Allow dynamic node palette changes

[nauta-turbidus]

Problem

Sometimes, you might want to recolor all nodes that have paramtype2 = "color" (or variant thereof) to a different preset. A specific example of it would be a season system: a global palette change could be used to recolor all leaves on trees to autumn colors and then winter colors, and then spring and summer colors again. Now this can be done only on restart, or by changing param2 for all nodes of a type.

Solutions

Allow dynamically changing palette of a node. This would be akin to allowing a very small part of override_node() after load time.

Alternatives

Change param2 for each node in ABM/LBM/globalstep – this has the risk of overflowing the palette and obviously has overhead, and may cause a patchy look for a time, which may be desirable or not.

Additional context

No response

[SmallJoker]

Now this can be done only on restart, or by changing param2 for all nodes of a type.

Or by a VManip task that writes the new param2 values for each loaded mapblock. I would estimate that this can be done in < 100 ms for a default chunk (80*80*80 nodes), assuming LuaJIT is used.

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Your suggestion does seem reasonable, but does not cover all other cases where you might want to change the texture of a node. Limiting this to paramtype2 = "color" seems too specific.

[nauta-turbidus]

Now this can be done only on restart, or by changing param2 for all nodes of a type.

Or by a VManip task that writes the new param2 values for each loaded mapblock. I would estimate that this can be done in < 100 ms for a default chunk (808080 nodes), assuming LuaJIT is used.

Your suggestion does seem reasonable, but does not cover all other cases where you might want to change the texture of a node. Limiting this to paramtype2 = "color" seems too specific.

I mean, palette is a special texture with special purpose. You could make an endless chain of generalization requests, and you could collapse all feature requests to materials API and SSCSMs. I stand by keeping this to pallettes only, unless it turns out same mechanisms can be employed for any texture.