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80 lines
1.7 KiB
Lua
80 lines
1.7 KiB
Lua
--[[
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Tube Library
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============
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Copyright (C) 2017 Joachim Stolberg
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LGPLv2.1+
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See LICENSE.txt for more information
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states.lua:
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A state model for tubelib nodes.
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]]--
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--
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-- Inventory Button States
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--
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tubelib.STOPPED = 1 -- not operational
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tubelib.RUNNING = 2 -- in normal operation
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tubelib.STANDBY = 3 -- nothing to do or blocked anyhow
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tubelib.FAULT = 4 -- any fault state, which has to be fixed by the player
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tubelib.StatesImg = {
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"tubelib_inv_button_off.png",
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"tubelib_inv_button_on.png",
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"tubelib_inv_button_standby.png",
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"tubelib_inv_button_error.png"
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}
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-- Return state button image for the node inventory
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function tubelib.state_button(state)
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if state and state < 5 and state > 0 then
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return tubelib.StatesImg[state]
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end
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return tubelib.StatesImg[tubelib.FAULT]
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end
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--
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-- 'running' variable States
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--
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tubelib.STATE_RUNNING = 1 -- in normal operation
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tubelib.STATE_STOPPED = 0 -- not operational
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tubelib.STATE_STANDBY = -1 -- nothing to do
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tubelib.STATE_BLOCKED = -2 -- pushing node is blocked due to a full inventory
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tubelib.STATE_FAULT = -3 -- any fault state, which has to be fixed by the player
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-- Return machine state based on the running counter
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function tubelib.state(running)
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if running > 0 then
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return tubelib.RUNNING
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elseif running == 0 then
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return tubelib.STOPPED
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elseif running == -1 then
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return tubelib.STANDBY
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elseif running == -2 then
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return tubelib.BLOCKED
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else
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return tubelib.FAULT
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end
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end
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-- Return state string based on the running counter
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function tubelib.statestring(running)
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if running > 0 then
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return "running"
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elseif running == 0 then
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return "stopped"
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elseif running == -1 then
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return "standby"
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elseif running == -2 then
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return "blocked"
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else
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return "fault"
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end
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end |