Map block loading

[rubenwardy]

This would be useful for mobs, map generation mods, etc.

This is similar to an entities keep loaded pull request, but this is much more controllable.

(if map generation mods, ie dr who, want to generate a tardis at 0,-3000,0, then it wont work because it is unloaded)

Code: Select all

minetest.request_load_block(x,y,z)

minetest.register_on_unload_request(function(mapmanip,pos)
      -- returns false/null if it is ok to unload this area, according to this mod
end)

[sfan5]

minetest.register_on_load_request(function(mapmanip,pos)) does not seem useful at all

[Evergreen]

minetest.register_on_load_request(function(mapmanip,pos)) does not seem useful at all

That function isn't useful, but I do think the request_load_block is.

[rubenwardy]

Yeah, there is not real reason why a mod would cancel a block load.

Also, there is no reason to unload a block.

[PilzAdam]

Currently the whole API is designed to hide mapblocks from Lua, and there is no need to break that concept.

[rubenwardy]

What would you do instead?

Code: Select all

-- load lock
a = minetest.load(x,y,z,radius)

-- move
a:move(x,y,z)

-- later in program, maybe in another tick
a:close()

You could include that api shown above, and then create a handler in lua like the above.

Code: Select all

on unload request:
     for each loadlock:
          if intersects block
                cancel unload

     allow unload

[SegFault22]

Could we please call it "World" generation, rather than "Map" generation? Maps are flat, like Minecraft, but worlds can be anything else, right?

[webdesigner97]

I like this. Keeps sewers and underground rails always loaded

[xyz]

You can abuse VoxelManip to load blocks: https://github.com/xyzz/minetest-stress ... un.lua#L37

[webdesigner97]

You can abuse VoxelManip to load blocks: https://github.com/xyzz/minetest-stress ... un.lua#L37

oh

[rubenwardy]

Ah, that's handy.