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Merge pull request #3 from HeroOfTheWinds/master

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New ore thinning distribution, small optimizations
This commit is contained in:
Kilarin 2015-03-05 07:56:13 -06:00
commit 84b1adc77c
2 changed files with 10 additions and 5 deletions
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6
mods/fracturerift/init.lua
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@ -74,8 +74,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
for z = z0, z1 do -- for each xy plane progressing northwards
for y = y0, y1 do -- for each x row progressing upwards
vi = area:index(x0, y, z) --This accesses the node at a given position. vi is incremented inside the loop for greater performance.
for x = x0, x1 do -- for each node do
local vi = area:index(x, y, z) -- This accesses the node at a given position
--local vi = area:index(x, y, z) -- This accesses the node at a given position
local grad = math.abs(x / fracrift_edge) * (10^(math.abs(x / fracrift_edge)) / 10) -- Density gradient. This controls how much to offset the noise value as x approaches the walls of the chasm.
@ -102,13 +103,14 @@ minetest.register_on_generated(function(minp, maxp, seed)
end -- if x > -fracrift_edge and x < fracrift_edge
if x == -fracrift_edge or x == fracrift_edge then -- x is on edge
if data[vi] == c_water and math.random() < fracrift_waterfallchance and (math.abs(nvals_walls[nixyz]) - grad) > 0 then
if data[vi] == c_water and math.random() < fracrift_waterfallchance and (math.abs(nvals_walls[nixyz]) - grad) > -0.1 then
data[vi]=fracrift_material
changed=true
end -- change water to stone on edge
end -- if x == -fracrift_edge or x == fracrift_edge
nixyz = nixyz + 1
vi = vi + 1
end -- end 'x' loop
end -- end 'y' loop

7
mods/orethinning/init.lua
View File

@ -93,7 +93,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
if dist > orethin_maxdist then
dist=orethin_maxdist
end --orethin_maxdist
local adj=(dist/orethin_maxdist)
local adj= (orethin_maxdist/(1+(orethin_maxdist-1)* math.exp(-.0075*dist))) / orethin_maxdist --(dist/orethin_maxdist)--original code.
--New code makes ore thin until about 1000 nodes away, and then it rapidly gets more common. To adjust distribution, change the value currently at -.0075. Closer to 0 is more thinning, greater negative numbers are less thinning.
if adj < orethin_mindensity then
adj=orethin_mindensity --because we don't want spawn completely bare
end --min adj
@ -110,8 +111,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
for z = z0, z1 do -- for each xy plane progressing northwards
for y = y0, y1 do -- for each x row progressing upwards
--local vi = area:index(x0, y, z) -- This accesses the node at a given position
local vi = area:index(x0, y, z) --Switched to incrementing form for slight speed increase.
for x = x0, x1 do -- for each node do
local vi = area:index(x, y, z) -- This accesses the node at a given position
--local vi = area:index(x, y, z) -- This accesses the node at a given position
--x>0 is east, so we exclude ores in the west only list
--cant search arrays that way when the elements are numbers.
--if x > 0 and orethin_westlist.data[vi] then
@ -139,6 +141,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
changed=true
end
end -- end ore existence check
vi = vi + 1 --increment the LVM index
end -- end 'x' loop
end -- end 'y' loop
end -- end 'z' loop