Renamed variables and methods relating to the Bag, renamed $PokemonBag to $Bag, $bag.has? can now check for a minimum quantity

Data/Scripts/002_Save data/004_Game_SaveValues.rb

@@ -103,8 +103,8 @@ end
 
 SaveData.register(:bag) do
   ensure_class :PokemonBag
-  save_value { $PokemonBag }
-  load_value { |value| $PokemonBag = value }
+  save_value { $bag }
+  load_value { |value| $bag = $PokemonBag = value }
   new_game_value { PokemonBag.new }
   from_old_format { |old_format| old_format[13] }
 end

Data/Scripts/002_Save data/005_Game_SaveConversions.rb

@@ -169,3 +169,28 @@ SaveData.register_conversion(:v20_increment_player_character_id) do
     player.character_ID += 1
   end
 end
+
+SaveData.register_conversion(:v20_rename_bag_variables) do
+  essentials_version 20
+  display_title 'Renaming Bag variables'
+  to_value :bag do |bag|
+    bag.instance_eval do
+      if @lastPocket
+        @last_viewed_pocket = @lastPocket
+        @lastPocket = nil
+      end
+      if @choices
+        @last_pocket_selections = @choices.clone
+        @choices = nil
+      end
+      if @registeredItems
+        @registered_items = @registeredItems || []
+        @registeredItems = nil
+      end
+      if @registeredIndex
+        @ready_menu_selection = @registeredIndex || [0, 0, 1]
+        @registeredIndex = nil
+      end
+    end
+  end
+end

Data/Scripts/010_Data/001_Hardcoded data/007_Evolution.rb

@@ -268,9 +268,9 @@ GameData::Evolution.register({
   },
   :after_evolution_proc => proc { |pkmn, new_species, parameter, evo_species|
     next false if $Trainer.party_full?
-    next false if !$PokemonBag.pbHasItem?(:POKEBALL)
+    next false if !$bag.has?(:POKEBALL)
     PokemonEvolutionScene.pbDuplicatePokemon(pkmn, new_species)
-    $PokemonBag.pbDeleteItem(:POKEBALL)
+    $bag.remove(:POKEBALL)
     next true
   }
 })

Data/Scripts/011_Battle/003_Battle/001_PokeBattle_BattleCommon.rb

@@ -207,7 +207,7 @@ module PokeBattle_BattleCommon
       elsif numOwned>30
         dex_modifier = 1
       end
-      dex_modifier *= 2 if $PokemonBag.pbHasItem?(:CATCHINGCHARM)
+      dex_modifier *= 2 if $bag.has?(:CATCHINGCHARM)
       c = x * dex_modifier / 12
       # Calculate the number of shakes
       if c>0 && pbRandom(256)<c

Data/Scripts/011_Battle/003_Battle/004_Battle_ExpAndMoveLearning.rb

@@ -8,7 +8,7 @@ class PokeBattle_Battle
     return if !@internalBattle || !@expGain
     # Go through each battler in turn to find the Pokémon that participated in
     # battle against it, and award those Pokémon Exp/EVs
-    expAll = (GameData::Item.exists?(:EXPALL) && $PokemonBag.pbHasItem?(:EXPALL))
+    expAll = $bag.has?(:EXPALL)
     p1 = pbParty(0)
     @battlers.each do |b|
       next unless b && b.opposes?   # Can only gain Exp from fainted foes
@@ -145,7 +145,7 @@ class PokeBattle_Battle
       end
     end
     # Exp. Charm increases Exp gained
-    exp = exp * 3 / 2 if GameData::Item.exists?(:EXPCHARM) && $PokemonBag.pbHasItem?(:EXPCHARM)
+    exp = exp * 3 / 2 if $bag.has?(:EXPCHARM)
     # Modify Exp gain based on pkmn's held item
     i = BattleHandlers.triggerExpGainModifierItem(pkmn.item,pkmn,exp)
     if i<0

Data/Scripts/011_Battle/003_Battle/007_Battle_Action_UseItem.rb

@@ -43,7 +43,7 @@ class PokeBattle_Battle
     return if !item
     return if !GameData::Item.get(item).consumed_after_use?
     if pbOwnedByPlayer?(idxBattler)
-      if !$PokemonBag.pbDeleteItem(item)
+      if !$bag.remove(item)
         raise _INTL("Tried to consume item that wasn't in the Bag somehow.")
       end
     else
@@ -56,8 +56,8 @@ class PokeBattle_Battle
     return if !item
     return if !GameData::Item.get(item).consumed_after_use?
     if pbOwnedByPlayer?(idxBattler)
-      if $PokemonBag && $PokemonBag.pbCanStore?(item)
-        $PokemonBag.pbStoreItem(item)
+      if $bag && $bag.can_add?(item)
+        $bag.add(item)
       else
         raise _INTL("Couldn't return unused item to Bag somehow.")
       end

Data/Scripts/011_Battle/003_Battle/009_Battle_Action_Other.rb

@@ -63,14 +63,14 @@ class PokeBattle_Battle
   #=============================================================================
   def pbHasMegaRing?(idxBattler)
     return true if !pbOwnedByPlayer?(idxBattler)   # Assume AI trainer have a ring
-    Settings::MEGA_RINGS.each { |item| return true if $PokemonBag.pbHasItem?(item) }
+    Settings::MEGA_RINGS.each { |item| return true if $bag.has?(item) }
     return false
   end
 
   def pbGetMegaRingName(idxBattler)
     if pbOwnedByPlayer?(idxBattler)
       Settings::MEGA_RINGS.each do |item|
-        return GameData::Item.get(item).name if $PokemonBag.pbHasItem?(item)
+        return GameData::Item.get(item).name if $bag.has?(item)
       end
     end
     # NOTE: Add your own Mega objects for particular NPC trainers here.

Data/Scripts/011_Battle/005_Battle scene/008_Scene_Commands.rb

@@ -193,13 +193,13 @@ class PokeBattle_Scene
     # Fade out and hide all sprites
     visibleSprites = pbFadeOutAndHide(@sprites)
     # Set Bag starting positions
-    oldLastPocket = $PokemonBag.lastpocket
-    oldChoices    = $PokemonBag.getAllChoices
-    $PokemonBag.lastpocket = @bagLastPocket if @bagLastPocket!=nil
-    $PokemonBag.setAllChoices(@bagChoices) if @bagChoices!=nil
+    oldLastPocket = $bag.last_viewed_pocket
+    oldChoices    = $bag.last_pocket_selections.clone
+    $bag.last_viewed_pocket     = @bagLastPocket if @bagLastPocket != nil
+    $bag.last_pocket_selections = @bagChoices if @bagChoices != nil
     # Start Bag screen
     itemScene = PokemonBag_Scene.new
-    itemScene.pbStartScene($PokemonBag,true,Proc.new { |item|
+    itemScene.pbStartScene($bag, true, Proc.new { |item|
       useType = GameData::Item.get(item).battle_use
       next useType && useType>0
       },false)
@@ -304,10 +304,10 @@ class PokeBattle_Scene
         break if yield item.id, useType, idxBattler, -1, itemScene
       end
     end
-    @bagLastPocket = $PokemonBag.lastpocket
-    @bagChoices    = $PokemonBag.getAllChoices
-    $PokemonBag.lastpocket = oldLastPocket
-    $PokemonBag.setAllChoices(oldChoices)
+    @bagLastPocket = $bag.last_viewed_pocket
+    @bagChoices    = $bag.last_pocket_selections.clone
+    $bag.last_viewed_pocket     = oldLastPocket
+    $bag.last_pocket_selections = oldChoices
     # Close Bag screen
     itemScene.pbEndScene
     # Fade back into battle screen (if not already showing it)

Data/Scripts/012_Overworld/001_Overworld.rb

@@ -135,9 +135,7 @@ Events.onStepTakenFieldMovement += proc { |_sender,e|
     tile_id = map.data[thistile[1],thistile[2],i]
     next if tile_id == nil
     next if GameData::TerrainTag.try_get(map.terrain_tags[tile_id]).id != :SootGrass
-    if event == $game_player && GameData::Item.exists?(:SOOTSACK)
-      $Trainer.soot += 1 if $PokemonBag.pbHasItem?(:SOOTSACK)
-    end
+    $Trainer.soot += 1 if event == $game_player && $bag.has?(:SOOTSACK)
 #    map.data[thistile[1], thistile[2], i] = 0
 #    $scene.createSingleSpriteset(map.map_id)
     break
@@ -711,7 +709,7 @@ def pbItemBall(item,quantity=1)
   itemname = (quantity>1) ? item.name_plural : item.name
   pocket = item.pocket
   move = item.move
-  if $PokemonBag.pbStoreItem(item,quantity)   # If item can be picked up
+  if $bag.add(item, quantity)   # If item can be picked up
     meName = (item.is_key_item?) ? "Key item get" : "Item get"
     if item == :LEFTOVERS
       pbMessage(_INTL("\\me[{1}]You found some \\c[1]{2}\\c[0]!\\wtnp[30]",meName,itemname))
@@ -727,7 +725,7 @@ def pbItemBall(item,quantity=1)
       pbMessage(_INTL("\\me[{1}]You found a \\c[1]{2}\\c[0]!\\wtnp[30]",meName,itemname))
     end
     pbMessage(_INTL("You put the {1} in\\nyour Bag's <icon=bagPocket{2}>\\c[1]{3}\\c[0] pocket.",
-       itemname,pocket,PokemonBag.pocketNames()[pocket]))
+       itemname, pocket, PokemonBag.pocket_names[pocket]))
     return true
   end
   # Can't add the item
@@ -771,9 +769,9 @@ def pbReceiveItem(item,quantity=1)
   else
     pbMessage(_INTL("\\me[{1}]You obtained a \\c[1]{2}\\c[0]!\\wtnp[30]",meName,itemname))
   end
-  if $PokemonBag.pbStoreItem(item,quantity)   # If item can be added
+  if $bag.add(item, quantity)   # If item can be added
     pbMessage(_INTL("You put the {1} in\\nyour Bag's <icon=bagPocket{2}>\\c[1]{3}\\c[0] pocket.",
-       itemname,pocket,PokemonBag.pocketNames()[pocket]))
+       itemname, pocket, PokemonBag.pocket_names[pocket]))
     return true
   end
   return false   # Can't add the item

Data/Scripts/012_Overworld/002_Battle triggering/003_Overworld_WildEncounters.rb

@@ -414,7 +414,7 @@ def pbGenerateWildPokemon(species,level,isRoamer=false)
   # Improve chances of shiny Pokémon with Shiny Charm and battling more of the
   # same species
   shiny_retries = 0
-  shiny_retries += 2 if GameData::Item.exists?(:SHINYCHARM) && $PokemonBag.pbHasItem?(:SHINYCHARM)
+  shiny_retries += 2 if $bag.has?(:SHINYCHARM)
   if Settings::HIGHER_SHINY_CHANCES_WITH_NUMBER_BATTLED
     values = [0, 0]
     case $Trainer.pokedex.battled_count(species)

Data/Scripts/012_Overworld/006_Overworld_BerryPlants.rb

@@ -354,7 +354,7 @@ def pbBerryPlant
     end
     # Water the growing plant
     GameData::BerryPlant::WATERING_CANS.each do |item|
-      next if !GameData::Item.exists?(item) || !$PokemonBag.pbHasItem?(item)
+      next if !$bag.has?(item)
       break if !pbConfirmMessage(_INTL("Want to sprinkle some water with the {1}?",
          GameData::Item.get(item).name))
       berry_plant.water
@@ -381,14 +381,14 @@ def pbBerryPlant
         mulch = nil
         pbFadeOutIn {
           scene = PokemonBag_Scene.new
-          screen = PokemonBagScreen.new(scene, $PokemonBag)
+          screen = PokemonBagScreen.new(scene, $bag)
           mulch = screen.pbChooseItemScreen(Proc.new { |item| GameData::Item.get(item).is_mulch? })
         }
         return if !mulch
         mulch_data = GameData::Item.get(mulch)
         if mulch_data.is_mulch?
           berry_plant.mulch_id = mulch
-          $PokemonBag.pbDeleteItem(mulch, 1)
+          $bag.remove(mulch)
           pbMessage(_INTL("The {1} was scattered on the soil.\1", mulch_data.name))
         else
           pbMessage(_INTL("That won't fertilize the soil!"))
@@ -408,12 +408,12 @@ def pbBerryPlant
   if !ask_to_plant || pbConfirmMessage(_INTL("Want to plant a Berry?"))
     pbFadeOutIn {
       scene = PokemonBag_Scene.new
-      screen = PokemonBagScreen.new(scene, $PokemonBag)
+      screen = PokemonBagScreen.new(scene, $bag)
       berry = screen.pbChooseItemScreen(Proc.new { |item| GameData::Item.get(item).is_berry? })
     }
     if berry
       berry_plant.plant(berry)
-      $PokemonBag.pbDeleteItem(berry, 1)
+      $bag.remove(berry)
       if Settings::NEW_BERRY_PLANTS
         pbMessage(_INTL("The {1} was planted in the soft, earthy soil.",
            GameData::Item.get(berry).name))
@@ -437,11 +437,11 @@ def pbPickBerry(berry, qty = 1)
     message = _INTL("There is 1 \\c[1]{1}\\c[0]!\nWant to pick it?", berry_name)
   end
   return false if !pbConfirmMessage(message)
-  if !$PokemonBag.pbCanStore?(berry, qty)
+  if !$bag.can_add?(berry, qty)
     pbMessage(_INTL("Too bad...\nThe Bag is full..."))
     return false
   end
-  $PokemonBag.pbStoreItem(berry, qty)
+  $bag.add(berry, qty)
   if qty > 1
     pbMessage(_INTL("You picked the {1} \\c[1]{2}\\c[0].\\wtnp[30]", qty, berry_name))
   else
@@ -449,7 +449,7 @@ def pbPickBerry(berry, qty = 1)
   end
   pocket = berry.pocket
   pbMessage(_INTL("{1} put the \\c[1]{2}\\c[0] in the <icon=bagPocket{3}>\\c[1]{4}\\c[0] Pocket.\1",
-     $Trainer.name, berry_name, pocket, PokemonBag.pocketNames[pocket]))
+     $Trainer.name, berry_name, pocket, PokemonBag.pocket_names[pocket]))
   if Settings::NEW_BERRY_PLANTS
     pbMessage(_INTL("The soil returned to its soft and earthy state."))
   else

Data/Scripts/012_Overworld/007_Overworld_DayCare.rb

@@ -316,7 +316,7 @@ def pbDayCareGenerateEgg
   # Masuda method and Shiny Charm
   shinyretries = 0
   shinyretries += 5 if father.owner.language != mother.owner.language
-  shinyretries += 2 if GameData::Item.exists?(:SHINYCHARM) && $PokemonBag.pbHasItem?(:SHINYCHARM)
+  shinyretries += 2 if $bag.has?(:SHINYCHARM)
   if shinyretries>0
     shinyretries.times do
       break if egg.shiny?
@@ -380,10 +380,8 @@ Events.onStepTaken += proc { |_sender,_e|
     $PokemonGlobal.daycareEggSteps += 1
     if $PokemonGlobal.daycareEggSteps==256
       $PokemonGlobal.daycareEggSteps = 0
-      compatval = [0,20,50,70][pbDayCareGetCompat]
-      if GameData::Item.exists?(:OVALCHARM) && $PokemonBag.pbHasItem?(:OVALCHARM)
-        compatval = [0,40,80,88][pbDayCareGetCompat]
-      end
+      compatval = [0, 20, 50, 70][pbDayCareGetCompat]
+      compatval = [0, 40, 80, 88][pbDayCareGetCompat] if $bag.has?(:OVALCHARM)
       $PokemonGlobal.daycareEgg = 1 if rand(100)<compatval   # Egg is generated
     end
   end

Data/Scripts/013_Items/001_Item_Utilities.rb

@@ -579,7 +579,7 @@ def pbUseItem(bag,item,bagscene=nil)
     if !pbConfirmMessage(_INTL("Do you want to teach {1} to a Pokémon?",movename))
       return 0
     elsif pbMoveTutorChoose(machine,nil,true,itm.is_TR?)
-      bag.pbDeleteItem(item) if itm.consumed_after_use?
+      bag.remove(item) if itm.consumed_after_use?
       return 1
     end
     return 0
@@ -612,8 +612,8 @@ def pbUseItem(bag,item,bagscene=nil)
         if pbCheckUseOnPokemon(item,pkmn,screen)
           ret = ItemHandlers.triggerUseOnPokemon(item,pkmn,screen)
           if ret && itm.consumed_after_use?
-            bag.pbDeleteItem(item)
-            if !bag.pbHasItem?(item)
+            bag.remove(item)
+            if !bag.has?(item)
               pbMessage(_INTL("You used your last {1}.",itm.name)) { screen.pbUpdate }
               break
             end
@@ -627,7 +627,7 @@ def pbUseItem(bag,item,bagscene=nil)
   elsif useType==2   # Item is usable from Bag
     intret = ItemHandlers.triggerUseFromBag(item)
     if intret >= 0
-      bag.pbDeleteItem(item) if intret == 1 && itm.consumed_after_use?
+      bag.remove(item) if intret == 1 && itm.consumed_after_use?
       return intret
     end
     pbMessage(_INTL("Can't use that here."))
@@ -654,7 +654,7 @@ def pbUseItemOnPokemon(item,pkmn,scene)
       pbMessage(_INTL("\\se[PC access]You booted up {1}.\1",itm.name)) { scene.pbUpdate }
       if pbConfirmMessage(_INTL("Do you want to teach {1} to {2}?",movename,pkmn.name)) { scene.pbUpdate }
         if pbLearnMove(pkmn,machine,false,true) { scene.pbUpdate }
-          $PokemonBag.pbDeleteItem(item) if itm.consumed_after_use?
+          $bag.remove(item) if itm.consumed_after_use?
           return true
         end
       end
@@ -666,8 +666,8 @@ def pbUseItemOnPokemon(item,pkmn,scene)
   scene.pbClearAnnotations
   scene.pbHardRefresh
   if ret && itm.consumed_after_use?
-    $PokemonBag.pbDeleteItem(item)
-    if !$PokemonBag.pbHasItem?(item)
+    $bag.remove(item)
+    if !$bag.has?(item)
       pbMessage(_INTL("You used your last {1}.",itm.name)) { scene.pbUpdate }
     end
   end
@@ -679,7 +679,7 @@ def pbUseKeyItemInField(item)
   if ret==-1   # Item effect not found
     pbMessage(_INTL("Can't use that here."))
   elsif ret > 0 && GameData::Item.get(item).consumed_after_use?
-    $PokemonBag.pbDeleteItem(item)
+    $bag.remove(item)
   end
   return ret > 0
 end
@@ -719,9 +719,9 @@ def pbGiveItemToPokemon(item,pkmn,scene,pkmnid=0)
       scene.pbDisplay(_INTL("{1} is already holding a {2}.\1",pkmn.name,olditemname))
     end
     if scene.pbConfirm(_INTL("Would you like to switch the two items?"))
-      $PokemonBag.pbDeleteItem(item)
-      if !$PokemonBag.pbStoreItem(pkmn.item)
-        if !$PokemonBag.pbStoreItem(item)
+      $bag.remove(item)
+      if !$bag.add(pkmn.item)
+        if !$bag.add(item)
           raise _INTL("Could't re-store deleted item in Bag somehow")
         end
         scene.pbDisplay(_INTL("The Bag is full. The Pokémon's item could not be removed."))
@@ -732,7 +732,7 @@ def pbGiveItemToPokemon(item,pkmn,scene,pkmnid=0)
             scene.pbDisplay(_INTL("Took the {1} from {2} and gave it the {3}.",olditemname,pkmn.name,newitemname))
             return true
           else
-            if !$PokemonBag.pbStoreItem(item)
+            if !$bag.add(item)
               raise _INTL("Couldn't re-store deleted item in Bag somehow")
             end
           end
@@ -745,7 +745,7 @@ def pbGiveItemToPokemon(item,pkmn,scene,pkmnid=0)
     end
   else
     if !GameData::Item.get(item).is_mail? || pbWriteMail(item,pkmn,pkmnid,scene)
-      $PokemonBag.pbDeleteItem(item)
+      $bag.remove(item)
       pkmn.item = item
       scene.pbDisplay(_INTL("{1} is now holding the {2}.",pkmn.name,newitemname))
       return true
@@ -758,7 +758,7 @@ def pbTakeItemFromPokemon(pkmn,scene)
   ret = false
   if !pkmn.hasItem?
     scene.pbDisplay(_INTL("{1} isn't holding anything.",pkmn.name))
-  elsif !$PokemonBag.pbCanStore?(pkmn.item)
+  elsif !$bag.can_add?(pkmn.item)
     scene.pbDisplay(_INTL("The Bag is full. The Pokémon's item could not be removed."))
   elsif pkmn.mail
     if scene.pbConfirm(_INTL("Save the removed mail in your PC?"))
@@ -770,14 +770,14 @@ def pbTakeItemFromPokemon(pkmn,scene)
         ret = true
       end
     elsif scene.pbConfirm(_INTL("If the mail is removed, its message will be lost. OK?"))
-      $PokemonBag.pbStoreItem(pkmn.item)
+      $bag.add(pkmn.item)
       scene.pbDisplay(_INTL("Received the {1} from {2}.",pkmn.item.name,pkmn.name))
       pkmn.item = nil
       pkmn.mail = nil
       ret = true
     end
   else
-    $PokemonBag.pbStoreItem(pkmn.item)
+    $bag.add(pkmn.item)
     scene.pbDisplay(_INTL("Received the {1} from {2}.",pkmn.item.name,pkmn.name))
     pkmn.item = nil
     ret = true
@@ -792,7 +792,7 @@ def pbChooseItem(var = 0, *args)
   ret = nil
   pbFadeOutIn {
     scene = PokemonBag_Scene.new
-    screen = PokemonBagScreen.new(scene,$PokemonBag)
+    screen = PokemonBagScreen.new(scene, $bag)
     ret = screen.pbChooseItemScreen
   }
   $game_variables[var] = ret || :NONE if var > 0
@@ -803,7 +803,7 @@ def pbChooseApricorn(var = 0)
   ret = nil
   pbFadeOutIn {
     scene = PokemonBag_Scene.new
-    screen = PokemonBagScreen.new(scene,$PokemonBag)
+    screen = PokemonBagScreen.new(scene, $bag)
     ret = screen.pbChooseItemScreen(Proc.new { |item| GameData::Item.get(item).is_apricorn? })
   }
   $game_variables[var] = ret || :NONE if var > 0
@@ -814,7 +814,7 @@ def pbChooseFossil(var = 0)
   ret = nil
   pbFadeOutIn {
     scene = PokemonBag_Scene.new
-    screen = PokemonBagScreen.new(scene,$PokemonBag)
+    screen = PokemonBagScreen.new(scene, $bag)
     ret = screen.pbChooseItemScreen(Proc.new { |item| GameData::Item.get(item).is_fossil? })
   }
   $game_variables[var] = ret || :NONE if var > 0
@@ -829,7 +829,7 @@ def pbChooseItemFromList(message, variable, *args)
   for item in args
     next if !GameData::Item.exists?(item)
     itm = GameData::Item.get(item)
-    next if !$PokemonBag.pbHasItem?(itm)
+    next if !$bag.has?(itm)
     commands.push(itm.name)
     itemid.push(itm.id)
   end

Data/Scripts/013_Items/002_Item_Effects.rb

@@ -109,19 +109,17 @@ Events.onStepTaken += proc {
   if $PokemonGlobal.repel > 0 && !$game_player.terrain_tag.ice   # Shouldn't count down if on ice
     $PokemonGlobal.repel -= 1
     if $PokemonGlobal.repel <= 0
-      if $PokemonBag.pbHasItem?(:REPEL) ||
-         $PokemonBag.pbHasItem?(:SUPERREPEL) ||
-         $PokemonBag.pbHasItem?(:MAXREPEL)
+      if $bag.has?(:REPEL) || $bag.has?(:SUPERREPEL) || $bag.has?(:MAXREPEL)
         if pbConfirmMessage(_INTL("The repellent's effect wore off! Would you like to use another one?"))
           ret = nil
           pbFadeOutIn {
             scene = PokemonBag_Scene.new
-            screen = PokemonBagScreen.new(scene,$PokemonBag)
+            screen = PokemonBagScreen.new(scene, $bag)
             ret = screen.pbChooseItemScreen(Proc.new { |item|
               [:REPEL, :SUPERREPEL, :MAXREPEL].include?(item)
             })
           }
-          pbUseItem($PokemonBag,ret) if ret
+          pbUseItem($bag, ret) if ret
         end
       else
         pbMessage(_INTL("The repellent's effect wore off!"))
@@ -314,13 +312,13 @@ ItemHandlers::UseInField.add(:COINCASE,proc { |item|
 })
 
 ItemHandlers::UseInField.add(:EXPALL,proc { |item|
-  $PokemonBag.pbChangeItem(:EXPALL,:EXPALLOFF)
+  $bag.replace_item(:EXPALL, :EXPALLOFF)
   pbMessage(_INTL("The Exp Share was turned off."))
   next true
 })
 
 ItemHandlers::UseInField.add(:EXPALLOFF,proc { |item|
-  $PokemonBag.pbChangeItem(:EXPALLOFF,:EXPALL)
+  $bag.replace_item(:EXPALLOFF, :EXPALL)
   pbMessage(_INTL("The Exp Share was turned on."))
   next true
 })
@@ -896,13 +894,13 @@ ItemHandlers::UseOnPokemon.add(:EXPCANDYXS, proc { |item, pkmn, scene|
   end
   gain_amount = 100
   maximum = ((pkmn.growth_rate.maximum_exp - pkmn.exp) / gain_amount.to_f).ceil
-  maximum = [maximum, $PokemonBag.pbQuantity(item)].min
+  maximum = [maximum, $bag.quantity(item)].min
   qty = scene.scene.pbChooseNumber(
      _INTL("How many {1} do you want to use?", GameData::Item.get(item).name), maximum)
   next false if qty == 0
   scene.scene.pbSetHelpText("") if scene.is_a?(PokemonPartyScreen)
   pbChangeExp(pkmn, pkmn.exp + gain_amount * qty, scene)
-  $PokemonBag.pbDeleteItem(item, qty - 1)
+  $bag.remove(item, qty - 1)
   scene.pbHardRefresh
   next true
 })
@@ -914,13 +912,13 @@ ItemHandlers::UseOnPokemon.add(:EXPCANDYS, proc { |item, pkmn, scene|
   end
   gain_amount = 800
   maximum = ((pkmn.growth_rate.maximum_exp - pkmn.exp) / gain_amount.to_f).ceil
-  maximum = [maximum, $PokemonBag.pbQuantity(item)].min
+  maximum = [maximum, $bag.quantity(item)].min
   qty = scene.scene.pbChooseNumber(
      _INTL("How many {1} do you want to use?", GameData::Item.get(item).name), maximum)
   next false if qty == 0
   scene.scene.pbSetHelpText("") if scene.is_a?(PokemonPartyScreen)
   pbChangeExp(pkmn, pkmn.exp + gain_amount * qty, scene)
-  $PokemonBag.pbDeleteItem(item, qty - 1)
+  $bag.remove(item, qty - 1)
   scene.pbHardRefresh
   next true
 })
@@ -932,13 +930,13 @@ ItemHandlers::UseOnPokemon.add(:EXPCANDYM, proc { |item, pkmn, scene|
   end
   gain_amount = 3_000
   maximum = ((pkmn.growth_rate.maximum_exp - pkmn.exp) / gain_amount.to_f).ceil
-  maximum = [maximum, $PokemonBag.pbQuantity(item)].min
+  maximum = [maximum, $bag.quantity(item)].min
   qty = scene.scene.pbChooseNumber(
      _INTL("How many {1} do you want to use?", GameData::Item.get(item).name), maximum)
   next false if qty == 0
   scene.scene.pbSetHelpText("") if scene.is_a?(PokemonPartyScreen)
   pbChangeExp(pkmn, pkmn.exp + gain_amount * qty, scene)
-  $PokemonBag.pbDeleteItem(item, qty - 1)
+  $bag.remove(item, qty - 1)
   scene.pbHardRefresh
   next true
 })
@@ -950,13 +948,13 @@ ItemHandlers::UseOnPokemon.add(:EXPCANDYL, proc { |item, pkmn, scene|
   end
   gain_amount = 10_000
   maximum = ((pkmn.growth_rate.maximum_exp - pkmn.exp) / gain_amount.to_f).ceil
-  maximum = [maximum, $PokemonBag.pbQuantity(item)].min
+  maximum = [maximum, $bag.quantity(item)].min
   qty = scene.scene.pbChooseNumber(
      _INTL("How many {1} do you want to use?", GameData::Item.get(item).name), maximum)
   next false if qty == 0
   scene.scene.pbSetHelpText("") if scene.is_a?(PokemonPartyScreen)
   pbChangeExp(pkmn, pkmn.exp + gain_amount * qty, scene)
-  $PokemonBag.pbDeleteItem(item, qty - 1)
+  $bag.remove(item, qty - 1)
   scene.pbHardRefresh
   next true
 })
@@ -968,13 +966,13 @@ ItemHandlers::UseOnPokemon.add(:EXPCANDYXL, proc { |item, pkmn, scene|
   end
   gain_amount = 30_000
   maximum = ((pkmn.growth_rate.maximum_exp - pkmn.exp) / gain_amount.to_f).ceil
-  maximum = [maximum, $PokemonBag.pbQuantity(item)].min
+  maximum = [maximum, $bag.quantity(item)].min
   qty = scene.scene.pbChooseNumber(
      _INTL("How many {1} do you want to use?", GameData::Item.get(item).name), maximum)
   next false if qty == 0
   scene.scene.pbSetHelpText("") if scene.is_a?(PokemonPartyScreen)
   pbChangeExp(pkmn, pkmn.exp + gain_amount * qty, scene)
-  $PokemonBag.pbDeleteItem(item, qty - 1)
+  $bag.remove(item, qty - 1)
   scene.pbHardRefresh
   next true
 })
@@ -1275,7 +1273,7 @@ ItemHandlers::UseOnPokemon.add(:DNASPLICERS,proc { |item,pkmn,scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:DNASPLICERS, :DNASPLICERSUSED)
+  $bag.replace_item(:DNASPLICERS, :DNASPLICERSUSED)
   next true
 })
 
@@ -1297,7 +1295,7 @@ ItemHandlers::UseOnPokemon.add(:DNASPLICERSUSED,proc { |item,pkmn,scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:DNASPLICERSUSED, :DNASPLICERS)
+  $bag.replace_item(:DNASPLICERSUSED, :DNASPLICERS)
   next true
 })
 
@@ -1332,7 +1330,7 @@ ItemHandlers::UseOnPokemon.add(:NSOLARIZER,proc { |item,pkmn,scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:NSOLARIZER, :NSOLARIZERUSED)
+  $bag.replace_item(:NSOLARIZER, :NSOLARIZERUSED)
   next true
 })
 
@@ -1354,7 +1352,7 @@ ItemHandlers::UseOnPokemon.add(:NSOLARIZERUSED,proc { |item,pkmn,scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:NSOLARIZERUSED, :NSOLARIZER)
+  $bag.replace_item(:NSOLARIZERUSED, :NSOLARIZER)
   next true
 })
 
@@ -1389,7 +1387,7 @@ ItemHandlers::UseOnPokemon.add(:NLUNARIZER,proc { |item,pkmn,scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:NLUNARIZER, :NLUNARIZERUSED)
+  $bag.replace_item(:NLUNARIZER, :NLUNARIZERUSED)
   next true
 })
 
@@ -1411,7 +1409,7 @@ ItemHandlers::UseOnPokemon.add(:NLUNARIZERUSED,proc { |item,pkmn,scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:NLUNARIZERUSED, :NLUNARIZER)
+  $bag.replace_item(:NLUNARIZERUSED, :NLUNARIZER)
   next true
 })
 
@@ -1450,7 +1448,7 @@ ItemHandlers::UseOnPokemon.add(:REINSOFUNITY, proc { |item, pkmn, scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:REINSOFUNITY, :REINSOFUNITYUSED)
+  $bag.replace_item(:REINSOFUNITY, :REINSOFUNITYUSED)
   next true
 })
 
@@ -1472,6 +1470,6 @@ ItemHandlers::UseOnPokemon.add(:REINSOFUNITYUSED, proc { |item, pkmn, scene|
     scene.pbHardRefresh
     scene.pbDisplay(_INTL("{1} changed Forme!", pkmn.name))
   }
-  $PokemonBag.pbChangeItem(:REINSOFUNITYUSED, :REINSOFUNITY)
+  $bag.replace_item(:REINSOFUNITYUSED, :REINSOFUNITY)
   next true
 })

Data/Scripts/013_Items/008_PokemonBag.rb

@@ -1,57 +1,35 @@
 #===============================================================================
-# The Bag object, which actually contains all the items
+# The Bag object, which actually contains all the items.
 #===============================================================================
 class PokemonBag
-  attr_accessor :lastpocket
+  attr_accessor :last_viewed_pocket
+  attr_accessor :last_pocket_selections
+  attr_reader   :registered_items
+  attr_reader   :ready_menu_selection
 
-  def self.pocketNames
+  def self.pocket_names
     return Settings.bag_pocket_names
   end
 
-  def self.numPockets
-    return self.pocketNames.length-1
+  def self.pocket_count
+    return self.pocket_names.length - 1
   end
 
   def initialize
-    @lastpocket = 1
-    @pockets    = []
-    @choices    = []
-    for i in 0..PokemonBag.numPockets
+    @last_viewed_pocket     = 1
+    @pockets                = []
+    @last_pocket_selections = []
+    for i in 0..PokemonBag.pocket_count
       @pockets[i] = []
-      @choices[i] = 0
+      @last_pocket_selections[i] = 0
     end
-    @registeredItems = []
-    @registeredIndex = [0, 0, 1]   # Used by the Ready Menu to remember cursor positions
-  end
-
-  def rearrange
-    return if @pockets.length == PokemonBag.numPockets + 1
-    @lastpocket = 1
-    new_pockets = []
-    @choices    = []
-    for i in 0..PokemonBag.numPockets
-      new_pockets[i] = []
-      @choices[i] = 0
-    end
-    @pockets.each do |pocket|
-      next if !pocket
-      pocket.each do |item|
-        p = GameData::Item.get(item[0]).pocket
-        new_pockets[p].push(item)
-      end
-    end
-    new_pockets.each_with_index do |pocket, i|
-      next if i == 0 || !Settings::BAG_POCKET_AUTO_SORT[i]
-      pocket.sort! { |a, b| GameData::Item.keys.index(a[0]) <=> GameData::Item.keys.index(b[0]) }
-    end
-    @pockets = new_pockets
+    @registered_items     = []
+    @ready_menu_selection = [0, 0, 1]   # Used by the Ready Menu to remember cursor positions
   end
 
   def clear
     @pockets.each { |pocket| pocket.clear }
-    for i in 0..PokemonBag.numPockets
-      @choices[i] = 0
-    end
+    (PokemonBag.pocket_count + 1).times { |i| @last_pocket_selections[i] = 0 }
   end
 
   def pockets
@@ -59,131 +37,156 @@ class PokemonBag
     return @pockets
   end
 
-  def maxPocketSize(pocket)
-    maxsize = Settings::BAG_MAX_POCKET_SIZE[pocket]
-    return -1 if !maxsize
-    return maxsize
-  end
+  #=============================================================================
 
   # Gets the index of the current selected item in the pocket
-  def getChoice(pocket)
-    if pocket <= 0 || pocket > PokemonBag.numPockets
+  def last_viewed_index(pocket)
+    if pocket <= 0 || pocket > PokemonBag.pocket_count
       raise ArgumentError.new(_INTL("Invalid pocket: {1}", pocket.inspect))
     end
     rearrange
-    return [@choices[pocket], @pockets[pocket].length].min || 0
+    return [@last_pocket_selections[pocket], @pockets[pocket].length].min || 0
   end
 
   # Sets the index of the current selected item in the pocket
-  def setChoice(pocket,value)
-    if pocket <= 0 || pocket > PokemonBag.numPockets
+  def set_last_viewed_index(pocket, value)
+    if pocket <= 0 || pocket > PokemonBag.pocket_count
       raise ArgumentError.new(_INTL("Invalid pocket: {1}", pocket.inspect))
     end
     rearrange
-    @choices[pocket] = value if value <= @pockets[pocket].length
+    @last_pocket_selections[pocket] = value if value <= @pockets[pocket].length
   end
 
-  def getAllChoices
-    ret = @choices.clone
-    for i in 0...@choices.length
-      @choices[i] = 0
+  #=============================================================================
+
+  def quantity(item)
+    item_data = GameData::Item.try_get(item)
+    return 0 if !item_data
+    pocket = item_data.pocket
+    return ItemStorageHelper.quantity(@pockets[pocket], item_data.id)
+  end
+
+  def has?(item, qty = 1)
+    return quantity(item) >= qty
+  end
+  alias can_remove? has?
+
+  def can_add?(item, qty = 1)
+    item_data = GameData::Item.try_get(item)
+    return false if !item_data
+    pocket = item_data.pocket
+    max_size = max_pocket_size(pocket)
+    max_size = @pockets[pocket].length + 1 if max_size < 0   # Infinite size
+    return ItemStorageHelper.can_add?(
+       @pockets[pocket], max_size, Settings::BAG_MAX_PER_SLOT, item_data.id, qty)
+  end
+
+  def add(item, qty = 1)
+    item_data = GameData::Item.try_get(item)
+    return false if !item_data
+    pocket = item_data.pocket
+    max_size = max_pocket_size(pocket)
+    max_size = @pockets[pocket].length + 1 if max_size < 0   # Infinite size
+    ret = ItemStorageHelper.add(@pockets[pocket],
+       max_size, Settings::BAG_MAX_PER_SLOT, item_data.id, qty)
+    if ret && Settings::BAG_POCKET_AUTO_SORT[pocket]
+      @pockets[pocket].sort! { |a, b| GameData::Item.keys.index(a[0]) <=> GameData::Item.keys.index(b[0]) }
     end
     return ret
   end
 
-  def setAllChoices(choices)
-    @choices = choices
+  # Adds qty number of item. Doesn't add anything if it can't add all of them.
+  def add_all(item, qty = 1)
+    return false if !can_add?(item, qty)
+    return add(item, qty)
   end
 
-  def pbQuantity(item)
-    item = GameData::Item.get(item)
+  # Deletes as many of item as possible (up to qty), and returns whether it
+  # managed to delete qty of them.
+  def remove(item, qty = 1)
+    item_data = GameData::Item.try_get(item)
+    return false if !item_data
     pocket = item.pocket
-    return ItemStorageHelper.pbQuantity(@pockets[pocket], item.id)
+    return ItemStorageHelper.remove(@pockets[pocket], item.id, qty)
   end
 
-  def pbHasItem?(item)
-    return pbQuantity(item) > 0
+  # Deletes qty number of item. Doesn't delete anything if there are less than
+  # qty of the item in the Bag.
+  def remove_all(item, qty = 1)
+    return false if !can_remove?(item, qty)
+    return remove(item, qty)
   end
 
-  def pbCanStore?(item, qty = 1)
-    item = GameData::Item.get(item)
-    pocket = item.pocket
-    maxsize = maxPocketSize(pocket)
-    maxsize = @pockets[pocket].length + 1 if maxsize < 0
-    return ItemStorageHelper.pbCanStore?(
-       @pockets[pocket], maxsize, Settings::BAG_MAX_PER_SLOT, item.id, qty)
-  end
-
-  def pbStoreItem(item, qty = 1)
-    item = GameData::Item.get(item)
-    pocket = item.pocket
-    maxsize = maxPocketSize(pocket)
-    maxsize = @pockets[pocket].length + 1 if maxsize < 0
-    return ItemStorageHelper.pbStoreItem(
-       @pockets[pocket], maxsize, Settings::BAG_MAX_PER_SLOT, item.id, qty, true)
-  end
-
-  def pbStoreAllOrNone(item, qty = 1)
-    return false if !pbCanStore?(item, qty)
-    return pbStoreItem(item, qty)
-  end
-
-  def pbChangeItem(old_item, new_item)
-    old_item = GameData::Item.get(old_item)
-    new_item = GameData::Item.get(new_item)
-    pocket = old_item.pocket
+  # This only works if the old and new items are in the same pocket. Used for
+  # switching on/off certain Key Items. Replaces all old_item in its pocket with
+  # new_item.
+  def replace_item(old_item, new_item)
+    old_item_data = GameData::Item.try_get(old_item)
+    new_item_data = GameData::Item.try_get(new_item)
+    return false if !old_item_data || !new_item_data
+    pocket = old_item_data.pocket
+    old_id = old_item_data.id
+    new_id = new_item_data.id
     ret = false
     @pockets[pocket].each do |item|
-      next if !item || item[0] != old_item.id
-      item[0] = new_item.id
+      next if !item || item[0] != old_id
+      item[0] = new_id
       ret = true
     end
     return ret
   end
 
-  def pbChangeQuantity(pocket, index, newqty = 1)
-    return false if pocket <= 0 || pocket > self.numPockets
-    return false if !@pockets[pocket][index]
-    newqty = [newqty, maxPocketSize(pocket)].min
-    @pockets[pocket][index][1] = newqty
-    return true
-  end
+  #=============================================================================
 
-  def pbDeleteItem(item, qty = 1)
-    item = GameData::Item.get(item)
-    pocket = item.pocket
-    ret = ItemStorageHelper.pbDeleteItem(@pockets[pocket], item.id, qty)
-    return ret
-  end
-
-  def registeredItems
-    @registeredItems = [] if !@registeredItems
-    return @registeredItems
-  end
-
-  def pbIsRegistered?(item)
-    item = GameData::Item.get(item).id
-    registeredlist = self.registeredItems
-    return registeredlist.include?(item)
+  # Returns whether item has been registered for quick access in the Ready Menu.
+  def registered?(item)
+    item_data = GameData::Item.try_get(item)
+    return false if !item_data
+    return @registered_items.include?(item_data.id)
   end
 
   # Registers the item in the Ready Menu.
-  def pbRegisterItem(item)
-    item = GameData::Item.get(item).id
-    registeredlist = self.registeredItems
-    registeredlist.push(item) if !registeredlist.include?(item)
+  def register(item)
+    item_data = GameData::Item.try_get(item)
+    return if !item_data
+    @registered_items.push(item_data.id) if !@registered_items.include?(item_data.id)
   end
 
   # Unregisters the item from the Ready Menu.
-  def pbUnregisterItem(item)
-    item = GameData::Item.get(item).id
-    registeredlist = self.registeredItems
-    registeredlist.delete_at(registeredlist.index(item))
+  def unregister(item)
+    item_data = GameData::Item.try_get(item)
+    @registered_items.delete(item_data.id) if item_data
   end
 
-  def registeredIndex
-    @registeredIndex = [0, 0, 1] if !@registeredIndex
-    return @registeredIndex
+  #=============================================================================
+
+  private
+
+  def max_pocket_size(pocket)
+    return Settings::BAG_MAX_POCKET_SIZE[pocket] || -1
+  end
+
+  def rearrange
+    return if @pockets.length == PokemonBag.pocket_count + 1
+    @last_viewed_pocket = 1
+    new_pockets = []
+    @last_pocket_selections = []
+    (PokemonBag.pocket_count + 1).times do |i|
+      new_pockets[i] = []
+      @last_pocket_selections[i] = 0
+    end
+    @pockets.each do |pocket|
+      next if !pocket
+      pocket.each do |item|
+        item_pocket = GameData::Item.get(item[0]).pocket
+        new_pockets[item_pocket].push(item)
+      end
+    end
+    new_pockets.each_with_index do |pocket, i|
+      next if i == 0 || !Settings::BAG_POCKET_AUTO_SORT[i]
+      pocket.sort! { |a, b| GameData::Item.keys.index(a[0]) <=> GameData::Item.keys.index(b[0]) }
+    end
+    @pockets = new_pockets
   end
 end
 
@@ -201,7 +204,7 @@ class PCItemStorage
   def initialize
     @items = []
     # Start storage with a Potion
-    pbStoreItem(:POTION) if GameData::Item.exists?(:POTION)
+    add(:POTION) if GameData::Item.exists?(:POTION)
   end
 
   def [](i)
@@ -220,32 +223,35 @@ class PCItemStorage
     @items.clear
   end
 
-  def getItem(index)
+  # Unused
+  def get_item(index)
     return (index < 0 || index >= @items.length) ? nil : @items[index][0]
   end
 
-  def getCount(index)
+  # Number of the item in the given index
+  # Unused
+  def get_item_count(index)
     return (index < 0 || index >= @items.length) ? 0 : @items[index][1]
   end
 
-  def pbQuantity(item)
+  def quantity(item)
     item = GameData::Item.get(item).id
-    return ItemStorageHelper.pbQuantity(@items, item)
+    return ItemStorageHelper.quantity(@items, item)
   end
 
-  def pbCanStore?(item, qty = 1)
+  def can_add?(item, qty = 1)
     item = GameData::Item.get(item).id
-    return ItemStorageHelper.pbCanStore?(@items, MAX_SIZE, MAX_PER_SLOT, item, qty)
+    return ItemStorageHelper.can_add?(@items, MAX_SIZE, MAX_PER_SLOT, item, qty)
   end
 
-  def pbStoreItem(item, qty = 1)
+  def add(item, qty = 1)
     item = GameData::Item.get(item).id
-    return ItemStorageHelper.pbStoreItem(@items, MAX_SIZE, MAX_PER_SLOT, item, qty)
+    return ItemStorageHelper.add(@items, MAX_SIZE, MAX_PER_SLOT, item, qty)
   end
 
-  def pbDeleteItem(item, qty = 1)
+  def remove(item, qty = 1)
     item = GameData::Item.get(item).id
-    return ItemStorageHelper.pbDeleteItem(@items, item, qty)
+    return ItemStorageHelper.remove(@items, item, qty)
   end
 end
 
@@ -257,25 +263,62 @@ end
 # Used by the Bag, PC item storage, and Triple Triad.
 #===============================================================================
 module ItemStorageHelper
-  # Returns the quantity of check_item in item_array
-  def self.pbQuantity(item_array, check_item)
+  # Returns the quantity of item in items
+  def self.quantity(items, item)
     ret = 0
-    item_array.each { |i| ret += i[1] if i && i[0] == check_item }
+    items.each { |i| ret += i[1] if i && i[0] == item }
     return ret
   end
 
+  def self.can_add?(items, max_slots, max_per_slot, item, qty)
+    raise "Invalid value for qty: #{qty}" if qty < 0
+    return true if qty == 0
+    max_slots.times do |i|
+      item_slot = items[i]
+      if !item_slot
+        qty -= [qty, max_per_slot].min
+        return true if qty == 0
+      elsif item_slot[0] == item && item_slot[1] < max_per_slot
+        new_amt = item_slot[1]
+        new_amt = [new_amt + qty, max_per_slot].min
+        qty -= (new_amt - item_slot[1])
+        return true if qty == 0
+      end
+    end
+    return false
+  end
+
+  def self.add(items, max_slots, max_per_slot, item, qty)
+    raise "Invalid value for qty: #{qty}" if qty < 0
+    return true if qty == 0
+    max_slots.times do |i|
+      item_slot = items[i]
+      if !item_slot
+        items[i] = [item, [qty, max_per_slot].min]
+        qty -= items[i][1]
+        return true if qty == 0
+      elsif item_slot[0] == item && item_slot[1] < max_per_slot
+        new_amt = item_slot[1]
+        new_amt = [new_amt + qty, max_per_slot].min
+        qty -= (new_amt - item_slot[1])
+        item_slot[1] = new_amt
+        return true if qty == 0
+      end
+    end
+    return false
+  end
+
   # Deletes an item (items array, max. size per slot, item, no. of items to delete)
-  def self.pbDeleteItem(items, item, qty)
+  def self.remove(items, item, qty)
     raise "Invalid value for qty: #{qty}" if qty < 0
     return true if qty == 0
     ret = false
-    for i in 0...items.length
-      itemslot = items[i]
-      next if !itemslot || itemslot[0] != item
-      amount = [qty, itemslot[1]].min
-      itemslot[1] -= amount
+    items.each_with_index do |item_slot, i|
+      next if !item_slot || item_slot[0] != item
+      amount = [qty, item_slot[1]].min
+      item_slot[1] -= amount
       qty -= amount
-      items[i] = nil if itemslot[1] == 0
+      items[i] = nil if item_slot[1] == 0
       next if qty > 0
       ret = true
       break
@@ -283,72 +326,86 @@ module ItemStorageHelper
     items.compact!
     return ret
   end
-
-  def self.pbCanStore?(items, maxsize, maxPerSlot, item, qty)
-    raise "Invalid value for qty: #{qty}" if qty < 0
-    return true if qty == 0
-    for i in 0...maxsize
-      itemslot = items[i]
-      if !itemslot
-        qty -= [qty, maxPerSlot].min
-        return true if qty == 0
-      elsif itemslot[0] == item && itemslot[1] < maxPerSlot
-        newamt = itemslot[1]
-        newamt = [newamt + qty, maxPerSlot].min
-        qty -= (newamt - itemslot[1])
-        return true if qty == 0
-      end
-    end
-    return false
-  end
-
-  def self.pbStoreItem(items, maxsize, maxPerSlot, item, qty, sorting = false)
-    raise "Invalid value for qty: #{qty}" if qty < 0
-    return true if qty == 0
-    itm = GameData::Item.try_get(item)
-    itemPocket = (itm) ? itm.pocket : 0
-    for i in 0...maxsize
-      itemslot = items[i]
-      if !itemslot
-        items[i] = [item, [qty, maxPerSlot].min]
-        qty -= items[i][1]
-        if itemPocket > 0 && sorting && Settings::BAG_POCKET_AUTO_SORT[itemPocket]
-          items.sort! { |a, b| GameData::Item.keys.index(a[0]) <=> GameData::Item.keys.index(b[0]) }
-        end
-        return true if qty == 0
-      elsif itemslot[0] == item && itemslot[1] < maxPerSlot
-        newamt = itemslot[1]
-        newamt = [newamt + qty, maxPerSlot].min
-        qty -= (newamt - itemslot[1])
-        itemslot[1] = newamt
-        return true if qty == 0
-      end
-    end
-    return false
-  end
 end
 
 
 
 #===============================================================================
-# Shortcut methods
+# Deprecated methods
 #===============================================================================
-def pbQuantity(*args)
-  return $PokemonBag.pbQuantity(*args)
+class PokemonBag
+  def pbQuantity(item)
+    Deprecation.warn_method('pbQuantity', 'v21', '$bag.quantity(item)')
+    return quantity(item)
+  end
+
+  def pbHasItem?(item)
+    Deprecation.warn_method('pbHasItem?', 'v21', '$bag.has?(item)')
+    return has?(item)
+  end
+
+  def pbCanStore?(item, quantity = 1)
+    Deprecation.warn_method('pbCanStore?', 'v21', '$bag.can_add?(item, quantity)')
+    return can_add?(item, quantity)
+  end
+
+  def pbStoreItem(item, quantity = 1)
+    Deprecation.warn_method('pbStoreItem', 'v21', '$bag.add(item, quantity)')
+    return add(item, quantity)
+  end
+
+  def pbStoreAllOrNone(item, quantity = 1)
+    Deprecation.warn_method('pbStoreAllOrNone', 'v21', '$bag.add_all(item, quantity)')
+    return add_all(item, quantity)
+  end
+
+  def pbChangeItem(old_item, new_item)
+    Deprecation.warn_method('pbChangeItem', 'v21', '$bag.replace_item(old_item, new_item)')
+    return replace_item(old_item, new_item)
+  end
+
+  def pbDeleteItem(item, quantity = 1)
+    Deprecation.warn_method('pbDeleteItem', 'v21', '$bag.remove(item, quantity)')
+    return remove(item, quantity)
+  end
+
+  def pbIsRegistered?(item)
+    Deprecation.warn_method('pbIsRegistered?', 'v21', '$bag.registered?(item)')
+    return registered?(item)
+  end
+
+  def pbRegisterItem(item)
+    Deprecation.warn_method('pbRegisterItem', 'v21', '$bag.register(item)')
+    register(item)
+  end
+
+  def pbUnregisterItem(item)
+    Deprecation.warn_method('pbUnregisterItem', 'v21', '$bag.unregister(item)')
+    unregister(item)
+  end
 end
 
-def pbHasItem?(*args)
-  return $PokemonBag.pbHasItem?(*args)
+def pbQuantity(item)
+  Deprecation.warn_method('pbQuantity', 'v21', '$bag.quantity(item)')
+  return $bag.quantity(item)
 end
 
-def pbCanStore?(*args)
-  return $PokemonBag.pbCanStore?(*args)
+def pbHasItem?(item)
+  Deprecation.warn_method('pbHasItem?', 'v21', '$bag.has?(item)')
+  return $bag.has?(item)
 end
 
-def pbStoreItem(*args)
-  return $PokemonBag.pbStoreItem(*args)
+def pbCanStore?(item, quantity = 1)
+  Deprecation.warn_method('pbCanStore?', 'v21', '$bag.can_add?(item, quantity)')
+  return $bag.can_add?(item, quantity)
 end
 
-def pbStoreAllOrNone(*args)
-  return $PokemonBag.pbStoreAllOrNone(*args)
+def pbStoreItem(item, quantity = 1)
+  Deprecation.warn_method('pbStoreItem', 'v21', '$bag.add(item, quantity)')
+  return $bag.add(item, quantity)
+end
+
+def pbStoreAllOrNone(item, quantity = 1)
+  Deprecation.warn_method('pbStoreAllOrNone', 'v21', '$bag.add_all(item, quantity)')
+  return $bag.add_all(item, quantity)
 end

Data/Scripts/016_UI/001_UI_PauseMenu.rb

@@ -192,7 +192,7 @@ class PokemonPauseMenu
         item = nil
         pbFadeOutIn {
           scene = PokemonBag_Scene.new
-          screen = PokemonBagScreen.new(scene,$PokemonBag)
+          screen = PokemonBagScreen.new(scene, $bag)
           item = screen.pbStartScreen
           (item) ? @scene.pbEndScene : @scene.pbRefresh
         }

Data/Scripts/016_UI/005_UI_Party.rb

@@ -1149,7 +1149,7 @@ class PokemonPartyScreen
 
   def pbPokemonScreen
     can_access_storage = false
-    if GameData::Item.exists?(:POKEMONBOXLINK) && $PokemonBag.pbHasItem?(:POKEMONBOXLINK)
+    if $bag.has?(:POKEMONBOXLINK)
       if !$game_switches[Settings::DISABLE_BOX_LINK_SWITCH] &&
          !$game_map.metadata&.has_flag?("DisableBoxLink")
         can_access_storage = true
@@ -1298,7 +1298,7 @@ class PokemonPartyScreen
         itemcommands[itemcommands.length]             = _INTL("Cancel")
         command = @scene.pbShowCommands(_INTL("Do what with an item?"),itemcommands)
         if cmdUseItem>=0 && command==cmdUseItem   # Use
-          item = @scene.pbUseItem($PokemonBag,pkmn) {
+          item = @scene.pbUseItem($bag,pkmn) {
             @scene.pbSetHelpText((@party.length>1) ? _INTL("Choose a Pokémon.") : _INTL("Choose Pokémon or cancel."))
           }
           if item
@@ -1306,7 +1306,7 @@ class PokemonPartyScreen
             pbRefreshSingle(pkmnid)
           end
         elsif cmdGiveItem>=0 && command==cmdGiveItem   # Give
-          item = @scene.pbChooseItem($PokemonBag) {
+          item = @scene.pbChooseItem($bag) {
             @scene.pbSetHelpText((@party.length>1) ? _INTL("Choose a Pokémon.") : _INTL("Choose Pokémon or cancel."))
           }
           if item

Data/Scripts/016_UI/006_UI_Summary.rb

@@ -1198,7 +1198,7 @@ class PokemonSummary_Scene
       item = nil
       pbFadeOutIn {
         scene = PokemonBag_Scene.new
-        screen = PokemonBagScreen.new(scene,$PokemonBag)
+        screen = PokemonBagScreen.new(scene, $bag)
         item = screen.pbChooseItemScreen(Proc.new { |itm| GameData::Item.get(itm).can_hold? })
       }
       if item

Data/Scripts/016_UI/007_UI_Bag.rb

@@ -25,7 +25,7 @@ class Window_PokemonBag < Window_DrawableCommand
   def pocket=(value)
     @pocket = value
     @item_max = (@filterlist) ? @filterlist[@pocket].length+1 : @bag.pockets[@pocket].length+1
-    self.index = @bag.getChoice(@pocket)
+    self.index = @bag.last_viewed_index(@pocket)
   end
 
   def page_row_max; return PokemonBag_Scene::ITEMSVISIBLE; end
@@ -79,7 +79,7 @@ class Window_PokemonBag < Window_DrawableCommand
          [@adapter.getDisplayName(item),rect.x,rect.y-2,false,baseColor,shadowColor]
       )
       if GameData::Item.get(item).is_important?
-        if @bag.pbIsRegistered?(item)
+        if @bag.registered?(item)
           pbDrawImagePositions(self.contents,[
              ["Graphics/Pictures/Bag/icon_register",rect.x+rect.width-72,rect.y+8,0,0,-1,24]
           ])
@@ -142,7 +142,7 @@ class PokemonBag_Scene
     @choosing   = choosing
     @filterproc = filterproc
     pbRefreshFilter
-    lastpocket = @bag.lastpocket
+    lastpocket = @bag.last_viewed_pocket
     numfilledpockets = @bag.pockets.length-1
     if @choosing
       numfilledpockets = 0
@@ -155,7 +155,7 @@ class PokemonBag_Scene
           numfilledpockets += 1 if @bag.pockets[i].length>0
         end
       end
-      lastpocket = (resetpocket) ? 1 : @bag.lastpocket
+      lastpocket = (resetpocket) ? 1 : @bag.last_viewed_pocket
       if (@filterlist && @filterlist[lastpocket].length==0) ||
          (!@filterlist && @bag.pockets[lastpocket].length==0)
         for i in 1...@bag.pockets.length
@@ -169,7 +169,7 @@ class PokemonBag_Scene
         end
       end
     end
-    @bag.lastpocket = lastpocket
+    @bag.last_viewed_pocket = lastpocket
     @sliderbitmap = AnimatedBitmap.new(_INTL("Graphics/Pictures/Bag/icon_slider"))
     @pocketbitmap = AnimatedBitmap.new(_INTL("Graphics/Pictures/Bag/icon_pocket"))
     @sprites = {}
@@ -193,7 +193,7 @@ class PokemonBag_Scene
     @sprites["itemlist"] = Window_PokemonBag.new(@bag,@filterlist,lastpocket,168,-8,314,40+32+ITEMSVISIBLE*32)
     @sprites["itemlist"].viewport    = @viewport
     @sprites["itemlist"].pocket      = lastpocket
-    @sprites["itemlist"].index       = @bag.getChoice(lastpocket)
+    @sprites["itemlist"].index       = @bag.last_viewed_index(lastpocket)
     @sprites["itemlist"].baseColor   = ITEMLISTBASECOLOR
     @sprites["itemlist"].shadowColor = ITEMLISTSHADOWCOLOR
     @sprites["itemicon"] = ItemIconSprite.new(48,Graphics.height-48,nil,@viewport)
@@ -251,13 +251,13 @@ class PokemonBag_Scene
 
   def pbRefresh
     # Set the background image
-    @sprites["background"].setBitmap(sprintf("Graphics/Pictures/Bag/bg_#{@bag.lastpocket}"))
+    @sprites["background"].setBitmap(sprintf("Graphics/Pictures/Bag/bg_#{@bag.last_viewed_pocket}"))
     # Set the bag sprite
-    fbagexists = pbResolveBitmap(sprintf("Graphics/Pictures/Bag/bag_#{@bag.lastpocket}_f"))
+    fbagexists = pbResolveBitmap(sprintf("Graphics/Pictures/Bag/bag_#{@bag.last_viewed_pocket}_f"))
     if $Trainer.female? && fbagexists
-      @sprites["bagsprite"].setBitmap("Graphics/Pictures/Bag/bag_#{@bag.lastpocket}_f")
+      @sprites["bagsprite"].setBitmap("Graphics/Pictures/Bag/bag_#{@bag.last_viewed_pocket}_f")
     else
-      @sprites["bagsprite"].setBitmap("Graphics/Pictures/Bag/bag_#{@bag.lastpocket}")
+      @sprites["bagsprite"].setBitmap("Graphics/Pictures/Bag/bag_#{@bag.last_viewed_pocket}")
     end
     # Draw the pocket icons
     @sprites["pocketicon"].bitmap.clear
@@ -283,7 +283,7 @@ class PokemonBag_Scene
     overlay.clear
     # Draw the pocket name
     pbDrawTextPositions(overlay,[
-       [PokemonBag.pocketNames[@bag.lastpocket],94,176,2,POCKETNAMEBASECOLOR,POCKETNAMESHADOWCOLOR]
+       [PokemonBag.pocket_names[@bag.last_viewed_pocket], 94, 176, 2, POCKETNAMEBASECOLOR, POCKETNAMESHADOWCOLOR]
     ])
     # Draw slider arrows
     showslider = false
@@ -353,7 +353,7 @@ class PokemonBag_Scene
             thispocket.insert(itemwindow.index,thispocket.delete_at(oldindex))
           end
           # Update selected item for current pocket
-          @bag.setChoice(itemwindow.pocket,itemwindow.index)
+          @bag.set_last_viewed_index(itemwindow.pocket,itemwindow.index)
           pbRefresh
         end
         if itemwindow.sorting
@@ -374,7 +374,7 @@ class PokemonBag_Scene
           if Input.trigger?(Input::LEFT)
             newpocket = itemwindow.pocket
             loop do
-              newpocket = (newpocket==1) ? PokemonBag.numPockets : newpocket-1
+              newpocket = (newpocket==1) ? PokemonBag.pocket_count : newpocket-1
               break if !@choosing || newpocket==itemwindow.pocket
               if @filterlist
                 break if @filterlist[newpocket].length>0
@@ -384,7 +384,7 @@ class PokemonBag_Scene
             end
             if itemwindow.pocket!=newpocket
               itemwindow.pocket = newpocket
-              @bag.lastpocket   = itemwindow.pocket
+              @bag.last_viewed_pocket = itemwindow.pocket
               thispocket = @bag.pockets[itemwindow.pocket]
               pbPlayCursorSE
               pbRefresh
@@ -392,7 +392,7 @@ class PokemonBag_Scene
           elsif Input.trigger?(Input::RIGHT)
             newpocket = itemwindow.pocket
             loop do
-              newpocket = (newpocket==PokemonBag.numPockets) ? 1 : newpocket+1
+              newpocket = (newpocket==PokemonBag.pocket_count) ? 1 : newpocket+1
               break if !@choosing || newpocket==itemwindow.pocket
               if @filterlist
                 break if @filterlist[newpocket].length>0
@@ -402,17 +402,17 @@ class PokemonBag_Scene
             end
             if itemwindow.pocket!=newpocket
               itemwindow.pocket = newpocket
-              @bag.lastpocket   = itemwindow.pocket
+              @bag.last_viewed_pocket = itemwindow.pocket
               thispocket = @bag.pockets[itemwindow.pocket]
               pbPlayCursorSE
               pbRefresh
             end
 #          elsif Input.trigger?(Input::SPECIAL)   # Register/unregister selected item
 #            if !@choosing && itemwindow.index<thispocket.length
-#              if @bag.pbIsRegistered?(itemwindow.item)
-#                @bag.pbUnregisterItem(itemwindow.item)
+#              if @bag.registered?(itemwindow.item)
+#                @bag.unregister(itemwindow.item)
 #              elsif pbCanRegisterItem?(itemwindow.item)
-#                @bag.pbRegisterItem(itemwindow.item)
+#                @bag.register(itemwindow.item)
 #              end
 #              pbPlayDecisionSE
 #              pbRefresh
@@ -474,7 +474,7 @@ class PokemonBagScreen
       end
       commands[cmdGive = commands.length]       = _INTL("Give") if $Trainer.pokemon_party.length > 0 && itm.can_hold?
       commands[cmdToss = commands.length]       = _INTL("Toss") if !itm.is_important? || $DEBUG
-      if @bag.pbIsRegistered?(item)
+      if @bag.registered?(item)
         commands[cmdRegister = commands.length] = _INTL("Deselect")
       elsif pbCanRegisterItem?(item)
         commands[cmdRegister = commands.length] = _INTL("Register")
@@ -508,7 +508,7 @@ class PokemonBagScreen
           }
         end
       elsif cmdToss>=0 && command==cmdToss   # Toss item
-        qty = @bag.pbQuantity(item)
+        qty = @bag.quantity(item)
         if qty>1
           helptext = _INTL("Toss out how many {1}?",itm.name_plural)
           qty = @scene.pbChooseNumber(helptext,qty)
@@ -517,15 +517,15 @@ class PokemonBagScreen
           itemname = itm.name_plural if qty>1
           if pbConfirm(_INTL("Is it OK to throw away {1} {2}?",qty,itemname))
             pbDisplay(_INTL("Threw away {1} {2}.",qty,itemname))
-            qty.times { @bag.pbDeleteItem(item) }
+            qty.times { @bag.remove(item) }
             @scene.pbRefresh
           end
         end
       elsif cmdRegister>=0 && command==cmdRegister   # Register item
-        if @bag.pbIsRegistered?(item)
-          @bag.pbUnregisterItem(item)
+        if @bag.registered?(item)
+          @bag.unregister(item)
         else
-          @bag.pbRegisterItem(item)
+          @bag.register(item)
         end
         @scene.pbRefresh
       elsif cmdDebug>=0 && command==cmdDebug   # Debug
@@ -542,7 +542,7 @@ class PokemonBagScreen
             break
           ### Change quantity ###
           when 0
-            qty = @bag.pbQuantity(item)
+            qty = @bag.quantity(item)
             itemplural = itm.name_plural
             params = ChooseNumberParams.new
             params.setRange(0, Settings::BAG_MAX_PER_SLOT)
@@ -550,9 +550,9 @@ class PokemonBagScreen
             newqty = pbMessageChooseNumber(
                _INTL("Choose new quantity of {1} (max. #{Settings::BAG_MAX_PER_SLOT}).",itemplural),params) { @scene.pbUpdate }
             if newqty>qty
-              @bag.pbStoreItem(item,newqty-qty)
+              @bag.add(item, newqty - qty)
             elsif newqty<qty
-              @bag.pbDeleteItem(item,qty-newqty)
+              @bag.remove(item, qty - newqty)
             end
             @scene.pbRefresh
             break if newqty==0
@@ -577,13 +577,13 @@ class PokemonBagScreen
 
   # UI logic for the item screen for choosing an item.
   def pbChooseItemScreen(proc=nil)
-    oldlastpocket = @bag.lastpocket
-    oldchoices = @bag.getAllChoices
+    oldlastpocket = @bag.last_viewed_pocket
+    oldchoices = @bag.last_pocket_selections.clone
     @scene.pbStartScene(@bag,true,proc)
     item = @scene.pbChooseItem
     @scene.pbEndScene
-    @bag.lastpocket = oldlastpocket
-    @bag.setAllChoices(oldchoices)
+    @bag.last_viewed_pocket = oldlastpocket
+    @bag.last_pocket_selections = oldchoices
     return item
   end
 
@@ -598,16 +598,16 @@ class PokemonBagScreen
       item = @scene.pbChooseItem
       break if !item
       itm = GameData::Item.get(item)
-      qty = storage.pbQuantity(item)
+      qty = storage.quantity(item)
       if qty>1 && !itm.is_important?
         qty = @scene.pbChooseNumber(_INTL("How many do you want to withdraw?"),qty)
       end
       next if qty<=0
-      if @bag.pbCanStore?(item,qty)
-        if !storage.pbDeleteItem(item,qty)
+      if @bag.can_add?(item,qty)
+        if !storage.remove(item,qty)
           raise "Can't delete items from storage"
         end
-        if !@bag.pbStoreItem(item,qty)
+        if !@bag.add(item,qty)
           raise "Can't withdraw items from storage"
         end
         @scene.pbRefresh
@@ -632,18 +632,18 @@ class PokemonBagScreen
       item = @scene.pbChooseItem
       break if !item
       itm = GameData::Item.get(item)
-      qty = @bag.pbQuantity(item)
+      qty = @bag.quantity(item)
       if qty>1 && !itm.is_important?
         qty = @scene.pbChooseNumber(_INTL("How many do you want to deposit?"),qty)
       end
       if qty>0
-        if !storage.pbCanStore?(item,qty)
+        if !storage.can_add?(item,qty)
           pbDisplay(_INTL("There's no room to store items."))
         else
-          if !@bag.pbDeleteItem(item,qty)
+          if !@bag.remove(item,qty)
             raise "Can't delete items from Bag"
           end
-          if !storage.pbStoreItem(item,qty)
+          if !storage.add(item,qty)
             raise "Can't deposit items to storage"
           end
           @scene.pbRefresh
@@ -671,7 +671,7 @@ class PokemonBagScreen
         @scene.pbDisplay(_INTL("That's too important to toss out!"))
         next
       end
-      qty = storage.pbQuantity(item)
+      qty = storage.quantity(item)
       itemname       = itm.name
       itemnameplural = itm.name_plural
       if qty>1
@@ -680,7 +680,7 @@ class PokemonBagScreen
       if qty>0
         itemname = itemnameplural if qty>1
         if pbConfirm(_INTL("Is it OK to throw away {1} {2}?",qty,itemname))
-          if !storage.pbDeleteItem(item,qty)
+          if !storage.remove(item,qty)
             raise "Can't delete items from storage"
           end
           @scene.pbRefresh

Data/Scripts/016_UI/016_UI_ReadyMenu.rb

@@ -75,7 +75,7 @@ class ReadyMenuButton < SpriteWrapper
     ]
     if !@command[2]
       if !GameData::Item.get(@command[0]).is_important?
-        qty = $PokemonBag.pbQuantity(@command[0])
+        qty = $bag.quantity(@command[0])
         if qty>99
           textpos.push([_INTL(">99"),230,16,1,
              Color.new(248,248,248),Color.new(40,40,40),1])
@@ -110,7 +110,7 @@ class PokemonReadyMenu_Scene
     for i in 0...@commands[1].length
       @itemcommands.push(@commands[1][i][1])
     end
-    @index = $PokemonBag.registeredIndex
+    @index = $bag.ready_menu_selection
     if @index[0]>=@movecommands.length && @movecommands.length>0
       @index[0] = @movecommands.length-1
     end
@@ -312,9 +312,9 @@ def pbUseKeyItem
     end
   end
   real_items = []
-  for i in $PokemonBag.registeredItems
+  for i in $bag.registered_items
     itm = GameData::Item.get(i).id
-    real_items.push(itm) if $PokemonBag.pbHasItem?(itm)
+    real_items.push(itm) if $bag.has?(itm)
   end
   if real_items.length == 0 && real_moves.length == 0
     pbMessage(_INTL("An item in the Bag can be registered to this key for instant use."))

Data/Scripts/016_UI/017_UI_PokemonStorage.rb

@@ -1873,7 +1873,7 @@ class PokemonStorageScreen
     if pokemon.item
       itemname = pokemon.item.name
       if pbConfirm(_INTL("Take this {1}?",itemname))
-        if !$PokemonBag.pbStoreItem(pokemon.item)
+        if !$bag.add(pokemon.item)
           pbDisplay(_INTL("Can't store the {1}.",itemname))
         else
           pbDisplay(_INTL("Took the {1}.",itemname))
@@ -1882,11 +1882,11 @@ class PokemonStorageScreen
         end
       end
     else
-      item = scene.pbChooseItem($PokemonBag)
+      item = scene.pbChooseItem($bag)
       if item
         itemname = GameData::Item.get(item).name
         pokemon.item = item
-        $PokemonBag.pbDeleteItem(item)
+        $bag.remove(item)
         pbDisplay(_INTL("{1} is now being held.",itemname))
         @scene.pbHardRefresh
       end

Data/Scripts/016_UI/019_UI_PC.rb

@@ -134,14 +134,14 @@ def pbPCItemStorage
       else
         pbFadeOutIn {
           scene = WithdrawItemScene.new
-          screen = PokemonBagScreen.new(scene,$PokemonBag)
+          screen = PokemonBagScreen.new(scene, $bag)
           screen.pbWithdrawItemScreen
         }
       end
     when 1   # Deposit Item
       pbFadeOutIn {
         scene = PokemonBag_Scene.new
-        screen = PokemonBagScreen.new(scene,$PokemonBag)
+        screen = PokemonBagScreen.new(scene, $bag)
         screen.pbDepositItemScreen
       }
     when 2   # Toss Item
@@ -153,7 +153,7 @@ def pbPCItemStorage
       else
         pbFadeOutIn {
           scene = TossItemScene.new
-          screen = PokemonBagScreen.new(scene,$PokemonBag)
+          screen = PokemonBagScreen.new(scene, $bag)
           screen.pbTossItemScreen
         }
       end
@@ -191,7 +191,7 @@ def pbPCMailbox
           }
         when 1   # Move to Bag
           if pbConfirmMessage(_INTL("The message will be lost. Is that OK?"))
-            if $PokemonBag.pbStoreItem($PokemonGlobal.mailbox[mailIndex].item)
+            if $bag.add($PokemonGlobal.mailbox[mailIndex].item)
               pbMessage(_INTL("The Mail was returned to the Bag with its message erased."))
               $PokemonGlobal.mailbox.delete_at(mailIndex)
             else

Data/Scripts/016_UI/020_UI_PokeMart.rb

@@ -15,7 +15,7 @@ class PokemonMartAdapter
   end
 
   def getInventory
-    return $PokemonBag
+    return $bag
   end
 
   def getName(item)
@@ -45,7 +45,7 @@ class PokemonMartAdapter
   end
 
   def getQuantity(item)
-    return $PokemonBag.pbQuantity(item)
+    return $bag.quantity(item)
   end
 
   def showQuantity?(item)
@@ -74,11 +74,11 @@ class PokemonMartAdapter
   end
 
   def addItem(item)
-    return $PokemonBag.pbStoreItem(item)
+    return $bag.add(item)
   end
 
   def removeItem(item)
-    return $PokemonBag.pbDeleteItem(item)
+    return $bag.remove(item)
   end
 end
 
@@ -241,7 +241,7 @@ class PokemonMart_Scene
   end
 
   def pbStartSellScene(bag, adapter)
-    if $PokemonBag
+    if $bag
       pbStartSellScene2(bag, adapter)
     else
       pbStartBuyOrSellScene(false, bag, adapter)
@@ -588,9 +588,9 @@ class PokemonMartScreen
         pbDisplayPaused(_INTL("You have no more room in the Bag."))
       else
         @adapter.setMoney(@adapter.getMoney-price)
-        @stock.delete_if { |item| GameData::Item.get(item).is_important? && $PokemonBag.pbHasItem?(item) }
+        @stock.delete_if { |item| GameData::Item.get(item).is_important? && $bag.has?(item) }
         pbDisplayPaused(_INTL("Here you are! Thank you!")) { pbSEPlay("Mart buy item") }
-        if quantity >= 10 && $PokemonBag && GameData::Item.exists?(:PREMIERBALL)
+        if quantity >= 10 && $bag && GameData::Item.exists?(:PREMIERBALL)
           if Settings::MORE_BONUS_PREMIER_BALLS && GameData::Item.get(item).is_poke_ball?
             premier_balls_added = 0
             (quantity / 10).times do
@@ -655,7 +655,7 @@ end
 #
 #===============================================================================
 def pbPokemonMart(stock,speech=nil,cantsell=false)
-  stock.delete_if { |item| GameData::Item.get(item).is_important? && $PokemonBag.pbHasItem?(item) }
+  stock.delete_if { |item| GameData::Item.get(item).is_important? && $bag.has?(item) }
   commands = []
   cmdBuy  = -1
   cmdSell = -1

Data/Scripts/016_UI/023_UI_MysteryGift.rb

@@ -396,8 +396,8 @@ def pbReceiveMysteryGift(id)
   elsif gift[1]>0   # Item
     item=gift[2]
     qty=gift[1]
-    if $PokemonBag.pbCanStore?(item,qty)
-      $PokemonBag.pbStoreItem(item,qty)
+    if $bag.can_add?(item,qty)
+      $bag.add(item,qty)
       itm = GameData::Item.get(item)
       itemname=(qty>1) ? itm.name_plural : itm.name
       if item == :LEFTOVERS

Data/Scripts/017_Minigames/002_Minigame_TripleTriad.rb

@@ -301,7 +301,7 @@ class TriadScene
       elsif Input.trigger?(Input::USE)
         break if chosenCards.length==@battle.maxCards
         item = cardStorage[command.index]
-        if !item || @battle.pbQuantity(cardStorage,item[0])==0
+        if !item || @battle.quantity(cardStorage,item[0])==0
           pbPlayBuzzerSE
         else
           pbPlayDecisionSE
@@ -631,17 +631,17 @@ class TriadScreen
     return @board[y*@width+x]
   end
 
-  def pbQuantity(items,item)
-    return ItemStorageHelper.pbQuantity(items, item)
+  def quantity(items,item)
+    return ItemStorageHelper.quantity(items, item)
   end
 
   def pbAdd(items,item)
-    return ItemStorageHelper.pbStoreItem(items,$PokemonGlobal.triads.maxSize,
-       $PokemonGlobal.triads.maxPerSlot,item,1)
+    return ItemStorageHelper.add(items, $PokemonGlobal.triads.maxSize,
+       TriadStorage::MAX_PER_SLOT, item, 1)
   end
 
   def pbSubtract(items, item)
-    return ItemStorageHelper.pbDeleteItem(items, item, 1)
+    return ItemStorageHelper.remove(items, item, 1)
   end
 
   def flipBoard(x,y,attackerParam=nil,recurse=false)
@@ -718,11 +718,8 @@ class TriadScreen
     count = 0
     for i in 0...$PokemonGlobal.triads.length
       item = $PokemonGlobal.triads[i]
-      ItemStorageHelper.pbStoreItem(@triadCards,
-         $PokemonGlobal.triads.maxSize,
-         $PokemonGlobal.triads.maxPerSlot,
-         item[0],item[1]
-      )
+      ItemStorageHelper.add(@triadCards, $PokemonGlobal.triads.maxSize,
+         TriadStorage::MAX_PER_SLOT, item[0], item[1])
       count += item[1]   # Add item count to total count
     end
     @board = []
@@ -880,15 +877,15 @@ class TriadScreen
       if @trade==1
         # Keep only cards of your color
         for card in originalCards
-          $PokemonGlobal.triads.pbDeleteItem(card)
+          $PokemonGlobal.triads.remove(card)
         end
         for i in cards
-          $PokemonGlobal.triads.pbStoreItem(i)
+          $PokemonGlobal.triads.add(i)
         end
         for i in 0...@width*@height
           if board[i].owner==1
             card = GameData::Species.get_species_form(board[i].card.species, board[i].card.form).id
-            $PokemonGlobal.triads.pbStoreItem(card)
+            $PokemonGlobal.triads.add(card)
           end
         end
         @scene.pbDisplayPaused(_INTL("Kept all cards of your color."))
@@ -898,34 +895,34 @@ class TriadScreen
       result = 1
       if prize
         species_data = GameData::Species.try_get(prize)
-        if species_data && $PokemonGlobal.triads.pbStoreItem(species_data.id)
+        if species_data && $PokemonGlobal.triads.add(species_data.id)
           @scene.pbDisplayPaused(_INTL("Got opponent's {1} card.", species_data.name))
         end
       else
         case @trade
         when 0   # Gain 1 random card from opponent's deck
           card = originalOpponentCards[rand(originalOpponentCards.length)]
-          if $PokemonGlobal.triads.pbStoreItem(card)
+          if $PokemonGlobal.triads.add(card)
             cardname = GameData::Species.get(card).name
             @scene.pbDisplayPaused(_INTL("Got opponent's {1} card.",cardname))
           end
         when 1   # Keep only cards of your color
           for card in originalCards
-            $PokemonGlobal.triads.pbDeleteItem(card)
+            $PokemonGlobal.triads.remove(card)
           end
           for i in cards
-            $PokemonGlobal.triads.pbStoreItem(i)
+            $PokemonGlobal.triads.add(i)
           end
           for i in 0...@width*@height
             if board[i].owner==1
               card = GameData::Species.get_species_form(board[i].card.species, board[i].card.form).id
-              $PokemonGlobal.triads.pbStoreItem(card)
+              $PokemonGlobal.triads.add(card)
             end
           end
           @scene.pbDisplayPaused(_INTL("Kept all cards of your color."))
         when 2   # Gain all opponent's cards
           for card in originalOpponentCards
-            $PokemonGlobal.triads.pbStoreItem(card)
+            $PokemonGlobal.triads.add(card)
           end
           @scene.pbDisplayPaused(_INTL("Got all opponent's cards."))
         end
@@ -936,26 +933,26 @@ class TriadScreen
       case @trade
       when 0   # Lose 1 random card from your deck
         card = originalCards[rand(originalCards.length)]
-        $PokemonGlobal.triads.pbDeleteItem(card)
+        $PokemonGlobal.triads.remove(card)
         cardname = GameData::Species.get(card).name
         @scene.pbDisplayPaused(_INTL("Opponent won your {1} card.",cardname))
       when 1   # Keep only cards of your color
         for card in originalCards
-          $PokemonGlobal.triads.pbDeleteItem(card)
+          $PokemonGlobal.triads.remove(card)
         end
         for i in cards
-          $PokemonGlobal.triads.pbStoreItem(i)
+          $PokemonGlobal.triads.add(i)
         end
         for i in 0...@width*@height
           if board[i].owner==1
             card = GameData::Species.get_species_form(board[i].card.species, board[i].card.form).id
-            $PokemonGlobal.triads.pbStoreItem(card)
+            $PokemonGlobal.triads.add(card)
           end
         end
         @scene.pbDisplayPaused(_INTL("Kept all cards of your color.",cardname))
       when 2   # Lose all your cards
         for card in originalCards
-          $PokemonGlobal.triads.pbDeleteItem(card)
+          $PokemonGlobal.triads.remove(card)
         end
         @scene.pbDisplayPaused(_INTL("Opponent won all your cards."))
       end
@@ -999,54 +996,57 @@ end
 class TriadStorage
   attr_reader :items
 
+  MAX_PER_SLOT = 999   # Max. number of items per slot
+
   def initialize
     @items = []
   end
 
-  def maxSize
-    return @items.length + 1
-  end
-
-  def maxPerSlot
-    return 999
-  end
-
-  def empty?
-    return @items.length == 0
-  end
-
-  def length
-    return @items.length
-  end
-
   def [](i)
     return @items[i]
   end
 
-  def getItem(index)
+  def length
+    return @items.length
+  end
+
+  def empty?
+    return @items.length == 0
+  end
+
+  def maxSize
+    return @items.length + 1
+  end
+
+  def clear
+    @items.clear
+  end
+
+  def get_item(index)
     return nil if index < 0 || index >= @items.length
     return @items[index][0]
   end
 
-  def getCount(index)
+  # Number of the item in the given index
+  def get_item_count(index)
     return 0 if index < 0 || index >= @items.length
     return @items[index][1]
   end
 
-  def pbQuantity(item)
-    return ItemStorageHelper.pbQuantity(@items, item)
+  def quantity(item)
+    return ItemStorageHelper.quantity(@items, item)
   end
 
-  def pbCanStore?(item, qty = 1)
-    return ItemStorageHelper.pbCanStore?(@items, self.maxSize, self.maxPerSlot, item, qty)
+  def can_add?(item, qty = 1)
+    return ItemStorageHelper.can_add?(@items, self.maxSize, MAX_PER_SLOT, item, qty)
   end
 
-  def pbStoreItem(item, qty = 1)
-    return ItemStorageHelper.pbStoreItem(@items, self.maxSize, self.maxPerSlot, item, qty)
+  def add(item, qty = 1)
+    return ItemStorageHelper.add(@items, self.maxSize, MAX_PER_SLOT, item, qty)
   end
 
-  def pbDeleteItem(item, qty = 1)
-    return ItemStorageHelper.pbDeleteItem(@items, item, qty)
+  def remove(item, qty = 1)
+    return ItemStorageHelper.remove(@items, item, qty)
   end
 end
 
@@ -1126,11 +1126,11 @@ def pbBuyTriads
         pbMessage(_INTL("You don't have enough money."))
         next
       end
-      if !$PokemonGlobal.triads.pbCanStore?(item,quantity)
+      if !$PokemonGlobal.triads.can_add?(item, quantity)
         pbMessage(_INTL("You have no room for more cards."))
         next
       end
-      $PokemonGlobal.triads.pbStoreItem(item,quantity)
+      $PokemonGlobal.triads.add(item, quantity)
       $Trainer.money -= price
       goldwindow.text = _INTL("Money:\r\n{1}",pbGetGoldString)
       pbMessage(_INTL("Here you are! Thank you!\\se[Mart buy item]"))
@@ -1171,9 +1171,9 @@ def pbSellTriads
   preview.x = Graphics.width*3/4-40
   preview.y = Graphics.height/2-48
   preview.z = 4
-  item = $PokemonGlobal.triads.getItem(cmdwindow.index)
+  item = $PokemonGlobal.triads.get_item(cmdwindow.index)
   preview.bitmap = TriadCard.new(item).createBitmap(1)
-  olditem = $PokemonGlobal.triads.getItem(cmdwindow.index)
+  olditem = $PokemonGlobal.triads.get_item(cmdwindow.index)
   done = false
   Graphics.frame_reset
   while !done
@@ -1183,7 +1183,7 @@ def pbSellTriads
       cmdwindow.active = true
       cmdwindow.update
       goldwindow.update
-      item = $PokemonGlobal.triads.getItem(cmdwindow.index)
+      item = $PokemonGlobal.triads.get_item(cmdwindow.index)
       if olditem != item
         preview.bitmap.dispose if preview.bitmap
         if item
@@ -1200,9 +1200,9 @@ def pbSellTriads
           done = true
           break
         end
-        item = $PokemonGlobal.triads.getItem(cmdwindow.index)
+        item = $PokemonGlobal.triads.get_item(cmdwindow.index)
         itemname = GameData::Species.get(item).name
-        quantity = $PokemonGlobal.triads.pbQuantity(item)
+        quantity = $PokemonGlobal.triads.quantity(item)
         price = TriadCard.new(item).price
         if price==0
           pbDisplayPaused(_INTL("The {1} card? Oh, no. I can't buy that.",itemname))
@@ -1224,7 +1224,7 @@ def pbSellTriads
           if pbConfirmMessage(_INTL("I can pay ${1}. Would that be OK?",price.to_s_formatted))
             $Trainer.money += price
             goldwindow.text = _INTL("Money:\r\n{1}",pbGetGoldString)
-            $PokemonGlobal.triads.pbDeleteItem(item,quantity)
+            $PokemonGlobal.triads.remove(item,quantity)
             pbMessage(_INTL("Turned over the {1} card and received ${2}.\\se[Mart buy item]",itemname,price.to_s_formatted))
             commands = []
             for i in 0...$PokemonGlobal.triads.length
@@ -1277,7 +1277,7 @@ def pbTriadList
       if lastIndex!=cmdwindow.index
         sprite.bitmap.dispose if sprite.bitmap
         if cmdwindow.index<$PokemonGlobal.triads.length
-          sprite.bitmap = TriadCard.new($PokemonGlobal.triads.getItem(cmdwindow.index)).createBitmap(1)
+          sprite.bitmap = TriadCard.new($PokemonGlobal.triads.get_item(cmdwindow.index)).createBitmap(1)
         end
         lastIndex = cmdwindow.index
       end
@@ -1303,7 +1303,7 @@ end
 def pbGiveTriadCard(species, quantity = 1)
   sp = GameData::Species.try_get(species)
   return false if !sp
-  return false if !$PokemonGlobal.triads.pbCanStore?(sp.id, quantity)
-  $PokemonGlobal.triads.pbStoreItem(sp.id, quantity)
+  return false if !$PokemonGlobal.triads.can_add?(sp.id, quantity)
+  $PokemonGlobal.triads.add(sp.id, quantity)
   return true
 end

Data/Scripts/017_Minigames/003_Minigame_SlotMachine.rb

@@ -388,7 +388,7 @@ end
 
 
 def pbSlotMachine(difficulty=1)
-  if GameData::Item.exists?(:COINCASE) && !$PokemonBag.pbHasItem?(:COINCASE)
+  if !$bag.has?(:COINCASE)
     pbMessage(_INTL("It's a Slot Machine."))
   elsif $Trainer.coins == 0
     pbMessage(_INTL("You don't have any Coins to play!"))

Data/Scripts/017_Minigames/004_Minigame_VoltorbFlip.rb

@@ -614,7 +614,7 @@ end
 
 
 def pbVoltorbFlip
-  if GameData::Item.exists?(:COINCASE) && !$PokemonBag.pbHasItem?(:COINCASE)
+  if !$bag.has?(:COINCASE)
     pbMessage(_INTL("You can't play unless you have a Coin Case."))
   elsif $Trainer.coins == Settings::MAX_COINS
     pbMessage(_INTL("Your Coin Case is full!"))

Data/Scripts/017_Minigames/006_Minigame_Mining.rb

@@ -586,7 +586,7 @@ class MiningGameScene
   def pbGiveItems
     if @itemswon.length>0
       for i in @itemswon
-        if $PokemonBag.pbStoreItem(i)
+        if $bag.add(i)
           pbMessage(_INTL("One {1} was obtained.\\se[Mining item get]\\wtnp[30]",
              GameData::Item.get(i).name))
         else

Data/Scripts/020_Debug/003_Debug menus/002_Debug_MenuCommands.rb

@@ -481,7 +481,7 @@ DebugMenuCommands.register("additem", {
         qty = pbMessageChooseNumber(_INTL("Add how many {1}?",
            GameData::Item.get(item).name_plural), params)
         if qty > 0
-          $PokemonBag.pbStoreItem(item, qty)
+          $bag.add(item, qty)
           pbMessage(_INTL("Gave {1}x {2}.", qty, GameData::Item.get(item).name))
         end
       end
@@ -500,11 +500,11 @@ DebugMenuCommands.register("fillbag", {
     params.setCancelValue(0)
     qty = pbMessageChooseNumber(_INTL("Choose the number of items."), params)
     if qty > 0
-      $PokemonBag.clear
-      # NOTE: This doesn't simply use $PokemonBag.pbStoreItem for every item in
-      #       turn, because that's really slow when done in bulk.
+      $bag.clear
+      # NOTE: This doesn't simply use $bag.add for every item in turn, because
+      #       that's really slow when done in bulk.
       pocket_sizes = Settings::BAG_MAX_POCKET_SIZE
-      bag = $PokemonBag.pockets   # Called here so that it only rearranges itself once
+      bag = $bag.pockets   # Called here so that it only rearranges itself once
       GameData::Item.each do |i|
         next if !pocket_sizes[i.pocket] || pocket_sizes[i.pocket] == 0
         next if pocket_sizes[i.pocket] > 0 && bag[i.pocket].length >= pocket_sizes[i.pocket]
@@ -523,7 +523,7 @@ DebugMenuCommands.register("emptybag", {
   "name"        => _INTL("Empty Bag"),
   "description" => _INTL("Remove all items from the Bag."),
   "effect"      => proc {
-    $PokemonBag.clear
+    $bag.clear
     pbMessage(_INTL("The Bag was cleared."))
   }
 })

Data/Scripts/021_Compiler/004_Compiler_MapsAndEvents.rb

@@ -926,7 +926,7 @@ module Compiler
               list.delete_at(i)
               newEvents = []
               if cost==0
-                push_branch(newEvents,"$PokemonBag.pbCanStore?(:#{itemname})",oldIndent)
+                push_branch(newEvents,"$bag.can_add?(:#{itemname})",oldIndent)
                 push_text(newEvents,_INTL("Here you go!"),oldIndent+1)
                 push_script(newEvents,"pbReceiveItem(:#{itemname})",oldIndent+1)
                 push_else(newEvents,oldIndent+1)
@@ -934,7 +934,7 @@ module Compiler
                 push_branch_end(newEvents,oldIndent+1)
               else
                 push_event(newEvents,111,[7,cost,0],oldIndent)
-                push_branch(newEvents,"$PokemonBag.pbCanStore?(:#{itemname})",oldIndent+1)
+                push_branch(newEvents,"$bag.can_add?(:#{itemname})",oldIndent+1)
                 push_event(newEvents,125,[1,0,cost],oldIndent+2)
                 push_text(newEvents,_INTL("\\GHere you go!"),oldIndent+2)
                 push_script(newEvents,"pbReceiveItem(:#{itemname})",oldIndent+2)