mirror of
https://github.com/minetest/minetest_game.git
synced 2024-12-23 14:42:27 +01:00
349 lines
8.8 KiB
Lua
349 lines
8.8 KiB
Lua
--
|
|
-- Grow trees
|
|
--
|
|
|
|
local random = math.random
|
|
|
|
local function can_grow(pos)
|
|
local node_under = minetest.get_node_or_nil({x = pos.x, y = pos.y - 1, z = pos.z})
|
|
if not node_under then
|
|
return false
|
|
end
|
|
local name_under = node_under.name
|
|
local is_soil = minetest.get_item_group(name_under, "soil")
|
|
if is_soil == 0 then
|
|
return false
|
|
end
|
|
return true
|
|
end
|
|
|
|
-- Sapling ABMs
|
|
|
|
minetest.register_abm({
|
|
nodenames = {"default:sapling"},
|
|
interval = 10,
|
|
chance = 50,
|
|
action = function(pos, node)
|
|
if not can_grow(pos) then
|
|
return
|
|
end
|
|
|
|
minetest.log("action", "A sapling grows into a tree at "..
|
|
minetest.pos_to_string(pos))
|
|
default.grow_tree(pos, random(1, 4) == 1)
|
|
end
|
|
})
|
|
|
|
minetest.register_abm({
|
|
nodenames = {"default:junglesapling"},
|
|
interval = 11,
|
|
chance = 50,
|
|
action = function(pos, node)
|
|
if not can_grow(pos) then
|
|
return
|
|
end
|
|
|
|
minetest.log("action", "A jungle sapling grows into a tree at "..
|
|
minetest.pos_to_string(pos))
|
|
default.grow_jungle_tree(pos)
|
|
end
|
|
})
|
|
|
|
minetest.register_abm({
|
|
nodenames = {"default:pine_sapling"},
|
|
interval = 12,
|
|
chance = 50,
|
|
action = function(pos, node)
|
|
if not can_grow(pos) then
|
|
return
|
|
end
|
|
|
|
minetest.log("action", "A pine sapling grows into a tree at "..
|
|
minetest.pos_to_string(pos))
|
|
default.grow_pine_tree(pos)
|
|
end
|
|
})
|
|
|
|
-- Appletree, jungletree function
|
|
|
|
local function add_trunk_and_leaves(data, a, pos, tree_cid, leaves_cid,
|
|
height, size, iters, is_apple_tree)
|
|
local x, y, z = pos.x, pos.y, pos.z
|
|
local c_air = minetest.get_content_id("air")
|
|
local c_ignore = minetest.get_content_id("ignore")
|
|
local c_apple = minetest.get_content_id("default:apple")
|
|
|
|
-- Trunk
|
|
data[a:index(x, y, z)] = tree_cid -- Force-place lowest trunk node to replace sapling
|
|
for yy = y + 1, y + height - 1 do
|
|
local vi = a:index(x, yy, z)
|
|
local node_id = data[vi]
|
|
if node_id == c_air or node_id == c_ignore or node_id == leaves_cid then
|
|
data[vi] = tree_cid
|
|
end
|
|
end
|
|
|
|
-- Force leaves near the trunk
|
|
for z_dist = -1, 1 do
|
|
for y_dist = -size, 1 do
|
|
local vi = a:index(x - 1, y + height + y_dist, z + z_dist)
|
|
for x_dist = -1, 1 do
|
|
if data[vi] == c_air or data[vi] == c_ignore then
|
|
if is_apple_tree and random(1, 8) == 1 then
|
|
data[vi] = c_apple
|
|
else
|
|
data[vi] = leaves_cid
|
|
end
|
|
end
|
|
vi = vi + 1
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Randomly add leaves in 2x2x2 clusters.
|
|
for i = 1, iters do
|
|
local clust_x = x + random(-size, size - 1)
|
|
local clust_y = y + height + random(-size, 0)
|
|
local clust_z = z + random(-size, size - 1)
|
|
|
|
for xi = 0, 1 do
|
|
for yi = 0, 1 do
|
|
for zi = 0, 1 do
|
|
local vi = a:index(clust_x + xi, clust_y + yi, clust_z + zi)
|
|
if data[vi] == c_air or data[vi] == c_ignore then
|
|
if is_apple_tree and random(1, 8) == 1 then
|
|
data[vi] = c_apple
|
|
else
|
|
data[vi] = leaves_cid
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Appletree
|
|
|
|
function default.grow_tree(pos, is_apple_tree, bad)
|
|
--[[
|
|
NOTE: Tree-placing code is currently duplicated in the engine
|
|
and in games that have saplings; both are deprecated but not
|
|
replaced yet
|
|
--]]
|
|
if bad then
|
|
error("Deprecated use of default.grow_tree")
|
|
end
|
|
|
|
local x, y, z = pos.x, pos.y, pos.z
|
|
local height = random(4, 5)
|
|
local c_tree = minetest.get_content_id("default:tree")
|
|
local c_leaves = minetest.get_content_id("default:leaves")
|
|
|
|
local vm = minetest.get_voxel_manip()
|
|
local minp, maxp = vm:read_from_map(
|
|
{x = pos.x - 2, y = pos.y, z = pos.z - 2},
|
|
{x = pos.x + 2, y = pos.y + height + 1, z = pos.z + 2}
|
|
)
|
|
local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
|
|
local data = vm:get_data()
|
|
|
|
add_trunk_and_leaves(data, a, pos, c_tree, c_leaves, height, 2, 8, is_apple_tree)
|
|
|
|
vm:set_data(data)
|
|
vm:write_to_map()
|
|
vm:update_map()
|
|
end
|
|
|
|
-- Jungletree
|
|
|
|
function default.grow_jungle_tree(pos, bad)
|
|
--[[
|
|
NOTE: Jungletree-placing code is currently duplicated in the engine
|
|
and in games that have saplings; both are deprecated but not
|
|
replaced yet
|
|
--]]
|
|
if bad then
|
|
error("Deprecated use of default.grow_jungle_tree")
|
|
end
|
|
|
|
local x, y, z = pos.x, pos.y, pos.z
|
|
local height = random(8, 12)
|
|
local c_air = minetest.get_content_id("air")
|
|
local c_ignore = minetest.get_content_id("ignore")
|
|
local c_jungletree = minetest.get_content_id("default:jungletree")
|
|
local c_jungleleaves = minetest.get_content_id("default:jungleleaves")
|
|
|
|
local vm = minetest.get_voxel_manip()
|
|
local minp, maxp = vm:read_from_map(
|
|
{x = pos.x - 3, y = pos.y - 1, z = pos.z - 3},
|
|
{x = pos.x + 3, y = pos.y + height + 1, z = pos.z + 3}
|
|
)
|
|
local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
|
|
local data = vm:get_data()
|
|
|
|
add_trunk_and_leaves(data, a, pos, c_jungletree, c_jungleleaves, height, 3, 30, false)
|
|
|
|
-- Roots
|
|
for z_dist = -1, 1 do
|
|
local vi_1 = a:index(x - 1, y - 1, z + z_dist)
|
|
local vi_2 = a:index(x - 1, y, z + z_dist)
|
|
for x_dist = -1, 1 do
|
|
if random(1, 3) >= 2 then
|
|
if data[vi_1] == c_air or data[vi_1] == c_ignore then
|
|
data[vi_1] = c_jungletree
|
|
elseif data[vi_2] == c_air or data[vi_2] == c_ignore then
|
|
data[vi_2] = c_jungletree
|
|
end
|
|
end
|
|
vi_1 = vi_1 + 1
|
|
vi_2 = vi_2 + 1
|
|
end
|
|
end
|
|
|
|
vm:set_data(data)
|
|
vm:write_to_map()
|
|
vm:update_map()
|
|
end
|
|
|
|
-- Pinetree from mg mapgen mod, design by sfan5, pointy top added by paramat
|
|
|
|
local function add_pine_needles(data, vi, c_air, c_ignore, c_snow, c_pine_needles)
|
|
local node_id = data[vi]
|
|
if node_id == c_air or node_id == c_ignore or node_id == c_snow then
|
|
data[vi] = c_pine_needles
|
|
end
|
|
end
|
|
|
|
local function add_snow(data, vi, c_air, c_ignore, c_snow)
|
|
local node_id = data[vi]
|
|
if node_id == c_air or node_id == c_ignore then
|
|
data[vi] = c_snow
|
|
end
|
|
end
|
|
|
|
function default.grow_pine_tree(pos)
|
|
local x, y, z = pos.x, pos.y, pos.z
|
|
local maxy = y + random(9, 13) -- Trunk top
|
|
|
|
local c_air = minetest.get_content_id("air")
|
|
local c_ignore = minetest.get_content_id("ignore")
|
|
local c_pinetree = minetest.get_content_id("default:pinetree")
|
|
local c_pine_needles = minetest.get_content_id("default:pine_needles")
|
|
local c_snow = minetest.get_content_id("default:snow")
|
|
local c_snowblock = minetest.get_content_id("default:snowblock")
|
|
local c_dirtsnow = minetest.get_content_id("default:dirt_with_snow")
|
|
|
|
local vm = minetest.get_voxel_manip()
|
|
local minp, maxp = vm:read_from_map(
|
|
{x = x - 3, y = y - 1, z = z - 3},
|
|
{x = x + 3, y = maxy + 3, z = z + 3}
|
|
)
|
|
local a = VoxelArea:new({MinEdge = minp, MaxEdge = maxp})
|
|
local data = vm:get_data()
|
|
|
|
-- Scan for snow nodes near sapling to enable snow on branches
|
|
local snow = false
|
|
for yy = y - 1, y + 1 do
|
|
for zz = z - 1, z + 1 do
|
|
local vi = a:index(x - 1, yy, zz)
|
|
for xx = x - 1, x + 1 do
|
|
local nodid = data[vi]
|
|
if nodid == c_snow or nodid == c_snowblock or nodid == c_dirtsnow then
|
|
snow = true
|
|
end
|
|
vi = vi + 1
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Upper branches layer
|
|
local dev = 3
|
|
for yy = maxy - 1, maxy + 1 do
|
|
for zz = z - dev, z + dev do
|
|
local vi = a:index(x - dev, yy, zz)
|
|
local via = a:index(x - dev, yy + 1, zz)
|
|
for xx = x - dev, x + dev do
|
|
if random() < 0.95 - dev * 0.05 then
|
|
add_pine_needles(data, vi, c_air, c_ignore, c_snow,
|
|
c_pine_needles)
|
|
if snow then
|
|
add_snow(data, via, c_air, c_ignore, c_snow)
|
|
end
|
|
end
|
|
vi = vi + 1
|
|
via = via + 1
|
|
end
|
|
end
|
|
dev = dev - 1
|
|
end
|
|
|
|
-- Centre top nodes
|
|
add_pine_needles(data, a:index(x, maxy + 1, z), c_air, c_ignore, c_snow,
|
|
c_pine_needles)
|
|
add_pine_needles(data, a:index(x, maxy + 2, z), c_air, c_ignore, c_snow,
|
|
c_pine_needles) -- Paramat added a pointy top node
|
|
if snow then
|
|
add_snow(data, a:index(x, maxy + 3, z), c_air, c_ignore, c_snow)
|
|
end
|
|
|
|
-- Lower branches layer
|
|
local my = 0
|
|
for i = 1, 20 do -- Random 2x2 squares of needles
|
|
local xi = x + random(-3, 2)
|
|
local yy = maxy + random(-6, -5)
|
|
local zi = z + random(-3, 2)
|
|
if yy > my then
|
|
my = yy
|
|
end
|
|
for zz = zi, zi+1 do
|
|
local vi = a:index(xi, yy, zz)
|
|
local via = a:index(xi, yy + 1, zz)
|
|
for xx = xi, xi + 1 do
|
|
add_pine_needles(data, vi, c_air, c_ignore, c_snow,
|
|
c_pine_needles)
|
|
if snow then
|
|
add_snow(data, via, c_air, c_ignore, c_snow)
|
|
end
|
|
vi = vi + 1
|
|
via = via + 1
|
|
end
|
|
end
|
|
end
|
|
|
|
local dev = 2
|
|
for yy = my + 1, my + 2 do
|
|
for zz = z - dev, z + dev do
|
|
local vi = a:index(x - dev, yy, zz)
|
|
local via = a:index(x - dev, yy + 1, zz)
|
|
for xx = x - dev, x + dev do
|
|
if random() < 0.95 - dev * 0.05 then
|
|
add_pine_needles(data, vi, c_air, c_ignore, c_snow,
|
|
c_pine_needles)
|
|
if snow then
|
|
add_snow(data, via, c_air, c_ignore, c_snow)
|
|
end
|
|
end
|
|
vi = vi + 1
|
|
via = via + 1
|
|
end
|
|
end
|
|
dev = dev - 1
|
|
end
|
|
|
|
-- Trunk
|
|
data[a:index(x, y, z)] = c_pinetree -- Force-place lowest trunk node to replace sapling
|
|
for yy = y + 1, maxy do
|
|
local vi = a:index(x, yy, z)
|
|
local node_id = data[vi]
|
|
if node_id == c_air or node_id == c_ignore or node_id == c_pine_needles then
|
|
data[vi] = c_pinetree
|
|
end
|
|
end
|
|
|
|
vm:set_data(data)
|
|
vm:write_to_map()
|
|
vm:update_map()
|
|
end
|
|
|