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https://github.com/vgstation-coders/vgstation13.git
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4073ac9b00
All credits to the author for this handy little script. I Committed the modified python script to tool directory. Although it needs to be in the root folder of your repo to work. To notice the improved compile times, in dreammaker go to Build > Preferences > and untick "automatically set file_dir for subfolders" If this commit inteferes with any large projects just revert it, do your thing, then rerun the script. Easy-peasy. git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4488 316c924e-a436-60f5-8080-3fe189b3f50e
55 lines
1.7 KiB
Plaintext
55 lines
1.7 KiB
Plaintext
obj/machinery/atmospherics/binary/passive_gate
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//Tries to achieve target pressure at output (like a normal pump) except
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// Uses no power but can not transfer gases from a low pressure area to a high pressure area
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icon = 'icons/obj/atmospherics/passive_gate.dmi'
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icon_state = "intact_off"
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name = "Passive gate"
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desc = "A one-way air valve that does not require power"
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var/on = 0
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var/target_pressure = ONE_ATMOSPHERE
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update_icon()
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if(node1&&node2)
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icon_state = "intact_[on?("on"):("off")]"
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else
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if(node1)
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icon_state = "exposed_1_off"
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else if(node2)
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icon_state = "exposed_2_off"
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else
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icon_state = "exposed_3_off"
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on = 0
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return
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process()
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..()
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if(!on)
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return 0
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var/output_starting_pressure = air2.return_pressure()
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var/input_starting_pressure = air1.return_pressure()
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if(output_starting_pressure >= min(target_pressure,input_starting_pressure-10))
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//No need to pump gas if target is already reached or input pressure is too low
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//Need at least 10 KPa difference to overcome friction in the mechanism
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return 1
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//Calculate necessary moles to transfer using PV = nRT
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if((air1.total_moles() > 0) && (air1.temperature>0))
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var/pressure_delta = min(target_pressure - output_starting_pressure, (input_starting_pressure - output_starting_pressure)/2)
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//Can not have a pressure delta that would cause output_pressure > input_pressure
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var/transfer_moles = pressure_delta*air2.volume/(air1.temperature * R_IDEAL_GAS_EQUATION)
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//Actually transfer the gas
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var/datum/gas_mixture/removed = air1.remove(transfer_moles)
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air2.merge(removed)
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if(network1)
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network1.update = 1
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if(network2)
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network2.update = 1 |