Add simple rules mod

mods/rules/init.lua

@@ -0,0 +1,96 @@
+-- Rules slide from agreerules
+
+rules = {}
+function rules.show(player)
+	local msgs = {
+		"Welcome to Capture the Flag!",
+		"Developed and hosted by rubenwardy.",
+		"Moderators: Kpenguin, Thomas-S, Dragonop,",
+		"            stormchaser3000, Calinou.",
+		"    tip: use /vote to skip to the next round",
+		",By playing on this server you agree to these rules:",
+		"1. Be nice. eg: No (excessive or bad) swearing",
+		"2. No dating.",
+		"3. Don't be a cheater. No hacked clients.",
+		"4. Don't be a traitor. Don't:",
+		"    a. Dig blocks in your base to make it less secure or",
+		"       to trap team mates on purpuse.",
+		"    b. Help the other team.",
+		"5. Don't impersonate other community members",
+		"Failure to follow these rules may result in a kick or ban",
+		"     (temp or permanent) depending on severity."}
+
+	local fs = ""
+	for _, line in pairs(msgs) do
+		if fs ~= "" then
+			fs = fs .. ","
+		end
+		fs = fs .. minetest.formspec_escape(line)
+	end
+
+
+	fs = "size[8,8]textlist[0.1,0.1;7.8,6;msg;" .. fs .. "]"
+	if minetest.check_player_privs(player:get_player_name(), { interact = true }) then
+		fs = fs .. "button_exit[0.5,6;7,2;yes;Okay]"
+	else
+		local yes = minetest.formspec_escape("Yes, let me play!")
+		local no = minetest.formspec_escape("No, get me out of here!")
+
+		fs = fs .. "button_exit[0.5,6;3.5,2;no;" .. no .. "]"
+		fs = fs .. "button_exit[4,6;3.5,2;yes;" .. yes .. "]"
+	end
+
+	minetest.show_formspec(player:get_player_name(), "rules:rules", fs)
+end
+
+minetest.register_chatcommand("rules", {
+	func = function(name, param)
+		if param ~= "" and
+				minetest.check_player_privs(name, { kick = true }) then
+			name = param
+		end
+
+		local player = minetest.get_player_by_name(name)
+		if player then
+			rules.show(player)
+			return true, "Rules shown."
+		else
+			return false, "Player " .. name .. " does not exist or is not online"
+		end
+	end
+})
+
+minetest.register_on_joinplayer(function(player)
+	if not minetest.check_player_privs(player:get_player_name(), { interact = true }) then
+		rules.show(player)
+	end
+end)
+
+minetest.register_on_player_receive_fields(function(player, form, fields)
+	if form ~= "rules:rules" then
+		return
+	end
+
+	local name = player:get_player_name()
+	if minetest.check_player_privs(name, { interact = true }) then
+		return true
+	end
+
+	if fields.msg then
+		return true
+	elseif not fields.yes or fields.no then
+		minetest.kick_player(name,
+			"You need to agree to the rules to play on this server. " ..
+			"Please rejoin and confirm another time.")
+		return true
+	end
+
+	local privs = minetest.get_player_privs(name)
+	privs.shout = true
+	privs.interact = true
+	minetest.set_player_privs(name, privs)
+
+	minetest.chat_send_player(name, "Welcome "..name.."! You have now permission to play!")
+
+	return true
+end)