Merge branch 'treecheck'
This commit is contained in:
commit
13b941fdbf
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@ -4,6 +4,13 @@
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local mg_name = minetest.get_mapgen_setting("mg_name")
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local OAK_TREE_ID = 1
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local DARK_OAK_TREE_ID = 2
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local SPRUCE_TREE_ID = 3
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local ACACIA_TREE_ID = 4
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local JUNGLE_TREE_ID = 5
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local BIRCH_TREE_ID = 6
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minetest.register_abm({
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label = "Lava cooling",
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nodenames = {"group:lava"},
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@ -221,7 +228,97 @@ local function air_leaf(leaftype)
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end
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end
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function mcl_core.generate_tree(pos, tree_type, two_by_two)
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-- Check if a node stops a tree from growing. Torches, plants, wood, tree,
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-- leaves and dirt does not affect tree growth.
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function node_stops_growth(node)
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if node.name == 'air' then
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return false
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end
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def = minetest.registered_nodes[node.name]
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if not def then
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return true
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end
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groups = def.groups
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if not groups then
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return true
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end
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if groups.plant or groups.torch or groups.dirt or groups.tree
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or groups.bark or groups.leaves or groups.wood then
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return false
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end
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return true
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end
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-- Check if a tree can grow at position. The width is the width to check
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-- around the tree. A width of 3 and height of 5 will check a 3x3 area, 5
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-- nodes above the sapling. If any walkable node other than dirt, wood or
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-- leaves occurs in those blocks the tree cannot grow.
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function check_growth_width(pos, width, height)
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-- Huge tree (with even width to check) will check one more node in
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-- positive x and y directions.
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neg_space = math.min((width - 1) / 2)
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pos_space = math.max((width - 1) / 2)
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for x = -neg_space, pos_space do
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for z = -neg_space, pos_space do
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for y = 1, height do
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local np = vector.new(
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pos.x + x,
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pos.y + y,
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pos.z + z)
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if node_stops_growth(minetest.get_node(np)) then
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return false
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end
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end
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end
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end
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return true
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end
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-- Check if a tree with id can grow at a position. Options is a table of flags
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-- for varieties of trees. The 'two_by_two' option is used to check if there is
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-- room to generate huge trees for spruce and jungle. The 'balloon' option is
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-- used to check if there is room to generate a balloon tree for oak.
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function check_tree_growth(pos, tree_id, options)
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local two_by_two = options and options.two_by_two
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local balloon = options and options.balloon
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if tree_id == OAK_TREE_ID then
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if balloon then
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return check_growth_width(pos, 7, 11)
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else
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return check_growth_width(pos, 3, 5)
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end
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elseif tree_id == BIRCH_TREE_ID then
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return check_growth_width(pos, 3, 6)
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elseif tree_id == SPRUCE_TREE_ID then
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if two_by_two then
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return check_growth_width(pos, 6, 20)
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else
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return check_growth_width(pos, 5, 11)
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end
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elseif tree_id == JUNGLE_TREE_ID then
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if two_by_two then
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return check_growth_width(pos, 8, 23)
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else
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return check_growth_width(pos, 3, 8)
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end
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elseif tree_id == ACACIA_TREE_ID then
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return check_growth_width(pos, 7, 8)
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elseif tree_id == DARK_OAK_TREE_ID and two_by_two then
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return check_growth_width(pos, 4, 7)
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end
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return false
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end
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-- Generates a tree with a type. Options is a table of flags for varieties of
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-- trees. The 'two_by_two' option is used by jungle and spruce trees to
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-- generate huge trees. The 'balloon' option is used by oak to generate a balloon
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-- oak tree.
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function mcl_core.generate_tree(pos, tree_type, options)
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pos.y = pos.y-1
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local nodename = minetest.get_node(pos).name
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@ -231,15 +328,22 @@ function mcl_core.generate_tree(pos, tree_type, two_by_two)
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end
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local node
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if tree_type == nil or tree_type == 1 then
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local two_by_two = options and options.two_by_two
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local balloon = options and options.balloon
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if tree_type == nil or tree_type == OAK_TREE_ID then
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if mg_name == "v6" then
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mcl_core.generate_v6_oak_tree(pos)
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else
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mcl_core.generate_oak_tree(pos)
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if balloon then
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mcl_core.generate_balloon_oak_tree(pos)
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else
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mcl_core.generate_oak_tree(pos)
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end
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end
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elseif tree_type == 2 and two_by_two then
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elseif tree_type == DARK_OAK_TREE_ID then
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mcl_core.generate_dark_oak_tree(pos)
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elseif tree_type == 3 then
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elseif tree_type == SPRUCE_TREE_ID then
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if two_by_two then
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mcl_core.generate_huge_spruce_tree(pos)
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else
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@ -249,9 +353,9 @@ function mcl_core.generate_tree(pos, tree_type, two_by_two)
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mcl_core.generate_spruce_tree(pos)
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end
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end
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elseif tree_type == 4 then
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elseif tree_type == ACACIA_TREE_ID then
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mcl_core.generate_acacia_tree(pos)
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elseif tree_type == 5 then
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elseif tree_type == JUNGLE_TREE_ID then
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if two_by_two then
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mcl_core.generate_huge_jungle_tree(pos)
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else
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@ -261,7 +365,7 @@ function mcl_core.generate_tree(pos, tree_type, two_by_two)
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mcl_core.generate_jungle_tree(pos)
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end
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end
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elseif tree_type == 6 then
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elseif tree_type == BIRCH_TREE_ID then
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mcl_core.generate_birch_tree(pos)
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end
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end
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@ -331,37 +435,36 @@ function mcl_core.generate_v6_oak_tree(pos)
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end
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end
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-- Oak
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function mcl_core.generate_oak_tree(pos)
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local r = math.random(1, 12)
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-- Ballon Oak
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function mcl_core.generate_balloon_oak_tree(pos)
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local path
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local offset
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-- Balloon oak
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if r == 1 then
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local s = math.random(1, 12)
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if s == 1 then
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-- Small balloon oak
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path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_balloon.mts"
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offset = { x = -2, y = -1, z = -2 }
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else
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-- Large balloon oak
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local t = math.random(1, 4)
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path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_large_"..t..".mts"
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if t == 1 or t == 3 then
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offset = { x = -3, y = -1, z = -3 }
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elseif t == 2 or t == 4 then
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offset = { x = -4, y = -1, z = -4 }
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end
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end
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-- Classic oak
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else
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path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_classic.mts"
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local s = math.random(1, 12)
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if s == 1 then
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-- Small balloon oak
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path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_balloon.mts"
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offset = { x = -2, y = -1, z = -2 }
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else
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-- Large balloon oak
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local t = math.random(1, 4)
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path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_large_"..t..".mts"
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if t == 1 or t == 3 then
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offset = { x = -3, y = -1, z = -3 }
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elseif t == 2 or t == 4 then
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offset = { x = -4, y = -1, z = -4 }
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end
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end
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minetest.place_schematic(vector.add(pos, offset), path, "random", nil, false)
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end
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-- Oak
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function mcl_core.generate_oak_tree(pos)
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local path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_classic.mts"
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local offset = { x = -2, y = -1, z = -2 }
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minetest.place_schematic(vector.add(pos, offset), path, "random", nil, false)
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end
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-- Birch
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function mcl_core.generate_birch_tree(pos)
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local path = minetest.get_modpath("mcl_core") ..
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@ -833,41 +936,55 @@ local sapling_grow_action = function(tree_id, soil_needed, one_by_one, two_by_tw
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local s8 = is_sapling(p8, sapling)
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local s9 = is_sapling(p9, sapling)
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-- In a 9×9 field there are 4 possible 2×2 squares. We check them all.
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if s2 and s3 and s4 then
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if s2 and s3 and s4 and check_tree_growth(pos, tree_id, { two_by_two = true }) then
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-- Success: Remove saplings and place tree
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minetest.remove_node(pos)
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minetest.remove_node(p2)
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minetest.remove_node(p3)
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minetest.remove_node(p4)
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mcl_core.generate_tree(pos, tree_id, true)
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mcl_core.generate_tree(pos, tree_id, { two_by_two = true })
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return
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elseif s3 and s5 and s6 then
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elseif s3 and s5 and s6 and check_tree_growth(p6, tree_id, { two_by_two = true }) then
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minetest.remove_node(pos)
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minetest.remove_node(p3)
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minetest.remove_node(p5)
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minetest.remove_node(p6)
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mcl_core.generate_tree(p6, tree_id, true)
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mcl_core.generate_tree(p6, tree_id, { two_by_two = true })
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return
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elseif s6 and s7 and s8 then
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elseif s6 and s7 and s8 and check_tree_growth(p7, tree_id, { two_by_two = true }) then
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minetest.remove_node(pos)
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minetest.remove_node(p6)
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minetest.remove_node(p7)
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minetest.remove_node(p8)
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mcl_core.generate_tree(p7, tree_id, true)
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mcl_core.generate_tree(p7, tree_id, { two_by_two = true })
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return
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elseif s2 and s8 and s9 then
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elseif s2 and s8 and s9 and check_tree_growth(p8, tree_id, { two_by_two = true }) then
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minetest.remove_node(pos)
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minetest.remove_node(p2)
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minetest.remove_node(p8)
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minetest.remove_node(p9)
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mcl_core.generate_tree(p8, tree_id, true)
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mcl_core.generate_tree(p8, tree_id, { two_by_two = true })
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return
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end
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end
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if one_by_one and tree_id == OAK_TREE_ID then
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-- There is a chance that this tree wants to grow as a balloon oak
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if math.random(1, 12) == 1 then
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-- Check if there is room for that
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if check_tree_growth(pos, tree_id, { balloon = true }) then
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minetest.set_node(pos, {name="air"})
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mcl_core.generate_tree(pos, tree_id, { balloon = true })
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return
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end
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end
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end
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-- If this sapling can grow alone
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if one_by_one then
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if one_by_one and check_tree_growth(pos, tree_id) then
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-- Single sapling
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minetest.set_node(pos, {name="air"})
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local r = math.random(1, 12)
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mcl_core.generate_tree(pos, tree_id)
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return
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end
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@ -878,12 +995,12 @@ local sapling_grow_action = function(tree_id, soil_needed, one_by_one, two_by_tw
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end
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end
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local grow_oak = sapling_grow_action(1, 1, true, false)
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local grow_dark_oak = sapling_grow_action(2, 2, false, true, "mcl_core:darksapling")
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local grow_jungle_tree = sapling_grow_action(5, 1, true, true, "mcl_core:junglesapling")
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local grow_acacia = sapling_grow_action(4, 2, true, false)
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local grow_spruce = sapling_grow_action(3, 1, true, true, "mcl_core:sprucesapling")
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local grow_birch = sapling_grow_action(6, 1, true, false)
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local grow_oak = sapling_grow_action(OAK_TREE_ID, 1, true, false)
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local grow_dark_oak = sapling_grow_action(DARK_OAK_TREE_ID, 2, false, true, "mcl_core:darksapling")
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local grow_jungle_tree = sapling_grow_action(JUNGLE_TREE_ID, 1, true, true, "mcl_core:junglesapling")
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local grow_acacia = sapling_grow_action(ACACIA_TREE_ID, 2, true, false)
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local grow_spruce = sapling_grow_action(SPRUCE_TREE_ID, 1, true, true, "mcl_core:sprucesapling")
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local grow_birch = sapling_grow_action(BIRCH_TREE_ID, 1, true, false)
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-- Attempts to grow the sapling at the specified position
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-- pos: Position
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