Miscellaneous updates

- `PREDEFPAL_00` -> `PREDEFPAL_ROUTES` (observed from `LoadSGBLayout.GetMapPalsIndex.route`)
- `$0` -> `PLAYER` (standard person ID)
- Fix some whitespace formatting

constants/scgb_constants.asm

@@ -38,7 +38,7 @@ SCGB_RAM EQU -1
 ; PredefPals indexes (see gfx/sgb/predef.pal)
 ; GetPredefPal arguments (see engine/gfx/color.asm)
 	const_def
-	const PREDEFPAL_00
+	const PREDEFPAL_ROUTES
 	const PREDEFPAL_PALLET
 	const PREDEFPAL_VIRIDIAN
 	const PREDEFPAL_PEWTER

data/maps/sgb_roof_pal_inds.asm

@@ -2,7 +2,7 @@
 
 MapGroupRoofSGBPalInds:
 ; entries correspond to map groups
-	db PREDEFPAL_00
+	db PREDEFPAL_ROUTES
 	db PREDEFPAL_OLIVINE
 	db PREDEFPAL_MAHOGANY
 	db PREDEFPAL_DUNGEONS

engine/gfx/sgb_layouts.asm

@@ -547,7 +547,7 @@ endr
 	ret
 
 .route
-	ld a, PREDEFPAL_00
+	ld a, PREDEFPAL_ROUTES
 	ret
 
 .cave

engine/overworld/player_movement.asm

@@ -577,11 +577,14 @@ DoPlayerMovement::
 ; Standing
 	jr .update
 
-.d_down 	add hl, de
-.d_up   	add hl, de
-.d_left 	add hl, de
-.d_right	add hl, de
-
+.d_down
+	add hl, de
+.d_up
+	add hl, de
+.d_left
+	add hl, de
+.d_right
+	add hl, de
 .update
 	ld a, [hli]
 	ld [wWalkingDirection], a

engine/overworld/player_object.asm

@@ -124,7 +124,7 @@ RefreshPlayerCoords:
 	ld e, a
 ; the next three lines are useless
 	ld a, [wObjectFollow_Leader]
-	cp $0
+	cp PLAYER
 	ret nz
 	ret
 

gfx/sgb/pal_packets.asm

@@ -20,7 +20,7 @@ PalPacket_GSTitleScreen:
 	sgb_pal_set GS_TITLE_SCREEN_0, GS_TITLE_SCREEN_1, GS_TITLE_SCREEN_2, GS_TITLE_SCREEN_3
 
 PalPacket_MagnetTrain:
-	sgb_pal_set BETA_SHINY_GREENMON, CGB_BADGE, RB_BROWNMON, 00
+	sgb_pal_set BETA_SHINY_GREENMON, CGB_BADGE, RB_BROWNMON, ROUTES
 
 PalPacket_BetaPoker:
 	sgb_pal_set BETA_POKER_0, BETA_POKER_1, BETA_POKER_2, BETA_POKER_3
@@ -29,28 +29,28 @@ PalPacket_UnownPuzzle:
 	sgb_pal_set UNOWN_PUZZLE, UNOWN_PUZZLE, UNOWN_PUZZLE, UNOWN_PUZZLE
 
 PalPacket_9bd6:
-	sgb_pal_set 00, 00, 00, 00
+	sgb_pal_set ROUTES, ROUTES, ROUTES, ROUTES
 
 PalPacket_GSIntroShellderLapras:
-	sgb_pal_set GS_INTRO_SHELLDER_LAPRAS, 00, 00, 00
+	sgb_pal_set GS_INTRO_SHELLDER_LAPRAS, ROUTES, ROUTES, ROUTES
 
 UnreferencedPalPacket_BetaIntroLapras:
-	sgb_pal_set BETA_INTRO_LAPRAS, 00, 00, 00
+	sgb_pal_set BETA_INTRO_LAPRAS, ROUTES, ROUTES, ROUTES
 
 PalPacket_GSIntroJigglypuffPikachu:
-	sgb_pal_set GS_INTRO_JIGGLYPUFF_PIKACHU_BG, GS_INTRO_JIGGLYPUFF_PIKACHU_OB, 00, 00
+	sgb_pal_set GS_INTRO_JIGGLYPUFF_PIKACHU_BG, GS_INTRO_JIGGLYPUFF_PIKACHU_OB, ROUTES, ROUTES
 
 PalPacket_GSIntroStartersTransition:
-	sgb_pal_set GS_INTRO_STARTERS_TRANSITION, 00, 00, 00
+	sgb_pal_set GS_INTRO_STARTERS_TRANSITION, ROUTES, ROUTES, ROUTES
 
 PalPacket_BetaIntroVenusaur:
-	sgb_pal_set BETA_INTRO_VENUSAUR, 00, 00, 00
+	sgb_pal_set BETA_INTRO_VENUSAUR, ROUTES, ROUTES, ROUTES
 
 PalPacket_Pack:
-	sgb_pal_set PACK, 00, 00, 00
+	sgb_pal_set PACK, ROUTES, ROUTES, ROUTES
 
 PalPacket_BetaPikachuMinigame:
-	sgb_pal_set GS_INTRO_JIGGLYPUFF_PIKACHU_OB, 00, 00, 00
+	sgb_pal_set GS_INTRO_JIGGLYPUFF_PIKACHU_OB, ROUTES, ROUTES, ROUTES
 
 PalPacket_PartyMenu:
 	sgb_pal_set PARTY_ICON, HP_GREEN, HP_YELLOW, HP_RED
@@ -59,10 +59,10 @@ PalPacket_BattleGrayscale:
 	sgb_pal_set BLACKOUT, BLACKOUT, BLACKOUT, BLACKOUT
 
 PalPacket_Pokegear:
-	sgb_pal_set POKEGEAR, 00, 00, 00
+	sgb_pal_set POKEGEAR, ROUTES, ROUTES, ROUTES
 
 UnreferencedPalPacket_9c86:
-	sgb_pal_set PACK, 00, 00, 00
+	sgb_pal_set PACK, ROUTES, ROUTES, ROUTES
 
 PalPacket_SlotMachine:
 	sgb_pal_set SLOT_MACHINE_0, SLOT_MACHINE_1, SLOT_MACHINE_2, SLOT_MACHINE_3
@@ -71,13 +71,13 @@ PalPacket_BetaTitleScreen:
 	sgb_pal_set BETA_LOGO_1, BETA_LOGO_2, DIPLOMA, RB_PURPLEMON
 
 PalPacket_Diploma:
-	sgb_pal_set DIPLOMA, 00, 00, 00
+	sgb_pal_set DIPLOMA, ROUTES, ROUTES, ROUTES
 
 PalPacket_TradeTube:
-	sgb_pal_set TRADE_TUBE, 00, 00, 00
+	sgb_pal_set TRADE_TUBE, ROUTES, ROUTES, ROUTES
 
 PalPacket_GamefreakLogo:
-	sgb_pal_set GS_INTRO_GAMEFREAK_LOGO, 00, 00, 00
+	sgb_pal_set GS_INTRO_GAMEFREAK_LOGO, ROUTES, ROUTES, ROUTES
 
 PalPacket_9ce6:
 	sgb_pal01