Label billboard tile illumination states

engine/pinball_game/catchem_mode.asm

@@ -64,7 +64,7 @@ StartCatchEmMode: ; 0x1003f
 	ld [wd5c2], a
 	ld a, [hli]
 	ld [wd5c3], a ;load the 3 bytes into ????
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	ld a, [wd5b6]
 	ld c, a
 	and a
@@ -210,7 +210,7 @@ Func_10184: ; 0x10184
 	ld a, [hli]
 	ld [$ff91], a
 	ld de, wc000
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	ld c, $0
 .asm_101bb
 	ld a, [hli]
@@ -892,7 +892,7 @@ Func_10648: ; 0x10648
 	jr nz, .asm_10677
 	ld a, $14
 	ld [wd54e], a
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	ld b, $18
 .asm_1065e
 	ld a, [wd54f]

engine/pinball_game/catchem_mode/catchem_mode_blue_field.asm

@@ -237,7 +237,7 @@ Func_204f1: ; 0x204f1
 	sla a
 	ld c, a
 	ld b, $0
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	add hl, bc
 	ld d, $4
 .asm_20503

engine/pinball_game/catchem_mode/catchem_mode_red_field.asm

@@ -235,7 +235,7 @@ Func_20230: ; 0x20230
 	sla a
 	ld c, a
 	ld b, $0
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	add hl, bc
 	ld d, $4
 .asm_20242

engine/pinball_game/evolution_mode.asm

@@ -377,7 +377,7 @@ SelectPokemonToEvolve: ; 0x10cb7
 	ret
 
 InitEvolutionModeForMon: ; 0x10d1d
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	ld b, $18
 .asm_10d22
 	ld a, $1

engine/pinball_game/load_stage_data/load_blue_field.asm

@@ -299,7 +299,7 @@ Func_1c3c3: ; 0x1c3c3
 	ret
 
 Func_1c3ca: ; 0x1c3ca
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	ld b, $18
 .asm_1c3cf
 	ld a, [hli]

engine/pinball_game/load_stage_data/load_red_field.asm

@@ -248,7 +248,7 @@ Func_14209: ; 0x14209
 	ret
 
 Func_14210: ; 0x14210
-	ld hl, wd586
+	ld hl, wBillboardTilesIlluminationStates
 	ld b, $18
 .asm_14215
 	ld a, [hli]

wram.asm

@@ -716,8 +716,17 @@ wTimerDigits:: ; 0xd582
 ; fourth byte = unused, but still written to
 	ds $4
 
-wd586:: ; 0xd586
-	ds $30
+wBillboardTilesIlluminationStates:: ; 0xd586
+; This array holds the illuminated state for each of the 24 tiles in a pokemon's billboard picture.
+; During Catch'Em mode, the billboard picture starts with all tiles being "dark", and they light up
+; as the Shellder or Voltorb are hit.
+;
+; If the tile is lit up, the value is $01, and $00 when dark.
+;
+; Each entry in this array is 2 bytes.
+; Byte 1 = Current illumination state
+; Bytes 2 = Previous illumination state. This is used to avoid re-loading the same graphics.
+	ds $18 * 2
 
 wd5b6:: ; 0xd5b6 a 24 wide block starts here and is filled before catch mode
 	ds $5