mtcontrib/rocks
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Quite usable demo.

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This commit is contained in:
Tomáš Brada 2014-12-27 22:57:04 +01:00
parent 0b04f5f171
commit 624fab3353
1 changed files with 8 additions and 6 deletions
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14
init.lua
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@ -15,11 +15,11 @@ rocks.veins = {}
rocks.ores = {} rocks.ores = {}
rocks.layer_gain=40 rocks.layer_gain=40
rocks.layer_scale=500 rocks.layer_scale=300
rocks.layer_presist=0.7 rocks.layer_presist=0.7
rocks.layer_octaves=3 rocks.layer_octaves=3
rocks.rock_scale=3 rocks.rock_scale=10
rocks.rock_presist=0.5 rocks.rock_presist=0.5
rocks.rock_octaves=1 -- faster than 2 ? rocks.rock_octaves=1 -- faster than 2 ?
@ -51,7 +51,7 @@ end
-- test layer -- test layer
-- --
rocks.register_layer("test",{ gain=10, height=100 }) rocks.register_layer("test",{ gain=10, height=70 })
rocks.register_rock("test","rocks:black_granite",1) rocks.register_rock("test","rocks:black_granite",1)
rocks.register_rock("test","rocks:brown_granite",1) rocks.register_rock("test","rocks:brown_granite",1)
rocks.register_rock("test","rocks:pink_granite",1) rocks.register_rock("test","rocks:pink_granite",1)
@ -110,23 +110,25 @@ minetest.register_on_generated(function(minp, maxp, seed)
if layer then if layer then
-- noise for rocks -- noise for rocks
rnoise=noise_rock:get3d( {x=x, y=y, z=z} ) rnoise=noise_rock:get3d( {x=x, y=y, z=z} )
rnoise=math.sin(rnoise*math.pi)
rnoise=(rnoise+1)*(layer.sum/2)
if rnoise>maxrnoise then maxrnoise=rnoise end if rnoise>maxrnoise then maxrnoise=rnoise end
if rnoise<minrnoise then minrnoise=rnoise end if rnoise<minrnoise then minrnoise=rnoise end
-- noise is mainly -1+2, but sometimes may go further -- noise is mainly -1+2, but sometimes may go further
rnoise=(rnoise+1)*(layer.sum/2)
if rnoise<0 then rnoise=0 end if rnoise<0 then rnoise=0 end
if rnoise>layer.sum then rnoise=layer.sum end if rnoise>layer.sum then rnoise=layer.sum end
-- select current rock -- select current rock
local rofs=0 local rofs=0
local rockix=nil
for rn,rd in pairs(layer.rocks) do for rn,rd in pairs(layer.rocks) do
if (rnoise>=rofs) and (rnoise<rofs+rd.amount) then if (rnoise>rofs) and (rnoise<=rofs+rd.amount) then
rockix=rn rockix=rn
end end
rofs=rofs+rd.amount rofs=rofs+rd.amount
end end
-- place rocks -- place rocks
local p_pos = area:index(x, y, z) local p_pos = area:index(x, y, z)
if (nodes[p_pos]==stonectx)or true then if rockix and ((nodes[p_pos]==stonectx)or true) then
local cr=layer.rocks[rockix].block local cr=layer.rocks[rockix].block
local ctx=layer.rocks[rockix].blockctx local ctx=layer.rocks[rockix].blockctx
layer.rocks[rockix].placed=layer.rocks[rockix].placed+1 layer.rocks[rockix].placed=layer.rocks[rockix].placed+1