SENG302/racevisionGame/src/main/java/visualiser/gameController/ControllerClient.java

package visualiser.gameController;

import network.BinaryMessageEncoder;
import network.MessageEncoders.RaceVisionByteEncoder;
import network.Messages.BoatAction;
import network.Messages.Enums.BoatActionEnum;
import network.Messages.Enums.MessageType;
import visualiser.gameController.Keys.ControlKey;

import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.net.SocketException;
import java.nio.ByteBuffer;

/**
 * Basic service for sending key presses to game server
 */
public class ControllerClient  {
    /**
     * Socket to server
     */
    Socket socket;

    /**
     * Output stream wrapper for socket to server
     */
    DataOutputStream outputStream;

    /**
     * Initialise controller client with live socket.
     * @param socket to server
     */
    public ControllerClient(Socket socket) {
        this.socket = socket;

        try {
            this.outputStream = new DataOutputStream(socket.getOutputStream());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * Send a keypress to server
     * @param key to send
     * @throws IOException if socket write fails
     */
    public void sendKey(ControlKey key) throws IOException {
        BoatActionEnum protocolCode = key.getProtocolCode();
        if(protocolCode != BoatActionEnum.NOT_A_STATUS) {

            byte[] bytes = new byte[4];
            ByteBuffer.wrap(bytes).putInt(protocolCode.getValue());
            BoatActionEnum boatActionEnum = BoatActionEnum.fromByte(bytes[3]);

            BoatAction boatAction = new BoatAction(boatActionEnum);

            byte[] encodedBoatAction = RaceVisionByteEncoder.boatActionMessage(boatAction);

            BinaryMessageEncoder binaryMessage = new BinaryMessageEncoder(MessageType.BOATACTION, System.currentTimeMillis(), 0,
                    (short) encodedBoatAction.length, encodedBoatAction);

            System.out.println("Sending out key: " + boatActionEnum);
            outputStream.write(binaryMessage.getFullMessage());
        }
    }
}