lwcreative_tools/paste_replace.lua at master · mt-historical/lwcreative_tools · GitHub

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local utils = ...
local S = utils.S


local function paste_replace (pos, map, dir, player, param2)
	local action = utils.new_action (player:get_player_name ())

	if action then
		for y = 0, map.leny - 1 do
			for z = 0, map.lenz - 1 do
				for x = 0, map.lenx - 1 do
					local node_pos = vector.add (pos, utils.rotate_to_dir ({ x = x, y = y, z = z }, dir))
					local node = utils.get_far_node (node_pos)

					if node then
						if not action:place_node_from_data (node_pos, map[y][z][x], (param2 - map.param2 + 4) % 4,
																		player) then
							utils.commit_action (action)
							utils.undo_action (player:get_player_name ())

							return false
						end
					end

					utils.long_process.expire (0.08)
				end
			end
		end

		utils.commit_action (action)

		return true
	end

	return false
end


local function paste_replace_runner (pos, dir, player_name, param2)
	local player = minetest.get_player_by_name (player_name)

	if player then
		local map = utils.get_player_copy_buffer (player)

		if map then
			paste_replace (pos, map, dir, player, param2)

			minetest.log ("action", string.format ("lwcreative_tools paste replace by %s at %s",
																player_name,
																minetest.pos_to_string (pos, 0)))
		else
			utils.player_error_message (player_name, "No copy buffer!")
		end
	end
end


local function on_place (itemstack, placer, pointed_thing)
	if not utils.is_creative (placer) or
		not utils.check_privs (placer) then

		return itemstack
	end

	local count = itemstack:get_count ()
	local look_dir, _, under = utils.get_place_stats (placer, pointed_thing)

	if look_dir.x ~= 0 or look_dir.z ~= 0 then
		look_dir.y = 0
		local param2 = minetest.dir_to_facedir (vector.normalize (look_dir))

		if count and look_dir then
			local on_rightclick = utils.get_on_rightclick (under, placer)
			if on_rightclick then
				return on_rightclick (under, utils.get_far_node (under), placer, itemstack, pointed_thing)
			end

			if not utils.add_long_process (placer:get_player_name (), paste_replace_runner, nil,
													 under, look_dir, placer:get_player_name (), param2) then
				utils.player_error_message (placer:get_player_name (), "An operation is already in progress!")
			end
		end
	end

	return itemstack
end


minetest.register_craftitem ("lwcreative_tools:paste_replace", {
	description = S("Paste Replace"),
	short_description = S("Paste Replace"),
	groups = { },
	inventory_image = "lwcreative_tools_paste_replace.png",
	wield_image = "lwcreative_tools_paste_replace.png",
	stack_max = 1,
	on_place = on_place,
})