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Author Topic: Sand glitching  (Read 753 times)
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Fox
Fox McCloud, the Hacking Doctor
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« on: August 18, 2017, 01:00:51 PM »

This instance is not abusable as far as I'm aware... but I want to document it anyway.... in case anything similar could be researched elsewhere.

Result:


(Going to call these by layer 1-3, rather than 0-2 for right now.)

Tilemap EVENTS for layer 3: (Sand and impassible tiles) (As it is initially... as in... before the statue is moved... because if the statue is moved, at least one tile is changed. The one south of where the statue started.)




How it works:

As a PC, you usually start on layer 1. When you use Sand, a function in the Map Code may be called. (Listed in map's events list) that could switch you to layer 3.... Sand only works on tiles that are "Sand tiles" on layer 3, so if you leave the Sand tiles, you'll revert to layer 1.
In the picture, we are trying to go to the tile that is at ground level, and is not an impassable tile, but once we leave the sand tiles, we immediately go back to layer 1/exit Sand mode... Making it so the tile you would be on now would be an impassable tile. Event id 0xFF.... Which is especially unfortunate since not all collision relies on event id 0xFF... There are lots of places that just use the height table.

When you are in the center of an 0xFF tile, you can't really move in any direction... Unless you are close enough to the edge... (In which case you walk where you came from.) So this isn't exactly a game-breaking bug.


--
If it is what it looks like... going through warps on any layer... will result in being on layer 1 in the next room... Hmmm... No surprise if the npc data gets unloaded/reloaded between rooms?... But it is still an unfortunate to see this possibility of a glitch also go away.... when I think of out-of-bounds stuff... Because had it been possible, you could have also had a chance to go out-of-bounds in the next room, I'm thinking.... (Would have also been limited to Sand rooms that switch layers, in that case... or anything that might do the same.)
« Last Edit: August 18, 2017, 03:12:52 PM by Fox » Logged

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« Reply #1 on: August 22, 2017, 05:37:29 AM »

Sounds like being able to wedge yourself into the wall? We do something like this currently where we wedge ourselves into the wall by forcing sand to end, and then we are in range of the move statue and can cast move on it. Saves doing about half of Ankhol Ruins.
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Fox
Fox McCloud, the Hacking Doctor
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« Reply #2 on: August 22, 2017, 06:10:59 PM »

https://www.twitch.tv/videos/27756417
^This?

Yeah, that's pretty clever!
I'm going to guess I know why.... You're technically still on the non-solid tile when you get out of sand. (Normally, you can't get that close to the edge of it.)
My "discovery" was more or less about tilemap errors... but yours mostly looks like a functionality error... :) Both of which fit this topic.

I feel like the ability to go to higher ground in that example at the end... would be a combination of the tiles used after the statue moves, and the fact the tile has two heights. (Diagonal tile.)

There's another place you can go into the wall b/c of tilemap error/s... but it isn't useful either.

--
I am not sure if objects being moved around from Retreat Glitching can be moved (with psynergy) where they need to be to get around in any case.... but I doubt it'd be useful anyway.
« Last Edit: August 22, 2017, 06:53:24 PM by Fox » Logged

Golden Sun Docs: Broken Seal - The Lost Age - Dark Dawn | Mario Sports Docs: Mario Golf & Mario Tennis | Misc. Docs
Refer to Yoshi's Lighthouse for any M&L hacking needs...

Remember kids! Before you go on that interview, remember to wash your hands in teawater! *Coughs on hand* (Excuse me, I just coughed up a little teawater, so they're still clean!) You wouldn't want that hiring manager to be unimpressed.

May the force be with you!
Shoo! Why does it smell in here?
Maybe that's the wrong kind of force. *smirk*
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« Reply #3 on: August 23, 2017, 03:41:45 AM »

Yup! Exactly that!
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October 30, 2018, 09:45:58 PM
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Infitek: Hey everyone
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Salanewt: Updated it to provide more info that I forgot to mention.
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Salanewt: I'm still trying to iron out IQ 2 but I'm pretty sure it's entirely random targeting.
October 13, 2018, 03:16:29 AM
Salanewt: Oh yeah, I posted some more info about enemy IQ.
October 12, 2018, 09:51:27 PM
FoxThe HTML5 project is too small to count
October 12, 2018, 06:19:48 AM
Luna_blade: there is jjppof's html5 project...
October 12, 2018, 06:19:17 AM
Luna_blade: Though Momo rings a bell it seems I came here after you left
October 11, 2018, 12:49:41 AM
Fox: (If that makes sense.)
October 11, 2018, 12:48:33 AM
Fox: Yeah, I guess so.  More just saying that's a good place to get answers to GS related questions at the moment.
October 11, 2018, 12:42:28 AM
Crystal Sonata: I did before, but I guess I could try it again
October 11, 2018, 12:41:32 AM
Fox: Not much at the moment. This forum seems pretty quiet. Perhaps you'd be interested in joining the Discord for GSHC that seems to have more activity?
October 10, 2018, 11:16:53 PM
Crystal Sonata: Any projects going on? I need a distraction from the daily grind and I'm interested in hacking GS again.
October 10, 2018, 10:02:53 PM
Fox: Thanks, and good to see you too!
October 10, 2018, 10:02:10 PM
Fox: A few people I'm sure... Most likely the regulars of the past. Such as Atrius, Charon, Role, Salanewt....
October 10, 2018, 03:11:17 AM
Crystal Sonata: I find myself wondering who still remembers me here. Obvs you do (Good to see ya Tea)
October 10, 2018, 12:46:11 AM
Fox: On second thought, it might be because you haven't posted much as Crystal Sonata.
October 10, 2018, 12:41:12 AM
Fox: And your intro isn't that bad. - I imagine most people would say the same about theirs?
October 10, 2018, 12:39:39 AM
Fox: :O - You've been gone so long, I think I forgot you were Momo.  Interesting.

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