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https://github.com/mt-mods/plantlife_modpack.git
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allow multiple nodes to be specified as a table in the
nodes_or_function_or_model field of the mapgen register call
This commit is contained in:
Vanessa Ezekowitz
parent
a60f89a8a2
commit
27430814a0
24
API.txt
24
API.txt
@ -238,12 +238,12 @@ checking is disabled. Same holds true for the nneighbors bit above that.
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=====
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plantslib:register_generate_plant(biome, node_or_function_or_treedef)
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plantslib:register_generate_plant(biome, nodes_or_function_or_treedef)
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To register an object to be spawned at mapgen time rather than via an ABM,
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call this function with two parameters: a table with your object's biome
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information, and a string or table describing what to do if the engine finds a
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suitable node (see below).
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information, and a string, function, or table describing what to do if the
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engine finds a suitable surface node (see below).
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The biome table contains quite a number of options, though there are fewer
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here than are available in the ABM-based spawner, as some stuff doesn't make
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@ -335,17 +335,25 @@ biome = {
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random_facedir = {table}, -- same as with the ABM spawner.
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}
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Regarding node_or_function_or_treedef, this must either be table with an
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L-Systems tree definition, or a string with a node or function name.
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Regarding nodes_or_function_or_treedef, this must either be a string naming
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a node to spawn, a table with a list of nodes to choose from, a table with an
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L-Systems tree definition, or a function.
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If you specified a string, the code will attempt to determine whether that
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string specifies a valid node name. If it does, that node will be placed on
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top of the target position directly (unless one of the other mapgen options
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directs the code to do otherwise).
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If you specified a table, the code assumes this table contains an L-Systems
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tree definition, then that definition will be passed directly to the
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spawn_tree() function along with the position to spawn the tree on.
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If you specified a table and there is no "axiom" field, the code assumes that
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it is a list of nodes. Simply name one node per entry in the list, e.g.
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{"default:junglegrass", "default:dry_shrub"} and so on, for as many nodes as
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you want to list. A random node from the list will be chosen each time the
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code goes to place a node.
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If you specified a table, and there *is* an "axiom" field, the code assumes
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that this table contains an L-Systems tree definition, which will be passed
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directly to the engine's spawn_tree() function along with the position on
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which to spawn the tree.
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You can also supply a function to be directly executed, which is given the
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current node position (the usual "pos" table format) as its sole argument. It
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@ -114,26 +114,26 @@ end
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-- register the list of surfaces to spawn stuff on, filtering out all duplicates.
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-- separate the items by air-checking or non-air-checking map eval methods
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function plantslib:register_generate_plant(biomedef, node_or_function_or_model)
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function plantslib:register_generate_plant(biomedef, nodes_or_function_or_model)
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-- if calling code passes an undefined node for a surface or
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-- as a node to be spawned, don't register an action for it.
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if type(node_or_function_or_model) == "string"
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and string.find(node_or_function_or_model, ":")
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and not minetest.registered_nodes[node_or_function_or_model] then
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plantslib:dbg("Warning: Ignored registration for undefined spawn node: "..dump(node_or_function_or_model))
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if type(nodes_or_function_or_model) == "string"
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and string.find(nodes_or_function_or_model, ":")
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and not minetest.registered_nodes[nodes_or_function_or_model] then
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plantslib:dbg("Warning: Ignored registration for undefined spawn node: "..dump(nodes_or_function_or_model))
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return
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end
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if type(node_or_function_or_model) == "string"
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and not string.find(node_or_function_or_model, ":") then
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plantslib:dbg("Warning: Registered function call using deprecated string method: "..dump(node_or_function_or_model))
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if type(nodes_or_function_or_model) == "string"
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and not string.find(nodes_or_function_or_model, ":") then
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plantslib:dbg("Warning: Registered function call using deprecated string method: "..dump(nodes_or_function_or_model))
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end
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if biomedef.check_air == false then
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plantslib:dbg("Register no-air-check mapgen hook: "..dump(node_or_function_or_model))
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plantslib.actions_list_noaircheck[#plantslib.actions_list_noaircheck + 1] = { biomedef, node_or_function_or_model }
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plantslib:dbg("Register no-air-check mapgen hook: "..dump(nodes_or_function_or_model))
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plantslib.actions_list_noaircheck[#plantslib.actions_list_noaircheck + 1] = { biomedef, nodes_or_function_or_model }
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local s = biomedef.surface
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if type(s) == "string" then
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if s and minetest.registered_nodes[s] then
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@ -156,8 +156,8 @@ function plantslib:register_generate_plant(biomedef, node_or_function_or_model)
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end
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end
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else
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plantslib:dbg("Register with-air-checking mapgen hook: "..dump(node_or_function_or_model))
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plantslib.actions_list[#plantslib.actions_list + 1] = { biomedef, node_or_function_or_model }
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plantslib:dbg("Register with-air-checking mapgen hook: "..dump(nodes_or_function_or_model))
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plantslib.actions_list[#plantslib.actions_list + 1] = { biomedef, nodes_or_function_or_model }
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local s = biomedef.surface
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if type(s) == "string" then
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if s and minetest.registered_nodes[s] then
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@ -209,7 +209,7 @@ function plantslib:generate_block_with_air_checking(minp, maxp, blockseed)
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for action = 1, #plantslib.actions_list do
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local biome = plantslib.actions_list[action][1]
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local node_or_function_or_model = plantslib.actions_list[action][2]
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local nodes_or_function_or_model = plantslib.actions_list[action][2]
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plantslib:set_defaults(biome)
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@ -280,27 +280,36 @@ function plantslib:generate_block_with_air_checking(minp, maxp, blockseed)
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minetest.remove_node(pos)
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end
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local objtype = type(node_or_function_or_model)
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local objtype = type(nodes_or_function_or_model)
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if objtype == "table" then
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plantslib:generate_tree(pos, node_or_function_or_model)
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if nodes_or_function_or_model.axiom then
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plantslib:generate_tree(pos, nodes_or_function_or_model)
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spawned = true
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elseif objtype == "string" and
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minetest.registered_nodes[node_or_function_or_model] then
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else
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local fdir = nil
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if biome.random_facedir then
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fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
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end
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minetest.set_node(p_top, { name = node_or_function_or_model, param2 = fdir })
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minetest.set_node(p_top, { name = nodes_or_function_or_model[math.random(#nodes_or_function_or_model)], param2 = fdir })
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spawned = true
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end
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elseif objtype == "string" and
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minetest.registered_nodes[nodes_or_function_or_model] then
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local fdir = nil
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if biome.random_facedir then
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fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
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end
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minetest.set_node(p_top, { name = nodes_or_function_or_model, param2 = fdir })
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spawned = true
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elseif objtype == "function" then
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node_or_function_or_model(pos)
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nodes_or_function_or_model(pos)
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spawned = true
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elseif objtype == "string" and pcall(loadstring(("return %s(...)"):
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format(node_or_function_or_model)),pos) then
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format(nodes_or_function_or_model)),pos) then
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spawned = true
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else
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plantslib:dbg("Warning: Ignored invalid definition for object "..dump(node_or_function_or_model).." that was pointed at {"..dump(pos).."}")
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plantslib:dbg("Warning: Ignored invalid definition for object "..dump(nodes_or_function_or_model).." that was pointed at {"..dump(pos).."}")
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end
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else
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tries = tries + 1
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@ -330,7 +339,7 @@ function plantslib:generate_block_no_air_check(minp, maxp, blockseed)
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for action = 1, #plantslib.actions_list_noaircheck do
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local biome = plantslib.actions_list_noaircheck[action][1]
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local node_or_function_or_model = plantslib.actions_list_noaircheck[action][2]
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local nodes_or_function_or_model = plantslib.actions_list_noaircheck[action][2]
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plantslib:set_defaults(biome)
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@ -400,27 +409,36 @@ function plantslib:generate_block_no_air_check(minp, maxp, blockseed)
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minetest.remove_node(pos)
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end
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local objtype = type(node_or_function_or_model)
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local objtype = type(nodes_or_function_or_model)
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if objtype == "table" then
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plantslib:generate_tree(pos, node_or_function_or_model)
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if nodes_or_function_or_model.axiom then
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plantslib:generate_tree(pos, nodes_or_function_or_model)
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spawned = true
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elseif objtype == "string" and
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minetest.registered_nodes[node_or_function_or_model] then
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else
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local fdir = nil
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if biome.random_facedir then
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fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
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end
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minetest.set_node(p_top, { name = node_or_function_or_model, param2 = fdir })
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minetest.set_node(p_top, { name = nodes_or_function_or_model[math.random(#nodes_or_function_or_model)], param2 = fdir })
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spawned = true
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end
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elseif objtype == "string" and
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minetest.registered_nodes[nodes_or_function_or_model] then
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local fdir = nil
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if biome.random_facedir then
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fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
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end
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minetest.set_node(p_top, { name = nodes_or_function_or_model, param2 = fdir })
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spawned = true
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elseif objtype == "function" then
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node_or_function_or_model(pos)
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nodes_or_function_or_model(pos)
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spawned = true
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elseif objtype == "string" and pcall(loadstring(("return %s(...)"):
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format(node_or_function_or_model)),pos) then
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format(nodes_or_function_or_model)),pos) then
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spawned = true
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else
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plantslib:dbg("Warning: Ignored invalid definition for object "..dump(node_or_function_or_model).." that was pointed at {"..dump(pos).."}")
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plantslib:dbg("Warning: Ignored invalid definition for object "..dump(nodes_or_function_or_model).." that was pointed at {"..dump(pos).."}")
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end
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else
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tries = tries + 1
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@ -666,14 +684,14 @@ end
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-- spawn_tree() on generate is routed through here so that other mods can hook
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-- into it.
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function plantslib:generate_tree(pos, node_or_function_or_model)
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minetest.spawn_tree(pos, node_or_function_or_model)
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function plantslib:generate_tree(pos, nodes_or_function_or_model)
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minetest.spawn_tree(pos, nodes_or_function_or_model)
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end
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-- and this one's for the call used in the growing code
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function plantslib:grow_tree(pos, node_or_function_or_model)
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minetest.spawn_tree(pos, node_or_function_or_model)
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function plantslib:grow_tree(pos, nodes_or_function_or_model)
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minetest.spawn_tree(pos, nodes_or_function_or_model)
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end
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-- Check for infinite stacks
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