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Wuzzy 2020-06-03 19:57:42 +02:00
commit 5dab09c874
1 changed files with 165 additions and 48 deletions

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@ -4,6 +4,13 @@
local mg_name = minetest.get_mapgen_setting("mg_name")
local OAK_TREE_ID = 1
local DARK_OAK_TREE_ID = 2
local SPRUCE_TREE_ID = 3
local ACACIA_TREE_ID = 4
local JUNGLE_TREE_ID = 5
local BIRCH_TREE_ID = 6
minetest.register_abm({
label = "Lava cooling",
nodenames = {"group:lava"},
@ -221,7 +228,97 @@ local function air_leaf(leaftype)
end
end
function mcl_core.generate_tree(pos, tree_type, two_by_two)
-- Check if a node stops a tree from growing. Torches, plants, wood, tree,
-- leaves and dirt does not affect tree growth.
function node_stops_growth(node)
if node.name == 'air' then
return false
end
def = minetest.registered_nodes[node.name]
if not def then
return true
end
groups = def.groups
if not groups then
return true
end
if groups.plant or groups.torch or groups.dirt or groups.tree
or groups.bark or groups.leaves or groups.wood then
return false
end
return true
end
-- Check if a tree can grow at position. The width is the width to check
-- around the tree. A width of 3 and height of 5 will check a 3x3 area, 5
-- nodes above the sapling. If any walkable node other than dirt, wood or
-- leaves occurs in those blocks the tree cannot grow.
function check_growth_width(pos, width, height)
-- Huge tree (with even width to check) will check one more node in
-- positive x and y directions.
neg_space = math.min((width - 1) / 2)
pos_space = math.max((width - 1) / 2)
for x = -neg_space, pos_space do
for z = -neg_space, pos_space do
for y = 1, height do
local np = vector.new(
pos.x + x,
pos.y + y,
pos.z + z)
if node_stops_growth(minetest.get_node(np)) then
return false
end
end
end
end
return true
end
-- Check if a tree with id can grow at a position. Options is a table of flags
-- for varieties of trees. The 'two_by_two' option is used to check if there is
-- room to generate huge trees for spruce and jungle. The 'balloon' option is
-- used to check if there is room to generate a balloon tree for oak.
function check_tree_growth(pos, tree_id, options)
local two_by_two = options and options.two_by_two
local balloon = options and options.balloon
if tree_id == OAK_TREE_ID then
if balloon then
return check_growth_width(pos, 7, 11)
else
return check_growth_width(pos, 3, 5)
end
elseif tree_id == BIRCH_TREE_ID then
return check_growth_width(pos, 3, 6)
elseif tree_id == SPRUCE_TREE_ID then
if two_by_two then
return check_growth_width(pos, 6, 20)
else
return check_growth_width(pos, 5, 11)
end
elseif tree_id == JUNGLE_TREE_ID then
if two_by_two then
return check_growth_width(pos, 8, 23)
else
return check_growth_width(pos, 3, 8)
end
elseif tree_id == ACACIA_TREE_ID then
return check_growth_width(pos, 7, 8)
elseif tree_id == DARK_OAK_TREE_ID and two_by_two then
return check_growth_width(pos, 4, 7)
end
return false
end
-- Generates a tree with a type. Options is a table of flags for varieties of
-- trees. The 'two_by_two' option is used by jungle and spruce trees to
-- generate huge trees. The 'balloon' option is used by oak to generate a balloon
-- oak tree.
function mcl_core.generate_tree(pos, tree_type, options)
pos.y = pos.y-1
local nodename = minetest.get_node(pos).name
@ -231,15 +328,22 @@ function mcl_core.generate_tree(pos, tree_type, two_by_two)
end
local node
if tree_type == nil or tree_type == 1 then
local two_by_two = options and options.two_by_two
local balloon = options and options.balloon
if tree_type == nil or tree_type == OAK_TREE_ID then
if mg_name == "v6" then
mcl_core.generate_v6_oak_tree(pos)
else
mcl_core.generate_oak_tree(pos)
if balloon then
mcl_core.generate_balloon_oak_tree(pos)
else
mcl_core.generate_oak_tree(pos)
end
end
elseif tree_type == 2 and two_by_two then
elseif tree_type == DARK_OAK_TREE_ID then
mcl_core.generate_dark_oak_tree(pos)
elseif tree_type == 3 then
elseif tree_type == SPRUCE_TREE_ID then
if two_by_two then
mcl_core.generate_huge_spruce_tree(pos)
else
@ -249,9 +353,9 @@ function mcl_core.generate_tree(pos, tree_type, two_by_two)
mcl_core.generate_spruce_tree(pos)
end
end
elseif tree_type == 4 then
elseif tree_type == ACACIA_TREE_ID then
mcl_core.generate_acacia_tree(pos)
elseif tree_type == 5 then
elseif tree_type == JUNGLE_TREE_ID then
if two_by_two then
mcl_core.generate_huge_jungle_tree(pos)
else
@ -261,7 +365,7 @@ function mcl_core.generate_tree(pos, tree_type, two_by_two)
mcl_core.generate_jungle_tree(pos)
end
end
elseif tree_type == 6 then
elseif tree_type == BIRCH_TREE_ID then
mcl_core.generate_birch_tree(pos)
end
end
@ -331,37 +435,36 @@ function mcl_core.generate_v6_oak_tree(pos)
end
end
-- Oak
function mcl_core.generate_oak_tree(pos)
local r = math.random(1, 12)
-- Ballon Oak
function mcl_core.generate_balloon_oak_tree(pos)
local path
local offset
-- Balloon oak
if r == 1 then
local s = math.random(1, 12)
if s == 1 then
-- Small balloon oak
path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_balloon.mts"
offset = { x = -2, y = -1, z = -2 }
else
-- Large balloon oak
local t = math.random(1, 4)
path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_large_"..t..".mts"
if t == 1 or t == 3 then
offset = { x = -3, y = -1, z = -3 }
elseif t == 2 or t == 4 then
offset = { x = -4, y = -1, z = -4 }
end
end
-- Classic oak
else
path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_classic.mts"
local s = math.random(1, 12)
if s == 1 then
-- Small balloon oak
path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_balloon.mts"
offset = { x = -2, y = -1, z = -2 }
else
-- Large balloon oak
local t = math.random(1, 4)
path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_large_"..t..".mts"
if t == 1 or t == 3 then
offset = { x = -3, y = -1, z = -3 }
elseif t == 2 or t == 4 then
offset = { x = -4, y = -1, z = -4 }
end
end
minetest.place_schematic(vector.add(pos, offset), path, "random", nil, false)
end
-- Oak
function mcl_core.generate_oak_tree(pos)
local path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_classic.mts"
local offset = { x = -2, y = -1, z = -2 }
minetest.place_schematic(vector.add(pos, offset), path, "random", nil, false)
end
-- Birch
function mcl_core.generate_birch_tree(pos)
local path = minetest.get_modpath("mcl_core") ..
@ -833,41 +936,55 @@ local sapling_grow_action = function(tree_id, soil_needed, one_by_one, two_by_tw
local s8 = is_sapling(p8, sapling)
local s9 = is_sapling(p9, sapling)
-- In a 9×9 field there are 4 possible 2×2 squares. We check them all.
if s2 and s3 and s4 then
if s2 and s3 and s4 and check_tree_growth(pos, tree_id, { two_by_two = true }) then
-- Success: Remove saplings and place tree
minetest.remove_node(pos)
minetest.remove_node(p2)
minetest.remove_node(p3)
minetest.remove_node(p4)
mcl_core.generate_tree(pos, tree_id, true)
mcl_core.generate_tree(pos, tree_id, { two_by_two = true })
return
elseif s3 and s5 and s6 then
elseif s3 and s5 and s6 and check_tree_growth(p6, tree_id, { two_by_two = true }) then
minetest.remove_node(pos)
minetest.remove_node(p3)
minetest.remove_node(p5)
minetest.remove_node(p6)
mcl_core.generate_tree(p6, tree_id, true)
mcl_core.generate_tree(p6, tree_id, { two_by_two = true })
return
elseif s6 and s7 and s8 then
elseif s6 and s7 and s8 and check_tree_growth(p7, tree_id, { two_by_two = true }) then
minetest.remove_node(pos)
minetest.remove_node(p6)
minetest.remove_node(p7)
minetest.remove_node(p8)
mcl_core.generate_tree(p7, tree_id, true)
mcl_core.generate_tree(p7, tree_id, { two_by_two = true })
return
elseif s2 and s8 and s9 then
elseif s2 and s8 and s9 and check_tree_growth(p8, tree_id, { two_by_two = true }) then
minetest.remove_node(pos)
minetest.remove_node(p2)
minetest.remove_node(p8)
minetest.remove_node(p9)
mcl_core.generate_tree(p8, tree_id, true)
mcl_core.generate_tree(p8, tree_id, { two_by_two = true })
return
end
end
if one_by_one and tree_id == OAK_TREE_ID then
-- There is a chance that this tree wants to grow as a balloon oak
if math.random(1, 12) == 1 then
-- Check if there is room for that
if check_tree_growth(pos, tree_id, { balloon = true }) then
minetest.set_node(pos, {name="air"})
mcl_core.generate_tree(pos, tree_id, { balloon = true })
return
end
end
end
-- If this sapling can grow alone
if one_by_one then
if one_by_one and check_tree_growth(pos, tree_id) then
-- Single sapling
minetest.set_node(pos, {name="air"})
local r = math.random(1, 12)
mcl_core.generate_tree(pos, tree_id)
return
end
@ -878,12 +995,12 @@ local sapling_grow_action = function(tree_id, soil_needed, one_by_one, two_by_tw
end
end
local grow_oak = sapling_grow_action(1, 1, true, false)
local grow_dark_oak = sapling_grow_action(2, 2, false, true, "mcl_core:darksapling")
local grow_jungle_tree = sapling_grow_action(5, 1, true, true, "mcl_core:junglesapling")
local grow_acacia = sapling_grow_action(4, 2, true, false)
local grow_spruce = sapling_grow_action(3, 1, true, true, "mcl_core:sprucesapling")
local grow_birch = sapling_grow_action(6, 1, true, false)
local grow_oak = sapling_grow_action(OAK_TREE_ID, 1, true, false)
local grow_dark_oak = sapling_grow_action(DARK_OAK_TREE_ID, 2, false, true, "mcl_core:darksapling")
local grow_jungle_tree = sapling_grow_action(JUNGLE_TREE_ID, 1, true, true, "mcl_core:junglesapling")
local grow_acacia = sapling_grow_action(ACACIA_TREE_ID, 2, true, false)
local grow_spruce = sapling_grow_action(SPRUCE_TREE_ID, 1, true, true, "mcl_core:sprucesapling")
local grow_birch = sapling_grow_action(BIRCH_TREE_ID, 1, true, false)
-- Attempts to grow the sapling at the specified position
-- pos: Position