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Add version signature to packet data (#223)

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jascotty2 2023-03-23 16:01:46 -05:00 committed by GitHub
parent 1b0f2660f9
commit 42d45b3a9e
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1 changed files with 20 additions and 0 deletions
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src/main/java/com/minelittlepony/api/pony/network/MsgPonyData.java
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@ -17,6 +17,10 @@ import java.util.function.Supplier;
public class MsgPonyData implements IPonyData { public class MsgPonyData implements IPonyData {
private final short API_IDENTIFIER = (short) 0xABCD;
// API version - increment this number before any time any data is added/removed/moved in the data stream
private final byte API_VERSION = 2;
private final Race race; private final Race race;
private final TailLength tailLength; private final TailLength tailLength;
private final TailShape tailShape; private final TailShape tailShape;
@ -41,6 +45,19 @@ public class MsgPonyData implements IPonyData {
} }
public MsgPonyData(PacketByteBuf buffer) { public MsgPonyData(PacketByteBuf buffer) {
short data = buffer.readShort();
if (data != API_IDENTIFIER || buffer.readByte() != API_VERSION) {
race = null;
tailLength = null;
tailShape = null;
gender = null;
size = null;
glowColor = 0;
noSkin = true;
wearables = null;
wearableColor = 0;
return;
}
race = buffer.readEnumConstant(Race.class); race = buffer.readEnumConstant(Race.class);
tailLength = buffer.readEnumConstant(TailLength.class); tailLength = buffer.readEnumConstant(TailLength.class);
tailShape = buffer.readEnumConstant(TailShape.class); tailShape = buffer.readEnumConstant(TailShape.class);
@ -70,6 +87,9 @@ public class MsgPonyData implements IPonyData {
} }
public PacketByteBuf toBuffer(PacketByteBuf buffer) { public PacketByteBuf toBuffer(PacketByteBuf buffer) {
buffer.writeByte((API_IDENTIFIER & 0xFF00) >> 8);
buffer.writeByte(API_IDENTIFIER & 0x00FF);
buffer.writeByte(API_VERSION);
buffer.writeEnumConstant(race); buffer.writeEnumConstant(race);
buffer.writeEnumConstant(tailLength); buffer.writeEnumConstant(tailLength);
buffer.writeEnumConstant(tailShape); buffer.writeEnumConstant(tailShape);