Reverse engineered many of the multiplayer events

Some corrections to the way events are handled and identified.

10 files changed, 88 insertions, 84 deletions

diff --git a/data/event_scripts.s b/data/event_scripts.s
index 8d8b0cd68..1e7dbe237 100644
--- a/data/event_scripts.s
+++ b/data/event_scripts.s
@@ -1157,21 +1157,21 @@ EverGrandeCity_HallOfFame_EventScript_271851:: @ 8271851
 	setvar VAR_0x40D3, 1
 	return
 
-EventScript_WhiteOut:: @ 8271857
+gEventScript_WhiteOut:: @ 8271857
 	call EverGrandeCity_HallOfFame_EventScript_2718CC
-	goto EventScript_271862
+	goto gEventScript_ResetMrBriney
 	end
 
-EventScript_271862:: @ 8271862
+gEventScript_ResetMrBriney:: @ 8271862
 	compare VAR_0x4096, 1
-	goto_if_eq EverGrandeCity_HallOfFame_EventScript_271884
+	goto_if_eq EventScript_MoveMrBrineyToHouse
 	compare VAR_0x4096, 2
-	goto_if_eq EverGrandeCity_HallOfFame_EventScript_27189A
+	goto_if_eq EventScript_MoveMrBrineyToDewford
 	compare VAR_0x4096, 3
-	goto_if_eq EverGrandeCity_HallOfFame_EventScript_2718B3
+	goto_if_eq EventScript_MoveMrBrineyToRoute108
 	end
 
-EverGrandeCity_HallOfFame_EventScript_271884:: @ 8271884
+EventScript_MoveMrBrineyToHouse:: @ 8271884
 	setflag FLAG_HIDE_MR_BRINEY_DEWFORD_TOWN
 	setflag FLAG_HIDE_MR_BRINEY_BOAT_DEWFORD_TOWN
 	setflag FLAG_HIDE_ROUTE_108_MR_BRINEY
@@ -1181,7 +1181,7 @@ EverGrandeCity_HallOfFame_EventScript_271884:: @ 8271884
 	clearflag FLAG_HIDE_BRINEYS_HOUSE_PEEKO
 	end
 
-EverGrandeCity_HallOfFame_EventScript_27189A:: @ 827189A
+EventScript_MoveMrBrineyToDewford:: @ 827189A
 	setflag FLAG_HIDE_ROUTE_108_MR_BRINEY
 	setflag FLAG_HIDE_ROUTE_109_MR_BRINEY_BOAT
 	setflag FLAG_HIDE_ROUTE_104_MR_BRINEY
@@ -1192,7 +1192,7 @@ EverGrandeCity_HallOfFame_EventScript_27189A:: @ 827189A
 	clearflag FLAG_HIDE_MR_BRINEY_BOAT_DEWFORD_TOWN
 	end
 
-EverGrandeCity_HallOfFame_EventScript_2718B3:: @ 82718B3
+EventScript_MoveMrBrineyToRoute108:: @ 82718B3
 	setflag FLAG_HIDE_ROUTE_104_MR_BRINEY
 	setflag FLAG_HIDE_ROUTE_104_MR_BRINEY_BOAT
 	setflag FLAG_HIDE_BRINEYS_HOUSE_MR_BRINEY
@@ -1610,7 +1610,7 @@ EventScript_271D5E:: @ 8271D5E
 	goto EventScript_271D89
 
 EventScript_271D83:: @ 8271D83
-	special sub_80E6BE8
+	special EventScript_RecordMixingPlayerSpotTriggered
 	waitstate
 	lock
 	faceplayer
diff --git a/data/io_reg.s b/data/io_reg.s
index e6315cd89..9c5f64f58 100644
--- a/data/io_reg.s
+++ b/data/io_reg.s
@@ -24,11 +24,11 @@ gUnref_82EC784:: @ 82EC784
     .4byte 0x02000100
     .4byte 0x08000400
 
-gUnknown_82EC7C4:: @ 82EC7C4
-	.2byte 0x0100
-	.2byte 0x0200
-	.2byte 0x0400
-	.2byte 0x0800
+gOverworldBackgroundLayerFlags:: @ 82EC7C4
+	.2byte 0x0100 /* BLDCNT_TGT2_BG0 */
+	.2byte 0x0200 /* BLDCNT_TGT2_BG1 */
+	.2byte 0x0400 /* BLDCNT_TGT2_BG2 */
+	.2byte 0x0800 /* BLDCNT_TGT2_BG3 */
 
 gUnknown_82EC7CC:: @ 82EC7CC
 	.2byte 0x0001
diff --git a/data/maps/DoubleBattleColosseum/map.json b/data/maps/DoubleBattleColosseum/map.json
index c0cd88761..b46c8fa3e 100644
--- a/data/maps/DoubleBattleColosseum/map.json
+++ b/data/maps/DoubleBattleColosseum/map.json
@@ -52,7 +52,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_08277388"
+      "script": "gEventScript_DoubleBattleColosseum_PlayerSpot0"
     },
     {
       "type": "trigger",
@@ -61,7 +61,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_082773BE"
+      "script": "gEventScript_DoubleBattleColosseum_PlayerSpot2"
     },
     {
       "type": "trigger",
@@ -70,7 +70,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_082773A3"
+      "script": "gEventScript_DoubleBattleColosseum_PlayerSpot1"
     },
     {
       "type": "trigger",
@@ -79,7 +79,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_082773D9"
+      "script": "gEventScript_DoubleBattleColosseum_PlayerSpot3"
     }
   ],
   "bg_events": []
diff --git a/data/maps/MossdeepCity_SpaceCenter_2F/scripts.inc b/data/maps/MossdeepCity_SpaceCenter_2F/scripts.inc
index 0602c9dad..d2e5dded1 100644
--- a/data/maps/MossdeepCity_SpaceCenter_2F/scripts.inc
+++ b/data/maps/MossdeepCity_SpaceCenter_2F/scripts.inc
@@ -248,7 +248,7 @@ MossdeepCity_SpaceCenter_2F_EventScript_22400C:: @ 822400C
 	waitmovement 0
 	special SavePlayerParty
 	fadescreen 1
-	special sub_80F9438
+	special EventScript_ChooseHalfPartyForBattle
 	waitstate
 	compare VAR_RESULT, 0
 	goto_if_ne MossdeepCity_SpaceCenter_2F_EventScript_224032
diff --git a/data/maps/RecordCorner/map.json b/data/maps/RecordCorner/map.json
index 98bcc0201..9bf870a52 100644
--- a/data/maps/RecordCorner/map.json
+++ b/data/maps/RecordCorner/map.json
@@ -66,7 +66,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_0827741D"
+      "script": "gEventScript_RecordCenter_Spot0"
     },
     {
       "type": "trigger",
@@ -75,7 +75,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_08277447"
+      "script": "gEventScript_RecordCenter_Spot2"
     },
     {
       "type": "trigger",
@@ -84,7 +84,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_08277432"
+      "script": "gEventScript_RecordCenter_Spot1"
     },
     {
       "type": "trigger",
@@ -93,7 +93,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_0827745C"
+      "script": "gEventScript_RecordCenter_Spot3"
     }
   ],
   "bg_events": []
diff --git a/data/maps/SingleBattleColosseum/map.json b/data/maps/SingleBattleColosseum/map.json
index a2cc78b2f..4576bc042 100644
--- a/data/maps/SingleBattleColosseum/map.json
+++ b/data/maps/SingleBattleColosseum/map.json
@@ -52,7 +52,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_08277374"
+      "script": "gEventScript_SingleBattleColosseum_PlayerSpot0"
     },
     {
       "type": "trigger",
@@ -61,7 +61,7 @@
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_0827737E"
+      "script": "gEventScript_SingleBattleColosseum_PlayerSpot1"
     }
   ],
   "bg_events": []
diff --git a/data/maps/SootopolisCity_MysteryEventsHouse_1F/scripts.inc b/data/maps/SootopolisCity_MysteryEventsHouse_1F/scripts.inc
index 5db204293..2d8de4bb4 100644
--- a/data/maps/SootopolisCity_MysteryEventsHouse_1F/scripts.inc
+++ b/data/maps/SootopolisCity_MysteryEventsHouse_1F/scripts.inc
@@ -129,7 +129,7 @@ SootopolisCity_MysteryEventsHouse_1F_EventScript_227AE2:: @ 8227AE2
 SootopolisCity_MysteryEventsHouse_1F_EventScript_227AEF:: @ 8227AEF
 	msgbox SootopolisCity_MysteryEventsHouse_1F_Text_227C84, MSGBOX_DEFAULT
 	fadescreen 1
-	special sub_80F9438
+	special EventScript_ChooseHalfPartyForBattle
 	waitstate
 	return
 
diff --git a/data/maps/TradeCenter/map.json b/data/maps/TradeCenter/map.json
index f7511a753..6ab2bdbe1 100644
--- a/data/maps/TradeCenter/map.json
+++ b/data/maps/TradeCenter/map.json
@@ -46,22 +46,24 @@
   ],
   "coord_events": [
     {
+      "comment": "This is trade seat #1.",
       "type": "trigger",
       "x": 4,
       "y": 5,
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_082773F5"
+      "script": "gEventScript_TradeCenter_Chair0"
     },
     {
+      "comment": "This is trade seat #2.",
       "type": "trigger",
       "x": 7,
       "y": 5,
       "elevation": 3,
       "var": "VAR_TEMP_0",
       "var_value": 0,
-      "script": "gUnknown_082773FF"
+      "script": "gEventScript_TradeCenter_Chair1"
     }
   ],
   "bg_events": []
diff --git a/data/scripts/cable_club.inc b/data/scripts/cable_club.inc
index c5e8a41a7..dbd664dbc 100644
--- a/data/scripts/cable_club.inc
+++ b/data/scripts/cable_club.inc
@@ -791,116 +791,118 @@ EventScript_CableBoxResults:: @ 8277365
 	releaseall
 	end
 
-gUnknown_08277374:: @ 8277374
+gEventScript_SingleBattleColosseum_PlayerSpot0:: @ 8277374
 	setvar VAR_0x8005, 0
-	special sub_80B3968
+	special EventScript_ColosseumPlayerSpotTriggered
 	waitstate
 	end
 
-gUnknown_0827737E:: @ 827737E
+gEventScript_SingleBattleColosseum_PlayerSpot1:: @ 827737E
 	setvar VAR_0x8005, 1
-	special sub_80B3968
+	special EventScript_ColosseumPlayerSpotTriggered
 	waitstate
 	end
 
-gUnknown_08277388:: @ 8277388
+gEventScript_DoubleBattleColosseum_PlayerSpot0:: @ 8277388
 	fadescreen 1
-	special sub_80F9438
+	special EventScript_ChooseHalfPartyForBattle
 	waitstate
 	compare VAR_RESULT, 0
-	goto_if_eq DoubleBattleColosseum_EventScript_2773F4
+	goto_if_eq gEventScript_DoubleBattleColosseum_CancelSpotTrigger
 	setvar VAR_0x8005, 0
-	special sub_80B3968
+	special EventScript_ColosseumPlayerSpotTriggered
 	waitstate
 	end
 
-gUnknown_082773A3:: @ 82773A3
+gEventScript_DoubleBattleColosseum_PlayerSpot1:: @ 82773A3
 	fadescreen 1
-	special sub_80F9438
+	special EventScript_ChooseHalfPartyForBattle
 	waitstate
 	compare VAR_RESULT, 0
-	goto_if_eq DoubleBattleColosseum_EventScript_2773F4
+	goto_if_eq gEventScript_DoubleBattleColosseum_CancelSpotTrigger
 	setvar VAR_0x8005, 1
-	special sub_80B3968
+	special EventScript_ColosseumPlayerSpotTriggered
 	waitstate
 	end
 
-gUnknown_082773BE:: @ 82773BE
+gEventScript_DoubleBattleColosseum_PlayerSpot2:: @ 82773BE
 	fadescreen 1
-	special sub_80F9438
+	special EventScript_ChooseHalfPartyForBattle
 	waitstate
 	compare VAR_RESULT, 0
-	goto_if_eq DoubleBattleColosseum_EventScript_2773F4
+	goto_if_eq gEventScript_DoubleBattleColosseum_CancelSpotTrigger
 	setvar VAR_0x8005, 2
-	special sub_80B3968
+	special EventScript_ColosseumPlayerSpotTriggered
 	waitstate
 	end
 
-gUnknown_082773D9:: @ 82773D9
+gEventScript_DoubleBattleColosseum_PlayerSpot3:: @ 82773D9
 	fadescreen 1
-	special sub_80F9438
+	special EventScript_ChooseHalfPartyForBattle
 	waitstate
 	compare VAR_RESULT, 0
-	goto_if_eq DoubleBattleColosseum_EventScript_2773F4
+	goto_if_eq gEventScript_DoubleBattleColosseum_CancelSpotTrigger
 	setvar VAR_0x8005, 3
-	special sub_80B3968
+	special EventScript_ColosseumPlayerSpotTriggered
 	waitstate
 	end
 
-DoubleBattleColosseum_EventScript_2773F4:: @ 82773F4
+gEventScript_DoubleBattleColosseum_CancelSpotTrigger:: @ 82773F4
 	end
 
-gUnknown_082773F5:: @ 82773F5
+gEventScript_TradeCenter_Chair0:: @ 82773F5
 	setvar VAR_0x8005, 0
-	special sub_80B3924
+	special EventScript_PlayerEnteredTradeSeat
 	waitstate
 	end
 
-gUnknown_082773FF:: @ 82773FF
+gEventScript_TradeCenter_Chair1:: @ 82773FF
 	setvar VAR_0x8005, 1
-	special sub_80B3924
+	special EventScript_PlayerEnteredTradeSeat
 	waitstate
 	end
 
-gUnknown_08277409:: @ 8277409
+/* Never used */
+gEventScript_TradeCenter_Chair2:: @ 8277409
 	setvar VAR_0x8005, 2
-	special sub_80B3924
+	special EventScript_PlayerEnteredTradeSeat
 	waitstate
 	end
 
-gUnknown_08277413:: @ 8277413
+/* Never used */
+gEventScript_TradeCenter_Chair3:: @ 8277413
 	setvar VAR_0x8005, 3
-	special sub_80B3924
+	special EventScript_PlayerEnteredTradeSeat
 	waitstate
 	end
 
-gUnknown_0827741D:: @ 827741D
+gEventScript_RecordCenter_Spot0:: @ 827741D
 	setvar VAR_0x8005, 0
-	special sub_80E6BE8
+	special EventScript_RecordMixingPlayerSpotTriggered
 	waitstate
 	compare VAR_TEMP_1, 0
 	goto_if_ne RecordCorner_EventScript_277471
 	end
 
-gUnknown_08277432:: @ 8277432
+gEventScript_RecordCenter_Spot1:: @ 8277432
 	setvar VAR_0x8005, 1
-	special sub_80E6BE8
+	special EventScript_RecordMixingPlayerSpotTriggered
 	waitstate
 	compare VAR_TEMP_1, 0
 	goto_if_ne RecordCorner_EventScript_277471
 	end
 
-gUnknown_08277447:: @ 8277447
+gEventScript_RecordCenter_Spot2:: @ 8277447
 	setvar VAR_0x8005, 2
-	special sub_80E6BE8
+	special EventScript_RecordMixingPlayerSpotTriggered
 	waitstate
 	compare VAR_TEMP_1, 0
 	goto_if_ne RecordCorner_EventScript_277471
 	end
 
-gUnknown_0827745C:: @ 827745C
+gEventScript_RecordCenter_Spot3:: @ 827745C
 	setvar VAR_0x8005, 3
-	special sub_80E6BE8
+	special EventScript_RecordMixingPlayerSpotTriggered
 	waitstate
 	compare VAR_TEMP_1, 0
 	goto_if_ne RecordCorner_EventScript_277471
@@ -914,21 +916,21 @@ RecordCorner_EventScript_277471:: @ 8277471
 	releaseall
 	end
 
-EventScript_TradeRoom_ReadTrainerCard_NoColor:: @ 827747E
+gEventScript_TradeRoom_ReadTrainerCard_NoColor:: @ 827747E
 	msgbox Text_278452, MSGBOX_DEFAULT
 	fadescreen 1
 	special sp02A_crash_sound
 	waitstate
 	end
 
-EventScript_TradeRoom_ReadTrainerCard_Normal:: @ 827748D
+gEventScript_TradeRoom_ReadTrainerCard_Normal:: @ 827748D
 	msgbox Text_27847B, MSGBOX_DEFAULT
 	fadescreen 1
 	special sp02A_crash_sound
 	waitstate
 	end
 
-EventScript_TradeRoom_TooBusyToNotice:: @ 827749C
+gEventScript_TradeRoom_TooBusyToNotice:: @ 827749C
 	msgbox Text_27842E, MSGBOX_DEFAULT
 	closemessage
 	end
@@ -968,21 +970,21 @@ RecordCorner_EventScript_2774E0:: @ 82774E0
 	end
 
 gEventScript_ConfirmLeaveTradeRoom:: @ 82774EF
-	msgbox Text_2783A8, MSGBOX_YESNO
+	msgbox Text_TerminateLinkConfirmation, MSGBOX_YESNO
 	compare VAR_RESULT, 1
-	goto_if_eq gUnknown_08277509
+	goto_if_eq gEventScript_TerminateLink
 	erasebox 0, 0, 29, 19
 	releaseall
 	end
 
-gUnknown_08277509:: @ 8277509
-	messageautoscroll Text_2783E9
+gEventScript_TerminateLink:: @ 8277509
+	messageautoscroll Text_TerminateLinkPleaseWait
 	waitmessage
-	special sub_80B371C
+	special EventScript_ExitLinkRoom
 	end
 
-EventScript_277513:: @ 8277513
-	special sub_80B36EC
+gEventScript_DoLinkRoomExit:: @ 8277513
+	special EventScript_CleanupLinkRoomState
 	special sub_80AF9F8
 	waitstate
 	end
@@ -1736,11 +1738,11 @@ OldaleTown_PokemonCenter_2F_Text_278372: @ 8278372
 	.string "Please confirm the number of\n"
 	.string "players and start again.$"
 
-Text_2783A8: @ 82783A8
+Text_TerminateLinkConfirmation: @ 82783A8
 	.string "The link will be terminated if you\n"
 	.string "leave the room. Is that okay?$"
 
-Text_2783E9: @ 82783E9
+Text_TerminateLinkPleaseWait: @ 82783E9
 	.string "Terminating link…\n"
 	.string "You will be escorted out of\l"
 	.string "the room. Please wait.$"
diff --git a/data/specials.inc b/data/specials.inc
index b3ca15ed1..e13a23ab0 100644
--- a/data/specials.inc
+++ b/data/specials.inc
@@ -12,8 +12,8 @@ gSpecials:: @ 81DBA64
 	def_special SetCableClubWarp
 	def_special sub_80AF948
 	def_special sub_80AF9F8
-	def_special sub_80B36EC
-	def_special sub_80B371C
+	def_special EventScript_CleanupLinkRoomState
+	def_special EventScript_ExitLinkRoom
 	def_special sub_80E8E18
 	def_special sub_80E8BC8
 	def_special sub_80E9068
@@ -35,14 +35,14 @@ gSpecials:: @ 81DBA64
 	def_special sub_80E91F8
 	def_special sub_80EA30C
 	def_special DoSecretBasePCTurnOffEffect
-	def_special sub_80E6BE8
+	def_special EventScript_RecordMixingPlayerSpotTriggered
 	def_special sub_80B2DA4
 	def_special sub_80B2E4C
 	def_special sub_80B2E74
 	def_special sub_80B2EA8
 	def_special CloseLink
-	def_special sub_80B3968
-	def_special sub_80B3924
+	def_special EventScript_ColosseumPlayerSpotTriggered
+	def_special EventScript_PlayerEnteredTradeSeat
 	def_special nullsub_37
 	def_special sub_80B3254
 	def_special sub_80B2FD8
@@ -50,7 +50,7 @@ gSpecials:: @ 81DBA64
 	def_special SpawnLinkPartnerEventObject
 	def_special SavePlayerParty
 	def_special LoadPlayerParty
-	def_special sub_80F9438
+	def_special EventScript_ChooseHalfPartyForBattle
 	def_special sp02A_crash_sound
 	def_special EventObjectInteractionGetBerryTreeData
 	def_special EventObjectInteractionGetBerryName