Identify and eliminate wEngineBuffer1-5

engine/events/elevator.asm

@@ -28,7 +28,7 @@ Elevator::
 
 .LoadFloors:
 	ld de, wCurElevator
-	ld bc, 4
+	ld bc, wElevatorDataEnd - wElevatorData
 	ld hl, wElevatorPointer
 	ld a, [hli]
 	ld h, [hl]
@@ -104,12 +104,12 @@ Elevator_GoToFloor:
 	ld l, a
 	inc hl
 	pop af
-	ld bc, 4
+	ld bc, wElevatorDataEnd - wElevatorData
 	call AddNTimes
 	inc hl
 	ld de, wBackupWarpNumber
 	ld a, [wElevatorPointerBank]
-	ld bc, 3
+	ld bc, wElevatorDataEnd - wElevatorData - 1
 	call FarCopyBytes
 	ret
 

engine/events/misc_scripts.asm

@@ -40,14 +40,14 @@ FindItemInBallScript::
 .TryReceiveItem:
 	xor a
 	ld [wScriptVar], a
-	ld a, [wEngineBuffer1]
+	ld a, [wItemBallItemID]
 	ld [wNamedObjectIndexBuffer], a
 	call GetItemName
 	ld hl, wStringBuffer3
 	call CopyName2
-	ld a, [wEngineBuffer1]
+	ld a, [wItemBallItemID]
 	ld [wCurItem], a
-	ld a, [wCurFruit]
+	ld a, [wItemBallQuantity]
 	ld [wItemQuantityChangeBuffer], a
 	ld hl, wNumItems
 	call ReceiveItem

engine/events/misc_scripts_2.asm

@@ -12,7 +12,7 @@ RepelWoreOffScript::
 
 HiddenItemScript::
 	opentext
-	readmem wEngineBuffer3
+	readmem wHiddenItemID
 	getitemname STRING_BUFFER_3, USE_SCRIPT_VAR
 	writetext .found_text
 	giveitem ITEM_FROM_MEM
@@ -42,7 +42,7 @@ HiddenItemScript::
 	text_end
 
 SetMemEvent:
-	ld hl, wEngineBuffer1
+	ld hl, wHiddenItemEvent
 	ld a, [hli]
 	ld d, [hl]
 	ld e, a

engine/events/mom_phone.asm

@@ -39,13 +39,13 @@ MomTriesToBuySomething::
 .ok
 	ld a, PHONE_MOM
 	ld [wCurCaller], a
-	ld bc, wEngineBuffer2
-	ld hl, 0
+	ld bc, wCallerContact
+	ld hl, PHONE_CONTACT_TRAINER_CLASS
 	add hl, bc
-	ld [hl], 0
+	ld [hl], TRAINER_NONE
 	inc hl
-	ld [hl], 1
-	ld hl, wPhoneScriptPointer - wEngineBuffer2
+	ld [hl], PHONE_MOM
+	ld hl, PHONE_CONTACT_SCRIPT2_BANK
 	add hl, bc
 	ld a, BANK(Mom_GetScriptPointer)
 	ld [hli], a

engine/events/overworld.asm

@@ -500,7 +500,7 @@ TrySurfOW::
 	jr z, .quit
 
 ; Must be facing water.
-	ld a, [wEngineBuffer1]
+	ld a, [wFacingTileID]
 	call GetTileCollision
 	cp WATERTILE
 	jr nz, .quit

engine/events/poisonstep.asm

@@ -4,29 +4,29 @@ DoPoisonStep::
 	jr z, .no_faint
 
 	xor a
-	ld c, 7
-	ld hl, wEngineBuffer1
-.loop_clearEngineBuffer1
+	ld c, wPoisonStepDataEnd - wPoisonStepData
+	ld hl, wPoisonStepData
+.loop_clearPoisonStepData
 	ld [hli], a
 	dec c
-	jr nz, .loop_clearEngineBuffer1
+	jr nz, .loop_clearPoisonStepData
 
 	xor a
 	ld [wCurPartyMon], a
 .loop_check_poison
 	call .DamageMonIfPoisoned
 	jr nc, .not_poisoned
-; the output flag is stored in c, copy it to the ([wCurPartyMon] + 2)nd EngineBuffer
-; and set the corresponding flag in wEngineBuffer1
+; the output flag is stored in c, copy it to [wPoisonStepPartyFlags + [wCurPartyMon]]
+; and set the corresponding flag in wPoisonStepFlagSum
 	ld a, [wCurPartyMon]
 	ld e, a
 	ld d, 0
-	ld hl, wEngineBuffer2
+	ld hl, wPoisonStepPartyFlags
 	add hl, de
 	ld [hl], c
-	ld a, [wEngineBuffer1]
+	ld a, [wPoisonStepFlagSum]
 	or c
-	ld [wEngineBuffer1], a
+	ld [wPoisonStepFlagSum], a
 
 .not_poisoned
 	ld a, [wPartyCount]
@@ -35,10 +35,10 @@ DoPoisonStep::
 	cp [hl]
 	jr nz, .loop_check_poison
 
-	ld a, [wEngineBuffer1]
+	ld a, [wPoisonStepFlagSum]
 	and %10
 	jr nz, .someone_has_fainted
-	ld a, [wEngineBuffer1]
+	ld a, [wPoisonStepFlagSum]
 	and %01
 	jr z, .no_faint
 	call .PlayPoisonSFX
@@ -120,7 +120,7 @@ DoPoisonStep::
 .CheckWhitedOut:
 	xor a
 	ld [wCurPartyMon], a
-	ld de, wEngineBuffer2
+	ld de, wPoisonStepPartyFlags
 .party_loop
 	push de
 	ld a, [de]