Many more Rubocop-inspired code improvements

Data/Scripts/013_Items/001_Item_Utilities.rb

@@ -145,10 +145,10 @@ def pbChangeLevel(pkmn, new_level, scene)
   old_special_attack  = pkmn.spatk
   old_special_defense = pkmn.spdef
   old_speed           = pkmn.speed
-  if pkmn.level > new_level
-    pkmn.level = new_level
-    pkmn.calc_stats
-    scene.pbRefresh
+  pkmn.level = new_level
+  pkmn.calc_stats
+  scene.pbRefresh
+  if old_level > new_level
     if scene.is_a?(PokemonPartyScreen)
       scene.pbDisplay(_INTL("{1} dropped to Lv. {2}!", pkmn.name, pkmn.level))
     else
@@ -165,10 +165,7 @@ def pbChangeLevel(pkmn, new_level, scene)
     pbTopRightWindow(_INTL("Max. HP<r>{1}\r\nAttack<r>{2}\r\nDefense<r>{3}\r\nSp. Atk<r>{4}\r\nSp. Def<r>{5}\r\nSpeed<r>{6}",
        pkmn.totalhp, pkmn.attack, pkmn.defense, pkmn.spatk, pkmn.spdef, pkmn.speed), scene)
   else
-    pkmn.level = new_level
     pkmn.changeHappiness("vitamin")
-    pkmn.calc_stats
-    scene.pbRefresh
     if scene.is_a?(PokemonPartyScreen)
       scene.pbDisplay(_INTL("{1} grew to Lv. {2}!", pkmn.name, pkmn.level))
     else
@@ -898,7 +895,7 @@ def pbChooseApricorn(var = 0)
   pbFadeOutIn {
     scene = PokemonBag_Scene.new
     screen = PokemonBagScreen.new(scene, $bag)
-    ret = screen.pbChooseItemScreen(Proc.new { |item| GameData::Item.get(item).is_apricorn? })
+    ret = screen.pbChooseItemScreen(proc { |item| GameData::Item.get(item).is_apricorn? })
   }
   $game_variables[var] = ret || :NONE if var > 0
   return ret
@@ -909,7 +906,7 @@ def pbChooseFossil(var = 0)
   pbFadeOutIn {
     scene = PokemonBag_Scene.new
     screen = PokemonBagScreen.new(scene, $bag)
-    ret = screen.pbChooseItemScreen(Proc.new { |item| GameData::Item.get(item).is_fossil? })
+    ret = screen.pbChooseItemScreen(proc { |item| GameData::Item.get(item).is_fossil? })
   }
   $game_variables[var] = ret || :NONE if var > 0
   return ret

Data/Scripts/013_Items/002_Item_Effects.rb

@@ -127,7 +127,7 @@ Events.onStepTaken += proc {
           pbFadeOutIn {
             scene = PokemonBag_Scene.new
             screen = PokemonBagScreen.new(scene, $bag)
-            ret = screen.pbChooseItemScreen(Proc.new { |item|
+            ret = screen.pbChooseItemScreen(proc { |item|
               [:REPEL, :SUPERREPEL, :MAXREPEL].include?(item)
             })
           }

Data/Scripts/013_Items/005_Item_PokeRadar.rb

@@ -208,7 +208,7 @@ Events.onWildBattleEnd += proc { |_sender, e|
   species  = e[0]
   level    = e[1]
   decision = e[2]
-  if $game_temp.poke_radar_data && (decision == 1 || decision == 4)   # Defeated/caught
+  if $game_temp.poke_radar_data && [1, 4].include?(decision)   # Defeated/caught
     $game_temp.poke_radar_data[0] = species
     $game_temp.poke_radar_data[1] = level
     $game_temp.poke_radar_data[2] += 1