[ scummvm-Bugs-1031807 ] Light bridge puzzle bug

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Tue Sep 21 12:52:25 CEST 2004


Bugs item #1031807, was opened at 2004-09-21 12:52
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Category: Script bugs
Group: The Dig
Status: Open
Resolution: None
Priority: 5
Submitted By: tobybear (tobybear)
Assigned to: Nobody/Anonymous (nobody)
Summary: Light bridge puzzle bug

Initial Comment:
Game: The Dig, English CD version
Tested with: ScummVM 0.6.1b + CVS Sep 20
Platform: AMD 2000+ running Windows XP

My first bug report, hope I did everything right. If not, please tell me.

The problem I have occurs in room 56 ("sparkle"), see attached 
screenshot.

Some useful information beforehand:
In "The Dig", you have to activate a light bridge on each of the islands 
(spires). This is done by turning a "lens", then activating a "strange 
device" by clicking and holding down a "switch". If the light bridge 
does not activate, you have to rotate the lense a bit and repeat it. 
There is however one light bridge (the one on the "tomb spire") that is 
broken. When trying to activate it, you will get a message saying 
something like "the warranty on this bridge has run out" or similar. 
Later in the game you will get something to pry open a panel below 
the "strange device". When you then look at it, you have to solve a 
puzzle (guiding a light beam with prisms) to repair the device. After 
this, you can simply activate the light bridge like all the others. At 
least, this is how the original DOS version of "The Dig" worked. In 
ScummVM I encountered some strange behaviour:

1. Using ScummVM 0.6.1b:
Clicking on the lens the first time I enter the room, I can move it 
several times. Then clicking on the device and pushing the switch 
gives the correct "warranty has run out" message. If I then try to 
move the lens again, the cursor disappears and I can't do anything 
anymore. I don't think the game has crashed or freezed, it just seems 
a script did not terminate correctly. I encountered this at some more 
points while playing the game (disappearing cursor), but by 
repeatedly clicking with the mouse, it did always return. There are 2 
save games attached, the first one (slot 79) is right before the bug: 
click on the "strange device", click and hold the switch, wait for 
message, click on "exit", click on "lens" -> cursor disappears on my 
PC (I could still save, so slot 80 is after this has happened). This was 
not really critical for me, because later in the game you receive a 
crowbar or something similar (I can't remember how they named it) 
that you can use to pry open the panel, solve the puzzle, and *then* 
everything works again (turning the lense, activating the device). All 
other light bridges in the game have no problem rotating the lense
with ScummVM!

2. I tried several CVS versions from August and September, and they
showed a different behaviour:
You can turn the lens and activate the device, but this time, it will 
always activate the light bridge, no matter if the panel has been 
opened or the puzzle has been solved! So the player will never see 
the beam puzzle or know what the panel is for. Seems like some sort 
of script error to me. You can try this again with the attached 
savegame: open slot 79 in any recent CVS version, click on device, 
click on switch, move lens, repeat until bridge activates - which it 
should *not* at this point in the game!

If I should provide any additional information, please tell me.

Regards,

Toby




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