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Added random-number-based rarity control

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Vanessa Ezekowitz 2013-01-20 12:01:07 -05:00
parent b41cf5570c
commit 5abcd9034e
2 changed files with 4 additions and 0 deletions
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3
API.txt
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@ -128,6 +128,9 @@ biome = {
avoid_radius = num, -- [*] how much distance to leave between
the object to be added and the objects
to be avoided.
rarity = num, -- how rare should this tree be in its biome?
Larger values more rare, determined by
math.random(1,100) > this
seed_diff = num, -- perlin seed-diff value. Defaults to 0,
which causes the function to inherit the
global value of 329.

1
plants_lib/init.lua
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@ -74,6 +74,7 @@ function plantslib:search_for_surfaces(minp, maxp, biome, funct_or_model)
and noise2 >= biome.temp_max
and (biome.ncount == nil or table.getn(minetest.env:find_nodes_in_area({x=pos.x-1, y=pos.y, z=pos.z-1}, {x=pos.x+1, y=pos.y, z=pos.z+1}, biome.neighbors)) > biome.ncount)
and (biome.near_nodes == nil or table.getn(minetest.env:find_nodes_in_area({x=pos.x-biome.near_nodes_size, y=pos.y-1, z=pos.z-biome.near_nodes_size}, {x=pos.x+biome.near_nodes_size, y=pos.y+1, z=pos.z+biome.near_nodes_size}, biome.near_nodes)) >= biome.near_nodes_count)
and math.random(1,100) > biome.rarity
then
table.insert(in_biome_nodes, pos)
num_in_biome_nodes = num_in_biome_nodes + 1