/** Handle a keep alive packet. */ public void handleKeepAlive(Packet0KeepAlive par1Packet0KeepAlive) { if (par1Packet0KeepAlive.randomId == keepAliveRandomID) { int i = (int) (System.nanoTime() / 0xf4240L - keepAliveTimeSent); playerEntity.field_71138_i = (playerEntity.field_71138_i * 3 + i) / 4; } }