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Tunnel Logic

Written by: Grim

Thanks to: Hostile for his brillant ideas, his courage and advice. T3A staff and members for their support.

The purpose of this tutorial is to give a building object a tunnel network ability.

Be ware that the code isn't developped for BFME specificly, it comes from C&C Generals and it has some restrictions:

-Entering units will be instantly full healed.
-No filter for entering units, anything can enter the tunnel.
-Horde logic does not count, so when a horde goes in the tunnel, it will spread into individuals, and while exiting the tunnel, they will remain as individuals.

We will see one alternative solution for the horde problem with an example: The Tunnel Guide. But first:

1) Give a building the tunnel Behavior:

Go in your building object code, and add this:

              

Code

Behavior = TunnelContain ModuleTag_Tunnel ; TimeForFullHeal = 10000 ;(in milliseconds) ; does not seem to work, adding this or not, units are full healed as soon as they enter the container ObjectStatusOfContained = UNSELECTABLE ENCLOSED DamagePercentToUnits = 0% ; PassengerFilter = NONE +INFANTRY ;Does not work, anything can enter AllowAlliesInside = Yes AllowEnemiesInside = No AllowNeutralInside = No NumberOfExitPaths = 1 ShowPips = No End

Now any friendly unit can go in the building.

To set the number of units max can enter the tunnel, go into gamedata.ini and modify the line:

              

Code

MaxTunnelCapacity = <number of units max>

To make them able to go out, we have to add a evacuate button into the commandset of our building, and exitgarrison button to see what's in:

              

Code

CommandSet <YourBuilding>CommandSet 1 = Command_Sell 2 = Command_EvacuateGarrison ;click on this Button to make the units go out 3 = Command_ExitGarrison ;stop at this line if MaxTunnelCapacity = 1 4 = Command_ExitGarrison ;stop at this line if MaxTunnelCapacity = 2 5 = Command_ExitGarrison ;... 6 = Command_ExitGarrison ;... 7 = Command_ExitGarrison ;... 8 = Command_ExitGarrison ;... 9 = Command_ExitGarrison ;... 10 = Command_ExitGarrison ;... 11 = Command_ExitGarrison ;stop at this line if MaxTunnelCapacity = 9 12 = Command_ExitGarrison ;stop at this line if MaxTunnelCapacity = 10 End

If you have set the MaxTunnelCapacity high, you would probably like to hide the ExitGarrison buttons while empty.
To do so, go in commandbutton.ini, find Command_ExitGarrison and add HIDE_WHILE_DISABLED to the options like that:

              

Code

CommandButton Command_ExitGarrison Command = EXIT_CONTAINER Options = OK_FOR_MULTI_SELECT HIDE_WHILE_DISABLED TextLabel = CONTROLBAR:GarrisonExit ButtonImage = BRGoldenHall_Evacuate ButtonBorderType = SYSTEM DescriptLabel = CONTROLBAR:ToolTipStructureExit Radial = Yes InPalantir = Yes RequiresValidContainer = Yes End

Now your tunnel network is ready to work. If you build multiple buildings of that type over the map, you will be able to make a unit enter one and go out from another.

But remember, if a horde goes in, it will spread into individuals.>Here's an alternative solution i worked on: use a horde transport container object to carry your hordes through the tunnel network. As i was doing a dwarven faction, I made him a dwarf mine guide.


2) Alternative solution for horde problem - The Dwarf mine guide.

First, you have to build or use a mobile single unit. I built a dwarf named Dwarf mine guide. Then you have to give him the HordeTransportContain behavior, just add this into his object code:

              

Code

Behavior = HordeTransportContain ModuleTag_whatever ObjectStatusOfContained = UNSELECTABLE Slots = 2 ;can be more or less, set it as you want DamagePercentToUnits = 0% PassengerFilter = ANY +INFANTRY +CAVALRY ; set the filter how you want. This will allow any kind of traditionnal hordes to enter the unit AllowOwnPlayerInsideOverride = Yes AllowAlliesInside = No AllowEnemiesInside = No AllowNeutralInside = No ExitDelay = 0 NumberOfExitPaths = 2 ForceOrientationContainer = No ShowPips = Yes ;Yes: shows the little ticks of contained units. No: hides them EjectPassengersOnDeath = Yes KillPassengersOnDeath = No FadeFilter = ALL FadePassengerOnEnter = Yes ;Units will disappear when entering the container EnterFadeTime = 1000 FadePassengerOnExit = Yes ExitFadeTime = 1000 End

You can tune this how you want. This is one of the interests of the transition container.

Now, to allow hordes to exit the container/mine guide, we have to add a new button in commandbutton.ini:

              

Code

CommandButton Command_TransportEvacuateMineGuide ;You can name it differently Command = EVACUATE Options = OK_FOR_MULTI_SELECT HIDE_WHILE_DISABLED TextLabel = CONTROLBAR:TransportEvacuate ButtonImage = BRGoldenHall_Evacuate ButtonBorderType = SYSTEM DescriptLabel = CONTROLBAR:ToolTipTransportExitMumakil InPalantir = Yes End

Then add it to the container/mine guide's commandset:

              

Code

CommandSet MineGuideCommandSet 1 = Command_SpecialAbilityLightTorch 2 = Command_TransportEvacuateMineGuide ; <----here it is 3 = Command_GuardUnit 13 = Command_AttackMove 14 = Command_Stop 15 = Command_Guard End

That's all!
Now you have a character unit able to transport/guide your hordes through the tunnel. You just have to make your horde go into it/him, move the container/guide through the tunnel, and when out use the exit button to make the horde go out in one piece.

This is all for the tutorial. If you have questions or suggestions go to the main forum and ask. Keep in mind the tunnel behavior is not made for BFME so it's far from perfect, but it can still allow nice possibilities.