Comments on: Play Kings Quest, Space Quest, and More… Using Canvas Tag

By: Jeria

Jeria — Fri, 09 Oct 2009 08:35:40 +0000

@Brad Nueberg: So why don’t you update the headline then? It is misleading for people that don’t read the comments.

By: jdalton

jdalton — Fri, 09 Oct 2009 05:01:28 +0000

I understand that goto and labels aren’t exactly the same but I bet you could have used them for some of the cases, or found better ways to handle it (like breaking things up into smaller functions and calling them).

By: jdalton

jdalton — Fri, 09 Oct 2009 04:57:13 +0000

All that work for GOTO and you could have used “Label Statements”:
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http://bclary.com/2004/11/07/#a-12.12
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https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Loop_Statements/label_Statement

By: Brad Neuberg

Brad Neuberg — Thu, 08 Oct 2009 20:30:54 +0000

Aha, that’s crazy! Didn’t realize it’s just a bunch of GIFs. I guess I just assumed that was the only way to do it.

By: Darkimmortal

Darkimmortal — Thu, 08 Oct 2009 16:57:06 +0000

Silly HTML stripper

By: Darkimmortal

Darkimmortal — Thu, 08 Oct 2009 16:56:21 +0000

ahahahahahha

Also I tried to say HURRRRRRRRRRRRRRRRRR but it crashed :(

By: Jeria

Jeria — Thu, 08 Oct 2009 16:39:07 +0000

No canvas tag according to the DOM Inspector, just a bunch of PNGs

By: sjoerdvisscher

sjoerdvisscher — Thu, 08 Oct 2009 15:54:39 +0000

Canvas tag? Where did you get that from? It’s all just a bunch of GIFs. It works in IE6! And by the way, I only helped with the GOTO issue, the rest is all Martin!

@aadsm: yes, that is basically the same solution. But in a switch statement it looks more like real line numbers. :-)

By: aadsm

aadsm — Thu, 08 Oct 2009 12:00:57 +0000

“I was able to convert the logic to javascript, but there was one big problem: Sierra’s code used GOTO statements, and those could jump anywhere in the code, even inside a nested “if”-statement. It seemed unsolvable in javascript.”

I solved that in my 2005 Web AGI Engine (http://web.ist.utl.pt/antonio.afonso/agi/) by separating the logic into different functions, whenever there was a new label I forked it into a new function and returned the number of that function.

Here’s the LSL logic compiled into JS: http://web.ist.utl.pt/antonio.afonso/agi/cache/
My compiler is written in PHP: http://web.ist.utl.pt/antonio.afonso/agi/logic.phps