Update VV api usage

Author: FlorianMichael

common/src/main/java/com/viaversion/viarewind/api/rewriter/VREntityRewriter.java

@@ -26,7 +26,6 @@
 import com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_8;
 import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.data.entity.EntityTrackerBase;
 
@@ -40,19 +39,6 @@ public VREntityRewriter(T protocol, EntityDataType displayType, EntityDataType d
 		super(protocol, displayType, displayVisibilityType);
 	}
 
-	protected void registerJoinGame1_8(final C packetType) {
-		protocol.registerClientbound(packetType, new PacketHandlers() {
-			@Override
-			protected void register() {
-				map(Types.INT); // Entity id
-				map(Types.UNSIGNED_BYTE); // Game mode
-				map(Types.BYTE); // Dimension
-				handler(playerTrackerHandler());
-				handler(getDimensionHandler());
-			}
-		});
-	}
-
 	protected void removeEntities(final UserConnection connection, final int[] entities) {
 		final EntityTrackerBase tracker = tracker(connection);
 		for (int entityId : entities) {

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/rewriter/EntityPacketRewriter1_9.java

@@ -26,6 +26,7 @@
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.LevitationStorage;
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.PlayerPositionTracker;
 import com.viaversion.viaversion.api.minecraft.BlockPosition;
+import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.EulerAngle;
 import com.viaversion.viaversion.api.minecraft.Vector;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
@@ -60,9 +61,17 @@ public EntityPacketRewriter1_9(Protocol1_9To1_8 protocol) {
 
 	@Override
 	protected void registerPackets() {
-		registerJoinGame1_8(ClientboundPackets1_9.LOGIN);
 		registerRemoveEntities(ClientboundPackets1_9.REMOVE_ENTITIES);
 
+        protocol.registerClientbound(ClientboundPackets1_9.LOGIN, wrapper -> {
+            final int entityId = wrapper.passthrough(Types.INT);
+            wrapper.passthrough(Types.UNSIGNED_BYTE); // Game mode
+            final int dimension = wrapper.passthrough(Types.BYTE);
+
+            trackPlayer(wrapper.user(), entityId);
+            final ClientWorld clientWorld = wrapper.user().getClientWorld(Protocol1_9To1_8.class);
+            clientWorld.setEnvironment(dimension);
+        });
 		protocol.registerClientbound(ClientboundPackets1_9.SET_ENTITY_DATA, wrapper -> {
 			final int entityId = wrapper.passthrough(Types.VAR_INT);
 			if (!tracker(wrapper.user()).hasEntity(entityId)) {

common/src/main/java/com/viaversion/viarewind/protocol/v1_9to1_8/rewriter/PlayerPacketRewriter1_9.java

@@ -21,6 +21,7 @@
 import com.viaversion.viarewind.protocol.v1_9to1_8.Protocol1_9To1_8;
 import com.viaversion.viarewind.protocol.v1_9to1_8.storage.*;
 import com.viaversion.viarewind.utils.ChatUtil;
+import com.viaversion.viaversion.api.data.entity.EntityTracker;
 import com.viaversion.viaversion.api.minecraft.BlockPosition;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_9;
 import com.viaversion.viaversion.api.minecraft.item.Item;
@@ -175,7 +176,8 @@ public void register() {
 					final int dimension = wrapper.get(Types.INT, 0);
 
 					if (world.setEnvironment(dimension)) {
-						protocol.getEntityRewriter().clearEntities(wrapper.user());
+                        final EntityTracker tracker = wrapper.user().getEntityTracker(Protocol1_9To1_8.class);
+                        tracker.clearEntities();
 						wrapper.user().get(BossBarStorage.class).reset();
 					}
 				});