Preserve rotation

Author: embeddedt

forge/src/main/java/org/embeddedt/modernfix/forge/mixin/bugfix/forge_vehicle_packets/ServerGamePacketListenerImplMixin.java

@@ -18,7 +18,15 @@ private void movePlayerUsingPositionRider(ServerPlayer player, double x, double
         if(player == this.player) {
             // use positionRider
             Vec3 oldPos = this.player.position();
+            yRot = this.player.yRot;
+            xRot = this.player.xRot;
+            float yHeadRot = this.player.getYHeadRot();
             this.player.getRootVehicle().positionRider(this.player);
+            // keep old rotation
+            this.player.yRot = yRot;
+            this.player.xRot = xRot;
+            this.player.setYHeadRot(yHeadRot);
+            // save old position
             this.player.xo = oldPos.x;
             this.player.yo = oldPos.y;
             this.player.zo = oldPos.z;