switch (FEAT_TRAINS,SELF, maglevhopper_layer1_grey, [
  STORE_TEMP(PALETTE_GREY, 0x100), cargo_type
]){
  STEL: return spritegroup_SLUGhopper_steel;
  default: return spritegroup_SLUGhopper_wtf;
}

switch (FEAT_TRAINS,SELF, maglevhopper_layer1_dark_blue, [
  STORE_TEMP(PALETTE_DARK_BLUE, 0x100)
]){
  return spritegroup_maglevhopper_cargo_layer;
}

switch (FEAT_TRAINS,SELF, maglevhopper_layer1, [
  cargo_type
]){
  STEL: return maglevhopper_layer1_grey;
  default: return maglevhopper_layer1_darkblue;
}

switch (FEAT_TRAINS,SELF, maglevhopper_layer0, [
  STORE_TEMP(CB_FLAG_MORE_SPRITES + PALETTE_USE_DEFAULT, 0x100)
]){
  return spritegroup_maglevhopper_wagon_layer;
}

switch (FEAT_TRAINS,SELF, maglevhopper_switch, [
  getbits(extra_callback_info1, 8, 8)
]){
  0: maglevhopper_layer0;
  return maglevhopper_layer1;
}