Re: Re: A85: LaserSquad-Z

To: assembly-85@lists.ticalc.org
Subject: Re: Re: A85: LaserSquad-Z
From: Johannes <porkkanamies@yahoo.com>
Date: Fri, 21 May 1999 00:47:27 -0700 (PDT)
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-85@lists.ticalc.org
Reply-To: assembly-85@lists.ticalc.org

Hello...

--- John Hortenstine <jmh@zdnetmail.com> wrote:
> 
> How were you going to use the three bits in more
> detail? Then maybe I can think about answering your
> question.

Well here's a sample map:

.............
........T....
...xxx.......
.....x.......
.....xxxxxx..
.S...........
.............
S-start
T-target
x-any NOT walkable tile

well, first I scan through the first 8 tiles
surrounding 'S'. If all of their tile#number is <
10(or something) the I put first of those 3 bits on...
So, When I'm checking those three bits I probably mask
the rest away and rotate so that I'll get numbers from
0-7.

.............
........T....
...xxx.......
.....x.......
111..xxxxxx..
1S1..........
111..........
#numbers are the three bits...

and then I just continue checking each tile(on the
route) and give them values from 0-7. Where 0 means
it's not walkable(or it's not checked yet).So a longer
path would look something like this

.....666712345671.....
....5556712345671T....
..444456712300071.....
.33334567123..x.......
22223456712...xxxxxx..
11123456712...........
1S12345671............

actually every '.' and 'x'-tile would have the "3-bit"
value of 0.

Hmm, did that make any sense? 

/Johannes

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