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/RustboroCity_House1/scripts.inc

@@ -10,7 +10,7 @@ RustboroCity_House1_EventScript_21593F:: @ 821593F
 	copyvar VAR_0x8004, VAR_0x8008
 	specialvar VAR_RESULT, sub_807E73C
 	copyvar VAR_0x8009, VAR_RESULT
-	msgbox RustboroCity_House1_Text_2159E8, 5
+	msgbox RustboroCity_House1_Text_2159E8, MSGBOX_YESNO
 	compare VAR_RESULT, 0
 	goto_eq RustboroCity_House1_EventScript_2159BD
 	special sub_81B94B0
@@ -28,29 +28,29 @@ RustboroCity_House1_EventScript_21593F:: @ 821593F
 	special sub_807EA10
 	special sub_807F0E4
 	waitstate
-	msgbox RustboroCity_House1_Text_215A77, 4
+	msgbox RustboroCity_House1_Text_215A77, MSGBOX_DEFAULT
 	setflag FLAG_0x099
 	release
 	end
 
 RustboroCity_House1_EventScript_2159BD:: @ 82159BD
-	msgbox RustboroCity_House1_Text_215ACE, 4
+	msgbox RustboroCity_House1_Text_215ACE, MSGBOX_DEFAULT
 	release
 	end
 
 RustboroCity_House1_EventScript_2159C7:: @ 82159C7
 	bufferspeciesname 0, VAR_0x8009
-	msgbox RustboroCity_House1_Text_215A9D, 4
+	msgbox RustboroCity_House1_Text_215A9D, MSGBOX_DEFAULT
 	release
 	end
 
 RustboroCity_House1_EventScript_2159D5:: @ 82159D5
-	msgbox RustboroCity_House1_Text_215B17, 4
+	msgbox RustboroCity_House1_Text_215B17, MSGBOX_DEFAULT
 	release
 	end
 
 RustboroCity_House1_EventScript_2159DF:: @ 82159DF
-	msgbox RustboroCity_House1_Text_215B57, 2
+	msgbox RustboroCity_House1_Text_215B57, MSGBOX_NPC
 	end
 
 RustboroCity_House1_Text_2159E8: @ 82159E8