forked from mtcontrib/biome_lib
5148cca1b7
in favor of more normal "." notation. In the process, I have renamed a few functions in favor of more meaningful names (see API.txt), and provided "compatibility shims" for old mods where needed, with warnings.
77 lines
2.3 KiB
Lua
77 lines
2.3 KiB
Lua
local time_scale = ...
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-- The growing ABM
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function biome_lib.check_surface(name, nodes)
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if not nodes then return true end
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if type(nodes) == "string" then return nodes == name end
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if nodes.set and nodes[name] then
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return true
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else
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for _, n in ipairs(nodes) do
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if name == n then return true end
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end
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end
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return false
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end
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function biome_lib.update_plant(opts)
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local options = opts
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options.height_limit = options.height_limit or 5
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options.ground_nodes = options.ground_nodes or biome_lib.default_ground_nodes
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options.grow_nodes = options.grow_nodes or biome_lib.default_grow_nodes
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options.seed_diff = options.seed_diff or 0
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local n
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if type(options.grow_plant) == "table" then
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n = "multi: "..options.grow_plant[1]..", ..."
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else
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n = options.grow_plant
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end
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options.label = options.label or "biome_lib.update_plant(): "..n
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if options.grow_delay*time_scale >= 1 then
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options.interval = options.grow_delay*time_scale
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else
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options.interval = 1
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end
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minetest.register_abm({
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nodenames = { options.grow_plant },
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interval = options.interval,
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chance = options.grow_chance,
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label = options.label,
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action = function(pos, node, active_object_count, active_object_count_wider)
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local p_top = {x=pos.x, y=pos.y+1, z=pos.z}
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local p_bot = {x=pos.x, y=pos.y-1, z=pos.z}
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local n_top = minetest.get_node(p_top)
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local n_bot = minetest.get_node(p_bot)
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local root_node = minetest.get_node({x=pos.x, y=pos.y-options.height_limit, z=pos.z})
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local walldir = nil
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if options.need_wall and options.verticals_list then
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walldir = biome_lib.find_adjacent_wall(p_top, options.verticals_list, options.choose_random_wall)
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end
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if biome_lib.default_grow_through_nodes[n_top.name]
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and (not options.need_wall or (options.need_wall and walldir)) then
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if options.grow_vertically and walldir then
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if biome_lib.search_downward(pos, options.height_limit, options.ground_nodes) then
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minetest.swap_node(p_top, { name = options.grow_plant, param2 = walldir})
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end
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elseif biome_lib.check_surface(n_bot.name, options.grow_nodes) then
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if not options.grow_result and not options.grow_function then
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minetest.swap_node(pos, biome_lib.air)
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else
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biome_lib.replace_plant(pos, options.grow_result, options.grow_function, options.facedir, options.seed_diff)
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end
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end
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end
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end
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})
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end
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