Fix SpawnPacketPosition Reflection

SpigotCore_8/src/de/steamwar/core/BountifulWrapper8.java

@@ -66,10 +66,10 @@ public class BountifulWrapper8 implements BountifulWrapper.IBountifulWrapper {
     }
 
     @Override
-    public BountifulWrapper.PositionSetter getPositionSetter(Class<?> packetClass, int fieldOffset8) {
-        Reflection.FieldAccessor<Integer> posX = Reflection.getField(packetClass, int.class, fieldOffset8);
-        Reflection.FieldAccessor<Integer> posY = Reflection.getField(packetClass, int.class, fieldOffset8+1);
-        Reflection.FieldAccessor<Integer> posZ = Reflection.getField(packetClass, int.class, fieldOffset8+2);
+    public BountifulWrapper.PositionSetter getPositionSetter(Class<?> packetClass, int fieldOffset) {
+        Reflection.FieldAccessor<Integer> posX = Reflection.getField(packetClass, int.class, fieldOffset);
+        Reflection.FieldAccessor<Integer> posY = Reflection.getField(packetClass, int.class, fieldOffset +1);
+        Reflection.FieldAccessor<Integer> posZ = Reflection.getField(packetClass, int.class, fieldOffset +2);
 
         return (packet, x, y, z) -> {
             posX.set(packet, MathHelper.floor(x * 32));

SpigotCore_9/src/de/steamwar/core/BountifulWrapper9.java

@@ -56,10 +56,10 @@ public class BountifulWrapper9 implements BountifulWrapper.IBountifulWrapper {
     }
 
     @Override
-    public BountifulWrapper.PositionSetter getPositionSetter(Class<?> packetClass, int fieldOffset8) {
-        Reflection.FieldAccessor<Double> posX = Reflection.getField(packetClass, double.class, 0);
-        Reflection.FieldAccessor<Double> posY = Reflection.getField(packetClass, double.class, 1);
-        Reflection.FieldAccessor<Double> posZ = Reflection.getField(packetClass, double.class, 2);
+    public BountifulWrapper.PositionSetter getPositionSetter(Class<?> packetClass, int fieldOffset) {
+        Reflection.FieldAccessor<Double> posX = Reflection.getField(packetClass, double.class, fieldOffset);
+        Reflection.FieldAccessor<Double> posY = Reflection.getField(packetClass, double.class, fieldOffset+1);
+        Reflection.FieldAccessor<Double> posZ = Reflection.getField(packetClass, double.class, fieldOffset+2);
 
         return (packet, x, y, z) -> {
             posX.set(packet, x);

SpigotCore_Main/src/de/steamwar/core/BountifulWrapper.java

@@ -38,7 +38,7 @@ public class BountifulWrapper {
         Object getDataWatcherObject(int index, Class<?> type);
         Object getDataWatcherItem(Object dataWatcherObject, Object value);
 
-        PositionSetter getPositionSetter(Class<?> packetClass, int fieldOffset8);
+        PositionSetter getPositionSetter(Class<?> packetClass, int fieldOffset);
         UUIDSetter getUUIDSetter(Class<?> packetClass);
     }
 

SpigotCore_Main/src/de/steamwar/entity/REntity.java

@@ -178,8 +178,24 @@ public class REntity {
         server.removeEntity(this);
     }
 
-    private static final Function<REntity, Object> livingSpawnPacketGenerator = entitySpawnPacketGenerator(ProtocolWrapper.spawnLivingPacket, 2);
-    private static final Function<REntity, Object> spawnPacketGenerator = entitySpawnPacketGenerator(ProtocolWrapper.spawnPacket, 1);
+    private static int spawnPacketOffset() {
+        switch (Core.getVersion()) {
+            case 8:
+            case 18:
+                return 1;
+            case 9:
+            case 10:
+            case 12:
+            case 14:
+            case 15:
+                return 0;
+            case 19:
+            default:
+                return 2;
+        }
+    }
+    private static final Function<REntity, Object> spawnPacketGenerator = entitySpawnPacketGenerator(ProtocolWrapper.spawnPacket, spawnPacketOffset());
+    private static final Function<REntity, Object> livingSpawnPacketGenerator = Core.getVersion() >= 19 ? spawnPacketGenerator : entitySpawnPacketGenerator(ProtocolWrapper.spawnLivingPacket, Core.getVersion() == 8 ? 2 : 0);
     void spawn(Consumer<Object> packetSink) {
         if(entityType.isAlive()) {
             packetSink.accept(livingSpawnPacketGenerator.apply(this));
@@ -274,7 +290,7 @@ public class REntity {
 
     private static final Class<?> teleportPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutEntityTeleport");
     private static final Reflection.FieldAccessor<Integer> teleportEntity = Reflection.getField(teleportPacket, int.class, 0);
-    private static final BountifulWrapper.PositionSetter teleportPosition = BountifulWrapper.impl.getPositionSetter(teleportPacket, 1);
+    private static final BountifulWrapper.PositionSetter teleportPosition = BountifulWrapper.impl.getPositionSetter(teleportPacket, Core.getVersion() == 8 ? 1 : 0);
     private static final Reflection.FieldAccessor<Byte> teleportYaw = Reflection.getField(teleportPacket, byte.class, 0);
     private static final Reflection.FieldAccessor<Byte> teleportPitch = Reflection.getField(teleportPacket, byte.class, 1);
     private Object getTeleportPacket(){
@@ -307,9 +323,9 @@ public class REntity {
         return packet;
     }
 
-    private static Function<REntity, Object> entitySpawnPacketGenerator(Class<?> spawnPacket, int posOffset8) {
+    private static Function<REntity, Object> entitySpawnPacketGenerator(Class<?> spawnPacket, int posOffset) {
         BountifulWrapper.UUIDSetter uuid = BountifulWrapper.impl.getUUIDSetter(spawnPacket);
-        Function<REntity, Object> packetGenerator = spawnPacketGenerator(spawnPacket, posOffset8);
+        Function<REntity, Object> packetGenerator = spawnPacketGenerator(spawnPacket, posOffset);
 
         return entity -> {
             Object packet = packetGenerator.apply(entity);
@@ -319,9 +335,9 @@ public class REntity {
         };
     }
 
-    protected static Function<REntity, Object> spawnPacketGenerator(Class<?> spawnPacket, int posOffset8) {
+    protected static Function<REntity, Object> spawnPacketGenerator(Class<?> spawnPacket, int posOffset) {
         Reflection.FieldAccessor<Integer> entityId = Reflection.getField(spawnPacket, int.class, 0);
-        BountifulWrapper.PositionSetter position = BountifulWrapper.impl.getPositionSetter(spawnPacket, posOffset8);
+        BountifulWrapper.PositionSetter position = BountifulWrapper.impl.getPositionSetter(spawnPacket, posOffset);
 
         return entity -> {
             Object packet = Reflection.newInstance(spawnPacket);

SpigotCore_Main/src/de/steamwar/entity/RPlayer.java

@@ -115,7 +115,7 @@ public class RPlayer extends REntity {
     }
 
     private static final Class<?> namedSpawnPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutNamedEntitySpawn");
-    private static final Function<REntity, Object> namedSpawnPacketGenerator = spawnPacketGenerator(namedSpawnPacket, 1);
+    private static final Function<REntity, Object> namedSpawnPacketGenerator = spawnPacketGenerator(namedSpawnPacket, Core.getVersion() == 8 ? 1 : 0);
     private static final Reflection.FieldAccessor<UUID> namedSpawnUUID = Reflection.getField(namedSpawnPacket, UUID.class, 0);
     private Object getNamedSpawnPacket() {
         Object packet = namedSpawnPacketGenerator.apply(this);