Added Boat location messages to the mock streaming data interface

- Added static methods to convert between binary packed lat/longs and floating point numbers Tags: #story[829]
2026-05-09 06:18:44 +00:00 · 2017-04-26 22:38:39 +12:00
parent 1f8f1f0f86
commit bc31987f96
6 changed files with 214 additions and 1 deletions
@@ -0,0 +1,62 @@
+package seng302.server.messages;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+
+public class MarkRoundingMessage extends Message{
+    private final long MESSAGE_VERSION_NUMBER = 1;
+    private final int MESSAGE_SIZE = 21;
+
+    private long time;
+    private long ackNumber;
+    private long raceId;
+    private long sourceId;
+    private RoundingBoatStatus boatStatus;
+    private RoundingSide roundingSide;
+    private long markId;
+
+    /**
+     * This message is sent when a boat passes a mark, start line, or finish line
+     * The purpose of this is to record the time when yachts cross marks
+     */
+    public MarkRoundingMessage(int ackNumber, int raceId, int sourceId, RoundingBoatStatus roundingBoatStatus,
+                               RoundingSide roundingSide, int markId){
+        this.time = System.currentTimeMillis() / 1000L;
+        this.ackNumber = ackNumber;
+        this.raceId = raceId;
+        this.sourceId = sourceId;
+        this.boatStatus = roundingBoatStatus;
+        this.roundingSide = roundingSide;
+        this.markId = markId;
+
+        setHeader(new Header(MessageType.MARK_ROUNDING, 1, (short) getSize()));
+    }
+
+    @Override
+    public int getSize() {
+        return MESSAGE_SIZE;
+    }
+
+    @Override
+    public void send(DataOutputStream outputStream) {
+        allocateBuffer();
+        writeHeaderToBuffer();
+
+        putByte((byte) MESSAGE_VERSION_NUMBER);
+        putInt((int) time, 6);
+        putInt((int) ackNumber, 2);
+        putInt((int) raceId, 4);
+        putInt((int) sourceId, 4);
+        putByte((byte) boatStatus.getCode());
+        putByte((byte) roundingSide.getCode());
+        putByte((byte) markId);
+
+        writeCRC();
+
+        try {
+            outputStream.write(getBuffer().array());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}