pos = context.rotatePositionLeft(pos);
entityNBT.setTag("Pos",
this.newDoubleNBTList(pos.x, pos.y, pos.z));
nbttaglist = entityNBT.getTagList("Rotation", 5);
float yaw = nbttaglist.func_150308_e(0);
yaw += 90;
entityNBT.setTag(
"Rotation",
this.newFloatNBTList(yaw,
nbttaglist.func_150308_e(1)));