-- prevent clients from flooding others off the server by rapidly changing team/class
-- author reyalp@gmail.com
-- version 1 - Fri Jun  9 16:12:38 PST 2006
--
-- Configure using these three variables
minchangetime = 1000 -- one change per second is always OK
maxchanges = 6 -- 6 per second is briefly OK, 
				-- need this fairly high since class scripts use the team command
				-- and people might cycle through a bunch before they get the class they want
			-- lua numbers are float, so they get some reduction even if they don't wait a the full time
bantime = 300 -- seconds to ban, adjust to taste

-- debug
--[[
function printf(...)
        et.G_Print(string.format(unpack(arg)))
end
--]]

limittable = {}


function et_ClientCommand( clientNum, command )
-- debug
--	printf("ClientCommand %d %s\n",clientNum,command)
	if string.lower(command) == "team" then
		if not limittable[clientNum] then
			limittable[clientNum] = {
				["lastchange"] = leveltime,
				["count"] = 1,
			}
		else 
			-- less typing
			local rec = limittable[clientNum]
			rec.count = rec.count + 1
			local deltatime = leveltime - rec.lastchange
			-- shouldn't ever happen
			if deltatime < 0 then
				rec.lastchange = leveltime
				rec.count = 1
				return 0
			end
			-- lua numbers are float, so they get some reduction even if they don't wait a the full time
			local reduce = deltatime / minchangetime
-- debug
--			printf("count %f lastchange %d delta %d reduce %f\n",rec.count, rec.lastchange, deltatime, reduce)
			if rec.count >= reduce then
				rec.count = rec.count - reduce
			else
				rec.count = 0
			end
			if rec.count > maxchanges then
				et.trap_DropClient( clientNum, "too many team changes", bantime )
				-- don't count against the next sucker to get this slot
				rec.count = 0
			end
			rec.lastchange = leveltime
		end
	end
	return 0
end

function et_RunFrame(ltime)
	leveltime = ltime
end