Re: [Enigma-devel] Yin-Yang Switch Stone

[Andreas Lochmann]

Hi Ivan,

over half a year has passed since your proposal for a yinyang-stone.
Some revisions ago, Ronald added this object to the trunk (as you might
have seen), and Raoul and I already wrote two interesting levels to the
theme - you were right, st_yinyang was a really worthwhile addition :-)

We hope you like the implementation and artwork of the new stone,
and thank you again for this great idea! Oh, and greets to Ray
as well!

Best regards,
Andreas


Ivan Wick schrieb:
> Developers,I am working with level designer Ray Wick who had an idea for a
> "Yin-Yang Switch Stone," i.e. a stone which when hit switches player control
> between the black ball and the white ball in the same way as it-yinyang.
>  However, in the case of a yin-yang switch stone, the switch must be
> activated where it is on the map rather than allowing the player to carry
> it-yinyang in the inventory.
>
> This idea could make for some new and interesting Enigma levels so I
> implemented it.  I couldn't find a way to do it purely by Lua-scripting
> level objects so I made some source code changes.
>
> My first attempt was simply to add support in the YinYang Item's class
> (items.cc) for a "swap" message, so that it-yinyang could be activated in
> the level's Lua script by other level objects like a floor switch or switch
> stone.
>
> My second attempt was to create a new subclass of the switch stone which
> called "player::SwapPlayers()" on actor_hit, in addition to otherwise being
> a fully functional switch stone.  I also put together artwork for this stone
> and added it to the Lua model scripts where needed.
>
> Originally I was working against the released source code for version 1.01.
>  I was able to replicate the behavior from my first attempt above easily in
> the subversion trunk, however the code for switch stones has
> been re-factored since 1.01 and I wasn't sure how to proceed.
>
> So a few of questions:
> - What do you think of the new idea and how do the developers decide whether
> to integrate new game features like this?
> - Is subclassing a switch stone the best way to implement this?  I would be
> glad to hear any other approaches and suggestions.  What about making
> it-yinyang respond to a "swap" message, should this be left in?
> - If this feature is to be integrated, what is the best way to submit diffs
> (and artwork)?
>
> Thanks,
> Ivan
>
>
>
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