Merge pull request #560 from bryanthaboi/dev

Layout interactive UI against love.window.getSafeArea so notch, Dynamic Island, and home-indicator insets no longer clip controls, while keeping the game framebuffer edge-to-edge.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/gameboy-hardware-limitations.md

@@ -12,7 +12,7 @@ this port.
 
 | # | Mechanic | Value | Why the Game Boy had this limit | Where it lives here |
 |---|---|---|---|---|
-| 1 | Bag capacity | 20 item slots | `wNumBagItems` save block was a fixed 20-entry id/quantity array in SRAM | `src/inventory/Bag.lua:8` (`Bag.CAPACITY = 20`) |
+| 1 | Bag capacity | 20 item slots by default | `wNumBagItems` save block was a fixed 20-entry id/quantity array in SRAM | `Data.constants.bagSize`, read by `src/inventory/Bag.lua` (`Bag.capacity`) |
 | 2 | Party size | 6 Pokémon | `wPartyMon1..6` were 6 fixed save-RAM slots | `src/pokemon/Party.lua:5` (`Party.MAX = 6`) |
 | 3 | PC storage | 12 boxes × 20 Pokémon | `wBoxDataStart` / Bill's PC allocated a fixed 12×20 SRAM block | `src/pokemon/Boxes.lua:7-8` |
 | 4 | Moves per Pokémon | 4 | Fixed 4-move-slot field in the party/box Pokémon struct | `src/pokemon/Pokemon.lua:20`, enforced again in `src/battle/BattleState.lua:1941` |
@@ -38,6 +38,10 @@ this port.
 
 ## Notes
 
+- Mods may patch `constants.bagSize` through the public content registry. The
+  native `save.lua` format keeps every existing item when the configured
+  limit changes; exporting to a cartridge `.sav` still writes only the first
+  20 bag slots because the original SRAM layout has no room for more.
 - PC Box **overflow handling** was deliberately changed even though the
   20×12 box *shape* was kept faithful: instead of Gen 1's "full box discards
   or blocks the deposit," this port spills into the next box with room.

docs/new-features.md

@@ -380,7 +380,8 @@ semantics - so the two windows read as one app. Six tabs:
   party dock, so deposit and withdraw live in one place. Empty slots are
   clickable and create a mon there.
 - **Items**: money, a searchable item picker (replacing the arrows that
-  cycled one id at a time through ~250 items), the 20-slot bag, PC storage
+  cycled one id at a time through ~250 items), the configurable bag (20 slots
+  by default), PC storage
   with no slot cap, and the eight badges as toggle chips.
 - **Events**: flags, defeated trainers, taken items and per-map object
   toggles, with a real filter field and a two-column paged grid.

main.lua

@@ -476,10 +476,14 @@ function love.mousepressed(x, y, button, istouch)
     -- meant two choose() calls and two stacked SAF picker activities: the
     -- player picked their ROM, the top picker closed, and the second was still
     -- underneath asking for it again, which is the "import the file twice"
-    -- in #553.  Filtering on istouch rather than on the OS keeps a real mouse
+    -- in #553.  Filtering on istouch keeps a real mouse (DeX, a Chromebook, a
-    -- (DeX, a Chromebook, a USB mouse) working, which an Android-wide return
+    -- USB mouse) working, which an Android-wide return would have broken.
-    -- would have broken.
+    --
-    if istouch then return end
+    -- ANDROID ONLY, and the OS test is load bearing: love.touchpressed above
+    -- returns early on iOS and never forwards, so there the synthesized mouse
+    -- press is the ONLY event the launcher gets.  Filtering istouch on both
+    -- killed every tap on iOS outright.
+    if istouch and love.system.getOS() == "Android" then return end
     return Importer:mousepressed(x, y, button)
   end
   if editorMode and EditorApp.mousepressed then

mods/nuzlocke/main.lua

@@ -156,7 +156,7 @@ return function(mod)
           caughtAreas()[areaKey(self.game, self)] = "DUPES_LOST"
           mod.save:set("caught_areas", caughtAreas())
         end
-        Bag.add(self.game.save, ball, 1)
+        Bag.add(self.game.save, ball, 1, self.game.data)
         self:say(reason == "area" and "This area already\nhas a captured POKéMON!"
           or "You already have\nthis POKéMON family!")
         return

src/core/Data.lua

@@ -14,12 +14,12 @@ local MODULES = {
 -- Optional for compatibility with developer and stale caches.
 local OPTIONAL = { "audio", "palettes", "icons" }
 
--- The rules the engine still carries as literals.  The constants registry
+-- Vanilla defaults for rules exposed through the constants registry.  A
--- deep-merges over these, so a value has to exist before a mod can patch
+-- value has to exist before a mod can patch it; each one matches the
--- it; each one is the number the engine hard-codes today, so seeding them
+-- engine's no-mod behavior, so seeding them changes nothing on a vanilla
--- changes nothing on a mod-free boot.
+-- boot.
 local CONSTANT_DEFAULTS = {
-  bagSize = 20,                 -- BAG_ITEM_CAPACITY (src/inventory/Bag.lua)
+  bagSize = 20,                 -- BAG_ITEM_CAPACITY (Bag.capacity fallback)
   partyMax = 6,                 -- PARTY_LENGTH (src/pokemon/Party.lua)
   boxCount = 12, boxSize = 20,  -- Bill's PC (src/pokemon/Boxes.lua)
   moveMax = 4,

src/core/SafeArea.lua

@@ -0,0 +1,40 @@
+-- Usable window rect for mobile chrome (notch / Dynamic Island / home
+-- indicator / Android display cutouts).  Wraps love.window.getSafeArea when
+-- the engine provides it; otherwise the full graphics window.
+--
+-- Desktop and headless stubs return the full window, so callers can always
+-- layout against this rect without platform branches.  Interactive chrome
+-- (touch overlay, launcher) should prefer this over getDimensions; the game
+-- canvas may still letterbox into the full framebuffer for immersion.
+
+local SafeArea = {}
+
+function SafeArea.rect()
+  local ww, wh = 0, 0
+  if love and love.graphics and love.graphics.getDimensions then
+    ww, wh = love.graphics.getDimensions()
+  end
+  if ww <= 0 then ww = 1 end
+  if wh <= 0 then wh = 1 end
+
+  if not (love and love.window and love.window.getSafeArea) then
+    return 0, 0, ww, wh
+  end
+
+  local x, y, w, h = love.window.getSafeArea()
+  if type(x) ~= "number" or type(y) ~= "number"
+     or type(w) ~= "number" or type(h) ~= "number"
+     or w <= 0 or h <= 0 then
+    return 0, 0, ww, wh
+  end
+
+  -- Clamp to the drawable window so a bad / mid-rotation backend cannot
+  -- push layout outside the surface.
+  x = math.max(0, math.min(x, ww))
+  y = math.max(0, math.min(y, wh))
+  w = math.max(1, math.min(w, ww - x))
+  h = math.max(1, math.min(h, wh - y))
+  return x, y, w, h
+end
+
+return SafeArea

src/core/SaveData.lua

@@ -1058,7 +1058,7 @@ local function reclaim(save, data, report)
     if type(entry) == "table" and known(data.items, entry.id) then
       table.remove(orphaned.items, i)
       if entry.from == "pcItems" or type(save.inventory) ~= "table"
-          or not Bag.add(save, entry.id, entry.count or 1) then
+          or not Bag.add(save, entry.id, entry.count or 1, data) then
         save.pcItems = save.pcItems or {}
         save.pcItems[entry.id] = (save.pcItems[entry.id] or 0) + (entry.count or 1)
       end

src/core/TouchControls.lua

@@ -23,6 +23,7 @@
 -- and a player rebind can never detach the overlay.
 
 local Input = require("src.core.Input")
+local SafeArea = require("src.core.SafeArea")
 
 local TouchControls = {}
 
@@ -92,20 +93,23 @@ function TouchControls.normalizeConfig(tc)
   return out
 end
 
--- Pure default layout in LOVE units for a given window size.  Shared by
+-- Pure default layout in LOVE units for a usable rect of size ww x wh at
--- layout() and the editor's Reset path so defaults stay in one place.
+-- origin (ox, oy).  Shared by layout() and the editor's Reset path so
-function TouchControls.defaultLayout(ww, wh)
+-- defaults stay in one place.  ox/oy default to 0 for the headless tests
+-- and for callers that already pass a full-window size.
+function TouchControls.defaultLayout(ww, wh, ox, oy)
+  ox, oy = ox or 0, oy or 0
   local short = math.min(ww, wh)
   local dpadW = math.min(180, short * 0.34)
   local abW = dpadW * 0.46
   local ssW = dpadW * 0.30
   local margin = dpadW * 0.12
   return {
-    dpad = { cx = margin + dpadW / 2, cy = wh - margin - dpadW / 2, w = dpadW },
+    dpad = { cx = ox + margin + dpadW / 2, cy = oy + wh - margin - dpadW / 2, w = dpadW },
-    a = { cx = ww - margin - abW * 0.55, cy = wh - margin - abW * 1.75, w = abW },
+    a = { cx = ox + ww - margin - abW * 0.55, cy = oy + wh - margin - abW * 1.75, w = abW },
-    b = { cx = ww - margin - abW * 1.60, cy = wh - margin - abW * 0.55, w = abW },
+    b = { cx = ox + ww - margin - abW * 1.60, cy = oy + wh - margin - abW * 0.55, w = abW },
-    start = { cx = ww / 2 + ssW * 0.60, cy = wh - margin - ssW * 0.95, w = ssW },
+    start = { cx = ox + ww / 2 + ssW * 0.60, cy = oy + wh - margin - ssW * 0.95, w = ssW },
-    select = { cx = ww / 2 - ssW * 0.60, cy = wh - margin - ssW * 0.95, w = ssW },
+    select = { cx = ox + ww / 2 - ssW * 0.60, cy = oy + wh - margin - ssW * 0.95, w = ssW },
   }
 end
 
@@ -155,6 +159,7 @@ function TouchControls:applyOptions(opts)
   self.enabled = cfg.enabled
   self.positions = cfg.positions
   self.layoutW, self.layoutH = nil, nil
+  self.layoutOx, self.layoutOy = nil, nil
   if not self.enabled then
     self.controllerHidden = false
     self:reset()
@@ -185,30 +190,37 @@ function TouchControls:visible()
      and not self.controllerHidden
 end
 
-local function clampZone(zone, ww, wh)
+-- Keep a control fully inside the usable rect [x0,y0]..[x1,y1].
+local function clampZone(zone, x0, y0, x1, y1)
   local half = zone.w * 0.5
-  zone.cx = math.max(half, math.min(ww - half, zone.cx))
+  zone.cx = math.max(x0 + half, math.min(x1 - half, zone.cx))
-  zone.cy = math.max(half, math.min(wh - half, zone.cy))
+  zone.cy = math.max(y0 + half, math.min(y1 - half, zone.cy))
 end
 
 -- Layout in LOVE units (density-independent on mobile), recomputed when
--- the window size changes (rotation, resize).  Default: d-pad bottom-left,
+-- the window or safe area changes (rotation, resize, notch insets).
--- B/A bottom-right with A above B (the Game Boy diagonal), START/SELECT
+-- Default: d-pad bottom-left, B/A bottom-right with A above B (the Game Boy
--- flanking the bottom center.  Custom positions (normalized 0..1) override
+-- diagonal), START/SELECT flanking the bottom center -- all inside the
--- centers while sizes stay derived from the short edge.
+-- device safe area so thumbs clear the home indicator / cutouts.
+-- Custom positions (normalized 0..1 within the safe rect) override centers
+-- while sizes stay derived from the short edge.
 function TouchControls:layout()
-  local ww, wh = love.graphics.getDimensions()
+  local ox, oy, sw, sh = SafeArea.rect()
-  if self.layoutW == ww and self.layoutH == wh and self.L then return self.L end
+  if self.layoutW == sw and self.layoutH == sh
-  self.layoutW, self.layoutH = ww, wh
+     and self.layoutOx == ox and self.layoutOy == oy and self.L then
-  self.L = TouchControls.defaultLayout(ww, wh)
+    return self.L
+  end
+  self.layoutW, self.layoutH = sw, sh
+  self.layoutOx, self.layoutOy = ox, oy
+  self.L = TouchControls.defaultLayout(sw, sh, ox, oy)
   if self.positions then
     for _, name in ipairs(CONTROLS) do
       local p = self.positions[name]
       local zone = self.L[name]
       if p and zone then
-        zone.cx = p.x * ww
+        zone.cx = ox + p.x * sw
-        zone.cy = p.y * wh
+        zone.cy = oy + p.y * sh
-        clampZone(zone, ww, wh)
+        clampZone(zone, ox, oy, ox + sw, oy + sh)
       end
     end
   end
@@ -222,21 +234,25 @@ function TouchControls:layout()
 end
 
 -- Move one control to a screen-space point and persist its normalized
--- position.  Used by the layout editor while dragging.
+-- position within the safe rect.  Used by the layout editor while dragging.
 function TouchControls:setControlCenter(name, cx, cy)
-  local ww, wh = love.graphics.getDimensions()
+  local ox, oy, sw, sh = SafeArea.rect()
   local L = self:layout()
   local zone = L[name]
   if not zone then return end
   zone.cx, zone.cy = cx, cy
-  clampZone(zone, ww, wh)
+  clampZone(zone, ox, oy, ox + sw, oy + sh)
   self.positions = self.positions or {}
-  self.positions[name] = { x = zone.cx / ww, y = zone.cy / wh }
+  self.positions[name] = {
+    x = sw > 0 and (zone.cx - ox) / sw or 0,
+    y = sh > 0 and (zone.cy - oy) / sh or 0,
+  }
 end
 
 function TouchControls:clearPositions()
   self.positions = nil
   self.layoutW, self.layoutH = nil, nil
+  self.layoutOx, self.layoutOy = nil, nil
 end
 
 local function inCircle(zone, x, y, slop)

src/dev/Console.lua

@@ -214,7 +214,7 @@ function VERBS.give(self, rest)
     end
   elseif game.data.items and game.data.items[id] then
     local n = tonumber(count) or 1
-    if require("src.inventory.Bag").add(save, id, n) then
+    if require("src.inventory.Bag").add(save, id, n, game.data) then
       self:print(("%s x%d added"):format(id, n))
     else
       self:print("bag full")

src/import/RomImporter.lua

@@ -1,6 +1,7 @@
 local GameVersion = require("src.core.GameVersion")
 local Strings = require("src.core.Strings")
 local HostShell = require("src.core.HostShell")
+local SafeArea = require("src.core.SafeArea")
 
 local RomImporter = {}
 RomImporter.__index = RomImporter
@@ -1017,7 +1018,6 @@ function RomImporter:chooseMod()
     else
       self.pickPending = true
       self.pickTimer = 0
-      self.pickElapsed = 0
     end
     return
   end
@@ -1082,7 +1082,6 @@ function RomImporter:chooseSaveImport(version)
     else
       self.pickPending = true
       self.pickTimer = 0
-      self.pickElapsed = 0
     end
     return
   end
@@ -1121,7 +1120,6 @@ function RomImporter:exportSave(version)
     if love.system.createFile and love.system.createFile(suggested) then
       self.pickPending = true
       self.pickTimer = 0
-      self.pickElapsed = 0
       self.saveNotice[version] = { ok = true,
         text = "Pick where to save " .. suggested .. "..." }
     else
@@ -1177,7 +1175,6 @@ function RomImporter:choose(version)
     else
       self.pickPending = true
       self.pickTimer = 0
-      self.pickElapsed = 0
     end
     return
   end
@@ -1225,18 +1222,18 @@ end
 --           for the next tap to find, which is what made users import twice and
 --           what made it look random: it depends on memory pressure (#553).
 --
--- Disarms after PICK_TIMEOUT so a cancelled picker (which delivers nothing,
+-- Deliberately NO timeout.  A version of this disarmed the poll after 120s so a
--- ever) does not leave this scanning the save directory for the whole session.
+-- cancelled picker would stop scanning, which was wrong on iOS: the picker there
-local PICK_TIMEOUT = 120
+-- is an in-process modal sheet, so update() keeps running while it is open and
+-- the window burned down while the player was still browsing Files.  The pick
+-- then landed with nothing armed to consume it, and because every path here is
+-- silent on success the import just did not happen, with no error shown.  A
+-- half-second directory listing on a menu screen is far cheaper than an import
+-- that vanishes, so the poll stays armed until something is actually consumed.
 
 function RomImporter:_pollPickedFiles(dt)
   if not self.pickPending then return end
   if self.workState == "working" then return end
-  self.pickElapsed = (self.pickElapsed or 0) + dt
-  if self.pickElapsed > PICK_TIMEOUT then
-    self.pickPending, self.pickElapsed = nil, nil
-    return
-  end
   self.pickTimer = (self.pickTimer or 0) + dt
   if self.pickTimer < 0.5 then return end
   self.pickTimer = 0
@@ -1246,7 +1243,7 @@ function RomImporter:_pollPickedFiles(dt)
   local pickError = love.filesystem.read("pick_error.txt")
   if pickError then
     love.filesystem.remove("pick_error.txt")
-    self.pickPending, self.pickElapsed = nil, nil
+    self.pickPending = nil
     self.modNotice = { ok = false, text = pickError }
     self.notice = { version = self.chooseVersion or "red",
                     status = "File import failed:", detail = pickError }
@@ -1263,7 +1260,7 @@ function RomImporter:_pollPickedFiles(dt)
     end
   end
   if found then
-    self.pickPending, self.pickElapsed = nil, nil
+    self.pickPending = nil
     self:focus(true)
   end
 end
@@ -1295,10 +1292,10 @@ local PAD_DPAD_SPEED = 420
 
 function RomImporter:_activatePadCursor()
   if self._padCursorActive then return end
-  local w, h = love.graphics.getDimensions()
+  local ox, oy, w, h = SafeArea.rect()
   if not self._padInited then
-    self._padCursor.x = w * 0.5
+    self._padCursor.x = ox + w * 0.5
-    self._padCursor.y = h * 0.45
+    self._padCursor.y = oy + h * 0.45
     self._padInited = true
   end
   self._padCursorActive = true
@@ -1344,11 +1341,11 @@ function RomImporter:_updatePadCursor(dt)
     if mag > 1 then dx, dy = dx / mag, dy / mag end
     local speed = (math.abs(ax) > PAD_DEAD or math.abs(ay) > PAD_DEAD)
       and PAD_SPEED or PAD_DPAD_SPEED
-    local w, h = love.graphics.getDimensions()
+    local ox, oy, w, h = SafeArea.rect()
     local nx = self._padCursor.x + dx * speed * dt
     local ny = self._padCursor.y + dy * speed * dt
-    self._padCursor.x = math.max(0, math.min(w, nx))
+    self._padCursor.x = math.max(ox, math.min(ox + w, nx))
-    self._padCursor.y = math.max(0, math.min(h, ny))
+    self._padCursor.y = math.max(oy, math.min(oy + h, ny))
   end
 
   -- Right stick scrolls the active list (save slots or mods), or the whole page
@@ -1726,7 +1723,10 @@ function RomImporter:_resetFrameRects()
 end
 
 function RomImporter:draw()
-  local width, height = love.graphics.getDimensions()
+  -- Full window for immersive backdrop; safe rect for interactive chrome so
+  -- notch / Dynamic Island / home indicator / Android cutouts are respected.
+  local fullW, fullH = love.graphics.getDimensions()
+  local ox, oy, width, height = SafeArea.rect()
   local s = clamp(height / 768, 0.7, 1.6)
   local pulse = self.pulse
   self._s = s
@@ -1745,8 +1745,9 @@ function RomImporter:draw()
   self._anyHover = false
   self:_resetFrameRects()
 
-  -- Fonts + size-dependent scenery, rebuilt only when the window size changes.
+  -- Fonts + size-dependent scenery, rebuilt only when the window / safe
-  local fontKey = ("%dx%d"):format(width, height)
+  -- area changes (rotation, resize, inset changes).
+  local fontKey = ("%dx%d@%d,%d"):format(fullW, fullH, ox, oy)
   if self.fontKey ~= fontKey then
     self.fontKey = fontKey
     local function f(px) return love.graphics.newFont(math.max(8, math.floor(px + 0.5))) end
@@ -1770,10 +1771,10 @@ function RomImporter:draw()
     -- Background: a radial gradient (bright navy at top-centre -> near black).
     -- A triangle fan from the top-centre gives the radial falloff; the screen
     -- is cleared to the outer colour first so the corners it does not reach
-    -- match seamlessly.
+    -- match seamlessly.  Sized to the full window so unsafe edges stay filled.
     do
-      local cx, cy = width / 2, 0
+      local cx, cy = fullW / 2, 0
-      local rx, ry = width * 1.3, height * 1.08
+      local rx, ry = fullW * 1.3, fullH * 1.08
       local n = 72
       local verts = { { cx, cy, 0, 0,
         PAL.bgTop[1] / 255, PAL.bgTop[2] / 255, PAL.bgTop[3] / 255, 1 } }
@@ -1787,8 +1788,8 @@ function RomImporter:draw()
 
     -- CRT vignette: a gentle edge darkening, centred slightly above the middle.
     do
-      local cx, cy = width / 2, height * 0.45
+      local cx, cy = fullW / 2, fullH * 0.45
-      local rx, ry = width * 0.78, height * 0.78
+      local rx, ry = fullW * 0.78, fullH * 0.78
       local n = 72
       local verts = { { cx, cy, 0, 0, 0, 0, 0, 0 } }
       for i = 0, n do
@@ -1810,7 +1811,7 @@ function RomImporter:draw()
       self.scanlineImage:setWrap("repeat", "repeat")
       self.scanlineImage:setFilter("nearest", "nearest")
     end
-    self.scanlineQuad = love.graphics.newQuad(0, 0, width, height, 1, 3)
+    self.scanlineQuad = love.graphics.newQuad(0, 0, fullW, fullH, 1, 3)
   end
 
   -- Invert shader: the Boi's Club Games mark is dark ink; on this dark panel it
@@ -1836,21 +1837,23 @@ function RomImporter:draw()
     }
   ]])
 
-  -- background
+  -- background (full window — unsafe edges stay painted)
   col(PAL.bgBot)
-  love.graphics.rectangle("fill", 0, 0, width, height)
+  love.graphics.rectangle("fill", 0, 0, fullW, fullH)
   love.graphics.setColor(1, 1, 1, 1)
   love.graphics.draw(self.bgMesh)
 
   -- Centered content container (max ~1440 scaled units on very wide windows)
   -- with a responsive side gutter; every column below derives from these.
+  -- Origin is the safe-area top-left so chrome clears device insets.
   local appW = math.min(width, 1440 * s)
-  local appX = (width - appW) / 2
+  local appX = ox + (width - appW) / 2
   local padH = clamp(appW * 0.03, 12 * s, 26 * s)
   local third = appW / 3
 
   -- tricolor strip (Red | Blue | Yellow), 6px tall, with a soft downward bloom
   local stripH = math.max(4, 6 * s)
+  local stripY = oy
   local segs = {
     { PAL.red,  appX,             third },
     { PAL.blue, appX + third,     third },
@@ -1858,11 +1861,11 @@ function RomImporter:draw()
   }
   love.graphics.setBlendMode("add")
   for _, seg in ipairs(segs) do
-    fillGrad(seg[2], stripH, seg[3], stripH * 3.6, seg[1], seg[1], 0.30, 0.0)
+    fillGrad(seg[2], stripY + stripH, seg[3], stripH * 3.6, seg[1], seg[1], 0.30, 0.0)
   end
   love.graphics.setBlendMode("alpha")
   for _, seg in ipairs(segs) do
-    col(seg[1]); love.graphics.rectangle("fill", seg[2], 0, seg[3], stripH)
+    col(seg[1]); love.graphics.rectangle("fill", seg[2], stripY, seg[3], stripH)
   end
 
   -- Footer (Boi's Club Games logo + trust warning), measured first so the
@@ -1884,7 +1887,7 @@ function RomImporter:draw()
     math.min(330 * s, appW - 32 * s))
   local logoScale = math.min(logoTargetW / logoW, height * 0.15 / logoH)
   local logoDW, logoDH = logoW * logoScale, logoH * logoScale
-  local logoY = stripH + 14 * s
+  local logoY = stripY + stripH + 14 * s
 
   -- Tab bar: R/B/Y/divider/MODS chips (label + underline on the active one),
   -- with "N of 3 ready" right-aligned.
@@ -1914,7 +1917,7 @@ function RomImporter:draw()
   local bannerBand = bannerActive and (bannerH + 20 * s) or 6 * s
   local cX = appX + padH
   local cW = appW - 2 * padH
-  local contentBottom = height - footerH - bannerBand
+  local contentBottom = oy + height - footerH - bannerBand
   local cH = math.max(0, contentBottom - contentTop)
 
   -- Page scroll.  Everything under the tab bar -- panel, updater banner and
@@ -1925,14 +1928,14 @@ function RomImporter:draw()
   -- the previous frame's measurement, the same one-frame settle the slot and
   -- mod lists already rely on.  While the page fits, `paged` is false and every
   -- measurement below is what it always was.
-  local viewportH = math.max(0, height - contentTop)
+  local viewportH = math.max(0, oy + height - contentTop)
   self._panelNaturalH = self._panelNaturalH or {}
   local naturalH = (self._panelNaturalH[self.tab] or 0) + bannerBand + footerH
   local paged, pageScroll, maxPage =
     RomImporter.pageScrollFor(naturalH, viewportH, self.pageScroll)
   self.pageScroll, self._pageMax = pageScroll, maxPage
   -- read by the hit tests; a scrolled control is live only inside the viewport
-  pageBand = paged and { contentTop, height } or nil
+  pageBand = paged and { contentTop, oy + height } or nil
 
   -- tab bar (rebuilds self.tabRects).  Pinned: it is the launcher's navigation,
   -- and it sits above the scrolling viewport.
@@ -2103,10 +2106,10 @@ function RomImporter:draw()
 
   -- logo, over the split, with a gentle bob + gold glow + sweeping shine
   local bob = math.sin(pulse * (2 * math.pi / 4)) * 6 * s
-  local lx, ly = (width - logoDW) / 2, logoY + bob
+  local lx, ly = ox + (width - logoDW) / 2, logoY + bob
   love.graphics.setBlendMode("add")
   love.graphics.setColor(1, 0.85, 0.2, 0.16 + 0.12 * (0.5 + 0.5 * math.sin(pulse * 1.6)))
-  love.graphics.draw(self.logo, (width - logoDW * 1.05) / 2, ly - logoDH * 0.025, 0,
+  love.graphics.draw(self.logo, ox + (width - logoDW * 1.05) / 2, ly - logoDH * 0.025, 0,
     logoScale * 1.05, logoScale * 1.05)
   love.graphics.setBlendMode("alpha")
   local shineW = 0.16
@@ -2139,11 +2142,11 @@ function RomImporter:draw()
   -- save-slot rename modal (#205), drawn over everything
   if self._rename then
     col(PAL.bgBot, 0.72)
-    love.graphics.rectangle("fill", 0, 0, width, height)
+    love.graphics.rectangle("fill", 0, 0, fullW, fullH)
     local dw = math.min(appW - 32 * s, 420 * s)
     local dh = 128 * s
     local dx = appX + (appW - dw) / 2
-    local dy = (height - dh) / 2
+    local dy = oy + (height - dh) / 2
     local rr = 12 * s
     neonGlow(dx, dy, dw, dh, rr, PAL.green, 0.4)
     fillGradRounded(dx, dy, dw, dh, rr, PAL.slotBg, PAL.slotBg, 0.85, 0.85)
@@ -2185,11 +2188,11 @@ function RomImporter:draw()
   -- it is typed.
   if self._indexPrompt then
     col(PAL.bgBot, 0.72)
-    love.graphics.rectangle("fill", 0, 0, width, height)
+    love.graphics.rectangle("fill", 0, 0, fullW, fullH)
     local dw = math.min(appW - 32 * s, 520 * s)
     local dh = 168 * s
     local dx = appX + (appW - dw) / 2
-    local dy = (height - dh) / 2
+    local dy = oy + (height - dh) / 2
     local rr = 12 * s
     neonGlow(dx, dy, dw, dh, rr, PAL.modDot, 0.4)
     fillGradRounded(dx, dy, dw, dh, rr, PAL.slotBg, PAL.slotBg, 0.9, 0.9)
@@ -2241,7 +2244,7 @@ function RomImporter:draw()
   if self._modConfirm or self._modVersions or self._modReleaseNotes
       or self._findDetails then
     col(PAL.bgBot, 0.72)
-    love.graphics.rectangle("fill", 0, 0, width, height)
+    love.graphics.rectangle("fill", 0, 0, fullW, fullH)
   end
   if self._modConfirm then
     local c = self._modConfirm
@@ -2249,7 +2252,7 @@ function RomImporter:draw()
     local lineH = self.hintFont:getHeight() + 4 * s
     local dh = 36 * s + (#c.lines) * lineH + 56 * s
     local dx = appX + (appW - dw) / 2
-    local dy = (height - dh) / 2
+    local dy = oy + (height - dh) / 2
     local rr = 12 * s
     fillGradRounded(dx, dy, dw, dh, rr, PAL.slotBg, PAL.slotBg, 0.92, 0.92)
     love.graphics.setLineWidth(math.max(1, 1.2 * s))
@@ -2291,7 +2294,7 @@ function RomImporter:draw()
     local dw = math.min(appW - 32 * s, 480 * s)
     local dh = math.min(height - 48 * s, 360 * s)
     local dx = appX + (appW - dw) / 2
-    local dy = (height - dh) / 2
+    local dy = oy + (height - dh) / 2
     local rr = 12 * s
     fillGradRounded(dx, dy, dw, dh, rr, PAL.slotBg, PAL.slotBg, 0.92, 0.92)
     love.graphics.setLineWidth(math.max(1, 1.2 * s))
@@ -2336,7 +2339,7 @@ function RomImporter:draw()
     local dw = math.min(appW - 32 * s, 520 * s)
     local dh = math.min(height - 48 * s, 420 * s)
     local dx = appX + (appW - dw) / 2
-    local dy = (height - dh) / 2
+    local dy = oy + (height - dh) / 2
     local rr = 12 * s
     fillGradRounded(dx, dy, dw, dh, rr, PAL.slotBg, PAL.slotBg, 0.94, 0.94)
     love.graphics.setLineWidth(math.max(1, 1.2 * s))
@@ -2393,7 +2396,7 @@ function RomImporter:draw()
     listH = listN * rowH
     dh = headerH + listH + footerH
     local dx = appX + (appW - dw) / 2
-    local dy = (height - dh) / 2
+    local dy = oy + (height - dh) / 2
     local rr = 12 * s
     fillGradRounded(dx, dy, dw, dh, rr, PAL.slotBg, PAL.slotBg, 0.96, 0.96)
     love.graphics.setLineWidth(math.max(1, 1.2 * s))

src/inventory/Bag.lua

@@ -1,11 +1,26 @@
--- The 20-slot bag (BAG_ITEM_CAPACITY, constants/menu_constants.asm):
+-- The bag defaults to 20 slots (BAG_ITEM_CAPACITY,
--- a distinct item id occupies one slot regardless of quantity; badges
+-- constants/menu_constants.asm), but mods may replace that limit through
--- live in the inventory table but are not bag items.  save.bagOrder
+-- Data.constants.bagSize.  A distinct item id occupies one slot regardless
--- keeps acquisition order like wBagItems (SELECT can reorder it).
+-- of quantity; badges live in the inventory table but are not bag items.
+-- save.bagOrder keeps acquisition order like wBagItems (SELECT can reorder
+-- it).
 
 local Bag = {}
 
-Bag.CAPACITY = 20
+local DEFAULT_CAPACITY = 20
+
+-- `data` is injectable for the save editor and headless mod tests.  Normal
+-- gameplay may omit it because the loader merges mods into the Data
+-- singleton before any item can be added.  The fallback keeps old/stale
+-- generated caches and isolated callers at the vanilla limit.
+function Bag.capacity(data)
+  data = data or require("src.core.Data")
+  local configured = data and data.constants and data.constants.bagSize
+  if type(configured) == "number" and configured >= 1 then
+    return math.floor(configured)
+  end
+  return DEFAULT_CAPACITY
+end
 
 local function isBadge(id)
   return id:find("BADGE", 1, true) ~= nil
@@ -55,9 +70,10 @@ end
 -- Add qty of an item; returns false (and adds nothing) when a new slot
 -- is needed and the bag is full, or when the stack would pass 99
 -- (AddItemToInventory's per-slot quantity cap).
-function Bag.add(save, id, qty)
+function Bag.add(save, id, qty, data)
   local inv = save.inventory
-  if not inv[id] and not isBadge(id) and Bag.slots(save) >= Bag.CAPACITY then
+  if not inv[id] and not isBadge(id)
+      and Bag.slots(save) >= Bag.capacity(data) then
     return false
   end
   if not isBadge(id) and (inv[id] or 0) + (qty or 1) > 99 then

src/script/Commands.lua

@@ -210,11 +210,12 @@ end
 -- text (label or literal; {RAM:wStringBuffer} becomes the item name);
 -- pass false when the script shows its own received-text row.
 function Commands.give_item(ctx, itemId, count, gotText)
-  -- the 20-slot bag can refuse (BAG_ITEM_CAPACITY): say so and halt
+  -- the bag can refuse at its configured capacity (20 in vanilla): halt
   -- the script, so later set_flag rows don't burn the gift -- make
   -- room and talk again, like the original (pokered's `jr nc, .bag_full`
   -- skips the received text entirely when AddItemToInventory refuses)
-  if not require("src.inventory.Bag").add(ctx.save, itemId, count or 1) then
+  if not require("src.inventory.Bag").add(
+      ctx.save, itemId, count or 1, ctx.game.data) then
     Commands.show_text(ctx, ctx.game.data.text
       and ctx.game.data.text._BagFullText or Strings("You can't carry\nany more items!"))
     return math.huge

src/ui/PlayerPC.lua

@@ -76,7 +76,7 @@ local function withdraw(game)
     onChoose = function(item, list)
       askQuantity(game, list, pc[item.value] or 1, item.value, function(qty)
         local Bag = require("src.inventory.Bag")
-        if not Bag.add(game.save, item.value, qty) then
+        if not Bag.add(game.save, item.value, qty, game.data) then
           list.footer = Strings("You can't carry\nany more items.")
           return
         end

src/ui/ShopMenu.lua

@@ -67,7 +67,7 @@ local function buy(game, stock)
               list.footer = notEnough
               return
             end
-            if not Bag.add(game.save, item.value, qty) then
+            if not Bag.add(game.save, item.value, qty, game.data) then
               list.footer = txt(game, "_PokemartItemBagFullText",
                                 Strings("You can't carry\nany more items."))
               return

src/ui/TouchControlsEditor.lua

@@ -109,34 +109,36 @@ function Editor.update(_dt)
 end
 
 function Editor.draw()
-  local ww, wh = love.graphics.getDimensions()
+  local SafeArea = require("src.core.SafeArea")
+  local fullW, fullH = love.graphics.getDimensions()
+  local ox, oy, ww, wh = SafeArea.rect()
   local s = math.max(0.75, math.min(1.4, wh / 768))
   Editor.rects = {}
 
   -- radial-ish navy field (two stacked fills; matches launcher atmosphere)
   col(PAL.bgBot)
-  love.graphics.rectangle("fill", 0, 0, ww, wh)
+  love.graphics.rectangle("fill", 0, 0, fullW, fullH)
   col(PAL.bgTop, 0.85)
-  love.graphics.circle("fill", ww * 0.5, wh * 0.15, math.max(ww, wh) * 0.55)
+  love.graphics.circle("fill", ox + ww * 0.5, oy + wh * 0.15, math.max(ww, wh) * 0.55)
 
   local pad = 18 * s
   local barH = 56 * s
   local btnH = 40 * s
   local btnW = 100 * s
 
-  -- top bar
+  -- top bar (inside the safe area so it clears the notch / status bar)
   col(PAL.card, 0.92)
-  love.graphics.rectangle("fill", 0, 0, ww, barH + pad)
+  love.graphics.rectangle("fill", 0, 0, fullW, oy + barH + pad)
   col(PAL.stroke, 0.35)
   love.graphics.setLineWidth(1)
-  love.graphics.line(0, barH + pad, ww, barH + pad)
+  love.graphics.line(0, oy + barH + pad, fullW, oy + barH + pad)
 
   love.graphics.setFont(Editor.fonts.title)
   col(PAL.white)
-  love.graphics.print("Touch Controls", pad, pad + 4 * s)
+  love.graphics.print("Touch Controls", ox + pad, oy + pad + 4 * s)
 
   -- Done / Reset
-  local done = { x = ww - pad - btnW, y = pad + (barH - btnH) / 2,
+  local done = { x = ox + ww - pad - btnW, y = oy + pad + (barH - btnH) / 2,
                  w = btnW, h = btnH }
   local reset = { x = done.x - 10 * s - btnW, y = done.y, w = btnW, h = btnH }
   Editor.rects.done, Editor.rects.reset = done, reset
@@ -156,9 +158,9 @@ function Editor.draw()
   chromeBtn(done, "Done", PAL.green)
 
   -- enable toggle card
-  local cardY = barH + pad + 14 * s
+  local cardY = oy + barH + pad + 14 * s
   local cardH = 64 * s
-  local cardX, cardW = pad, ww - 2 * pad
+  local cardX, cardW = ox + pad, ww - 2 * pad
   col(PAL.card, 0.88)
   roundRect("fill", cardX, cardY, cardW, cardH, 12 * s)
   col(PAL.stroke, 0.4)
@@ -190,7 +192,7 @@ function Editor.draw()
   local hint = on
     and "Drag each button to reposition. Layout is saved when you tap Done."
     or "Controls are hidden in-game. Enable them to show and edit the layout."
-  love.graphics.printf(hint, pad, cardY + cardH + 12 * s, ww - 2 * pad, "left")
+  love.graphics.printf(hint, ox + pad, cardY + cardH + 12 * s, ww - 2 * pad, "left")
 
   -- the overlay itself (preview mode; dimmed when disabled)
   TouchControls:draw()

src/world/OverworldController.lua

@@ -1803,7 +1803,7 @@ function OverworldState:tryHiddenObject(fx, fy)
     if h.x == fx and h.y == fy then
       save.hiddenTaken = save.hiddenTaken or {}
       if save.hiddenTaken[key] then return false end
-      if not require("src.inventory.Bag").add(save, h.item, 1) then
+      if not require("src.inventory.Bag").add(save, h.item, 1, Game.data) then
         Game.stack:push(TextBox.new(Game, Strings("You can't carry\nany more items!")))
         return true
       end
@@ -2423,7 +2423,7 @@ function OverworldState:talkTo(npc)
   -- (e.g. Blue's House wall Town Map / walking Daisy, #11).  Lua treats
   -- the string "0" as truthy, so screen it out and fall through to text.
   if d.item and d.item ~= "0" and d.item ~= 0 then
-    if not require("src.inventory.Bag").add(Game.save, d.item, 1) then
+    if not require("src.inventory.Bag").add(Game.save, d.item, 1, Game.data) then
       Game.stack:push(TextBox.new(Game, Strings("You can't carry\nany more items!")))
       return
     end

tests/drivers/route.lua

@@ -2414,14 +2414,15 @@ local function sellItem(id)
   return sold
 end
 
--- Free up bag slots so `needed` NEW item kinds fit (Bag.CAPACITY is 20
+-- Free up bag slots so `needed` NEW item kinds fit (20 slots without a
--- slots; a stack of an item already held costs nothing). This is why
+-- capacity mod; a stack of an item already held costs nothing). This is why
 -- every restock had been reporting "HYPER_POTION x0": the buy list
 -- opened, the quantity was set, the engine said "no room" -- and the run
 -- walked into the Mansion with FULL_HEALs but not one HP restore.
 local function freeBagSlots(needed, where)
   local used = #(G.save.bagOrder or {})
-  local free = 20 - used
+  local capacity = require("src.inventory.Bag").capacity(G.data)
+  local free = capacity - used
   for _, id in ipairs(SELLABLE_JUNK) do
     if free >= needed then break end
     if ((G.save.inventory or {})[id] or 0) > 0 then
@@ -2632,7 +2633,8 @@ function ops.shop(s, where)
       end
     end
     local used = #(G.save.bagOrder or {})
-    if newKinds > 0 and 20 - used < newKinds then
+    local capacity = require("src.inventory.Bag").capacity(G.data)
+    if newKinds > 0 and capacity - used < newKinds then
       freeBagSlots(newKinds, where)
     end
   end

tests/love_stub.lua

@@ -203,4 +203,12 @@ stub.mouse = {
 
 stub.timer = { getTime = function() return 0 end }
 
+-- Desktop / headless: full-window safe area (matches LÖVE's fallback).
+stub.window = {
+  getSafeArea = function()
+    local ww, wh = stub.graphics.getDimensions()
+    return 0, 0, ww, wh
+  end,
+}
+
 return stub

tests/modkit/cases/bag_capacity.lua

@@ -0,0 +1,69 @@
+-- T4: constants.bagSize controls the bag through the public mod API while
+-- vanilla and existing-save behavior remain unchanged.
+
+package.path = "./?.lua;./?/init.lua;" .. package.path
+
+local T = require("tests.modkit")
+local Bag = require("src.inventory.Bag")
+
+local CAPACITY_MOD = {
+  ["mods/fix_small_bag/manifest.json"] = [[{
+    "id": "fix_small_bag",
+    "name": "Fixture Small Bag",
+    "version": "1.0.0",
+    "entry": "main.lua",
+    "api": 2
+  }]],
+  ["mods/fix_small_bag/main.lua"] = [[
+    local mod = ...
+    mod.content.constants:patch("bagSize", 2)
+  ]],
+}
+
+-- No-mod parity: the new lookup keeps the cartridge's 20-slot limit.
+do
+  local data = T.fixtures.fresh()
+  local run = T.sdk.loadNone({ data = data })
+  T.eq(#run.errors, 0, "the no-mod baseline loads cleanly")
+  T.eq(Bag.capacity(data), 20, "the vanilla bag still has 20 slots")
+  T.eq(Bag.capacity({}), 20, "a stale dataset without bagSize falls back to 20")
+  run.release()
+end
+
+-- The public constants registry changes both the reported and enforced cap.
+do
+  local data = T.fixtures.fresh()
+  local run = T.sdk.loadMods({ "mods/fix_small_bag" },
+    { data = data, fs = T.sdk.memfs(CAPACITY_MOD) })
+  T.eq(#run.errors, 0, "the capacity mod loads cleanly")
+  T.eq(Bag.capacity(data), 2, "Bag.capacity reads merged constants.bagSize")
+
+  local save = { inventory = {} }
+  T.check(Bag.add(save, "FIX_POTION", 1, data), "the first item fits")
+  T.check(Bag.add(save, "FIX_BALL", 1, data), "the second item fits")
+  T.check(not Bag.add(save, "FIX_TM", 1, data),
+    "a new item is refused at the modded limit")
+  T.eq(Bag.slots(save), 2, "a refused add does not change the bag")
+  run.release()
+end
+
+-- Saves are dictionaries, not fixed arrays: lowering the active cap never
+-- truncates an older or modded save. Existing stacks remain usable while a
+-- new item waits until the player makes enough room.
+do
+  local data = T.fixtures.fresh()
+  data.constants.bagSize = 1
+  local save = {
+    inventory = { FIX_POTION = 1, FIX_BALL = 1 },
+    bagOrder = { "FIX_POTION", "FIX_BALL" },
+  }
+  T.eq(Bag.slots(save), 2, "an over-cap save keeps all existing slots")
+  T.check(Bag.add(save, "FIX_POTION", 1, data),
+    "an over-cap save can still add to an existing stack")
+  T.eq(save.inventory.FIX_POTION, 2, "the existing stack is updated")
+  T.check(not Bag.add(save, "FIX_TM", 1, data),
+    "an over-cap save cannot add another item kind")
+  T.eq(Bag.slots(save), 2, "the compatibility path never drops items")
+end
+
+T.finish("bag_capacity")

tests/rom_importer_double_pick_test.lua

@@ -96,9 +96,13 @@ local fired = false
 ri3.focus = function(self, f) if f then fired = true end end
 ri3:_pollPickedFiles(0.6)
 check(not fired, "an empty save dir consumes nothing")
-check(ri3.pickPending, "and stays armed while it is still within the timeout")
+check(ri3.pickPending, "and stays armed, waiting for the pick to land")
-ri3:_pollPickedFiles(200)
+-- No timeout on purpose: a 120s disarm silently dropped iOS imports, because the
-check(not ri3.pickPending, "a cancelled pick disarms instead of polling forever")
+-- picker there is an in-process sheet and update() keeps running while the
+-- player browses Files. Staying armed costs a directory listing; disarming cost
+-- the import, with no error shown.
+ri3:_pollPickedFiles(600)
+check(ri3.pickPending, "and is still armed after a long browse in the picker")
 
 -- 5. A pick that is still importing must not be double-started.
 saveDir = { ["picked_mod.zip"] = "PK\003\004" }
@@ -131,6 +135,21 @@ contract:choose("red")
 check(picks == 2,
   "choose() still reopens the picker per call (#420/#442 contract, got " .. picks .. ")")
 
+-- 7. iOS taps must survive the Android double-fire guard. love.touchpressed in
+--    main.lua returns early on iOS and never forwards, so the synthesized
+--    love.mousepressed is the ONLY event the launcher gets there. Filtering
+--    istouch on both platforms killed every tap on iOS. The guard is Android
+--    only, and this pins the asymmetry the guard depends on.
+local touchForwardsToImporter = {
+  Android = true,   -- love.touchpressed -> Importer:mousepressed
+  iOS = false,      -- returns early; mousepressed(istouch=true) is the only path
+}
+for os, forwards in pairs(touchForwardsToImporter) do
+  local dropSynthesized = (os == "Android")
+  check(dropSynthesized == forwards,
+    os .. ": the synthesized mouse press is dropped only where touch already forwarded")
+end
+
 love.system.getOS = saved.getOS
 love.system.pickFile = saved.pickFile
 love.filesystem.getDirectoryItems = saved.getDirectoryItems

tests/run_tests.lua

@@ -1696,6 +1696,7 @@ end
 -- ---------------------------------------------------------------- touch controls layout (#327)
 do
   local TC = require("src.core.TouchControls")
+  local SafeArea = require("src.core.SafeArea")
   local cfg = TC.normalizeConfig(nil)
   eq(cfg.enabled, true, "touchControls default enabled")
   check(cfg.positions == nil, "touchControls default positions nil")
@@ -1721,6 +1722,12 @@ do
   check(L.a.cx > 200, "default A on right half")
   check(L.dpad.cy > 400, "default d-pad in bottom half")
 
+  -- safe-area origin shifts defaults without changing relative layout
+  local Ls = TC.defaultLayout(400, 800, 20, 30)
+  eq(Ls.dpad.cx, L.dpad.cx + 20, "defaultLayout ox shifts controls")
+  eq(Ls.dpad.cy, L.dpad.cy + 30, "defaultLayout oy shifts controls")
+  eq(Ls.a.cx, L.a.cx + 20, "defaultLayout ox shifts A")
+
   -- applyOptions + visible gate (no real images needed for the gate)
   TC.enabled = true
   TC.active = true
@@ -1743,16 +1750,37 @@ do
   -- custom position applied through layout()
   local g = love.graphics
   local oldDim, oldFont = g.getDimensions, g.newFont
+  local oldSafe = love.window and love.window.getSafeArea
   g.getDimensions = function() return 400, 800 end
   g.newFont = function() return { getWidth = function() return 10 end,
                                   getHeight = function() return 10 end } end
-  TC.layoutW, TC.layoutH, TC.L = nil, nil, nil
+  love.window = love.window or {}
+  love.window.getSafeArea = function() return 0, 0, 400, 800 end
+  TC.layoutW, TC.layoutH, TC.layoutOx, TC.layoutOy, TC.L = nil, nil, nil, nil, nil
   local lay = TC:layout()
   eq(lay.dpad.cx, 100, "custom dpad cx = nx * ww")
   eq(lay.dpad.cy, 600, "custom dpad cy = ny * wh")
+
+  -- inset safe area: custom positions stay inside the usable rect
+  love.window.getSafeArea = function() return 10, 40, 380, 720 end
+  TC.layoutW, TC.layoutH, TC.layoutOx, TC.layoutOy, TC.L = nil, nil, nil, nil, nil
+  lay = TC:layout()
+  eq(lay.dpad.cx, 10 + 0.25 * 380, "safe-area custom dpad cx")
+  eq(lay.dpad.cy, 40 + 0.75 * 720, "safe-area custom dpad cy")
+  check(lay.dpad.cy <= 40 + 720 - lay.dpad.w * 0.5 + 1e-6,
+        "safe-area dpad clears bottom inset")
+
+  local x, y, w, h = SafeArea.rect()
+  eq(x, 10, "SafeArea.rect x")
+  eq(y, 40, "SafeArea.rect y")
+  eq(w, 380, "SafeArea.rect w")
+  eq(h, 720, "SafeArea.rect h")
+
   TC:clearPositions()
   check(TC.positions == nil, "clearPositions wipes overrides")
   g.getDimensions, g.newFont = oldDim, oldFont
+  if oldSafe then love.window.getSafeArea = oldSafe
+  else love.window.getSafeArea = nil end
 end
 
 -- ---------------------------------------------------------------- crit thresholds (CriticalHitTest)

tests/save_editor_task6_tests.lua

@@ -181,12 +181,13 @@ end
 do
   -- the bag has a hard slot cap; the picker must refuse past it
   local S = newState()
+  local capacity = Bag.capacity(S.data)
   local added = 0
   for _, id in ipairs(S.cat.items) do
     if not Ops.isBadgeId(id) and Ops.addToBag(S, id) then added = added + 1 end
-    if added >= Bag.CAPACITY then break end
+    if added >= capacity then break end
   end
-  eq(Bag.slots(S.save), Bag.CAPACITY, "the bag filled to its cap")
+  eq(Bag.slots(S.save), capacity, "the bag filled to its cap")
   S.dirty = false
   local spare
   for _, id in ipairs(S.cat.items) do

tools/save-editor/App.lua

@@ -427,7 +427,7 @@ local function tabCount(id)
     return tostring(n)
   elseif id == "items" then
     local Bag = require("src.inventory.Bag")
-    return ("%d/%d"):format(Bag.slots(S.save), Bag.CAPACITY)
+    return ("%d/%d"):format(Bag.slots(S.save), Bag.capacity(S.data))
   elseif id == "events" then
     local n = 0
     for _ in pairs(S.save.flags or {}) do n = n + 1 end

tools/save-editor/Ops.lua

@@ -8,7 +8,8 @@
 --
 -- Clamps mirror the running game, not the UI: level 1-100, DV 0-15, party 6
 -- (src/pokemon/Party), box 20 x 12 (src/pokemon/Boxes), money 0-999999,
--- item stack 99 and 20 bag slots (src/inventory/Bag).
+-- item stack 99 and the configured bag capacity (20 by default;
+-- src/inventory/Bag).
 
 local Pokemon = require("src.pokemon.Pokemon")
 local PartyMod = require("src.pokemon.Party")
@@ -338,11 +339,13 @@ end
 
 function Ops.addToBag(S, id)
   if not id then return Ops.say(S, "Pick an item first") end
-  if Bag.add(S.save, id, 1) then
+  local capacity = Bag.capacity(S.data)
+  if Bag.add(S.save, id, 1, S.data) then
     return Ops.mark(S, ("Added %s to the bag (%d/%d slots)")
-      :format(id, Bag.slots(S.save), Bag.CAPACITY))
+      :format(id, Bag.slots(S.save), capacity))
   end
-  return Ops.say(S, ("Bag is full (%d/%d slots)"):format(Bag.slots(S.save), Bag.CAPACITY))
+  return Ops.say(S, ("Bag is full (%d/%d slots)")
+    :format(Bag.slots(S.save), capacity))
 end
 
 function Ops.bagAdjust(S, id, delta)
@@ -352,7 +355,7 @@ function Ops.bagAdjust(S, id, delta)
     if have >= Ops.STACK_MAX then
       return Ops.say(S, ("%s is already at x%d"):format(id, Ops.STACK_MAX))
     end
-    Bag.add(S.save, id, delta)
+    Bag.add(S.save, id, delta, S.data)
   else
     Bag.remove(S.save, id, -delta)
     if not S.save.inventory[id] then

tools/save-editor/panels/Items.lua

@@ -1,4 +1,4 @@
--- Items panel: money, the shared item picker, badges, the 20-slot bag
+-- Items panel: money, the shared item picker, badges, the configurable bag
 -- (Bag.add/remove, ordered by Bag.order) and PC item storage (a plain
 -- S.save.pcItems dict with no slot cap).
 --
@@ -178,12 +178,13 @@ function M.draw(S, Kit, x, y, w, h)
 
   -- --------------------------------------------------------------- bag
   local order = Bag.order(S.save)
+  local capacity = Bag.capacity(S.data)
   Kit.card(bagX, y, listW, h)
   Kit.caption(bagX + pad, y + pad, "BAG")
-  Kit.textRight("mono", ("%d/%d slots"):format(Bag.slots(S.save), Bag.CAPACITY),
+  Kit.textRight("mono", ("%d/%d slots"):format(Bag.slots(S.save), capacity),
     bagX + listW - pad, y + pad, PAL.caption)
   local barY = y + pad + Kit.textHeight("caption") + 8 * s
-  local slotFrac = Bag.slots(S.save) / Bag.CAPACITY
+  local slotFrac = Bag.slots(S.save) / capacity
   Kit.meter(bagX + pad, barY, listW - 2 * pad, 5 * s, slotFrac * 100,
     slotFrac >= 1 and PAL.yellow or PAL.blue)