capturetheflag/mods/pvp/antisabotage/init.lua

-- Code by Apelta. Mutelated by Lone_Wolf. Mutelated again by Apelta.
antisabotage = {}

function antisabotage.is_sabotage(pos, oldnode, digger) -- used for paxel
	local dname = digger:get_player_name()

	for _, player in pairs(minetest.get_connected_players()) do
		local name = player:get_player_name()

		if name ~= dname and ctf.players[name].team == ctf.players[dname].team then
			local player_pos = player:get_pos()

			if math.floor(player_pos.y) == pos.y and vector.distance(player_pos, pos) <= 1.5 then
				minetest.set_node(pos, oldnode)

				-- Remove all node drops
				for _, item in pairs(minetest.get_node_drops(oldnode)) do
					digger:get_inventory():remove_item("main", ItemStack(item))
				end

				minetest.chat_send_player(dname, "You can't mine blocks under your teammates!")
				return true
			end
		end
	end
end

minetest.register_on_dignode(function(pos, oldnode, digger)
	if not digger:is_player() then return end

	antisabotage.is_sabotage(pos, oldnode, digger)
end)