Sevii Region groundwork

This adds the baseline infrastructure to account for the Sevii Islands, while also fixing a couple of bugs. Zeta, please read the commit carefully!

Only real issue I noticed was that scrolling on the town map is infinite in all three new regions, implying there's something in `pokegear.asm` I haven't accounted for.

I've also ret'd the ezchat order and gen1 orders out of existence to reduce the sheer amount of 8-bit warnings. This abolishes gen1 compatibility (though this was already a bit fucked) in exchange for actually being able to debug things in a reasonable timeframe.

maps/DebugRoom.asm

@@ -398,7 +398,7 @@ DebugRoom_MapEvents:
 	warp_event 27,  5, PEWTER_CITY, 2
 	warp_event 15,  2, GOLDENROD_CITY, 1 ; city warp
 	warp_event  4,  9, SUMMER_BEACH_HOUSE, 1 ; left lab/league warp
-	warp_event  5,  9, PALLET_TOWN, 1 ; right lab/league warp
+	warp_event  5,  9, ONE_ISLAND, 1 ; right lab/league warp
 	warp_event 35, 17, OLD_CITY, 1 ; east warp
 	warp_event  5, 35, LAVENDER_TOWN, 1 ; southwest warp
 	warp_event 19, 34, SAFARI_ZONE_FUCHSIA_GATE_BETA, 3 ; southern warp

maps/FiveIsland.asm

@@ -4,6 +4,11 @@ FiveIsland_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_NEWMAP, FiveIslandFlypointCallback
+
+FiveIslandFlypointCallback:
+	setflag ENGINE_FLYPOINT_FIVE_ISLAND
+	endcallback
 
 FiveIsland_MapEvents:
 	db 0, 0 ; filler

maps/FourIsland.asm

@@ -4,6 +4,11 @@ FourIsland_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_NEWMAP, FourIslandFlypointCallback
+
+FourIslandFlypointCallback:
+	setflag ENGINE_FLYPOINT_FOUR_ISLAND
+	endcallback
 
 FourIsland_MapEvents:
 	db 0, 0 ; filler

maps/OneIsland.asm

@@ -4,16 +4,54 @@ OneIsland_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_NEWMAP, OneIslandFlypointCallback
+
+OneIslandFlypointCallback:
+	setflag ENGINE_FLYPOINT_ONE_ISLAND
+	endcallback
+
+OneIslandSign1:
+	jumptext OneIslandSign1Text
+
+OneIslandSign1Text:
+	text "Comment to be"
+	line "written."
+	done
+
+OneIslandSign2:
+	jumptext OneIslandSign2Text
+
+OneIslandSign2Text:
+	text "Comment to be"
+	line "written."
+	done
+
+OneIslandSailorScript:
+	jumptextfaceplayer OneIslandSailorText
+
+OneIslandSailorText:
+	text "Shove off! I'm"
+	line "workin', 'ere!"
+	
+	para "Bolt south to"
+	line "TREASURE BEACH"
+	cont "or somethin'!"
+	done
 
 OneIsland_MapEvents:
 	db 0, 0 ; filler
 
 	def_warp_events
-	warp_event 14, 19, DEBUG_ROOM, 1
-	warp_event 15, 19, DEBUG_ROOM, 1
+	warp_event 14, 19, DEBUG_ROOM, 1 ; port
+	warp_event 15, 19, DEBUG_ROOM, 1 ; port
+	
+	warp_event 17,  6, DEBUG_ROOM, 1 ; pokecenter
+	warp_event 11, 13, DEBUG_ROOM, 1 ; left house
+	warp_event 21, 11, DEBUG_ROOM, 1 ; right house
 
 	def_coord_events
 
 	def_bg_events
 
-	def_object_events
+	def_object_events
+	object_event 19, 23, SPRITE_SAILOR, SPRITEMOVEDATA_STANDING_UP, 0, 0, -1, -1, 0, OBJECTTYPE_SCRIPT, 0, OneIslandSailorScript, -1

maps/SevenIsland.asm

@@ -4,6 +4,11 @@ SevenIsland_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_NEWMAP, SevenIslandFlypointCallback
+
+SevenIslandFlypointCallback:
+	setflag ENGINE_FLYPOINT_SEVEN_ISLAND
+	endcallback
 
 SevenIsland_MapEvents:
 	db 0, 0 ; filler

maps/SixIsland.asm

@@ -4,6 +4,11 @@ SixIsland_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_NEWMAP, SixIslandFlypointCallback
+
+SixIslandFlypointCallback:
+	setflag ENGINE_FLYPOINT_SIX_ISLAND
+	endcallback
 
 SixIsland_MapEvents:
 	db 0, 0 ; filler

maps/ThreeIsland.asm

@@ -4,6 +4,11 @@ ThreeIsland_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_NEWMAP, ThreeIslandFlypointCallback
+
+ThreeIslandFlypointCallback:
+	setflag ENGINE_FLYPOINT_THREE_ISLAND
+	endcallback
 
 ThreeIsland_MapEvents:
 	db 0, 0 ; filler

maps/TwoIsland.asm

@@ -4,6 +4,11 @@ TwoIsland_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_NEWMAP, TwoIslandFlypointCallback
+
+TwoIslandFlypointCallback:
+	setflag ENGINE_FLYPOINT_TWO_ISLAND
+	endcallback
 
 TwoIsland_MapEvents:
 	db 0, 0 ; filler