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Now Loose Desert Rocks generate!

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This commit is contained in:
Eduardo Mezêncio 2015-09-15 18:33:09 -03:00
parent e37876c930
commit 9bcc83fbfc
1 changed files with 37 additions and 28 deletions
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65
init.lua
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@ -76,45 +76,54 @@ minetest.register_craft({
-- Map Generation
minetest.register_on_generated(function(minp, maxp, seed)
if maxp.y >= 0 and maxp.y < 200 then
math.randomseed(seed+minp.x+minp.z*666)
local perlin = minetest.get_perlin(666, 3, 0.6, 100)
local heightmap = minetest.get_mapgen_object("heightmap")
-- Assume X and Z lengths are equal
local chunk = (maxp.x-minp.x+1) -- Probably 80
local divs = 5
local divlen = chunk / divs -- 16, if chunk is 80
for divx = 0, divs - 1 do
for divz = 0, divs - 1 do
local x0 = minp.x + math.floor((divx)*divlen)
local z0 = minp.z + math.floor((divz)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen) - 1
local z1 = minp.z + math.floor((divz+1)*divlen) - 1
if maxp.y < 0 then return end
-- Determine amount of rocks from perlin noise
local amount = math.floor((perlin:get2d({x=x0, y=z0}) + 1) ^ 3)
math.randomseed(seed + minp.x + minp.z * 666)
local perlin = minetest.get_perlin(666, 3, 0.6, 100)
local heightmap = minetest.get_mapgen_object("heightmap")
local biomemap = minetest.get_mapgen_object("biomemap")
-- Find positions for rocks
for i=1,amount do
local target_x = math.random(x0, x1)
local target_z = math.random(z0, z1)
-- Assume X and Z lengths are equal
local chunk = (maxp.x-minp.x+1) -- Probably 80
local divs = 5
local divlen = chunk / divs -- 16, if chunk is 80
for divx = 0, divs - 1 do
for divz = 0, divs - 1 do
local x0 = minp.x + math.floor((divx) * divlen)
local z0 = minp.z + math.floor((divz) * divlen)
local x1 = minp.x + math.floor((divx+1) * divlen) - 1
local z1 = minp.z + math.floor((divz+1) * divlen) - 1
local target_y = heightmap[(target_x-minp.x) + (target_z-minp.z)*chunk + 1] + 1
-- Determine amount of rocks from perlin noise
local amount = math.floor((perlin:get2d({x=x0, y=z0}) + 1) ^ 3)
if target_y <= maxp.y and target_y >= minp.y then
local target_coord = {x=target_x, y=target_y, z=target_z}
local target_name = minetest.get_node(target_coord).name
-- Find positions for rocks
for i=1,amount do
local target_x = math.random(x0, x1)
local target_z = math.random(z0, z1)
local ground_y = heightmap[(target_x-minp.x) + (target_z-minp.z)*chunk + 1]
-- Check if the node can be replaced
if minetest.registered_nodes[target_name].buildable_to and
(minetest.get_item_group(target_name, "liquid") == 0) then
if ground_y < maxp.y and ground_y >= minp.y
and minetest.get_node({x=target_x, y=ground_y, z=target_z}).name ~= "air" then
-- I check if the node underneath is not air because apparently the ground level
-- provided by heightmap does not account for cave genetarion.
local target_coord = {x=target_x, y=ground_y + 1, z=target_z}
local target_name = minetest.get_node(target_coord).name
-- Check if the node can be replaced
if minetest.registered_nodes[target_name].buildable_to and
(minetest.get_item_group(target_name, "liquid") == 0) then
if biomemap[(target_x-minp.x) + (target_z-minp.z)*chunk + 1] == 15 then
minetest.set_node(target_coord,{name = "loose_rocks:loose_desert_rocks_"..math.random(1,rocks_variants),
param2 = math.random(0,3)})
else
minetest.set_node(target_coord,{name = "loose_rocks:loose_rocks_"..math.random(1,rocks_variants),
param2 = math.random(0,3)})
end
end
end
end
end
end
end
end)