Re: A85: Re: Re: Re: Re: Raycasting
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Re: A85: Re: Re: Re: Re: Raycasting
FIX does not change the number, it chanegs the way the number is displayed.
To change the number you need ipart (integer part of a number) or round.
DInes
----- Original Message -----
From: Steve Ranck <psufreak@mindless.com>
To: <assembly-85@lists.ticalc.org>
Sent: Friday, December 11, 1998 2:39 PM
Subject: Re: A85: Re: Re: Re: Re: Raycasting
>
>I got all the equations working and everything, and technically it could
>work, but I ran in to a big problem. Because of the limited math operations
>you can do on TI-85, I could not get the exact grid number, only an
>approximation. This approximation when rounded would be okay (it would be a
>decimal, you need a whole number for the grid coord.) but even when I set
it
>to fix 0 (no decimals) it would give me an error when I entered it into the
>matrix (where I stored the level data) because even it shows you 5, 5.3243
>is still stored in that variable. I got frustrated with this and stooped
>work on the project. If anybody can think of a way around this I'll put it
>in and give it to them.
>
>Steve Ranck
>psufreak@mindless.com
>
>-----Original Message-----
>From: Mike Koss <mikekoss@freewwweb.com>
>To: assembly-85@lists.ticalc.org <assembly-85@lists.ticalc.org>
>Date: Friday, December 11, 1998 10:55 AM
>Subject: Re: A85: Re: Re: Re: Re: Raycasting
>
>
>>
>>
>>I know this was an OLD message, but Ive been under a rock(programming and
>new
>>job aquisition) for the last few months
>>
>>I was wondering if you would send me the source for your TI-Basic
>ray-casting
>>engine.... Im kinda interested in building a simple wire-frame,
ray-caster.
>Then
>>work from their on how much I can push the system before fps drops below
>>usability.
>>
>>Steve Ranck wrote:
>>
>>> Cool. I made a partially working raycasting engine in TI-Basic this
>weekend.
>>> It for some reason isn't drawing vertical walls right, but it does draw
>>> horizontal walls correctly. It would kick @$$ in asm.
>>> Steve Ranck
>>> psufreak@mindless.com
>>>
>>> -----Original Message-----
>>> From: David Whittaker <tubadave@sonet.net>
>>> To: assembly-85@lists.ticalc.org <assembly-85@lists.ticalc.org>
>>> Date: Tuesday, September 15, 1998 7:26 PM
>>> Subject: A85: Re: Re: Re: Raycasting
>>>
>>> >
>>> >Actually, I was thinking about making any 3-dimensional driver. I had
>>> >originally thought I should use the old matrix multiplication method,
>>> >because that seems to be the most optimal way, but if I find enough
>other
>>> >methods that will only raise my grade on the project. In other words,
>>> >sure, I'd love to help as much as I can.
>>> >
>>> >Dave
>>> >
>>> >---------------------------------
>>> >"DoN't caLL Me CraZy. OvEr 75% oF my PeRSonAliTies arE SANe."
>>> >-my psychyatrist
>>> >
>>> >----------
>>> >> From: Steve Ranck <psufreak@mindless.com>
>>> >> To: assembly-85@lists.ticalc.org
>>> >> Subject: A85: Re: Re: Raycasting
>>> >> Date: Tuesday, September 15, 1998 12:56 PM
>>> >>
>>> >>
>>> >> Does that mean you're interested in creating a wire frame raycasting
>>> >engine
>>> >> for the 85? Anyway here's the url for anybody interested:
>>> >> http://www.ben2.ucla.edu/~permadi/raycast/raycidx.html
>>> >>
>>> >> If that link doesn't work, let me know, but it should. It is a very
>good
>>> >> site, and it discusses no implementation, all algorithms so it can be
>>> >> applied to anything.
>>> >> Steve
>>> >> psufreak@mindless.com
>>> >>
>>
>
>
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