TSO-SE Discussion Thread

Discussion in 'Other TSO related projects' started by Blayer98, Jul 29, 2014.

  1. Blayer98

    Blayer98 Active Member

    No final decisions just yet! We're still needing to do a lot of other content, so not yet.
    LetsRaceBwoi likes this.
  2. yoyo

    yoyo Active Member

    I tried looking for any screenshots of the Sim Pages and this is all i could find so far. first one if from the manual but the skills look like some kind of beta version.
    manual.PNG Wing.jpg skills_lockssimpage.jpg relationshipsystem_alexsimpage.gif
    JeremyT likes this.
  3. Blayer98

    Blayer98 Active Member

  4. AquilaSim

    AquilaSim Administrator Staff Member Moderator

    Blayer98 likes this.
  5. yoyo

    yoyo Active Member

    yup thats where i found it lol, but I had a hell of a time finding those pdfs again so I figured it would be easier than just saying "download the manual and look at page 39." :)
  6. Blayer98

    Blayer98 Active Member

    Okay, so I decided to give Pre-Alpha's map view and CAS a shot, since we haven't done GetCharBlobByID. (LoadAvatarByID)
    I found the request packet in log.dat, and it's bundled with other Requests, such as GetRoomateInfoByLotID and GetBookmarks.
    Below is the packet for GetCharBlobByID, and it's the request version. (We haven't ever made a GetCharBlobByID, only ones that crash the game :))
    00 82 00 00 00 4D 80 00 00 00 80 00 00 00 00 00 00 00 00 39 12 51 94 E5 21 3B F8 2D 4E 5B B7 3F AB 00 00 05 39 3A 43 3D 64 65 6C 69 46 69 4D 5C 73 6F 72 50 5C 6D 61 72 67 6C 69 46 20 28 20 73 65 29 36 38 78 6D 6F 43 5C 20 6E 6F 6D
    I will be labeling it and I'll post it here once it is. :p
  7. francot514

    francot514 Well-Known Member

    I like panel skills bars, but not colors, why you say is from beta?? beta before pre alpha???

    Good work so far..
  8. Blayer98

    Blayer98 Active Member

    Play Test had that look for the skills panel, and Charter Edition doesn't have it. (I'm not sure about Pre-Alpha since we need GetCharBlobByID.)
    Pre-Alpha was BEFORE Play Test, by the way :p
  9. Blayer98

    Blayer98 Active Member

    GOOD NEWS! We've finally got a packet that now works and that it can get us into the map view from CAS. The Free Will button works too, but the UI for the Free Will isn't there yet, and we've also got a packet that can now get us into the lot with WORKING objects! :) (We still can't get an Avatar in the lot though, which is annoying...)
    Keep in mind that the Avatar doesn't save because we'd need the AvatarDataServlet to update automatically, which doesn't work since we don't have a DB.
  10. Blayer98

    Blayer98 Active Member

    Here's a gif of the lot in action.
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  11. yoyo

    yoyo Active Member

    Waaah?! It's soo beautiful! always a pleasant surprise to see progress on this project. and lol, is that trash can floating?
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  12. Blayer98

    Blayer98 Active Member

    yeah, it's like that in the Charter Edition's NoNetwork mode too, the lot is simply an exact duplicate of defaulthouse.dat from Charter Edition.
    LetsRaceBwoi likes this.
  13. francot514

    francot514 Well-Known Member

    Very good work Fatbag and Blayer98
    LetsRaceBwoi and Blayer98 like this.
  14. Fatbag

    Fatbag Member

    Okay, it turns out that the lot terrain type is specified in the "String ID" field (as we're currently calling it on the wiki) in cTSONetMessageStandard. Here is a screenshot:


    The terrain types are:
    0: base
    1: grass
    2: sand
    3: rock
    4: snow
    5: water
    0 and 5 should not appear in normal lots.

    These terrain types cause the game to generate the following commands:
    0x9D: kCmdTerrainStyleBase
    0x9E: kCmdTerrainStyleGrass
    0x9F: kCmdTerrainStyleSand
    0xA0: kCmdTerrainStyleRock
    0xA1: kCmdTerrainStyleSnow
    0xA2: kCmdTerrainStyleWater
    In fact, there are two additional terrain commands which the server cannot communicate to the client. They are:
    0xA3: kCmdTerrainStyleLineRender1
    0xA4: kCmdTerrainStyleLineRender2
    The Launch US version of TSO in -NoNetwork Mode generates the terrain command 0x9F (kCmdTerrainStyleSand) at TSOClient_base+0x14406 (with the instruction "push 0x9f"). By modifying this instruction, you can change the lot to any terrain type including the LineRender types.

    Here are all of the terrain types in TSO (screenshots taken from Launch US -NoNetwork mode):

    With TSO-SE, click to enter the city. To get into the map view, send:

    Afterwards, to make the lot appear on the map, send:

    Then, click to enter the lot, and then send:
    Last edited: Jul 31, 2015
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  15. RHY3756547

    RHY3756547 FreeSO Developer Staff Member Moderator

    I love how they made a preset for water, though they probably could have done a little better than solid blue.
    LetsRaceBwoi and Blayer98 like this.
  16. Blayer98

    Blayer98 Active Member

    They probably had that in just in case there was a water tile which a lot could be created on.
  17. LetsRaceBwoi

    LetsRaceBwoi Well-Known Member

    Because physics.
    Cyber Toon likes this.
  18. Blayer98

    Blayer98 Active Member

    Okay, I've been talking with Fatbag, here's our conversation, it's about how the Avatar spawns, but most of it is about the NPC spawning :p

    We might also want to learn how visitors arrive on the lot in The Sims 1.

    Visitors arrive via the *Portal - Pedestrian debug object, did you forget? XD

    the same happens with TSO, but it's NPCs who use them now.

    "Debug object" isn't really the right word. It's more like internal object, etc.

    There IS one on the lot we specified, keep in mind.

    Yeah, -NoNetwork mode displays it, and online mode hides it.

    Here's the information about spawning an avatar, and how interactions and routing works and a picture showing the Gonzo Debug Window in Pre-Alpha, which shows that the Command had printed onto the window: "NewObjectCreated" which is probably related to kServerCreateObjectEvent, and kClientCreateObjectEvent in TSO N&I.
    Also appointment locations are defined as 218XXX (XXX being the coordinate of the location)
    the 218 never changes.
    So, we need to call Server or ClientCreateObjectEvent.

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  19. RHY3756547

    RHY3756547 FreeSO Developer Staff Member Moderator

    If you need any information about how the sims online uses its objects, or the VM in general I'd be happy to help! I'm really ecstatic about this - though I suspected the event system's existance (and modelled our own multiplayer over it) I never considered that it would be cracked so quickly. Very nice work.
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  20. Fatbag

    Fatbag Member

    I don't feel like typing up a long post, so, here are our notes:

    prealpha -> naitrial
    Member functions:
    cTSOSimulator::cTSOSimulator: TSOSimulatorClientD_base+0x1cce5 -> TSOSimulatorClientD_base+0x6c9a4
    cTSOSimulator::SetSpeed: TSOSimulatorClientD_base+0x1d722 -> TSOSimulatorClientD_base+0x6d387
    cTSOSimulator::AssembleAndSendChecksum: TSOSimulatorClientD_base+0x1de93 -> TSOSimulatorClientD_base+0x6dbbf
    cTSOSimulator::AssembleAndSendChecksync: TSOSimulatorClientD_base+0x1df41 -> TSOSimulatorClientD_base+0x6dc1c
    cTSOSimulator::ScheduleLocalEvent: TSOSimulatorClientD_base+0x1e10a -> ?
    cTSOSimulator::LocalPause: TSOSimulatorClientD_base+0x1e26b -> TSOSimulatorClientD_base+0x6de4c
    cTSOSimulator::LocalUnpause: TSOSimulatorClientD_base+0x1e35a -> TSOSimulatorClientD_base+0x6debb
    cTSOSimulator::ClientIdle: cTSOSimulatorClient_base+0x1ecfc -> TSOSimulatorClientD_base+0x6ec79
    cTSOSimulator::HandleEvent: TSOSimulatorClientD_base+0x1f192 -> ?
    Member variables:
    cTSOSimulator::sim_speed: +0x68 -> ?
    cTSOSimulator::tick_number: +0xcc -> 0xd4
    cTSOSimulator::is_paused: +0xf4 -> 0x100
    cTSOSimulator::simulate_until: +0xfc -> 0x108
    Do a regex search for "DWORD PTR \[.*\+0x108\]," in TSOSimulatorClientD.dll,
    and the result is:
    10067963:   89 83 08 01 00 00     mov  DWORD PTR [ebx+0x108],eax
    1006ca7b:   89 9e 08 01 00 00     mov  DWORD PTR [esi+0x108],ebx <- being set to 0
    1006f33a:   89 86 08 01 00 00     mov  DWORD PTR [esi+0x108],eax
    1009c07c:   89 8e 08 01 00 00     mov  DWORD PTR [esi+0x108],ecx
    That leaves us with 10067963, 1006f33a, and 1009c07c as potentially the code we
    want to reach to increment the simulate_until variable.
    Of these three, 1006f33a is perhaps the most interesting (at least in my
    opinion) because it appears to retrieve its value from an object that accepts
    IID=0x65297976 (kGZIID_cIGZMessage2Standard). The function starts at 0x1006f2ea
    and is called by this code:
    1006e62a:   ff 50 10     call  DWORD PTR [eax+0x10]
    1006e62d:   6a 01     push  0x1
    1006e62f:   2d 03 3d 7c 2c     sub  eax,0x2c7c3d03
    1006e634:   5b     pop  ebx
    1006e635:   0f 84 28 01 00 00     je  0x1006e763
    1006e63b:   83 e8 09     sub  eax,0x9
    1006e63e:   0f 84 b4 00 00 00     je  0x1006e6f8
    1006e644:   2d 86 fa dc 11     sub  eax,0x11dcfa86
    1006e649:   0f 84 90 00 00 00     je  0x1006e6df
    1006e64f:   83 e8 0c     sub  eax,0xc
    1006e652:   74 19     je  0x1006e66d
    1006e654:   2d 03 ec 15 2d     sub  eax,0x2d15ec03
    1006e659:   0f 85 b5 01 00 00     jne  0x1006e814
    1006e65f:   57     push  edi
    1006e660:   8d 4e dc     lea  ecx,[esi-0x24]
    1006e663:   e8 82 0c 00 00     call  0x1006f2ea
    0x2c7c3d03 = 0x2C7C3D03 -> ?
    0x2c7c3d03+0x9 = 0x2C7C3D0C -> ?
    0x2c7c3d03+0x9+0x11dcfa86 = 0x3E593792 -> ?
    0x2c7c3d03+0x9+0x11dcfa86+0xc = 0x3E59379E -> ?
    0x2c7c3d03+0x9+0x11dcfa86+0xc+0x2d15ec03 = 0x6B6F23A1 -> kServerTickConfirmationMsg (!!!!!)
    This is very interesting because the debugging string in naitrial
    "TicksPerServerConfirmation" (at TSOSimulatorClientD_base+0x6e311) tells us that
    a "server confirmation" provides a number of ticks to the client.
    By placing a breakpoint on the ClientIdle function, you can see that when the house is first loaded, both current_tick and simulate_until are set to 0.

    If you send a kServerTickConfirmationMsg cTSONetMessageStandard, it turns out that 0x1006e663 is reached, and subsequently, 0x1006f33a is reached with eax corresponding to the value of the "String ID" field (gosh, we need to rename that). Since there are 5 real world seconds per game minute and 25 SimAntics ticks per real world second, I set this value to 0xaf for 175 ticks or 7 real world seconds, and sure enough, the game time changed from 12:01 to 12:02.

    So kServerTickConfirmationMsg updates the value of simulate_until. But is this seriously all we need to do: send the packet several times per second and the simulation works? What about the server "confirming" that the client is in sync etc.? How does the client receive actions from other players? And what do we need to do to ensure that the simulation is smooth for the player?

    It seems that, to ensure that the client is still in sync with the server, the client will periodically call cTSOSimulator::AssembleAndSendChecksum and cTSOSimulator::AssembleAndSendChecksync, at least when the server asks the client to do so; but so far this hasn't happened yet.

    It seems that the client should receive player actions from another packet, and that the server should send these packets before sending the kServerTickConfirmationMsg to the client for the tick when those actions are scheduled to occur.

    It turns out that, if you set the simulate_until value to a really high value (many game hours in the future), to catch up to the current time, the game does not simulate as fast as it can, but instead, it gradually increases the speed of the simulation and then gradually decreases the speed when it begins approaching the current time.

    As for whether or not the game buffers the kServerTickConfirmationMsg packets it receives and only responds to them after a certain scheduled time in the future (e.g. an 0.5 second latency would protect against dropouts up to 0.5 seconds long), I'm not sure yet.

    Here is the packet:

    and a screenshot:
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