So I've been trying to develop a script that dynamically changes the walk speed depending on your location. I determine this location by the SkyMode, which can distinguish if the sky = interior, world, or "skydome" (which assume are town worldspaces). The speed is changed by adjusting the global speed multiplier only while you are walking. I'm totally new to any level of scripting outside your basic game script and the Wiki isn't much help so I'm basically doing this blind.

Would anyone who knows anything about coding or Papyrus be able to check the following script and see if the game can actually use it to do what I want to do? I'm not sure if I understand everything fully.

Scriptname DynamicWalkSpeed extends ObjectReference;every time cell loads, script activatesEvent OnCellLoad();default stateauto state Default  Game.GetPlayer().ModActorValue("SpeedMult", 1)   if Game.GetPlayer().IsRunning()	GotoState("Run")   elseif Game.GetPlayer().IsSprinting()	GotoState("Sprint")   else	GotoState("Walk")   endifendState;special state that activates when player IsRunning from the Default statestate Run  Game.GetPlayer().ModActorValue("SpeedMult", 1)  GotoState("Default")endState;special state that activates when player IsSprinting from the Default statestate Sprint  Game.GetPlayer().ModActorValue("SpeedMult", 1)  GotoState("Default")endState;special state that activates when player is walking. Then, it checks what the skymode is, and changes SpeedMult depending on that mode. If player runs or sprints while in the walk state, it reverts back to the default state.state Walk  if Weather.GetSkyMode() == 1   Game.GetPlayer().ModActorValue("SpeedMult", 1.75)  elseif Weather.GetSkyMode() == 2   Game.GetPlayer().ModActorValue("SpeedMult", 2)  elseif Weather.GetSkyMode() == 3   Game.GetPlayer().ModActorValue("SpeedMult", 2.5)  endif  if Game.GetPlayer().IsRunning()   GotoState("Default")  elseif Game.GetPlayer().IsSprinting()   GotoState("Default")  endifendStateGotoState("Default")endEvent

There's also an issue of how I get the game to actually use this script. So far, the Wiki appears to only cover how to attatch scripts to objects. What if I want a script to happen all the time? What do I do to get the script to "start" once I'm in game?

Allright so I tried attaching the script to the "Player" actor in in the Actor List, and when I saved the script it obviously didn't work. Here's the errors:

Starting 1 compile threads for 1 files...Compiling "DynamicWalkSpeed1"...f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(6,1): no viable alternative at input 'auto'f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(7,2): no viable alternative at input 'Game'f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(7,6): mismatched input '.' expecting LPARENf:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(0,0): error while attempting to read script DynamicWalkSpeed1: Object reference not set to an instance of an object.No output generated for DynamicWalkSpeed1, compilation failed.Batch compile of 1 files finished. 0 succeeded, 1 failed.Failed on DynamicWalkSpeed1

Any insights? I kind of knew it wouldn't work but I want to know why.

Try attaching it to a quest or something? Or just some random reference. That obviously doesn't work because you attached it to the player base object, not a reference. Or you could make an invisible activator that follows the player...

Where a script is attached has nothing to do with errors seen at compilation - the compiler doesn't look inside any data files.

For the first error, "auto" should go at the end of the line. See what shows up if you fix that.

Cipscis

Actually according to http://www.creationkit.com/States_(Papyrus) for states, auto is declared first. I'll try that still though.

EDIT: Here's what it spits out if I do that anyways though:

Starting 1 compile threads for 1 files...Compiling "DynamicWalkSpeed1"...f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(6,1): no viable alternative at input 'state'f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(6,15): required (...)+ loop did not match anything at input 'auto'f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(19,2): no viable alternative at input 'Game'f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(19,6): mismatched input '.' expecting LPARENf:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(0,0): error while attempting to read script DynamicWalkSpeed1: Object reference not set to an instance of an object.No output generated for DynamicWalkSpeed1, compilation failed.Batch compile of 1 files finished. 0 succeeded, 1 failed.Failed on DynamicWalkSpeed1

Oops, I guess my memory misfired. Thanks for correcting me on that one.

Cipscis

EDIT:

Ah, your states have to surround your events, not the other way around.

Cipscis

Oh I see!

Is it possible to just run without events entirely? I.E. I assume the auto-state means that as soon as the script is loaded, it runs whatever is under that default state.

Round 2:

Starting 1 compile threads for 1 files...Compiling "DynamicWalkSpeed1"...f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(5,2): no viable alternative at input 'Game'f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(5,6): mismatched input '.' expecting LPARENf:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(0,0): error while attempting to read script DynamicWalkSpeed1: Object reference not set to an instance of an object.No output generated for DynamicWalkSpeed1, compilation failed.Batch compile of 1 files finished. 0 succeeded, 1 failed.Failed on DynamicWalkSpeed1

That's with the Event's removed. I figured I didn't really need them, though if it's needed to start the script I could always just add

Event OnCellLoad()    GotoState("Default")endEvent

To the beginning. I think...

You'll still need events - only declarative code is allowed outside events.

Events are basically the same as functions, except native events are called by the game in response to certain... well, events. Because of this, they're your entry points for your code.

Cipscis

Allright I've revised it with some new events I just learned about:

Scriptname DynamicWalkSpeed1 extends ObjectReferenceEvent onInit()	Game.GetPlayer().ModActorValue("SpeedMult", 1)	registerForUpdate(0.1)	gotoState("Default")endEvent;default statestate Default  Event OnUpdate()   if Game.GetPlayer().IsRunning()	Game.GetPlayer().ModActorValue("SpeedMult", 1)   elseif Game.GetPlayer().IsSprinting()	Game.GetPlayer().ModActorValue("SpeedMult", 1)   else	GotoState("Walk")   endif   RegisterForSingleUpdate(0.1)  endEventendState;special state that activates when player is walking. Then, it checks what the skymode is, and changes SpeedMult depending on that mode. If player runs or sprints while in the walk state, it reverts back to the default state.state Walk  RegisterForSingleUpdate(0.1)  if Weather.GetSkyMode() == 1   Game.GetPlayer().ModActorValue("SpeedMult", 1.75)  elseif Weather.GetSkyMode() == 2   Game.GetPlayer().ModActorValue("SpeedMult", 2)  elseif Weather.GetSkyMode() == 3   Game.GetPlayer().ModActorValue("SpeedMult", 2.5)  endif  if Game.GetPlayer().IsRunning()   GotoState("Default")  elseif Game.GetPlayer().IsSprinting()   GotoState("Default")  endifendState

Current error list when compiling:

Starting 1 compile threads for 1 files...Compiling "DynamicWalkSpeed1"...f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(25,2): no viable alternative at input 'RegisterForSingleUpdate'f:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(25,26): extraneous input '0.1' expecting RPARENf:\program files (x86)\steam\steamapps\common\skyrim\Data\Scripts\Source\temp\DynamicWalkSpeed1.psc(38,1): mismatched input 'endState' expecting ENDFUNCTIONNo output generated for DynamicWalkSpeed1, compilation failed.Batch compile of 1 files finished. 0 succeeded, 1 failed.Failed on DynamicWalkSpeed1

It feels like I'm getting closer

You need to wrap the code in your "Walk" state in an event as well. Maybe http://www.creationkit.com/OnBeginState?

Cipscis

Wow, had no idea that even existed. Thanks, I'll try that out.

If I'm currently operating in the "walk" state, does everything going on in the "Default" state pause? For example, do my update intervals stop firing or are they going to go on all the time, reguardless if I'm in the Walk state of the script or not?

I'm just trying to make it so this doesn't end up flooding the system with an endless stream of commands, causing Papyrus to run slow or crash in-game.

EDIT: Welp it compiled successfully, yay Time to see if it works. I'm expecting it not to but I'll figure out why later


Aaaaand didn't work I probably need to actually attach it to an invisible quest or something, instead of just attaching it to the player actor in the actor list.

Yes! Got it to (mostly) work. Here's what the final code looks like:

Scriptname DynamicWalkSpeed1 extends Quest;Booting the script with onInitEvent onInit()Game.GetPlayer().ForceActorValue("SpeedMult", 1)registerForUpdate(1)endEventEvent OnUpdate()if Game.GetPlayer().IsRunning()  Game.GetPlayer().ForceActorValue("SpeedMult", 100)elseif Game.GetPlayer().IsSprinting()  Game.GetPlayer().ForceActorValue("SpeedMult", 100)elseif Weather.GetSkyMode() == 1  Game.GetPlayer().ForceActorValue("SpeedMult", 175)elseif Weather.GetSkyMode() == 2  Game.GetPlayer().ForceActorValue("SpeedMult", 175)elseif Weather.GetSkyMode() == 3  Game.GetPlayer().ForceActorValue("SpeedMult", 175)endifendEvent

Ended up cutting out a lot of the [censored] when I realized I could just endlessly stack elseif's to get the same effect I was trying to achieve with states. Also had the side effect of working right from the get-go instead of confusing the update timer.

I attached the script to the player via a quest, which was just set to "Start with game" - all you need to get it to work really.

Now there is one major problem that I don't know how to solve - first of all, SpeedMult is a value ONLY checked by the game when you switch from one "movement state" to another. AKA when you switch from run to sprint, or from run to sneak, etc. Which means, my speedmultipliers are succesfully changing at the right moments, but you will never notice anything changed until you start sprinting or sneaking. So it'll do the walking speed multiplier of 200 (100 default). But, if you decide to run, it'll correctly set it back to 100, but you will still be "moving" at 200 until you start sprinting or sneaking.

Is there a way to FORCE the game to "check" what the multiplier is so it changes your speed the moment it gets changed? I thought ForceAV would do this, but it apparently doesn't. As far as I know it's impossible to force an actor to sneak too (which would force the game to check the multipliers), though maybe not.

Okay so I redid my whole method above, to use spells instead of tyring to do it via the commands. It seems to work much better in implementation

Scriptname DynamicWalkSpeed1 extends QuestSPELL Property Speed175  AutoSPELL Property Speed230  Auto;Booting the script with onInitEvent onInit()Game.GetPlayer().RemoveSpell(Speed230)Game.GetPlayer().RemoveSpell(Speed175)registerForUpdate(0.5)endEventEvent OnUpdate()if Game.GetPlayer().IsRunning()  Game.GetPlayer().RemoveSpell(Speed230)  Game.GetPlayer().RemoveSpell(Speed175)  elseif Game.GetPlayer().IsSprinting()  Game.GetPlayer().RemoveSpell(Speed230)  Game.GetPlayer().RemoveSpell(Speed175)  elseif Weather.GetSkyMode() == 1  Game.GetPlayer().RemoveSpell(Speed230)  Game.GetPlayer().AddSpell(Speed175, true)	elseif Weather.GetSkyMode() == 2  Game.GetPlayer().RemoveSpell(Speed175)  Game.GetPlayer().AddSpell(Speed230, true)  elseif Weather.GetSkyMode() == 3  Game.GetPlayer().RemoveSpell(Speed175)  Game.GetPlayer().AddSpell(Speed230, true)  endifendEvent

HOWEVER I do have one big issue - for some reason, my spell effects show up properly, but they don't work. The speed adjustment simply doesn't happen, even though it registers on my magic effects list that the correct speed-adjustment spell is in effect. I've got it set up using the Frostbite spell as a template, except switched it to Constant Effect and Self vs. being hit and having the effect last for X number of seconds.

I've even copied the Wisp's speed increase ability BY THE LETTER when it's magic is above a certain point EXACTLY, and it still doesn't work. I'm starting to wonder if the SpeedMult spell effect was made to only work against non-player actors, and is hard coded to not work with players. Because everything is set up exactly as it should be, and it simply doesn't work (the spell's effect). I'm a complete roadblock here. If I can somehow get the spell to actually work, then this mod is done and releaseable. But it just doesn't!!!

Any help??

EDIT: Finally got it! I never did get around my above issue, but I learned the game checks what your speedmult is whenever something is added to your inventory. So, when I just have it so my script adds then immediately removes a random misc item to the inventory silently (so there is no noise or message), the game will check my speed and then immediatly apply the correct speed.

You can add another effect to your spell that changes inventory weight AV by 0.01. That's what I did for slow effects in the hypothermia mod and it worked really well.