Is there a way to invert the color of a map?

I'm working on the storyline for Drakenmoor and think a useful indicator that the main character senses something's off would be for the entire map to invert its color.
The context for my need for this is that the MC will meet a primary antagonist and sense a wrongness about him enough for him to pick up a sword dropped by another character and engage him in battle.

(In fact, now that I think about it, this could be useful as a transition for normal battles. I'll have to think on that later...)

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May the Moon light your path, and the Shadows hide you from your prey.

Posgagen urzefa Posyosriig ahgesqizeur genyouldr Jiikyouldr, gariigig urzefa Sazegaigyouldsa zegesigfe genyould fr'yopos genyouldr jiikrfagen.

I think you could manually create an inverted alternate master palette and then use the 'load palette' command.

Seems like a lot of work for a second or two of inverted color, but then again, if the palette itself is inverted, then it's feasible that it would work. (Hours of rambling and thinking about this later...)

Could you test this and have a video showing the results?

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May the Moon light your path, and the Shadows hide you from your prey.

Posgagen urzefa Posyosriig ahgesqizeur genyouldr Jiikyouldr, gariigig urzefa Sazegaigyouldsa zegesigfe genyould fr'yopos genyouldr jiikrfagen.

Something I can think of, and I'll have to check plotscripting to make sure there is such coding, but changing master pallets with coding. at that point, just mirror or whatever your master pallete and then stick that as a secondary master-p then use coding to flip between the two.
edit:

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dOn'T MiNd mE! i'M jUsT CoNtAgIoUs!!!
Play Orbs CCG: http://orbsccg.com/r/4r6x

You could try something like this? This will invert the color of everything, including maptiles and walkabouts.



If you just want to invert just the maptiles, you have to make a new tileset and load it using "load tileset". It is really super-easy to invert your maptiles using MSPaint.
- Just open up your tileset in MSPaint.
- Ctrl-A to select everything.
- Right-click and choose "Invert colors".

At the point, I would need everything, including walkabouts, to be inverted. Given that all of my sprites will be using the default palette, I think changing the palette during that time would work. (If I'm understanding what everyone is saying correctly)

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May the Moon light your path, and the Shadows hide you from your prey.

Posgagen urzefa Posyosriig ahgesqizeur genyouldr Jiikyouldr, gariigig urzefa Sazegaigyouldsa zegesigfe genyould fr'yopos genyouldr jiikrfagen.

Switching the master palette around does seem like the ideal solution for what you want. Consider though, that it would look absolutely garish. Even for a second or two, the screen would look all strange, and that would include the menus as well, not just the sprites and the map.

Perhaps consider darkening everything instead? That'd be easier and you wouldn't have to muck about with other palettes.

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Being from the third world, I reserve the right to speak in the third person.

Using Editor version wip 20170527 gfx_sdl+fb music_sdl

the code snippet and stuff I posted from the plotscriptionary suggests using the fade effect in the code, so I'm sure fading out will make the pallete swapping not appear terrible of course, this is all in theory

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dOn'T MiNd mE! i'M jUsT CoNtAgIoUs!!!
Play Orbs CCG: http://orbsccg.com/r/4r6x

The inversion would only appear for a moment, then it would be gone as quickly as it came.

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May the Moon light your path, and the Shadows hide you from your prey.

Posgagen urzefa Posyosriig ahgesqizeur genyouldr Jiikyouldr, gariigig urzefa Sazegaigyouldsa zegesigfe genyould fr'yopos genyouldr jiikrfagen.

Fades are fairly slow (the speed isn't adjustable yet), so you would probably not want to use them.

readcolor and writecolor lose some precision (they use values from 0-63 instead of 0-255). If you called Sephy's script twice it would slightly modify the palette, so instead do the following: