public class WorldTickEvents {
    int gameTick = 0;
    @SubscribeEvent
    public void onWorldUpdate(TickEvent.WorldTickEvent e)
    {
        gameTick++;
        for(EntityPlayer player : e.world.playerEntities)
        {
            if(gameTick > 100)
            {
                if(((PlayerPlaceSatanicAltarIEEP)player.getExtendedProperties(PlayerPlaceSatanicAltarIEEP.EXT_PROP_NAME)).getAltarCooldown() > 0)
                {
                    int cooldown = ((PlayerPlaceSatanicAltarIEEP)player.getExtendedProperties(PlayerPlaceSatanicAltarIEEP.EXT_PROP_NAME)).getAltarCooldown();
                    ((PlayerPlaceSatanicAltarIEEP)player.getExtendedProperties(PlayerPlaceSatanicAltarIEEP.EXT_PROP_NAME)).setAltarCooldown(cooldown - 1);
                }
                gameTick = 0;
            }
        }
    }
}