import from github

data/maps/AlteringCave/map.json

@@ -0,0 +1,28 @@
+{
+  "id": "MAP_ALTERING_CAVE",
+  "name": "AlteringCave",
+  "layout": "LAYOUT_ALTERING_CAVE",
+  "music": "MUS_RG_SEVII_CAVE",
+  "region_map_section": "MAPSEC_ALTERING_CAVE",
+  "requires_flash": false,
+  "weather": "WEATHER_NONE",
+  "map_type": "MAP_TYPE_UNDERGROUND",
+  "allow_cycling": true,
+  "allow_escaping": true,
+  "allow_running": true,
+  "show_map_name": true,
+  "battle_scene": "MAP_BATTLE_SCENE_NORMAL",
+  "connections": null,
+  "object_events": [],
+  "warp_events": [
+    {
+      "x": 18,
+      "y": 22,
+      "elevation": 0,
+      "dest_map": "MAP_ROUTE103",
+      "dest_warp_id": 0
+    }
+  ],
+  "coord_events": [],
+  "bg_events": []
+}

data/maps/AlteringCave/scripts.inc

@@ -0,0 +1,8 @@
+AlteringCave_MapScripts::
+	map_script MAP_SCRIPT_ON_TRANSITION, AlteringCave_OnTransition
+	.byte 0
+
+AlteringCave_OnTransition:
+	setflag FLAG_LANDMARK_ALTERING_CAVE
+	end
+