[Mod] Moon realm [0.9.2] [moonrealm]

[Inocudom]

How do you intend to make it so that the sky always looks like the player is in space, even during the daytime?

[paramat]

The mod below is a good basis for creating alien ruins above ground and below ground.
http://forum.minetest.net/viewtopic.php?id=5524

The new fast schematics functions will be excellent for structures, 0.4.6 totally blew my mind but 0.4.8 is another huge improvement. Those who left just don't understand what they're missing, distracted by cosmetic changes to minetest_game. This game is far beyond minecraft but also free and open source.

[paramat]

How do you intend to make it so that the sky always looks like the player is in space, even during the daytime?

Oh haha i don't intend, that's why this is a large moon / small planet with a thin atmosphere (which just happens to be blue).

But then, you could make it always night and make the surface nodes glow ... ? might slow generation but sounds fun to try once. You only get night sky during day when there is no atmosphere, lots of moons have thin atmospheres.

[Nore]

We need a function to change the time for only one player, and to change his stars/moon/sun background... We could get real space...

[paramat]

Someone could run a space server with time stationary and set to night. In space the sun is actually blinding yellow-white so you could consider the 'moon' to be the sun.

[Mossmanikin]

Looks awesome

[Nore]

Is it water at the top of the map? That looks strange on a moon...
@mauvebic: were you finally able to finish your code for an atmosphere? If so, I'd like to see it.

paramat: If you want faster generation for those who have the indev release, without affecting the generation time for the others, use that code:

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Code: Select all

if minetest.place_schematic==nil then
    function minetest.place_schematic(pos, schematic)
        local x = pos.x
        local y = pos.y
        local z = pos.z
        local set_node = minetest.set_node
        local scmdata = schematic.data
        local j2, k2
        for k = 0, schematic.size.z-1 do
            k2 = k*schematic.size.x*schematic.size.y
            for j = 0, schematic.size.y-1 do
                j2 = j*schematic.size.x
                for i = 0, schematic.size.x-1 do
                    if scmdata[i+j2+k2+1].name~="ignore" then
                        set_node({x=x+i,y=y+j,z=z+k}, scmdata[i+j2+k2+1])
                    end
                end
            end
        end
    end
end

with a modfied ces function that will set "ignore" to all locations instead of air.

[mauvebic]

@mauvebic: were you finally able to finish your code for an atmosphere? If so, I'd like to see it.

I did get it to work but the results were disappointing with a test dome. It simply took too long for oxygen to be produced and move (or at least, one of the two processes was slowing things down). After an evening (few hours) my test dome still didn't have a full breathable atmosphere. On the flipside, increasing the speed through the abm's made the server slower (--FPS,++cpu usage).

Another avenue might be to implement the lua drowning mod in reverse (make players suffocate above a certain Y threshold w/o the spacesuit) though that comes with it's own caveat of not knowing when a player is indoors or not (they would suffocate in bases). One solution to that might be to add atmospheric generator nodes. Register/poll the position of these gens and give them an effective radius. Then the suffocation (reverse drowning) mod could simply check if the player is within range of said generator.

Anyways, here's the code (if someone can make it work more smoothly):

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Code: Select all

--[[
minetest.register_node(":air", {
    description = "Air",
    inventory_image = "unknown_node.png",
    wield_image = "unknown_node.png",
    drawtype = "airlike",
    paramtype = "light",
    sunlight_propagates = true,
    walkable = false,
    pointable = false,
    diggable = false,
    buildable_to = true,
    air_equivalent = true,
    drop = "",
--    groups = {not_in_creative_inventory=1},
})
minetest.register_node(":void", {
    description = "Void (you hacker you!)",
    inventory_image = "unknown_node.png",
    wield_image = "unknown_node.png",
    drawtype = "airlike",
    paramtype = "light",
    sunlight_propagates = true,
    walkable = false,
    pointable = false,
    diggable = false,
    buildable_to = true,
    air_equivalent = true,
    drop = "",
    groups = {not_in_creative_inventory=1},
    damage_per_second = 2,
    post_effect_color = {a=64, r=255, g=148, b=0},
})
for i=1,8 do
    minetest.register_ore({
        ore_type       = "scatter",
        ore            = 'void',
        wherein        = 'air',
        clust_scarcity = 1,
        clust_num_ores = 1,
        clust_size     = 1,
        height_min     = 14000,
        height_max     = 30000,
    })
end


minetest.register_abm({
    nodenames = { "air"},
    interval = 2,
    chance = 10,
    action = function(pos, node, active_object_count, active_object_count_wider)
        if pos.y > 14000 then
            for _, cp in pairs({{x=pos.x+1,y=pos.y,z=pos.z},{x=pos.x-1,y=pos.y,z=pos.z},{x=pos.x,y=pos.y+1,z=pos.z},
            {x=pos.x,y=pos.y-1,z=pos.z},{x=pos.x,y=pos.y,z=pos.z+1},{x=pos.x,y=pos.y,z=pos.z-1},}) do
                if minetest.env:get_node(cp).name == 'void' then
                --    print('moving air')
                    minetest.env:remove_node(cp) -- air dest
                    minetest.env:add_node(pos,{name='void'}) -- air source
                    break
                end
            end
        end
    end
})
minetest.register_abm({
    nodenames = { "group:leaves"},
    interval = 5,
    chance = 6,
    action = function(pos, node, active_object_count, active_object_count_wider)
        if pos.y > 14000 then
            for _, cp in pairs({{x=pos.x+1,y=pos.y,z=pos.z},{x=pos.x-1,y=pos.y,z=pos.z},{x=pos.x,y=pos.y+1,z=pos.z},
            {x=pos.x,y=pos.y-1,z=pos.z},{x=pos.x,y=pos.y,z=pos.z+1},{x=pos.x,y=pos.y,z=pos.z-1},}) do
                if minetest.env:get_node(cp).name == 'void' then
                --    print('making air')
                    minetest.env:remove_node(cp) -- air dest
                end
            end
        end
    end
})
]]--


This is my rebuilt base using paramat's 020 version:

[Nore]

Did you try to add a neighbors = {"void"} field to the ABM ? It will avoid unecessary operations.

[mauvebic]

I was thinking of using minetest.find_nodes_in_area(minp, maxp, 'void')

leaves could replace more voids with air (current limit: 6 nodes or radius 1). It might help speed up air movement too.

Adding neighbours field would also improve performance as the dome fills up (fewer voids).

[paramat]

This idea of turning vacuum / poison atmosphere nodes into air nodes is interesting and inspiring. Nice base.

[paramat]

Is it water at the top of the map? That looks strange on a moon...

paramat: If you want faster generation for those who have the indev release, without affecting the generation time for the others, use that code

That's water on the normal surface below :)

Thanks but no point me using that code 0.4.8 is coming soon and i'll then be concentrating on using hmmm's voxel map manipulator, also he recommended not using schematics for large scale realm generation.

[prof-turbo]

---Idea---

When arriving to a x level of depht, you fall in space

Exemple :
| between -500 and -450, there's space :
|
|spawn
|___________________________
|moon |
|___________________________|
|blank

[paramat]

prof-turbo, yeah that already happens in this mod, by default dig 1km down to reach realm bottom.

[Inocudom]

Have you had any luck with creating abandoned alien ruins yet? They could be made out of the same ores that could be found within the moon. Maybe mauvebic could help out with this, since he is very good at making gargantuan structures.

[mauvebic]

Well, i have ships and bases from ST and BSG, and buildings from SW, though i have no idea what the new schematics in plaintext look like, id likely have to convert my models.

[paramat]

Version 0.3.0.
Link, details, screenshots in edited first post.

[paramat]

Now on github, link in first post.

[mauvebic]

updated shots of moonbase Titan I. Residential building is up, got water, plasma & beer distrubtion running :-)

[Inocudom]

updated shots of moonbase Titan I. Residential building is up, got water, plasma & beer distrubtion running :-)

Good to see you back with us again, Mauvebic.

[BadWolf]

I'm slightly confused, I'm trying to learn and understand the code here, mauvebic, did your code create air inside the structures only?

I ask because I'm inspired to possibly try my hand at recreating the planet 'Diamond' where the sunlight is toxic, and people must be protected by thick sheets of glass. is it possible to have the toxic atmosphere flow downward, and have air generator blocks that would allow the building of structures in a toxic environment?

[mauvebic]

Good to see you back with us again, Mauvebic.

Im just building though. Considering ive been waiting two years for a genuine space map, it's hardly surprising this mod piqued my interest :p As for development, that requires more patience for rudeness and politics than what i got lol

I'lll keep posting shots of my base as it progresses (unless paramat asks me to move them) :-)

[mauvebic]

I'm slightly confused, I'm trying to learn and understand the code here, mauvebic, did your code create air inside the structures only?

Naw it doesn't matter where the leaves are (indoor or outdoors), they just create air by replacing neighbouring voids. The other abm' moves the air nodes towards (neighbouring) void. So a dome is only there to keep the air in. Without a dome, the air nodes would scatter in every direction.

[BadWolf]

Thanks for the reply. I see now in the code where you have the trees generating air. So it would be possible to add on an atmosphere generating machine, rather than trees.

I really need to read up on the minetest API.

[mauvebic]

yeah if you want a machine to do the air-generating, just change the leaves abm so that it works on your generator node instead :-)

[paramat]

I'lll keep posting shots of my base as it progresses (unless paramat asks me to move them) :-)

No problem i don't mind :)

[paramat]

Version 0.3.0 was released with some experimental parameters:

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local HEXP = 1.5
local LEXP = 3

Now i'm not sure i like the terrain, so, if you want the classic moonrealm terrain from versions 0.1.0 and 0.2.0 (screens below) you should edit these to:

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local HEXP = 2
local LEXP = 2

These are the 'crazyness' parameters for the higher and lower terrain, and define the cliffs ... set to 1 results in standard 3D perlin noise landscape, 2 and above for cliffs, overhangs, 'floaty bits', tunnels, spikes. Remember this can be set to fractional values and below 1 ... it should be fine tuned to your taste.

[paramat]

I was inspired by mauvebic's use of air generation to experiment ... managed to clear a small room in about 2 minutes. Its funny i hadn't thought of trees duh ...
First time i tried i managed to get an air leak through a diagonal corner situation ... its scary once my air gets out it spreads quick ... the game quickly headed for abm meltdown.
So yeah this'll be in 0.4.0.
Also, the dust colours were not carefully chosen i assumed most of you would change the textures to your taste?
Anyways code.

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minetest.register_node("moonrealm:airgen", {
    description = "Air Generator",
    tiles = {"moonrealm_airgen.png"},
    groups = {dig_immediate=1},
    sounds = default.node_sound_stone_defaults(),
    on_construct = function(pos)
        local env = minetest.env
        local x = pos.x
        local y = pos.y
        local z = pos.z
        for i = -1,1 do
        for j = -1,1 do
        for k = -1,1 do
            if not (i == 0 and j == 0 and k == 0) then
                local nodename = env:get_node({x=x+i,y=y+j,z=z+k}).name
                if nodename == "moonrealm:atmos" then
                    env:add_node({x=x+i,y=y+j,z=z+k},{name="moonrealm:air"})
                end
            end
        end
        end
        end
       
    end
})

-- On dignode. Atmosphere flows into a dug hole.

if ATMOS then
    minetest.register_on_dignode(function(pos, oldnode, digger)
        local env = minetest.env
        local x = pos.x
        local y = pos.y
        local z = pos.z
        for i = -1,1 do
        for j = -1,1 do
        for k = -1,1 do
            if not (i == 0 and j == 0 and k == 0) then
                local nodename = env:get_node({x=x+i,y=y+j,z=z+k}).name
                if nodename == "moonrealm:atmos" then   
                    env:add_node({x=x,y=y,z=z},{name="moonrealm:atmos"})
                    return
                end
            end
        end
        end
        end
    end)
end

-- Abm.

if ATMOS then
    minetest.register_abm({
        nodenames = {"moonrealm:air"},
        neighbors = {"moonrealm:atmos"},
        interval = AIRINT,
        chance = 9,
        action = function(pos, node, active_object_count, active_object_count_wider)
            local env = minetest.env
            local x = pos.x
            local y = pos.y
            local z = pos.z
            for i = -1,1 do
            for j = -1,1 do
            for k = -1,1 do
                if not (i == 0 and j == 0 and k == 0) then
                    local nodename = env:get_node({x=x+i,y=y+j,z=z+k}).name
                    if nodename == "moonrealm:atmos" then
                        env:add_node({x=x+i,y=y+j,z=z+k},{name="moonrealm:air"})
                        print ("[moonrealm] Air spreads ("..i.." "..j.." "..k..")")
                    end
                end
            end
            end
            end
        end
    })
end

[paramat]

Lots of new screens in first post.

[mauvebic]

You need generators in the beginning anyhow, trees won't spawn in atmosphere, though i'd still use both (large structures need the help). If my code had been less laggy, i would have also made air and/or water turn moondust to dirt, essentially terraforming.