komachi
Level: Master Delver
Rank Points: 158
Registered: 07-30-2012
IP: Logged

File: It dont move.drh (1.1 KB)
Downloaded 47 times.
License: Public Domain

I have a script which makes a monster unkillable, it set another appearance to the monster when you kill him and then, he move to the player. The code is:

    Set var "_MyHP" = 90
  Set var "_MyATK" = 1
  Behavior Face Target
  Imperative Unkillable
  Wait for defeat 
  Wait 1
  Imperative Killable
  Set appearance gel baby
  Set var "_MyHP" = 100
  Set var "_MyATK" = 10
  Move to Player 0,0

If you exit the room, re-enter with the gel baby and you use undo, the gel baby won't move for the rest of the room until you re-enter again.
Here is a hold with a custom pirate that when you kill him it turns into a gel baby (with other stats).

I use a gel baby as example, it happens the same with any monster.
I'm using the last build (1.2.3.98).

Doom
Level: Smitemaster

Rank Points: 3226
Registered: 07-05-2004
IP: Logged

Found about this after running into it in the recently released hold "Great place". I've tested this more and narrowed down the cause to "Set appearance" command inside a custom character's default script (same script on a regular character works fine).

Here's a simplified example of the same thing:
Create a new custom character "Moving roach" and give it the following default script, then follow komachi's directions.

Set appearance Roach
Move to Player 0,0

I suspect that this'll cause score verification issues because it's easy to trigger and lets you skip some enemies. We could probably try patching the hold to work around the bug (remove the "Set appearance" command from Temple guardians and maybe replace it with a MyColor change or something that doesn't break the universe), since I doubt there will be game patches anytime soon.

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[Last edited by Doom at 04-16-2018 01:34 PM]

komachi
Level: Master Delver
Rank Points: 158
Registered: 07-30-2012
IP: Logged

To be honest, I totally forgot about this bug. I can upload again the hold fixing this if it's needed.

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[Last edited by komachi at 04-22-2018 07:46 PM]

mrimer
Level: Legendary Smitemaster

Rank Points: 5056
Registered: 02-04-2003
IP: Logged

Just noticed this topic. Is there an outstanding issue that still exists in the latest 1.2.8 dev build?

If so, would someone please clarify what's the experienced issue and what the expected behavior should be? Thanks!

____________________________
Gandalf? Yes... That's what they used to call me.
Gandalf the Grey. That was my name.
I am Gandalf the White.
And I come back to you now at the turn of the tide.

Doom
Level: Smitemaster

Rank Points: 3226
Registered: 07-05-2004
IP: Logged

File: Movement Bug Test.drh (970 bytes)
Downloaded 43 times.
License: Public Domain

Yes, this bug still exists in the latest dev build.

Komachi's example contains some irrelevant details, here's a much simpler test hold.

Reproduction steps:

- Start a new game
- Enter 1N
- Walk a couple of steps and undo. The roach's movement is reverted. This is the expected behavior.
- Leave 1N
- Enter 1N again
- Walk a couple of steps and undo. The roach teleports to its starting location and stops moving. This is the broken behavior.

As mentioned in my older post, this happens only if the command "Set appearance" is used inside a custom character's default script.

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[Last edited by Doom at 11-10-2020 08:48 PM]

Doom
Level: Smitemaster

Rank Points: 3226
Registered: 07-05-2004
IP: Logged

A little bump, since this kinda got forgotten after Mike started looking into it, and a lot of other RPG things have got fixed recently.

I've checked that this is still happening on all the latest builds (both stable and beta).