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shadowlord13
101 lines
2.4 KiB
Plaintext
101 lines
2.4 KiB
Plaintext
/**
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* cell_charger -- Allows the charging of power cell (as used in APCs).
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*
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* Uses an overlay to display the current charge level of the inserted cell
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*
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*/
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obj/machinery/cell_charger
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name = "cell charger"
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desc = "A charging unit for power cells."
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icon = 'power.dmi'
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icon_state = "ccharger0"
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anchored = 1
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var
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obj/item/weapon/cell/charging = null // the cell inserted for charging (or null if none)
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chargelevel = -1 // the (cached) charge indicator level (0-4)
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// set -1 to force the indicator to be updated
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// insert a cell into the charger, unless there is already one inside
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attackby(obj/item/weapon/W, mob/user)
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if(stat & BROKEN) return
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if(istype(W, /obj/item/weapon/cell))
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if(charging)
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user.client_mob() << "There is already a cell in the charger."
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return
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else
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user.drop_item()
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W.loc = src
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charging = W
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user.client_mob() << "You insert the cell into the charger."
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chargelevel = -1
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updateicon()
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// updates the icon_state and overlays to reflect a whether a cell is inserted and the charge state
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proc/updateicon()
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icon_state = "ccharger[charging ? 1 : 0]"
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if(charging && !(stat & (BROKEN|NOPOWER)) )
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var/newlevel = round( charging.percent() * 4.0 / 99 )
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if(chargelevel != newlevel) // displayed charge level is cached, so as to only update the overlay when needed
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overlays = null
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overlays += image('power.dmi', "ccharger-o[newlevel]")
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chargelevel = newlevel
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else
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overlays = null
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// removes the cell from the charger (if a cell is inserted)
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attack_hand(mob/user)
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add_fingerprint(user)
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if(stat & BROKEN) return
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if(charging)
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charging.loc = usr
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charging.layer = 20
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if (user.hand )
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user.l_hand = charging
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else
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user.r_hand = charging
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charging.add_fingerprint(user)
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charging.updateicon()
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src.charging = null
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user.client_mob() << "You remove the cell from the charger."
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chargelevel = -1
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updateicon()
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// every cycle, increase the charge level of cell if inserted
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process()
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if(!charging || (stat & (BROKEN|NOPOWER)) )
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return
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var/newch = charging.charge + 5
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newch = min(newch, charging.maxcharge) // limit to maximum charge capacity of the cell
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use_power((newch - charging.charge) / CELLRATE)
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charging.charge = newch
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updateicon()
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