farming/mapgen.lua

103 lines
2.7 KiB
Lua

-- Generate new foods on map
function farming.mgv6ongen(minp, maxp, seed)
if maxp.y < 2 and minp.y > 0 then return end
local perlin1 = minetest.get_perlin(329, 3, 0.6, 100)
-- Assume X and Z lengths are equal
local divlen = 16
local divs = (maxp.x-minp.x)/divlen+1
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine plant amount from perlin noise
local plant_amount = math.floor(perlin1:get2d({x=x0, y=z0}) ^ 3 * 9)
-- Find random positions for plant
local pr = PseudoRandom(seed+420)
for i=0,plant_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
-- Find ground level (0...15)
local ground_y = nil
for y=30,0,-1 do
if minetest.get_node({x=x,y=y,z=z}).name ~= "air" then
ground_y = y
break
end
end
if ground_y then
local p = {x=x,y=ground_y+1,z=z}
local nn = minetest.get_node(p).name
-- Check if the node can be replaced
if minetest.registered_nodes[nn]
and minetest.registered_nodes[nn].buildable_to then
nn = minetest.get_node({x=x,y=ground_y,z=z}).name
-- If dirt with grass, add plant in various stages of maturity
if nn == "default:dirt_with_grass" then
local type = math.random(1,11)
local plant
if type == 1 and ground_y > 15 then
plant = "farming:potato_"..pr:next(3, 4)
elseif type == 2 then
plant = "farming:tomato_"..pr:next(7, 8)
elseif type == 3 then
plant = "farming:carrot_"..pr:next(7, 8)
elseif type == 4 then
plant = "farming:cucumber_4"
elseif type == 5 then
plant = "farming:corn_"..pr:next(7, 8)
elseif type == 6 and ground_y > 20 then
plant = "farming:coffee_5"
elseif type == 7 and minetest.find_node_near(p, 3, {"group:water"}) then
plant = "farming:melon_8"
elseif type == 8 and ground_y > 15 then
plant = "farming:pumpkin_8"
elseif type == 9 and ground_y > 5 then
plant = "farming:raspberry_4"
elseif type == 10 and ground_y > 10 then
plant = "farming:rhubarb_3"
elseif type == 11 and ground_y > 5 then
plant = "farming:blueberry_4"
end
-- Add plant
if plant then
minetest.set_node(p, {name=plant})
end
end
end
end
end
end
end
end
-- Enable in mapgen v6 only (disabled)
minetest.register_on_mapgen_init(function(mg_params)
--if mg_params.mgname == "v6" then
minetest.register_on_generated(farming.mgv6ongen)
--end
end)