 function Group.rebuild_ports(group)
diff --git a/sim/network.lua b/sim/network.lua
index 017cf0f..a2352cd 100644
--- a/sim/network.lua
+++ b/sim/network.lua
@@ -148,12 +148,12 @@ function network_update()
 						if Port.getstate(port)==1 then numportson = numportson+1 end
 					end
 					
-					info = "\\c5Net " .. tostring(group):match("table: 0x(.+)"):upper() .. "\n" .. (Wire.getgroup(wire).state==1 and "\\c2On" or "\\c0Off") .. "\n" ..
+					info = "\\c5Net " .. tostring(group):match("table: 0x(.+)"):upper() .. "\n" .. (Wire.getgroup(wire).state[0]==1 and "\\c2On" or "\\c0Off") .. "\n" ..
 						"Wires: "..numwires.."\n"..
 						"In Ports: " ..numportsi.."\n"..
 						"Out Ports: "..numportso.."\n"..
 						"Gates Update: "..numgatesu.."\n"..
-						"Out Ports On: "..(group.state_num)
+						"Out Ports On: "..(group.state_num[0])
 					;
 				end
 				
diff --git a/sim/port.lua b/sim/port.lua
index 164f7ff..d38df55 100644
--- a/sim/port.lua
+++ b/sim/port.lua
@@ -36,11 +36,11 @@ function Port.getconnectionposition(port)
 end
 
 function Port.isrising(port)
-	return port.group.state==1 and (port.group.update_tick == GSim.current_tick)
+	return port.group.state[0]==1 and (port.group.update_tick[0] == GSim.current_tick)
 end
 
 function Port.isfalling(port)
-	return port.group.state==0 and (port.group.update_tick == GSim.current_tick)
+	return port.group.state[0]==0 and (port.group.update_tick[0] == GSim.current_tick)
 end
 
 function Port.getgate(port)
diff --git a/sim/simulation.lua b/sim/simulation.lua
index fba1c63..f90d475 100644
--- a/sim/simulation.lua
+++ b/sim/simulation.lua
@@ -371,10 +371,10 @@ end
 
 function Simulation.sendfxupdate(sim)
 	for k, group in pairs(sim.groupfxqueue) do
-		if group.state ~= group.fxstate then
-			group.fxstate = group.state
+		if group.state[0] ~= group.fxstate then
+			group.fxstate = group.state[0]
 			
-			local data = group.state
+			local data = group.state[0]
 			
 			for i, wire in pairs(group.wires) do
 				data = data .. "\t" .. Wire.getobjref(wire)
diff --git a/sim/wire.lua b/sim/wire.lua
index a9b39e1..8806e07 100644
--- a/sim/wire.lua
+++ b/sim/wire.lua
@@ -21,7 +21,7 @@ end
 
 function Wire.update(wire)
 	if wire.layer~=-1 then
-		network_send("WU\t" .. (wire.group.state~=0 and "1" or "0") .. "\t" .. wire.objref .. "\n")
+		network_send("WU\t" .. (wire.group.state[0]~=0 and "1" or "0") .. "\t" .. wire.objref .. "\n")
 	end
 end