Read the Pyramid's floor names and Ever Grande City's fly destinations from the script cache

The map name popup prints a Battle Pyramid floor's name through RomText.refIr(), and the region map reads Ever Grande City's two fly destinations by sEverGrandeCityNames' labels, so both follow a text override.

src/ui/game3/map_name_popup.lua

@@ -155,7 +155,7 @@ local function rsePrint()
     local idx = pyramid.location(sess) == pyramid.LOCATION.TOP and #headers or
       (tonumber(pyramid.frontier(sess).curChallengeBattleNum) or 0) + 1
     local ref = headers[idx]
-    if ref then name = require("src.core.game3.scripting.text_ir").toPlain(ref.ir) end
+    if ref then name = require("src.core.game3.scripting.text_ir").toPlain(RomText.refIr(ref)) end
   elseif sec == rseConstants():id("region_map_sections", "MAPSEC_SECRET_BASE") then
     -- pokeemerald/src/secret_base.c:735
     local sb = R.system("secretBase")

src/ui/game3/rse/region_map.lua

@@ -353,14 +353,21 @@ local function newState(opts)
 end
 RegionMap.newState = newState
 
+-- pokeemerald/src/region_map.c:349: the name list each multi-name
+-- destination points at, which the script cache keys by its label.
+local MULTI_NAME_TABLES = { "sEverGrandeCityNames" }
+
 -- pokeemerald/src/region_map.c:1760
 function RegionMap.updateFlyText(s)
   s.flyText = nil
   if s.mapSecType > TYPE.NONE then
-    for _, m in ipairs(RegionMap.manifest().multiNameFlyDestinations) do
+    for i, m in ipairs(RegionMap.manifest().multiNameFlyDestinations) do
       if s.mapSecId == m.mapSecId then
         if flagSet(s, m.flag) then
-          s.flyText = { tall = true, name = s.mapSecName, sub = m.names[s.posWithinMapSec + 1] or "" }
+          local sub = m.names[s.posWithinMapSec + 1] or ""
+          local key = MULTI_NAME_TABLES[i] and RomText.key(MULTI_NAME_TABLES[i], s.posWithinMapSec)
+          if key and RomText.has(key) then sub = RomText.plain(key) end
+          s.flyText = { tall = true, name = s.mapSecName, sub = sub }
         end
         break
       end

tests/engine/game3_emerald_pack_text_test.lua

@@ -72,6 +72,22 @@ check(PyramidBag.description() == "Retourner au jeu", "the bag's return line nam
 BUNDLE.text.gText_TheField = nil
 check(PyramidBag.description() == "Retourner the field", "a place missing from the cache keeps the copy")
 
+-- Ever Grande City's fly destinations (pokeemerald/src/region_map.c:343).
+local RegionMap = require("src.ui.game3.rse.region_map")
+RegionMap.manifest = function()
+  return { multiNameFlyDestinations = { { names = { "POKéMON LEAGUE", "POKéMON CENTER" }, mapSecId = 5, flag = 2100 } } }
+end
+local function flySub()
+  local s = { mapSecType = RegionMap.TYPE.CITY_CANFLY, mapSecId = 5, posWithinMapSec = 1, mapSecName = "EVER GRANDE",
+    session = { flags = { [2100] = true } } }
+  RegionMap.updateFlyText(s)
+  return s.flyText.sub
+end
+BUNDLE.text = { ["sEverGrandeCityNames[1]"] = ir("CENTRE POKéMON") }
+check(flySub() == "CENTRE POKéMON", "a fly destination reads its name from the cache")
+BUNDLE.text = {}
+check(flySub() == "POKéMON CENTER", "a fly destination missing from the cache keeps the copy")
+
 if failed > 0 then
   print(failed .. " check(s) failed")
   os.exit(1)