ending()
{
cost = 0; //Change this to how much you want the buyable ending to cost
ending_trig = getent("ending_trig","targetname");
ending_trig SetCursorHint("HINT_NOICON");
ending_trig sethintstring ("Press &&1 to end the game [Cost: " + cost + "]"); //Change the stuff in "" to what you want the text to say that the players see, the %%1 indicates the players "use" button
while(1)
	{
ending_trig waittill("trigger",player);
		if( player.score >= cost )
		{
                player maps\_zombiemode_score::minus_to_player_score( cost );
                level notify( "end_game" );
		}
	}
}

thread ending();