fracture/functions.lua

266 lines
6.5 KiB
Lua

function fracture_appletree(x, y, z, area, data)
local c_tree = minetest.get_content_id("default:tree")
local c_apple = minetest.get_content_id("default:apple")
local c_appleaf = minetest.get_content_id("fracture:appleleaf")
for j = -2, 4 do
if j == 3 or j == 4 then
for i = -2, 2 do
for k = -2, 2 do
local vi = area:index(x + i, y + j, z + k)
if math.random(64) == 2 then
data[vi] = c_apple
elseif math.random(5) ~= 2 then
data[vi] = c_appleaf
end
end
end
elseif j == 2 then
for i = -1, 1 do
for k = -1, 1 do
if math.abs(i) + math.abs(k) == 2 then
local vi = area:index(x + i, y + j, z + k)
data[vi] = c_tree
end
end
end
else
local vi = area:index(x, y + j, z)
data[vi] = c_tree
end
end
end
function fracture_snowypine(x, y, z, area, data)
local c_pinetree = minetest.get_content_id("fracture:pinetree")
local c_needles = minetest.get_content_id("fracture:needles")
local c_snowblock = minetest.get_content_id("default:snowblock")
for j = -2, 8 do
if j == 3 or j == 6 then
for i = -2, 2 do
for k = -2, 2 do
if math.abs(i) == 2 or math.abs(k) == 2 then
if math.random(7) ~= 2 then
local vi = area:index(x + i, y + j, z + k)
data[vi] = c_needles
local via = area:index(x + i, y + j + 1, z + k)
data[via] = c_snowblock
end
end
end
end
elseif j == 4 then
for i = -1, 1 do
for k = -1, 1 do
if not (i == 0 and j == 0) then
if math.random(11) ~= 2 then
local vi = area:index(x + i, y + j, z + k)
data[vi] = c_needles
local via = area:index(x + i, y + j + 1, z + k)
data[via] = c_snowblock
end
end
end
end
elseif j == 7 then
for i = -1, 1 do
for k = -1, 1 do
if not (i == 0 and j == 0) then
local vi = area:index(x + i, y + j, z + k)
data[vi] = c_needles
local via = area:index(x + i, y + j + 1, z + k)
data[via] = c_needles
local viaa = area:index(x + i, y + j + 2, z + k)
data[viaa] = c_snowblock
end
end
end
end
local vi = area:index(x, y + j, z)
data[vi] = c_pinetree
end
local vi = area:index(x, y + 9, z)
local via = area:index(x, y + 10, z)
local viaa = area:index(x, y + 11, z)
data[vi] = c_needles
data[via] = c_needles
data[viaa] = c_snowblock
end
function fracture_cactus(x, y, z, area, data)
local c_cactus = minetest.get_content_id("fracture:cactus")
for j = -2, 4 do
for i = -2, 2 do
if i == 0 or j == 2 or (j == 3 and math.abs(i) == 2) then
local vi = area:index(x + i, y + j, z)
data[vi] = c_cactus
end
end
end
end
function fracture_flower(data, vi)
local c_danwhi = minetest.get_content_id("flowers:dandelion_white")
local c_danyel = minetest.get_content_id("flowers:dandelion_yellow")
local c_rose = minetest.get_content_id("flowers:rose")
local c_tulip = minetest.get_content_id("flowers:tulip")
local c_geranium = minetest.get_content_id("flowers:geranium")
local c_viola = minetest.get_content_id("flowers:viola")
local rand = math.random(6)
if rand == 1 then
data[vi] = c_danwhi
elseif rand == 2 then
data[vi] = c_rose
elseif rand == 3 then
data[vi] = c_tulip
elseif rand == 4 then
data[vi] = c_danyel
elseif rand == 5 then
data[vi] = c_geranium
else
data[vi] = c_viola
end
end
-- Singlenode option
local SINGLENODE = true
if SINGLENODE then
minetest.register_on_mapgen_init(function(mgparams)
minetest.set_mapgen_params({mgname="singlenode", water_level=-32000})
end)
-- Spawn player. Dependant on chunk size = 5 mapblocks
function spawnplayer(player)
local DENOFF = -0.4
local TSTONE = 0.02
local PSCA = 8 -- Player scatter from world centre in chunks (80 nodes).
local xsp
local ysp
local zsp
local np_terrain = {
offset = 0,
scale = 1,
spread = {x=384, y=128, z=384},
seed = 593,
octaves = 5,
persist = 0.67
}
local np_terralt = {
offset = 0,
scale = 1,
spread = {x=237, y=79, z=237},
seed = 593,
octaves = 5,
persist = 0.67
}
for chunk = 1, 64 do
print ("[fracture] searching for spawn "..chunk)
local x0 = 80 * math.random(-PSCA, PSCA) - 32
local z0 = 80 * math.random(-PSCA, PSCA) - 32
local y0 = 80 * math.random(-PSCA, PSCA) - 32
local x1 = x0 + 79
local z1 = z0 + 79
local y1 = y0 + 79
local sidelen = 80
local chulens = {x=sidelen, y=sidelen, z=sidelen}
local minposxyz = {x=x0, y=y0, z=z0}
local nvals_terrain = minetest.get_perlin_map(np_terrain, chulens):get3dMap_flat(minposxyz)
local nvals_terralt = minetest.get_perlin_map(np_terralt, chulens):get3dMap_flat(minposxyz)
local nixyz = 1
local stable = {}
for z = z0, z1 do
for y = y0, y1 do
for x = x0, x1 do
local si = x - x0 + 1
local n_terrain = nvals_terrain[nixyz]
local n_terralt = nvals_terralt[nixyz]
local density = (n_terrain + n_terralt) * 0.5 + DENOFF
if density >= TSTONE then
stable[si] = true
elseif stable[si] and density < 0 then
ysp = y + 1
xsp = x
zsp = z
break
end
nixyz = nixyz + 1
end
if ysp then
break
end
end
if ysp then
break
end
end
if ysp then
break
end
end
print ("[fracture] spawn player ("..xsp.." "..ysp.." "..zsp..")")
player:setpos({x=xsp, y=ysp, z=zsp})
end
minetest.register_on_newplayer(function(player)
spawnplayer(player)
end)
minetest.register_on_respawnplayer(function(player)
spawnplayer(player)
return true
end)
end
-- ABM
-- Appletree sapling
minetest.register_abm({
nodenames = {"fracture:appling"},
interval = 31,
chance = 5,
action = function(pos, node)
local x = pos.x
local y = pos.y
local z = pos.z
local vm = minetest.get_voxel_manip()
local pos1 = {x=x-2, y=y-2, z=z-2}
local pos2 = {x=x+2, y=y+4, z=z+2}
local emin, emax = vm:read_from_map(pos1, pos2)
local area = VoxelArea:new({MinEdge=emin, MaxEdge=emax})
local data = vm:get_data()
fracture_appletree(x, y, z, area, data)
vm:set_data(data)
vm:write_to_map()
vm:update_map()
end,
})
-- Pine sapling
minetest.register_abm({
nodenames = {"fracture:pineling"},
interval = 2,
chance = 5,
action = function(pos, node)
local x = pos.x
local y = pos.y
local z = pos.z
local vm = minetest.get_voxel_manip()
local pos1 = {x=x-2, y=y-2, z=z-2}
local pos2 = {x=x+2, y=y+11, z=z+2}
local emin, emax = vm:read_from_map(pos1, pos2)
local area = VoxelArea:new({MinEdge=emin, MaxEdge=emax})
local data = vm:get_data()
fracture_snowypine(x, y, z, area, data)
vm:set_data(data)
vm:write_to_map()
vm:update_map()
end,
})