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vector_extras
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This commit is contained in:
HybridDog 2015-08-27 21:23:11 +02:00
parent f85a54a070
commit 8700859ea5
2 changed files with 5 additions and 7 deletions
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2
README.txt
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@ -1,2 +1,2 @@
TODO: TODO:
— add things to this list — maybe make the explosion table function return a perlin explosion table

10
init.lua
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@ -410,7 +410,7 @@ local default_nparams = {
octaves = 6, octaves = 6,
persist = 0.6 persist = 0.6
} }
function funcs.explosion_perlin(pos, rmin, rmax, nparams) function funcs.explosion_perlin(rmin, rmax, nparams)
local t1 = os.clock() local t1 = os.clock()
local r = math.ceil(rmax) local r = math.ceil(rmax)
@ -420,17 +420,16 @@ function funcs.explosion_perlin(pos, rmin, rmax, nparams)
end end
nparams.spread = nparams.spread or vector.from_number(r*5) nparams.spread = nparams.spread or vector.from_number(r*5)
local pos = {x=math.random(-30000, 30000), y=math.random(-30000, 30000), z=math.random(-30000, 30000)}
local map = minetest.get_perlin_map(nparams, vector.from_number(r+r+1)):get3dMap_flat(pos) local map = minetest.get_perlin_map(nparams, vector.from_number(r+r+1)):get3dMap_flat(pos)
local id = 1 local id = 1
local bare_maxdist = rmax*rmax local bare_maxdist = rmax*rmax
local bare_mindist = rmin*rmin local bare_mindist = rmin*rmin
local maxdist = math.sqrt(bare_maxdist)
local mindist = math.sqrt(bare_mindist) local mindist = math.sqrt(bare_mindist)
local dist_diff = maxdist-mindist local dist_diff = math.sqrt(bare_maxdist)-mindist
mindist = mindist/dist_diff mindist = mindist/dist_diff
local pval_min, pval_max local pval_min, pval_max
@ -459,8 +458,7 @@ function funcs.explosion_perlin(pos, rmin, rmax, nparams)
end end
if add then if add then
local np={x=x, y=y, z=z} tab[n] = {{x=x, y=y, z=z}, pval, distdiv}
tab[n] = {np, pval, distdiv}
n = n+1 n = n+1
end end
id = id+1 id = id+1