[GAME] Moontest! (Back from the Dead!) [GAME]

[HeroOfTheWinds]

I originally wanted to use the on_generated function, and the code was commenced in that format. However, I couldn't get any answers on how to predict where exactly the player would spawn, so I had to switch to a point after generation... which led to this. I still am researching a way to predict the player spawn point during generation, but not getting any clear answers... I have considered just forcing the player to spawn at 0,0,0, but then it might be under a mountain, which could end up being weird.
The other alternative would be to stick the module generation where I currently have it, but stick it in a minetest.after() call, to give Minetest time to generate the map.

[paramat]

Perhaps instead of predicting where the player will spawn, choose and set the player's position, as in the spawnplayer functions i use in watershed, fracture and noisegrid. Spawning players inside landing modules is an excellent idea, something i would like to do myself.
For my moonrealm mod, it may be possible for the spawnplayer function to search for a suitable flat landing area by internally pre-generating terrain heightmaps, set the player's position there and then *somehow* create the module around the player.

[paramat]

Just got this working as an experimental spawnplayer function in fracture mod, it creates a glass spawn cube around the player at newplayer and respawn, no bugs. The mapgen overwrites some of the glass nodes because mapgen happens after the glass cube is spawned.
To do the same as this in moontest it may be necessary to pre-generate mgv7 heightmaps in lua to find a suitable spawnpoint at the surface, problem is mgv7 is about to get rewritten with a complex new mapgen i could not recreate in lua, although i could recreate the current mgv7.

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Code: Select all

   function spawnplayer(player)
      local DENOFF = -0.4
      local TSTONE = 0.02
      local PSCA = 4 -- Player scatter from world centre in chunks (80 nodes).
      local xsp
      local ysp
      local zsp
      local np_terrain = {
         offset = 0,
         scale = 1,
         spread = {x=384, y=128, z=384},
         seed = 593,
         octaves = 5,
         persist = 0.67
      }
      local np_terralt = {
         offset = 0,
         scale = 1,
         spread = {x=237, y=79, z=237},
         seed = 593,
         octaves = 5,
         persist = 0.67
      }
      for chunk = 1, 64 do
         print ("[fracture] searching for spawn "..chunk)
         local x0 = 80 * math.random(-PSCA, PSCA) - 32
         local z0 = 80 * math.random(-PSCA, PSCA) - 32
         local y0 = 80 * math.random(-PSCA, PSCA) - 32
         local x1 = x0 + 79
         local z1 = z0 + 79
         local y1 = y0 + 79
   
         local sidelen = 80
         local chulens = {x=sidelen, y=sidelen, z=sidelen}
         local minposxyz = {x=x0, y=y0, z=z0}

         local nvals_terrain = minetest.get_perlin_map(np_terrain, chulens):get3dMap_flat(minposxyz)
         local nvals_terralt = minetest.get_perlin_map(np_terralt, chulens):get3dMap_flat(minposxyz)
   
         local nixyz = 1
         local stable = {}
         for z = z0, z1 do
            for y = y0, y1 do
               for x = x0, x1 do
                  local si = x - x0 + 1
                  local n_terrain = nvals_terrain[nixyz]
                  local n_terralt = nvals_terralt[nixyz]
                  local density = (n_terrain + n_terralt) * 0.5 + DENOFF
                  if density >= TSTONE then
                     stable[si] = true
                  elseif stable[si] and density < 0 then
                     ysp = y + 1
                     xsp = x
                     zsp = z
                     break
                  end
                  nixyz = nixyz + 1
               end
               if ysp then
                  break
               end
            end
            if ysp then
               break
            end
         end
         if ysp then
            break
         end
      end
      print ("[fracture] spawn player ("..xsp.." "..ysp.." "..zsp..")")
      player:setpos({x=xsp, y=ysp, z=zsp})
      local vm = minetest.get_voxel_manip()
      local pos1 = {x=xsp-2, y=ysp-2, z=zsp-2}
      local pos2 = {x=xsp+2, y=ysp+2, z=zsp+2}
      local emin, emax = vm:read_from_map(pos1, pos2)
      local area = VoxelArea:new({MinEdge=emin, MaxEdge=emax})
      local data = vm:get_data()
      local c_glass = minetest.get_content_id("default:glass")
      for i = -2, 2 do
      for j = -2, 2 do
      for k = -2, 2 do
         if i ^ 2 + j ^ 2 + k ^ 2 >= 4 then
            local vi = area:index(xsp + i, ysp + j, zsp + k)
            data[vi] = c_glass
         end
      end
      end
      end
      vm:set_data(data)
      vm:write_to_map()
      vm:update_map()
   end

   minetest.register_on_newplayer(function(player)
      spawnplayer(player)
   end)

   minetest.register_on_respawnplayer(function(player)
      spawnplayer(player)
      return true
   end)

[HeroOfTheWinds]

That's some pretty neat code, paramat.

I ended up finding a different solution, using static_spawnpoint in minetest.config instead.

And so, moontest now has the game start with players inside a shared Apollo Lunar Module! 639 lines of code later...
Interesting note, trying to place mesecons wires and other mesecons objects with the Lua Voxel Manipulator is something I would not like to try again... you need to get the content id for each individual type of wire bend, e.g. mesecons:wire_10100000_on. So yeah.... doable, but painstaking.

[paramat]

My spawn egg in moonrealm was being overwritten by the vacuum nodes, so i edited the mapgen to only replace "air" or "ignore", any spawn vehicle created in 'register on newplayer' is now left untouched.

This is a good discovery ...

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Code: Select all

[noisegrid] chunk minp (-32 -32 -32)
[noisegrid] emin (-48 -48 -48)
[noisegrid] emax (63 63 63)


For the 'on generated' version of voxelmanip, the actual emerged volume extends 16 nodes (one engine mapblock) beyond all sides, this is why my mapgen trees rarely get chopped despite often extending above the chunk being generated.

[Zsoltisawesome]

I noticed that this hasn't been really updated lately, so I'll give a short rundown of recent additions and changes...

Current issues: Spacesuits don't work, vacuum doesn't spread, caves spawn with air, not vacuum, vacuum only goes up to the normal water level...
I hate bugs...

All of these are now fixed! I am the vacuum master!
Lua Voxel Manipulator reigns supreme now.

Ores have been largely changed, only Mese and iron return from regular Minetest right now. In place of coal, we now have phosphorus. The new titanium has been added as a highly durable metal, and now there is a new ore called Lunarium that is better than even diamond. (Think of it as moon mese) Silicon can also be found, and it drops the same silicon used in Mesecons. Tools can be crafted from titanium and lunarium.

Light Crystals can now be crafted into light sticks, which have a recipe modeled after torches and give off light just tad bit dimmer than regular torches. Speaking of regular torches, they now go out and become unlit if they are placed in a vacuum. Place them in air from an airgen, though, and it's all good. To relight a torch that's gone out, rightclick it with a stick while in air.

Airgen was bugged, it would spread air out even in total vacuum. Also, if a sealed room became unsealed, the air wouldn't leave. Needless to say, fixed. Several similar errors occurred with liquids, those were also fixed.

Moon trees have been added to provide a source of wood. They are basically monochrome versions of regular trees, and spawn very few and far apart.

Zeg9's UFOs have been added, modified to travel faster and run on lunarium lumps instead of obsidian shards.

New node, half-functional, half-decorative: Air Shield. Can be passed through like trapstone from moreblocks, and has a snazzy animated texture. Use it for doors on buildings with air inside.

Stay tuned for more!

Thanks much for keeping it updated!

[Zsoltisawesome]

its gone guys, I just deleted moontest from my github...

its gone...







forever...

Bye guys!

EDIT: Amaz has taken over, see first post

[Krock]

Re: [GAME] Moontest! (Back from the Dead!) [GAME]

<snip>

Why?

[Zsoltisawesome]

'twas a huge responsibility, and Amaz has done most of the work to date, so I figured that he could have it...

[paramat]

Please could you add me as a contributor in the README? I wrote the footprints, air/vacuum spread and hydroponics codes. I also created 15 of the textures.
Also, i know that some of the air/vacuum spreading code has been rewritten, but you might want to revert to my original code as it was carefully designed and tested over months by mauvebic and myself. Some of the air/vacuum behaviour might have seemed odd but it was that way for good reasons, one of which is avoiding uncontrolled and exponential life support air spread which can cause an ABM server meltdown. If you experience unexplained server slowdown that might be the reason.

[HeroOfTheWinds]

Please could you add me as a contributor in the README? I wrote the footprints, air/vacuum spread and hydroponics codes. I also created 15 of the textures.
Also, i know that some of the air/vacuum spreading code has been rewritten, but you might want to revert to my original code as it was carefully designed and tested over months by mauvebic and myself. Some of the air/vacuum behaviour might have seemed odd but it was that way for good reasons, one of which is avoiding uncontrolled and exponential life support air spread which can cause an ABM server meltdown. If you experience unexplained server slowdown that might be the reason.

Regarding the air/vacuum rewrite: I was very careful to prevent said meltdown. I made it so that vacuum always had dominance, and rather than having air spread slowly from the source, I just had the LVM scan the maximum radius of the air generator, and fill all vacuum within range with air, just once, on placement. Thus, any air that gets generated outside the structure quickly gets eaten away by the vacuum. However, if you still see some possibility for error in that logic, I shall yield to your experience. In my tests, I didn't have much trouble, and your old code allowed air to exist in open spaces, while mine quickly (usually in 1-3 seconds max) cleans up air that shouldn't exist.

[Hybrid Dog]

A few days ago, l made a little hole into the hull of the Apollo moon station. Then there was a little vacuum node in it. After that l closed the hole to avoid that more air moves out. But for any reason the whole air disappeared like flowing water disappears without source.

[paramat]

Okay thanks HOTWinds, wanted to check it was done right. Your method sounds better actually, good idea.

[Hybrid Dog]

That were some of paramat's 15 textures?
https://github.com/Amaz1/moontest/pull/2/files

l know a function to get e.g. every water node of a sea, even if the sea is curved and l already use it:
https://github.com/HybridDog/extrablock ... t.lua#L302

[paramat]

Out of those in your link, the original dust, dustprint1/2, soil and stone were mine CC BY SA.

[AMMOnym]

Could some asteroids float in the "air" ?

[12Me21]

is this still being worked on anywhere?

ANYWAY:
On the moon (in real life), the earth stays in the same position in the sky all the time. This is because the same side of the moon always faces the earth.
The moon has a day/night cycle lasting almost a month (29 days, 12 hours, 44 minutes, 3 seconds on average), which is 7.5 real-life hours when it is to scale with the normal in-game day/night cycle (96x faster than real life)
This might be inconvienent, however.

[HeroOfTheWinds]

This is in fact still being worked on, primarily over on OldCoder's Moontest server. Nothing too big has been done yet, but I have something huge in development for it... just not ready yet. I will say this: Moontest may no longer be just the moon. There has been a lot of bugfixing going on in the background too, and there's an ingame wiki page on the server saying what other bugs are up for fixing. Progress will be better once I'm on break from college...

[Sokomine]

This is in fact still being worked on, primarily over on OldCoder's Moontest server. Nothing too big has been done yet, but I have something huge in development for it... just not ready yet. I will say this: Moontest may no longer be just the moon. There has been a lot of bugfixing going on in the background too, and there's an ingame wiki page on the server saying what other bugs are up for fixing. Progress will be better once I'm on break from college...

That sounds very promising! Moontest has such a nice background texture that it's fun to visit just in order to take a look at the stars. Gameplay as such could use some more improvements (another type of "tree" that fits more to the environment; maybe more like vines etc.)

[paramat]

I plan to use your methods for air and vacuum in moonrealm mod as they seem better, thanks.