-local c_air = minetest.get_content_id("air")
-local c_ignore = minetest.get_content_id("ignore")
-local c_tree = minetest.get_content_id("default:tree")
-local c_leaves = minetest.get_content_id("default:leaves")
-local c_apple = minetest.get_content_id("default:apple")
-
-function default.grow_tree(data, a, pos, is_apple_tree, seed)
- --[[
- NOTE: Tree-placing code is currently duplicated in the engine
- and in games that have saplings; both are deprecated but not
- replaced yet
- ]]--
- local pr = PseudoRandom(seed)
- local th = pr:next(4, 5)
- local x, y, z = pos.x, pos.y, pos.z
- for yy = y, y+th-1 do
- local vi = a:index(x, yy, z)
- if a:contains(x, yy, z) and (data[vi] == c_air or yy == y) then
- data[vi] = c_tree
- end
- end
- y = y+th-1 -- (x, y, z) is now last piece of trunk
- local leaves_a = VoxelArea:new{MinEdge={x=-2, y=-1, z=-2}, MaxEdge={x=2, y=2, z=2}}
- local leaves_buffer = {}
-
- -- Force leaves near the trunk
- local d = 1
- for xi = -d, d do
- for yi = -d, d do
- for zi = -d, d do
- leaves_buffer[leaves_a:index(xi, yi, zi)] = true
- end
- end
- end
-
- -- Add leaves randomly
- for iii = 1, 8 do
- local d = 1
- local xx = pr:next(leaves_a.MinEdge.x, leaves_a.MaxEdge.x - d)
- local yy = pr:next(leaves_a.MinEdge.y, leaves_a.MaxEdge.y - d)
- local zz = pr:next(leaves_a.MinEdge.z, leaves_a.MaxEdge.z - d)
-
- for xi = 0, d do
- for yi = 0, d do
- for zi = 0, d do
- leaves_buffer[leaves_a:index(xx+xi, yy+yi, zz+zi)] = true
- end
- end
- end
- end
-
- -- Add the leaves
- for xi = leaves_a.MinEdge.x, leaves_a.MaxEdge.x do
- for yi = leaves_a.MinEdge.y, leaves_a.MaxEdge.y do
- for zi = leaves_a.MinEdge.z, leaves_a.MaxEdge.z do
- if a:contains(x+xi, y+yi, z+zi) then
- local vi = a:index(x+xi, y+yi, z+zi)
- if data[vi] == c_air or data[vi] == c_ignore then
- if leaves_buffer[leaves_a:index(xi, yi, zi)] then
- if is_apple_tree and pr:next(1, 100) <= 10 then
- data[vi] = c_apple
- else
- data[vi] = c_leaves
- end
- end
- end
- end
- end
- end
- end
+--
+-- 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))
+ if minetest.get_mapgen_params().mgname == "v6" then
+ default.grow_tree(pos, random(1, 4) == 1)
+ else
+ default.grow_new_apple_tree(pos)
+ end
+ 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))
+ if minetest.get_mapgen_params().mgname == "v6" then
+ default.grow_jungle_tree(pos)
+ else
+ default.grow_new_jungle_tree(pos)
+ end
+ 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))
+ if minetest.get_mapgen_params().mgname == "v6" then
+ default.grow_pine_tree(pos)
+ else
+ default.grow_new_pine_tree(pos)
+ end
+ end
+})
+
+minetest.register_abm({
+ nodenames = {"default:acacia_sapling"},
+ interval = 13,
+ chance = 50,
+ action = function(pos, node)
+ if not can_grow(pos) then
+ return
+ end
+
+ minetest.log("action", "An acacia sapling grows into a tree at "..
+ minetest.pos_to_string(pos))
+ default.grow_new_acacia_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
-local c_jungletree = minetest.get_content_id("default:jungletree")
-local c_jungleleaves = minetest.get_content_id("default:jungleleaves")
-
-function default.grow_jungletree(data, a, pos, seed)
- --[[
- NOTE: Tree-placing code is currently duplicated in the engine
- and in games that have saplings; both are deprecated but not
- replaced yet
- ]]--
- local pr = PseudoRandom(seed)
- local x, y, z = pos.x, pos.y, pos.z
- for xi = -1, 1 do
- for zi = -1, 1 do
- if pr:next(1, 3) >= 2 then
- local vi1 = a:index(x+xi, y, z+zi)
- local vi2 = a:index(x+xi, y-1, z+zi)
- if a:contains(x+xi, y-1, z+zi) and data[vi2] == c_air then
- data[vi2] = c_jungletree
- elseif a:contains(x+xi, y, z+zi) and data[vi1] == c_air then
- data[vi1] = c_jungletree
- end
- end
- end
- end
-
- local th = pr:next(8, 12)
- for yy = y, y+th-1 do
- local vi = a:index(x, yy, z)
- if a:contains(x, yy, z) and (data[vi] == c_air or yy == y) then
- data[vi] = c_jungletree
- end
- end
- y = y+th-1 -- (x, y, z) is now last piece of trunk
- local leaves_a = VoxelArea:new{MinEdge={x=-3, y=-2, z=-3}, MaxEdge={x=3, y=2, z=3}}
- local leaves_buffer = {}
-
- -- Force leaves near the trunk
- local d = 1
- for xi = -d, d do
- for yi = -d, d do
- for zi = -d, d do
- leaves_buffer[leaves_a:index(xi, yi, zi)] = true
- end
- end
- end
-
- -- Add leaves randomly
- for iii = 1, 30 do
- local d = 1
- local xx = pr:next(leaves_a.MinEdge.x, leaves_a.MaxEdge.x - d)
- local yy = pr:next(leaves_a.MinEdge.y, leaves_a.MaxEdge.y - d)
- local zz = pr:next(leaves_a.MinEdge.z, leaves_a.MaxEdge.z - d)
-
- for xi = 0, d do
- for yi = 0, d do
- for zi = 0, d do
- leaves_buffer[leaves_a:index(xx+xi, yy+yi, zz+zi)] = true
- end
- end
- end
- end
-
- -- Add the leaves
- for xi = leaves_a.MinEdge.x, leaves_a.MaxEdge.x do
- for yi = leaves_a.MinEdge.y, leaves_a.MaxEdge.y do
- for zi = leaves_a.MinEdge.z, leaves_a.MaxEdge.z do
- if a:contains(x+xi, y+yi, z+zi) then
- local vi = a:index(x+xi, y+yi, z+zi)
- if data[vi] == c_air or data[vi] == c_ignore then
- if leaves_buffer[leaves_a:index(xi, yi, zi)] then
- data[vi] = c_jungleleaves
- 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
+
+-- New tree
+
+function default.grow_new_apple_tree(pos)
+ local path = minetest.get_modpath("default") .. "/schematics/apple_tree.mts"
+ minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
+ path, 0, nil, false)
+end
+
+-- New jungle tree
+
+function default.grow_new_jungle_tree(pos)
+ local path = minetest.get_modpath("default") .. "/schematics/jungle_tree.mts"
+ minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
+ path, 0, nil, false)
+end
+
+-- New pine tree
+
+function default.grow_new_pine_tree(pos)
+ local path = minetest.get_modpath("default") .. "/schematics/pine_tree.mts"
+ minetest.place_schematic({x = pos.x - 2, y = pos.y - 1, z = pos.z - 2},
+ path, 0, nil, false)
+end
+
+-- New acacia tree
+
+function default.grow_new_acacia_tree(pos)
+ local path = minetest.get_modpath("default") .. "/schematics/acacia_tree.mts"
+ minetest.place_schematic({x = pos.x - 4, y = pos.y - 1, z = pos.z - 4},
+ path, random, nil, false)
end
projects / oweals / minetest_game.git / blobdiff