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The Attic Bug Seen In Action

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#11 IRF

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Posted 11 June 2016 - 04:12 PM

a few years back i had a go at completing the pre-production version with all but one of the official pokes and left the Attic bug in place just to see if it could be done, it does seem possible but you have to 'cheat' a bit by using one of Matthew's unintended easter eggs

 

I'd suggest that Writetyper was very much an intended Easter Egg though - he can't have written it into the code by accident!!

 

I think Andy might be right though, that if you leave climbing the East Wall until last (that being the only route which requires you to pass through The Attic - if you use the shortcut from Esmeralda to the Ballroom), then you can complete the game without using Writetyper.


Edited by IRF, 11 June 2016 - 07:00 PM.


#12 Metalmickey

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Posted 12 June 2016 - 09:11 AM

Point taken!, speaking of the writetyper cheat .. i'm pretty sure that if used at the right time in the right place it would probably be possible to navigate to the hidden object in the first landing without the poke - if you were quick enough to change the room back again ... probably best done mid jump, not yet been successful in getting the one in the conservatory roof yet though, the firecell is just a bit too close


Edited by Metalmickey, 12 June 2016 - 09:12 AM.


#13 IRF

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Posted 12 June 2016 - 09:25 AM

If you teleport into the right-hand side of the adjacent wall, then you can collect the item at your leisure!

 

I think the Conservatory Roof one is impossible, even with a rapid teleport in-and-out, because the check for Fire cells occurs before the check that picks up items in the Main Loop of the code!

 

However, if you POKE an arrow into that room at the right height, it will pick up all four items for you!  (Because arrows are White, and any White Ink entity can collect an item!)



#14 Metalmickey

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Posted 12 June 2016 - 10:22 AM

...However, if you POKE an arrow into that room at the right height, it will pick up all four items for you!  (Because arrows are White, and any White Ink entity can collect an item!)

Oh i could have some fun with that, especially in the Ballroom West and The Off Licence!



#15 Spider

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Posted 12 June 2016 - 05:12 PM

I'd not tried moving into the wall, that would work I think but the problem is the object has no byte pattern so it may not be possible to collect it as its not 'seen' by the code unless you give it some 'form' as its by default blank.

 

Its here ( as if you did not know! :) )

 

first_landing_obj.png

 


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#16 IRF

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Posted 12 June 2016 - 05:25 PM

The lack of infilled pixels didn't stop Willy collecting it when it was relocated to The Hall though?



#17 Spider

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Posted 12 June 2016 - 06:21 PM

The lack of infilled pixels didn't stop Willy collecting it when it was relocated to The Hall though?

Its still invisible. :)

 

I don't (think?) its actually collected even with the 'auto collect' cheat. But you do not need all the items (otherwise it would not be possible!) :)


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#18 IRF

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Posted 12 June 2016 - 06:27 PM

I thought the point of moving it to The Hall was to make it reachable and therefore collectable!  (Even though it's still invisible!)

 

Here's another example - the (multiple) invisible items in The Nightmare Room, in JSW The Nightmare Edition.  They are all collectable!  As long as Willy (or something else with White Ink) moves to occupy the cell that they occupy, then they're sucked up!

 

EDIT: I've just had an idea - a slow, Inkless White Guardian could pass through an out-of-reach item towards the end of its traverse of its range, causing a seemingly uncollectable item to be 'auto-collected'.  (Said guardian would incidentally be harmless to Willy, and wouldn't even discolour his sprite if he passed through it, so the sudden disappearance of the item would be most mysterious!)

 

Incidentally, pixel collision isn't necessary for item collection - I've witnessed an item that only occupied the lower pixel-rows of its cell, being collected by an arrow that passed through the same cell but which didn't actually touch the item!  (In contrast, I've observed an arrow pass through a cell occupied by Willy's sprite without killing him - because he was on a ramp at the time, the arrow sailed over the top of his head and no pixel collision occurred!)


Edited by IRF, 12 June 2016 - 06:36 PM.


#19 Spider

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Posted 12 June 2016 - 06:38 PM

I think you could be right. An experiment is needed, moving the invisible object down to where it can be reached by simply walking over it (to be sure!)

 

79 'normal' objects but 83 present (2x Beach, 1x Swimming Pool, 1x Top Landing)


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#20 Spider

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Posted 12 June 2016 - 06:42 PM

There was also an invisible and impossible to reach item in First Landing. The Software Projects fix relocated the item to The Hall — although some fixes relocated the object to The Bathroom where it became visible as another tap item, by poking value 33, instead of 11.


I can't say I've seen that 'fix it by moving it to The Bathroom' before... :unsure:
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