NPC trade constants don't all just start with TRADE_

constants/npc_trade_constants.asm

@@ -0,0 +1,44 @@
+	; npctrade struct members (see data/events/npc_trades.asm)
+NPCTRADE_DIALOG  EQU  0 ; db
+NPCTRADE_GIVEMON EQU  1 ; db
+NPCTRADE_GETMON  EQU  2 ; db
+NPCTRADE_NICK    EQU  3 ; ds MON_NAME_LENGTH
+NPCTRADE_DVS     EQU 14 ; dw
+NPCTRADE_ITEM    EQU 16 ; db
+NPCTRADE_OT_ID   EQU 17 ; dw
+NPCTRADE_OT_NAME EQU 19 ; ds NAME_LENGTH
+NPCTRADE_GENDER  EQU 30 ; db
+NPCTRADE_PADDING EQU 31 ; db
+
+; NPCTrades indexes (see data/events/npc_trades.asm)
+	const_def
+	const NPC_TRADE_MIKE   ; 0
+	const NPC_TRADE_KYLE   ; 1
+	const NPC_TRADE_TIM    ; 2
+	const NPC_TRADE_EMY    ; 3
+	const NPC_TRADE_CHRIS  ; 4
+	const NPC_TRADE_KIM    ; 5
+	const NPC_TRADE_FOREST ; 6
+
+; trade gender limits
+	const_def
+	const TRADE_GENDER_EITHER
+	const TRADE_GENDER_MALE
+	const TRADE_GENDER_FEMALE
+
+; TradeTexts indexes (see engine/events/npc_trade.asm)
+
+; trade dialogs
+	const_def
+	const TRADE_DIALOG_INTRO
+	const TRADE_DIALOG_CANCEL
+	const TRADE_DIALOG_WRONG
+	const TRADE_DIALOG_COMPLETE
+	const TRADE_DIALOG_AFTER
+
+; trade dialog sets
+	const_def
+	const TRADE_DIALOGSET_COLLECTOR
+	const TRADE_DIALOGSET_HAPPY
+	const TRADE_DIALOGSET_NEWBIE
+	const TRADE_DIALOGSET_GIRL