71 lines
2.6 KiB
Lua
71 lines
2.6 KiB
Lua
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local CONTROL_BASE_RPM = 16
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local CONTROL_MAX_RPM = 256
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-- Converts an RPM speed to a blocks-per-second speed.
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local function rpmToBps(rpm)
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return (10 / 256) * rpm
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end
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-- Computes a series of keyframes describing the linear motion of the elevator.
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local function computeLinearMotion(distance)
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local preFrames = {}
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local postFrames = {}
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local intervalDuration = 0.5
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-- Linear motion calculation
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local v1Dist = 2 * intervalDuration * rpmToBps(CONTROL_BASE_RPM)
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local v2Dist = 2 * intervalDuration * rpmToBps(CONTROL_BASE_RPM * 2)
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local v3Dist = 2 * intervalDuration * rpmToBps(CONTROL_BASE_RPM * 4)
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local v4Dist = 2 * intervalDuration * rpmToBps(CONTROL_BASE_RPM * 8)
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local distanceToCover = distance
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local rpmFactor = 1
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while rpmFactor * CONTROL_BASE_RPM < CONTROL_MAX_RPM do
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print("Need to cover " .. distanceToCover .. " more meters.")
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local rpm = CONTROL_BASE_RPM * rpmFactor
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local potentialDistanceCovered = 2 * intervalDuration * rpmToBps(rpm)
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local nextRpmFactorDuration = (distanceToCover - potentialDistanceCovered) / rpmToBps(CONTROL_BASE_RPM * (rpmFactor + 1))
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print("We'd cover " .. potentialDistanceCovered .. " by moving at " .. rpm .. " rpm for " .. intervalDuration .. " seconds twice.")
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if potentialDistanceCovered <= distanceToCover and nextRpmFactorDuration >= 2 then
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local frame = {
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rpm = rpm,
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duration = intervalDuration
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}
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table.insert(preFrames, frame)
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table.insert(postFrames, 1, frame)
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distanceToCover = distanceToCover - potentialDistanceCovered
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rpmFactor = rpmFactor * 2
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elseif nextRpmFactorDuration < 2 then
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break
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end
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end
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-- Cover the remaining distance with the next rpmFactor.
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local finalRpm = CONTROL_BASE_RPM * rpmFactor
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local finalDuration = distanceToCover / rpmToBps(finalRpm)
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local finalFrame = {
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rpm = finalRpm,
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duration = finalDuration
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}
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local frames = {}
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for _, frame in pairs(preFrames) do table.insert(frames, frame) end
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table.insert(frames, finalFrame)
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for _, frame in pairs(postFrames) do table.insert(frames, frame) end
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return frames
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end
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local function printFrames(frames)
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for _, frame in pairs(frames) do
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print("Frame: rpm = " .. tostring(frame.rpm) .. ", duration = " .. tostring(frame.duration))
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end
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end
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local frames = computeLinearMotion(5)
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printFrames(frames)
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local dist = 0
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for _, frame in pairs(frames) do
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dist = dist + rpmToBps(frame.rpm) * frame.duration
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end
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print(dist)
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print(0.15 % 0.05 == 0)
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