Minetest-WorldEditAdditions/worldeditadditions_commands/commands/fillcaves.lua

local wea_c = worldeditadditions_core
local Vector3 = wea_c.Vector3

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worldeditadditions_core.register_command("fillcaves", {
	params = "[<node_name>]",
	description = "Fills in all airlike nodes beneath the first non-airlike node detected in each column.",
	privs = { worldedit = true },
	require_pos = 2,
	parse = function (params_text)
		if params_text == "" then
			params_text = "stone"
		end
		local replace_node = worldedit.normalize_nodename(params_text)
		if not replace_node then
			return false, "Error: Invalid node name."
		end
		
		return true, replace_node
	end,
	nodes_needed = function(name)
		return worldedit.volume(worldedit.pos1[name], worldedit.pos2[name])
	end,
	func = function(name, replace_node)
		local start_time = wea_c.get_ms_time()
		local pos1, pos2 = Vector3.sort(worldedit.pos1[name], worldedit.pos2[name])
		
		local success, stats = worldeditadditions.fillcaves(
			pos1, pos2,
			replace_node
		)
		if not success then return success, stats end
		
		local time_taken = wea_c.get_ms_time() - start_time
		
		minetest.log("action", name .. " used //fillcaves at "..pos1.." - "..pos2..", replacing "..stats.replaced.." nodes in "..time_taken.."s")
		return true, stats.replaced.." nodes replaced in "..wea_c.format.human_time(time_taken)
	end
})