adds constants, cleans up callstd and msgbox code

* adds some constants for standard script names and messagebox types
* replaces some callstd calls with msgbox calls where equivalent
* replaces msgbox and callstd calls using raw digits with versions that use the constants

data/maps/FortreeCity_House1/scripts.inc

@@ -10,7 +10,7 @@ FortreeCity_House1_EventScript_2162BB:: @ 82162BB
 	copyvar VAR_0x8004, VAR_0x8008
 	specialvar VAR_RESULT, sub_807E73C
 	copyvar VAR_0x8009, VAR_RESULT
-	msgbox FortreeCity_House1_Text_21637B, 5
+	msgbox FortreeCity_House1_Text_21637B, MSGBOX_YESNO
 	compare VAR_RESULT, 0
 	goto_eq FortreeCity_House1_EventScript_21633D
 	special sub_81B94B0
@@ -29,29 +29,29 @@ FortreeCity_House1_EventScript_2162BB:: @ 82162BB
 	special sub_807F0E4
 	waitstate
 	bufferspeciesname 0, VAR_0x8009
-	msgbox FortreeCity_House1_Text_216440, 4
+	msgbox FortreeCity_House1_Text_216440, MSGBOX_DEFAULT
 	setflag FLAG_0x09B
 	release
 	end
 
 FortreeCity_House1_EventScript_21633D:: @ 821633D
-	msgbox FortreeCity_House1_Text_21649F, 4
+	msgbox FortreeCity_House1_Text_21649F, MSGBOX_DEFAULT
 	release
 	end
 
 FortreeCity_House1_EventScript_216347:: @ 8216347
 	bufferspeciesname 0, VAR_0x8009
-	msgbox FortreeCity_House1_Text_216474, 4
+	msgbox FortreeCity_House1_Text_216474, MSGBOX_DEFAULT
 	release
 	end
 
 FortreeCity_House1_EventScript_216355:: @ 8216355
-	msgbox FortreeCity_House1_Text_2164DB, 4
+	msgbox FortreeCity_House1_Text_2164DB, MSGBOX_DEFAULT
 	release
 	end
 
 FortreeCity_House1_EventScript_21635F:: @ 821635F
-	msgbox FortreeCity_House1_Text_21653B, 2
+	msgbox FortreeCity_House1_Text_21653B, MSGBOX_NPC
 	end
 
 FortreeCity_House1_EventScript_216368:: @ 8216368
@@ -59,7 +59,7 @@ FortreeCity_House1_EventScript_216368:: @ 8216368
 	faceplayer
 	waitse
 	playmoncry SPECIES_ZIGZAGOON, 0
-	msgbox FortreeCity_House1_Text_216597, 4
+	msgbox FortreeCity_House1_Text_216597, MSGBOX_DEFAULT
 	waitmoncry
 	release
 	end