[Ohrrpgce] SVN: teeemcee/12280 Two changes to battle cursor movement

[Ralph Versteegen]

Unfortunately I found another formation that has unselectable targets for
both the angle<45 and angle<=45 variants. And it shows a fundamental
problem: if two targets are equidistant from the current one, which should
you pick? If you imagine a whole lot of enemies arranged in a regular grid
rotated 45 degrees, so each enemy has four diagonal neighbours at equal
distance, then either:
-arrow keys move to another target directly up/down/left/right, so the
diagonal neighbours are unreachable  (like the angle<45 variant)
or
-arrow keys move arbitrarily to one of the two nearest (diagonal)
neighbours, and you'll have little control over where the cursor goes,
again with many unselectable targets (like the angle<=45 variant)

On Fri, 7 May 2021 at 23:06, James Paige <Bob at hamsterrepublic.com> wrote:

> Nice! This variant does sound like a big improvement!
>
> On Fri., May 7, 2021, 1:00 a.m. , <subversion at hamsterrepublic.com> wrote:
>
>> teeemcee
>> 2021-05-06 22:00:03 -0700 (Thu, 06 May 2021)
>> 625
>> Two changes to battle cursor movement
>>
>> If you put four targets in a diamond, 45 degrees to each other, a 5th one
>> in the
>> center could be untargetable! (Example in test.rpg). To fix this, switch
>> to the
>> fallback cursor movement behaviour when angle >= 45 degrees instead of >
>> 45.
>>
>> Secondly, change the fallback behaviour from "pick the target with the
>> minimum
>> angle" to "pick the nearest target (by L1 norm)". This reduces the
>> tendency to
>> skip over targets that are in a roughly straight line when pressing arrows
>> mostly perpendicular to the line. However, skipping will still happen
>> when the
>> line is close to a 45 degree angle.
>> ---
>> U   wip/bmodsubs.bas
>> U   wip/testgame/test.rpg
>> U   wip/whatsnew.txt
>>
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