Use STRING_BUFFER_LENGTH for the wStringBuffers

constants/script_constants.asm

@@ -9,6 +9,8 @@ LAST_TALKED EQU -2
 	const STRING_BUFFER_5 ; use wStringBuffer5
 NUM_STRING_BUFFERS EQU const_value
 
+STRING_BUFFER_LENGTH EQU 19
+
 ; checkmoney/takemoney accounts
 	const_def
 	const YOUR_MONEY ; 0

engine/items/tmhm.asm

@@ -73,7 +73,7 @@ AskTeachTMHM:
 ChooseMonToLearnTMHM:
 	ld hl, wStringBuffer2
 	ld de, wTMHMMoveNameBackup
-	ld bc, 12
+	ld bc, MOVE_NAME_LENGTH - 1
 	call CopyBytes
 	call ClearBGPalettes
 	farcall LoadPartyMenuGFX
@@ -96,7 +96,7 @@ ChooseMonToLearnTMHM:
 	push bc
 	ld hl, wTMHMMoveNameBackup
 	ld de, wStringBuffer2
-	ld bc, 12
+	ld bc, MOVE_NAME_LENGTH - 1
 	call CopyBytes
 	pop af ; now contains the original contents of af
 	ret

engine/overworld/scripting.asm

@@ -1496,7 +1496,7 @@ GetStringBuffer:
 
 CopyConvertedText:
 	ld hl, wStringBuffer3
-	ld bc, wStringBuffer4 - wStringBuffer3
+	ld bc, STRING_BUFFER_LENGTH
 	call AddNTimes
 	call CopyName2
 	ret

wram.asm

@@ -1696,14 +1696,15 @@ wNumHits:: db
 
 	ds 1
 
-wMonOrItemNameBuffer:: ds 22
+wMonOrItemNameBuffer:: ds NAME_LENGTH
+	ds NAME_LENGTH
 wTMHMMoveNameBackup:: ds MOVE_NAME_LENGTH
 
-wStringBuffer1:: ds 19
-wStringBuffer2:: ds 19
-wStringBuffer3:: ds 19
-wStringBuffer4:: ds 19
-wStringBuffer5:: ds 13
+wStringBuffer1:: ds STRING_BUFFER_LENGTH
+wStringBuffer2:: ds STRING_BUFFER_LENGTH
+wStringBuffer3:: ds STRING_BUFFER_LENGTH
+wStringBuffer4:: ds STRING_BUFFER_LENGTH
+wStringBuffer5:: ds MOVE_NAME_LENGTH
 
 wBattleMenuCursorBuffer:: dw
 wCurBattleMon:: db