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git://repo.or.cz/rocks.git
synced 2024-09-28 23:30:39 +02:00
Split source code to init mapgen and register.
This commit is contained in:
Tomáš Brada
parent
3c3248108c
commit
0d5facc4c5
163
init.lua
163
init.lua
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@ -8,11 +8,9 @@ if (minetest.get_modpath("intllib")) then
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S = function ( s ) return s end
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end
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rocks = {}
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local modpath=minetest.get_modpath(minetest.get_current_modname()))
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rocks.layers = {}
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rocks.veins = {}
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rocks.ores = {}
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dofile(modpath.."/register.lua")
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rocks.noiseparams_layers = {
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offset = 0,
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@ -22,60 +20,6 @@ rocks.noiseparams_layers = {
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persist = 0.63
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}
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rocks.register_layer=function(name,params,rock)
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assert(name)
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assert(params)
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assert(params.gain)
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assert(params.height)
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local maxheight
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for ln,ld in pairs(rocks.layers) do
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if (ld.height<params.height)and ((not ld.maxheight) or (ld.maxheight>params.height)) then ld.maxheight=params.height end
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if (ld.height>params.height)and((not maxheight) or (maxheight>ld.height)) then maxheight=ld.height end
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end
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rocks.layers[name]= {
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gain=params.gain,
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height=params.height,
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maxheight=maxheight,
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limit=params.limit,
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seed=params.seed,
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rock={ block=rock },
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veins={}
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}
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print("[rocks] layer "..name)
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end
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rocks.register_vein=function(name,params)
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assert(name)
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assert(params)
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assert(not rocks.veins[name])
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rocks.veins[name]={
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np={
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offset=0, scale=1, octaves=1, presist=0.8,
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spread=params.spread, seed=params.seed
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},
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treshold=params.treshold,
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hmin=params.hmin, hmax=params.hmax,
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layers=params.layers,
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ores={}
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}
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for ln,ld in pairs(rocks.layers) do
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ld.veins[name]=rocks.veins[name]
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end
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print("[rocks] vein "..name)
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end
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rocks.register_ore=function( vein, node, params )
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-- params= {treshold=0, chance=1 }
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ore={ node=node }
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if params.treshold and (params.treshold>rocks.veins[vein].treshold) then
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ore.treshold=params.treshold
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end
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if params.chance and (params.chance<1) then
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ore.chance=params.chance
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end
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table.insert(rocks.veins[vein].ores, ore)
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print("[rocks] ore "..node.." in "..vein.." chance="..(ore.chance or "1").." treshold="..(ore.treshold or rocks.veins[vein].treshold))
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end
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--
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-- test layer
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@ -115,108 +59,7 @@ rocks.register_ore( "testvein1", "default:lava_source", {treshold=0.8, chance=1
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-- 20% wood, lava in center, dirt the rest
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-- ore with smallest chance and highest treshold is selected
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for ln,ld in pairs(rocks.layers) do
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-- print("[rocks] debug: "..ln..": "..minetest.serialize(ld))
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end
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--
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-- layer generator
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--
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local function mknoises(layers,minp,maxp)
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local nm={}
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for ln,ld in pairs(rocks.layers) do
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if (ld.height-ld.gain<maxp.y)and((not ld.maxheight)or(ld.maxheight+ld.gain>minp.y)) then
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local np=rocks.noiseparams_layers
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np.seed=ld.seed
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local side_length = maxp.x - minp.x + 1
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ld.nmap=minetest.get_perlin_map(np,{x=side_length, y=side_length, z=side_length}):get2dMap({x=minp.x, y=minp.z})
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table.insert(nm,ld)
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end
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end
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return nm
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end
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local function mkheightmap(layers,x,z,minp,maxp)
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local hm={}
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for ln,ld in pairs(layers) do
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local noise=ld.nmap[z-minp.z+1][x-minp.x+1]
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if math.abs(noise)<ld.limit then
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ld.nh = (noise*ld.gain)+ld.height
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-- if (ld.nh<maxy)and(ld.nh>miny)
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table.insert(hm,ld)
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end
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end
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return hm
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end
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local stonectx=nil
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minetest.register_on_generated(function(minp, maxp, seed)
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if not stonectx then stonectx= minetest.get_content_id("default:stone") end
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-- noise values range (-1;+1) (1 octave)
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-- 3 octaves it is like 1.7 max
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-- 4 octaves with 0.8 presist = 2.125 max !!
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-- if ...
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local timebefore=os.clock();
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local manipulator, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local nodes = manipulator:get_data()
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local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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-- initialize noises and sort out unused layers
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local availlayers=mknoises(rocks.layers,minp,maxp)
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--
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for x=minp.x,maxp.x,1 do
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for z=minp.z,maxp.z,1 do
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--* initialize layers hmap
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local layers=mkheightmap(availlayers,x,z,minp,maxp)
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if (minp.x>0)and(minp.x<200) then layers=nil end --< debug
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if layers then for y=minp.y,maxp.y,1 do
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--* select layer
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local layer
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for ln,ld in pairs(layers) do
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if (ld)and
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(ld.nh<y)and
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((not layer)or(ld.height>layer.height))
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then
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layer=ld
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end
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end
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--* select vein
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local vein=nil
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if layer then
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-- vein=todo... iterate vein's noises and select one above it's treshold
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end
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--* select rock
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local rock=nil
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if vein then
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rock=nil -- todo... --> based on pseudorandom, no pattern, just random
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elseif layer then
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rock=layer.rock -- not in vein > select base rock
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end
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--* place rocks
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if rock then
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if not rock.ctx then
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rock.ctx=minetest.get_content_id(rock.block)
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end
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local p_pos = area:index(x, y, z)
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nodes[p_pos] = rock.ctx
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end
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end end
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end
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end
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manipulator:set_data(nodes)
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-- manipulator:calc_lighting()
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-- manipulator:update_liquids()
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manipulator:write_to_map()
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print("[rocks] gen "..os.clock()-timebefore)
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end)
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dofile(modpath.."/mapgen.lua")
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--
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--Bedrock
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96
mapgen.lua
Normal file
96
mapgen.lua
Normal file
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@ -0,0 +1,96 @@
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--
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-- layer generator
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--
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local function mknoises(layers,minp,maxp)
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local nm={}
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for ln,ld in pairs(rocks.layers) do
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if (ld.height-ld.gain<maxp.y)and((not ld.maxheight)or(ld.maxheight+ld.gain>minp.y)) then
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local np=rocks.noiseparams_layers
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np.seed=ld.seed
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local side_length = maxp.x - minp.x + 1
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ld.nmap=minetest.get_perlin_map(np,{x=side_length, y=side_length, z=side_length}):get2dMap({x=minp.x, y=minp.z})
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table.insert(nm,ld)
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end
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end
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return nm
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end
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local function mkheightmap(layers,x,z,minp,maxp)
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local hm={}
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for ln,ld in pairs(layers) do
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local noise=ld.nmap[z-minp.z+1][x-minp.x+1]
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if math.abs(noise)<ld.limit then
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ld.nh = (noise*ld.gain)+ld.height
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-- if (ld.nh<maxy)and(ld.nh>miny)
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table.insert(hm,ld)
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end
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end
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return hm
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end
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local stonectx=nil
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minetest.register_on_generated(function(minp, maxp, seed)
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if not stonectx then stonectx= minetest.get_content_id("default:stone") end
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-- noise values range (-1;+1) (1 octave)
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-- 3 octaves it is like 1.7 max
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-- 4 octaves with 0.8 presist = 2.125 max !!
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-- if ...
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local timebefore=os.clock();
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local manipulator, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local nodes = manipulator:get_data()
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local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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-- initialize noises and sort out unused layers
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local availlayers=mknoises(rocks.layers,minp,maxp)
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--
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for x=minp.x,maxp.x,1 do
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for z=minp.z,maxp.z,1 do
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--* initialize layers hmap
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local layers=mkheightmap(availlayers,x,z,minp,maxp)
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if (minp.x>0)and(minp.x<200) then layers=nil end --< debug
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if layers then for y=minp.y,maxp.y,1 do
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--* select layer
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local layer
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for ln,ld in pairs(layers) do
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if (ld)and
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(ld.nh<y)and
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((not layer)or(ld.height>layer.height))
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then
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layer=ld
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end
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end
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--* select vein
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local vein=nil
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if layer then
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-- vein=todo... iterate vein's noises and select one above it's treshold
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end
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--* select rock
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local rock=nil
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if vein then
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rock=nil -- todo... --> based on pseudorandom, no pattern, just random
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elseif layer then
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rock=layer.rock -- not in vein > select base rock
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end
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--* place rocks
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if rock then
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if not rock.ctx then
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rock.ctx=minetest.get_content_id(rock.block)
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end
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local p_pos = area:index(x, y, z)
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nodes[p_pos] = rock.ctx
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end
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end end
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end
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end
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manipulator:set_data(nodes)
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-- manipulator:calc_lighting()
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-- manipulator:update_liquids()
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manipulator:write_to_map()
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print("[rocks] gen "..os.clock()-timebefore)
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end)
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62
register.lua
Normal file
62
register.lua
Normal file
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@ -0,0 +1,62 @@
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-- global table and register_* functions
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rocks = {}
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rocks.layers = {}
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rocks.veins = {}
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rocks.ores = {}
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rocks.register_layer=function(name,params,rock)
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assert(name)
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assert(params)
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assert(params.gain)
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assert(params.height)
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local maxheight
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for ln,ld in pairs(rocks.layers) do
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if (ld.height<params.height)and ((not ld.maxheight) or (ld.maxheight>params.height)) then ld.maxheight=params.height end
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if (ld.height>params.height)and((not maxheight) or (maxheight>ld.height)) then maxheight=ld.height end
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end
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rocks.layers[name]= {
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gain=params.gain,
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height=params.height,
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maxheight=maxheight,
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limit=params.limit,
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seed=params.seed,
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rock={ block=rock },
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veins={}
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}
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print("[rocks] layer "..name)
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end
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rocks.register_vein=function(name,params)
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assert(name)
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assert(params)
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assert(not rocks.veins[name])
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rocks.veins[name]={
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np={
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offset=0, scale=1, octaves=1, presist=0.8,
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spread=params.spread, seed=params.seed
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},
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treshold=params.treshold,
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hmin=params.hmin, hmax=params.hmax,
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layers=params.layers,
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ores={}
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}
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for ln,ld in pairs(rocks.layers) do
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ld.veins[name]=rocks.veins[name]
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end
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print("[rocks] vein "..name)
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end
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rocks.register_ore=function( vein, node, params )
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-- params= {treshold=0, chance=1 }
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ore={ node=node }
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if params.treshold and (params.treshold>rocks.veins[vein].treshold) then
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ore.treshold=params.treshold
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end
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if params.chance and (params.chance<1) then
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ore.chance=params.chance
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end
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table.insert(rocks.veins[vein].ores, ore)
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print("[rocks] ore "..node.." in "..vein.." chance="..(ore.chance or "1").." treshold="..(ore.treshold or rocks.veins[vein].treshold))
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end
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