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@ -30,7 +30,7 @@ local TOTAL_MAX = INV_SIZE * FUEL_STACK_MAX
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local function count_coal(metadata)
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local function count_coal(metadata)
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local total = 0
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local total = 0
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for _,stack in pairs(metadata.inventory.fuel) do
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for _,stack in pairs(metadata.inventory.fuel or {}) do
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total = total + stack:get_count()
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total = total + stack:get_count()
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end
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end
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return total
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return total
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