62 lines
1.5 KiB
Lua
62 lines
1.5 KiB
Lua
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local function getBit(gate, val)
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local gatedata = Gate.getdata(gate)
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--print("get bit", val)
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if gatedata.listenState=="wait" then
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if val==1 then
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gatedata.listenState = "getbits"
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gatedata.bitsReceived = 0
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--print("", "state = listen")
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end
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elseif gatedata.listenState=="getbits" then
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gatedata.valReceived = gatedata.valReceived + math.pow(2, textbrick2_bitsNeeded-1-gatedata.bitsReceived)*val
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gatedata.bitsReceived = gatedata.bitsReceived+1
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--print("", "append", gatedata.bitsReceived-1, val)
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if gatedata.bitsReceived==textbrick2_bitsNeeded then
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gatedata.listenState = "terminate"
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end
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elseif gatedata.listenState=="terminate" then
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if val==1 then
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--print("", "terminate")
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local printid = gatedata.valReceived
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local printname = textbrick2_idxToPrint[printid]
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Gate.cb(gate, printname)
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--print("", "set print", string.format("%02x", printid), printname)
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end
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gatedata.listenState = "wait"
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gatedata.bitsReceived = 0
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gatedata.valReceived = 0
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end
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end
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local function changeTo(gate, val)
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local gatedata = Gate.getdata(gate)
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local tick = Gate.gettick(gate)
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local ticks = tick-gatedata.lastTickChanged
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local bits = math.min(ticks, 10)
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for i = 1, bits do
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getBit(gate, val)
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end
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gatedata.lastTickChanged = tick
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end
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return function(gate)
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if Gate.getportisrising(gate, 1) then
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changeTo(gate, 0)
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elseif Gate.getportisfalling(gate, 1) then
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changeTo(gate, 1)
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end
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end
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