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-rwxr-xr-xengine/overworld/card_key.asm10
-rwxr-xr-xengine/overworld/cut.asm10
-rwxr-xr-xengine/overworld/hidden_items.asm2
-rwxr-xr-xengine/overworld/hidden_objects.asm14
-rw-r--r--engine/overworld/is_player_just_outside_map.asm8
-rw-r--r--engine/overworld/item.asm12
-rwxr-xr-xengine/overworld/map_sprites.asm20
-rw-r--r--engine/overworld/movement.asm479
-rwxr-xr-xengine/overworld/npc_movement.asm4
-rw-r--r--engine/overworld/oam.asm2
-rwxr-xr-xengine/overworld/pewter_guys.asm4
-rwxr-xr-xengine/overworld/trainers.asm2
12 files changed, 376 insertions, 191 deletions
diff --git a/engine/overworld/card_key.asm b/engine/overworld/card_key.asm
index cc9fe3a7..2ef7529c 100755
--- a/engine/overworld/card_key.asm
+++ b/engine/overworld/card_key.asm
@@ -1,6 +1,6 @@
PrintCardKeyText: ; 52673 (14:6673)
ld hl, SilphCoMapList
- ld a, [W_CURMAP]
+ ld a, [wCurMap]
ld b, a
.silphCoMapListLoop
ld a, [hli]
@@ -15,7 +15,7 @@ PrintCardKeyText: ; 52673 (14:6673)
cp $24
jr z, .cardKeyDoorInFrontOfPlayer
ld b, a
- ld a, [W_CURMAP]
+ ld a, [wCurMap]
cp SILPH_CO_11F
ret nz
ld a, b
@@ -39,7 +39,7 @@ PrintCardKeyText: ; 52673 (14:6673)
ld a, e
ld c, a
ld [wCardKeyDoorX], a
- ld a, [W_CURMAP]
+ ld a, [wCurMap]
cp SILPH_CO_11F
jr nz, .notSilphCo11F
ld a, $3
@@ -84,9 +84,9 @@ CardKeyFailText: ; 526f8 (14:66f8)
; d = Y
; e = X
GetCoordsInFrontOfPlayer: ; 526fd (14:66fd)
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
ld d, a
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
ld e, a
ld a, [wSpriteStateData1 + 9] ; player's sprite facing direction
and a
diff --git a/engine/overworld/cut.asm b/engine/overworld/cut.asm
index 8c863bf2..3a2b38cf 100755
--- a/engine/overworld/cut.asm
+++ b/engine/overworld/cut.asm
@@ -178,7 +178,7 @@ ReplaceTreeTileBlock: ; ef1f (3:6f1f)
; player (i.e. where the tree is) and replace it with the corresponding tile
; block that doesn't have the tree.
push de
- ld a, [W_CURMAPWIDTH]
+ ld a, [wCurMapWidth]
add 6
ld c, a
ld b, 0
@@ -196,22 +196,22 @@ ReplaceTreeTileBlock: ; ef1f (3:6f1f)
cp SPRITE_FACING_LEFT
jr z, .left
; right
- ld a, [W_XBLOCKCOORD]
+ ld a, [wXBlockCoord]
and a
jr z, .centerTileBlock
jr .rightOfCenter
.down
- ld a, [W_YBLOCKCOORD]
+ ld a, [wYBlockCoord]
and a
jr z, .centerTileBlock
jr .belowCenter
.up
- ld a, [W_YBLOCKCOORD]
+ ld a, [wYBlockCoord]
and a
jr z, .aboveCenter
jr .centerTileBlock
.left
- ld a, [W_XBLOCKCOORD]
+ ld a, [wXBlockCoord]
and a
jr z, .leftOfCenter
jr .centerTileBlock
diff --git a/engine/overworld/hidden_items.asm b/engine/overworld/hidden_items.asm
index 28528116..f7f81070 100755
--- a/engine/overworld/hidden_items.asm
+++ b/engine/overworld/hidden_items.asm
@@ -135,7 +135,7 @@ FindHiddenItemOrCoinsIndex: ; 76857 (1d:6857)
ld d, a
ld a, [wHiddenObjectX]
ld e, a
- ld a, [W_CURMAP]
+ ld a, [wCurMap]
ld b, a
ld c, -1
.loop
diff --git a/engine/overworld/hidden_objects.asm b/engine/overworld/hidden_objects.asm
index cabfc093..1fc20e5c 100755
--- a/engine/overworld/hidden_objects.asm
+++ b/engine/overworld/hidden_objects.asm
@@ -29,7 +29,7 @@ CheckForHiddenObject: ; 469a0 (11:69a0)
ld b, a
cp $ff
jr z, .noMatch
- ld a, [W_CURMAP]
+ ld a, [wCurMap]
cp b
jr z, .foundMatchingMap
inc de
@@ -95,30 +95,30 @@ CheckIfCoordsInFrontOfPlayerMatch: ; 46a01 (11:6a01)
cp SPRITE_FACING_RIGHT
jr z, .facingRight
; facing down
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
inc a
jr .upDownCommon
.facingUp
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
dec a
.upDownCommon
cp b
jr nz, .didNotMatch
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
cp c
jr nz, .didNotMatch
jr .matched
.facingLeft
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
dec a
jr .leftRightCommon
.facingRight
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
inc a
.leftRightCommon
cp c
jr nz, .didNotMatch
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
cp b
jr nz, .didNotMatch
.matched
diff --git a/engine/overworld/is_player_just_outside_map.asm b/engine/overworld/is_player_just_outside_map.asm
index 24e434b3..e9ba204a 100644
--- a/engine/overworld/is_player_just_outside_map.asm
+++ b/engine/overworld/is_player_just_outside_map.asm
@@ -1,13 +1,13 @@
; returns whether the player is one tile outside the map in Z
IsPlayerJustOutsideMap: ; 128d8 (4:68d8)
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
ld b, a
- ld a, [W_CURMAPHEIGHT]
+ ld a, [wCurMapHeight]
call .compareCoordWithMapDimension
ret z
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
ld b, a
- ld a, [W_CURMAPWIDTH]
+ ld a, [wCurMapWidth]
.compareCoordWithMapDimension
add a
cp b
diff --git a/engine/overworld/item.asm b/engine/overworld/item.asm
index 6fbe823d..f4f46535 100644
--- a/engine/overworld/item.asm
+++ b/engine/overworld/item.asm
@@ -1,9 +1,9 @@
-PickUpItem:
+PickUpItem: ; 4d55 (1:4d55)
call EnableAutoTextBoxDrawing
ld a, [hSpriteIndexOrTextID]
ld b, a
- ld hl, W_MISSABLEOBJECTLIST
+ ld hl, wMissableObjectList
.missableObjectsListLoop
ld a, [hli]
cp $ff
@@ -17,7 +17,7 @@ PickUpItem:
ld a, [hl]
ld [$ffdb], a
- ld hl, W_MAPSPRITEEXTRADATA
+ ld hl, wMapSpriteExtraData
ld a, [hSpriteIndexOrTextID]
dec a
add a
@@ -44,11 +44,11 @@ PickUpItem:
call PrintText
ret
-FoundItemText:
+FoundItemText: ; 4d9a (1:4d9a)
TX_FAR _FoundItemText
db $0B
db "@"
-NoMoreRoomForItemText:
+NoMoreRoomForItemText: ; 4da0 (1:4da0)
TX_FAR _NoMoreRoomForItemText
- db "@"
+ db "@" \ No newline at end of file
diff --git a/engine/overworld/map_sprites.asm b/engine/overworld/map_sprites.asm
index 84d67b36..eb4e2c03 100755
--- a/engine/overworld/map_sprites.asm
+++ b/engine/overworld/map_sprites.asm
@@ -30,12 +30,12 @@ _InitMapSprites: ; 1785b (5:785b)
; InitOutsideMapSprites.
; Loads tile pattern data for sprites into VRAM.
LoadMapSpriteTilePatterns: ; 17871 (5:7871)
- ld a,[W_NUMSPRITES]
+ ld a,[wNumSprites]
and a ; are there any sprites?
jr nz,.spritesExist
ret
.spritesExist
- ld c,a ; c = [W_NUMSPRITES]
+ ld c,a ; c = [wNumSprites]
ld b,$10 ; number of sprite slots
ld hl,wSpriteStateData2 + $0d
xor a
@@ -251,7 +251,7 @@ ReadSpriteSheetData: ; 17971 (5:7971)
; Loads sprite set for outside maps (cities and routes) and sets VRAM slots.
; sets carry if the map is a city or route, unsets carry if not
InitOutsideMapSprites: ; 1797b (5:797b)
- ld a,[W_CURMAP]
+ ld a,[wCurMap]
cp a,REDS_HOUSE_1F ; is the map a city or a route (map ID less than $25)?
ret nc ; if not, return
ld hl,MapSpriteSets
@@ -317,13 +317,13 @@ InitOutsideMapSprites: ; 1797b (5:797b)
ld [hl],a ; $C2XD (sprite picture ID)
dec b
jr nz,.zeroRemainingSlotsLoop
- ld a,[W_NUMSPRITES]
+ ld a,[wNumSprites]
push af ; save number of sprites
ld a,11 ; 11 sprites in sprite set
- ld [W_NUMSPRITES],a
+ ld [wNumSprites],a
call LoadMapSpriteTilePatterns
pop af
- ld [W_NUMSPRITES],a ; restore number of sprites
+ ld [wNumSprites],a ; restore number of sprites
ld hl,wSpriteStateData2 + $1e
ld b,$0f
; The VRAM tile pattern slots that LoadMapSpriteTilePatterns set are in the
@@ -399,10 +399,10 @@ GetSplitMapSpriteSetID: ; 17a1a (5:7a1a)
ld b,a
jr z,.eastWestDivide
.northSouthDivide
- ld a,[W_YCOORD]
+ ld a,[wYCoord]
jr .compareCoord
.eastWestDivide
- ld a,[W_XCOORD]
+ ld a,[wXCoord]
.compareCoord
cp b
jr c,.loadSpriteSetID
@@ -415,7 +415,7 @@ GetSplitMapSpriteSetID: ; 17a1a (5:7a1a)
; Route 20 is a special case because the two map sections have a more complex
; shape instead of the map simply being split horizontally or vertically.
.route20
- ld hl,W_XCOORD
+ ld hl,wXCoord
ld a,[hl]
cp a,$2b
ld a,$01
@@ -430,7 +430,7 @@ GetSplitMapSpriteSetID: ; 17a1a (5:7a1a)
jr nc,.next
ld b,$0d
.next
- ld a,[W_YCOORD]
+ ld a,[wYCoord]
cp b
ld a,$0a
ret c
diff --git a/engine/overworld/movement.asm b/engine/overworld/movement.asm
index be10fd69..dfd1c012 100644
--- a/engine/overworld/movement.asm
+++ b/engine/overworld/movement.asm
@@ -1,4 +1,4 @@
-UpdatePlayerSprite: ; 4e31 (1:4e31)
+UpdatePlayerSprite: ; 4da5 (1:4da5)
ld a, [wSpriteStateData2]
and a
jr z, .checkIfTextBoxInFrontOfSprite
@@ -20,7 +20,13 @@ UpdatePlayerSprite: ; 4e31 (1:4e31)
ld [wSpriteStateData1 + 2], a
ret
.lowerLeftTileIsMapTile
+ ld a, [wUpdateSpritesEnabled]
+ push af
+ ld a, $ff
+ ld [wUpdateSpritesEnabled], a
call DetectCollisionBetweenSprites
+ pop af
+ ld [wUpdateSpritesEnabled], a
ld h, wSpriteStateData1 / $100
ld a, [wWalkCounter]
and a
@@ -46,42 +52,24 @@ UpdatePlayerSprite: ; 4e31 (1:4e31)
jr z, .notMoving
ld a, SPRITE_FACING_RIGHT
jr .next
+.next
+ ld [wSpriteStateData1 + 9], a ; facing direction
+ ld a, [wFontLoaded]
+ bit 0, a
+ jr z, .moving
.notMoving
; zero the animation counters
xor a
ld [wSpriteStateData1 + 7], a
ld [wSpriteStateData1 + 8], a
- jr .calcImageIndex
-.next
- ld [wSpriteStateData1 + 9], a ; facing direction
- ld a, [wFontLoaded]
- bit 0, a
- jr nz, .notMoving
+ call Func_4e32
+ jr .skipSpriteAnim
.moving
ld a, [wd736]
bit 7, a ; is the player sprite spinning due to a spin tile?
jr nz, .skipSpriteAnim
- ld a, [H_CURRENTSPRITEOFFSET]
- add $7
- ld l, a
- ld a, [hl]
- inc a
- ld [hl], a
- cp 4
- jr nz, .calcImageIndex
- xor a
- ld [hl], a
- inc hl
- ld a, [hl]
- inc a
- and $3
- ld [hl], a
-.calcImageIndex
- ld a, [wSpriteStateData1 + 8]
- ld b, a
- ld a, [wSpriteStateData1 + 9]
- add b
- ld [wSpriteStateData1 + 2], a
+ call Func_5274
+ call Func_4e32
.skipSpriteAnim
; If the player is standing on a grass tile, make the player's sprite have
; lower priority than the background so that it's partially obscured by the
@@ -89,7 +77,7 @@ UpdatePlayerSprite: ; 4e31 (1:4e31)
; bit set by later logic.
ld a, [hTilePlayerStandingOn]
ld c, a
- ld a, [W_GRASSTILE]
+ ld a, [wGrassTile]
cp c
ld a, $0
jr nz, .next2
@@ -98,28 +86,25 @@ UpdatePlayerSprite: ; 4e31 (1:4e31)
ld [wSpriteStateData2 + $07], a
ret
-UnusedReadSpriteDataFunction: ; 4ec7 (1:4ec7)
- push bc
- push af
- ld a, [H_CURRENTSPRITEOFFSET]
- ld c, a
- pop af
- add c
- ld l, a
- pop bc
+Func_4e32: ; 4e32 (1:4e32)
+ ld a, [wSpriteStateData1 + 8]
+ ld b, a
+ ld a, [wSpriteStateData1 + 9]
+ add b
+ ld [wSpriteStateData1 + 2], a
ret
-
-UpdateNPCSprite: ; 4ed1 (1:4ed1)
+
+UpdateNPCSprite: ; 4e3e (1:4e3e)
ld a, [H_CURRENTSPRITEOFFSET]
swap a
dec a
add a
- ld hl, W_MAPSPRITEDATA
+ ld hl, wMapSpriteData
add l
ld l, a
ld a, [hl] ; read movement byte 2
ld [wCurSpriteMovement2], a
- ld h, $c1
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
ld l, a
inc l
@@ -128,7 +113,7 @@ UpdateNPCSprite: ; 4ed1 (1:4ed1)
jp z, InitializeSpriteStatus
call CheckSpriteAvailability
ret c ; if sprite is invisible, on tile >=$60, in grass or player is currently walking
- ld h, $c1
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
ld l, a
inc l
@@ -144,19 +129,21 @@ UpdateNPCSprite: ; 4ed1 (1:4ed1)
jp z, UpdateSpriteMovementDelay ; c1x1 == 2
cp $3
jp z, UpdateSpriteInWalkingAnimation ; c1x1 == 3
+ cp $4
+ jp z, Func_5357
ld a, [wWalkCounter]
and a
ret nz ; don't do anything yet if player is currently moving (redundant, already tested in CheckSpriteAvailability)
call InitializeSpriteScreenPosition
- ld h, $c2
+ ld h, wSpriteStateData2 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $6
ld l, a
ld a, [hl] ; c2x6: movement byte 1
inc a
- jr z, .randomMovement ; value $FF
+ jp z, .randomMovement ; value $FF
inc a
- jr z, .randomMovement ; value $FE
+ jp z, .randomMovement ; value $FE
; scripted movement
dec a
ld [hl], a ; increment movement byte 1 (movement data index)
@@ -181,12 +168,18 @@ UpdateNPCSprite: ; 4ed1 (1:4ed1)
ret
.next
cp $fe
- jr nz, .determineDirection
+ jr nz, .asm_4ecb
; current NPC movement data is $fe. this seems buggy
ld [hl], $1 ; set movement byte 1 to $1
ld de, wNPCMovementDirections
call LoadDEPlusA ; a = [wNPCMovementDirections + $fe] (?)
- jr .determineDirection
+.asm_4ecb
+ push af
+ call Func_5288
+ pop bc
+ ld a, b
+ jr nc, .determineDirection
+ ret
.randomMovement
call GetTileSpriteStandsOn
call Random
@@ -249,7 +242,7 @@ UpdateNPCSprite: ; 4ed1 (1:4ed1)
jr TryWalking
; changes facing direction by zeroing the movement delta and calling TryWalking
-ChangeFacingDirection: ; 4fc8 (1:4fc8)
+ChangeFacingDirection: ; 4f43 (1:4f43)
ld de, $0
; fall through
@@ -259,61 +252,27 @@ ChangeFacingDirection: ; 4fc8 (1:4fc8)
; e: X movement delta (-1, 0 or 1)
; hl: pointer to tile the sprite would walk onto
; set carry on failure, clears carry on success
-TryWalking: ; 4fcb (1:4fcb)
+TryWalking: ; 4f46 (1:4f46)
push hl
- ld h, $c1
- ld a, [H_CURRENTSPRITEOFFSET]
- add $9
- ld l, a
- ld [hl], c ; c1x9 (update facing direction)
- ld a, [H_CURRENTSPRITEOFFSET]
- add $3
- ld l, a
- ld [hl], d ; c1x3 (update Y movement delta)
- inc l
- inc l
- ld [hl], e ; c1x5 (update X movement delta)
+ call Func_5337
pop hl
push de
- ld c, [hl] ; read tile to walk onto
+ ld c, [hl]
call CanWalkOntoTile
pop de
- ret c ; cannot walk there (reinitialization of delay values already done)
- ld h, $c2
+ ret c
+ call Func_5349
ld a, [H_CURRENTSPRITEOFFSET]
- add $4
ld l, a
- ld a, [hl] ; c2x4: Y position
- add d
- ld [hli], a ; update Y position
- ld a, [hl] ; c2x5: X position
- add e
- ld [hl], a ; update X position
- ld a, [H_CURRENTSPRITEOFFSET]
- ld l, a
- ld [hl], $10 ; c2x0=16: walk animation counter
+ ld [hl], $10 ; c1x9 (update facing direction)
dec h
inc l
- ld [hl], $3 ; c1x1: set movement status to walking
+ ld [hl], $3
jp UpdateSpriteImage
; update the walking animation parameters for a sprite that is currently walking
-UpdateSpriteInWalkingAnimation: ; 4ffe (1:4ffe)
- ld a, [H_CURRENTSPRITEOFFSET]
- add $7
- ld l, a
- ld a, [hl] ; c1x7 (counter until next walk animation frame)
- inc a
- ld [hl], a ; c1x7 += 1
- cp $4
- jr nz, .noNextAnimationFrame
- xor a
- ld [hl], a ; c1x7 = 0
- inc l
- ld a, [hl] ; c1x8 (walk animation frame)
- inc a
- and $3
- ld [hl], a ; advance to next animation frame every 4 ticks (16 ticks total for one step)
+UpdateSpriteInWalkingAnimation: ; 4f61 (1:4f61)
+ call Func_5274
.noNextAnimationFrame
ld a, [H_CURRENTSPRITEOFFSET]
add $3
@@ -371,7 +330,7 @@ UpdateSpriteInWalkingAnimation: ; 4ffe (1:4ffe)
ret
; update delay value (c2x8) for sprites in the delayed state (c1x1)
-UpdateSpriteMovementDelay: ; 5057 (1:5057)
+UpdateSpriteMovementDelay: ; 4fa9 (1:4fa9)
ld h, $c2
ld a, [H_CURRENTSPRITEOFFSET]
add $6
@@ -392,15 +351,15 @@ UpdateSpriteMovementDelay: ; 5057 (1:5057)
inc a
ld l, a
ld [hl], $1 ; c1x1 = 1 (mark as ready to move)
-notYetMoving: ; 5073 (1:5073)
- ld h, $c1
+notYetMoving: ; 4fc5 (1:4fc5)
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $8
ld l, a
ld [hl], $0 ; c1x8 = 0 (walk animation frame)
jp UpdateSpriteImage
-InitializeSpriteFacingDirection: ; 507f (1:507f)
+InitializeSpriteFacingDirection: ; 4fd1 (1:4fd1)
ld a, [wd72d]
bit 5, a
jr nz, notYetMoving
@@ -429,7 +388,7 @@ InitializeSpriteFacingDirection: ; 507f (1:507f)
ld [hl], c ; c1x9: set facing direction
jr notYetMoving
-InitializeSpriteStatus: ; 50ad (1:50ad)
+InitializeSpriteStatus: ; 4fff (1:4fff)
ld [hl], $1 ; $c1x1: set movement status to ready
inc l
ld [hl], $ff ; $c1x2: set sprite image to $ff (invisible/off screen)
@@ -440,39 +399,52 @@ InitializeSpriteStatus: ; 50ad (1:50ad)
ld a, $8
ld [hli], a ; $c2x2: set Y displacement to 8
ld [hl], a ; $c2x3: set X displacement to 8
+ call InitializeSpriteScreenPosition ; could have done fallthrough here
ret
; calculates the spprite's scrren position form its map position and the player position
-InitializeSpriteScreenPosition: ; 50bd (1:50bd)
- ld h, $c2
+InitializeSpriteScreenPosition: ; 5012 (1:5012)
+ ld h, wSpriteStateData2 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $4
ld l, a
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
ld b, a
ld a, [hl] ; c2x4 (Y position + 4)
sub b ; relative to player position
- swap a ; * 16
+ call Func_5033
sub $4 ; - 4
dec h
ld [hli], a ; c1x4 (screen Y position)
inc h
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
ld b, a
ld a, [hli] ; c2x6 (X position + 4)
sub b ; relative to player position
- swap a ; * 16
+ call Func_5033
dec h
ld [hl], a ; c1x6 (screen X position)
ret
+Func_5033: ; 5033 (1:5033)
+ jr nc, .asm_503c
+ cpl
+ inc a
+ swap a
+ cpl
+ inc a
+ ret
+.asm_503c
+ swap a
+ ret
+
; tests if sprite is off screen or otherwise unable to do anything
-CheckSpriteAvailability: ; 50dc (1:50dc)
+CheckSpriteAvailability: ; 503f (1:503f)
predef IsObjectHidden
ld a, [$ffe5]
and a
jp nz, .spriteInvisible
- ld h, $c2
+ ld h, wSpriteStateData2 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $6
ld l, a
@@ -483,7 +455,7 @@ CheckSpriteAvailability: ; 50dc (1:50dc)
add $4
ld l, a
ld b, [hl] ; c2x4: Y pos (+4)
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
cp b
jr z, .skipYVisibilityTest
jr nc, .spriteInvisible ; above screen region
@@ -493,7 +465,7 @@ CheckSpriteAvailability: ; 50dc (1:50dc)
.skipYVisibilityTest
inc l
ld b, [hl] ; c2x5: X pos (+4)
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
cp b
jr z, .skipXVisibilityTest
jr nc, .spriteInvisible ; left of screen region
@@ -520,7 +492,7 @@ CheckSpriteAvailability: ; 50dc (1:50dc)
cp d
jr c, .spriteVisible ; standing on tile with ID >=$60 (top right tile)
.spriteInvisible
- ld h, $c1
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $2
ld l, a
@@ -537,7 +509,7 @@ CheckSpriteAvailability: ; 50dc (1:50dc)
ld a, [H_CURRENTSPRITEOFFSET]
add $7
ld l, a
- ld a, [W_GRASSTILE]
+ ld a, [wGrassTile]
cp c
ld a, $0
jr nz, .notInGrass
@@ -548,7 +520,7 @@ CheckSpriteAvailability: ; 50dc (1:50dc)
.done
ret
-UpdateSpriteImage: ; 5157 (1:5157)
+UpdateSpriteImage: ; 50ba (1:50ba)
ld h, $c1
ld a, [H_CURRENTSPRITEOFFSET]
add $8
@@ -573,8 +545,8 @@ UpdateSpriteImage: ; 5157 (1:5157)
; d: Y movement delta (-1, 0 or 1)
; e: X movement delta (-1, 0 or 1)
; set carry on failure, clears carry on success
-CanWalkOntoTile: ; 516e (1:516e)
- ld h, $c2
+CanWalkOntoTile: ; 50d1 (1:50d1)
+ ld h, wSpriteStateData2 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $6
ld l, a
@@ -585,24 +557,16 @@ CanWalkOntoTile: ; 516e (1:516e)
and a
ret
.notScripted
- ld a, [W_TILESETCOLLISIONPTR]
- ld l, a
- ld a, [W_TILESETCOLLISIONPTR+1]
- ld h, a
-.tilePassableLoop
- ld a, [hli]
- cp $ff
- jr z, .impassable
- cp c
- jr nz, .tilePassableLoop
- ld h, $c2
+ call _IsTilePassable
+ jr c, .impassable
+ ld h, wSpriteStateData2 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $6
ld l, a
ld a, [hl] ; $c2x6 (movement byte 1)
inc a
jr z, .impassable ; if $ff, no movement allowed (however, changing direction is)
- ld h, $c1
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $4
ld l, a
@@ -618,17 +582,23 @@ CanWalkOntoTile: ; 516e (1:516e)
jr nc, .impassable ; don't walk off screen
push de
push bc
+ ld a, [wUpdateSpritesEnabled]
+ push af
+ ld a, $ff
+ ld [wUpdateSpritesEnabled], a
call DetectCollisionBetweenSprites
+ pop af
+ ld [wUpdateSpritesEnabled], a
pop bc
pop de
- ld h, $c1
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $c
ld l, a
ld a, [hl] ; c1xc (directions in which sprite collision would occur)
and b ; check against chosen direction (1,2,4 or 8)
jr nz, .impassable ; collision between sprites, don't go there
- ld h, $c2
+ ld h, wSpriteStateData2 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $2
ld l, a
@@ -637,7 +607,7 @@ CanWalkOntoTile: ; 516e (1:516e)
jr nz, .upwards
add d
cp $5
- jr c, .impassable ; if c2x2+d < 5, don't go ;bug: this tests probably were supposed to prevent sprites
+ ;jr c, .impassable (bugfix) ; if c2x2+d < 5, don't go ;bug: this tests probably were supposed to prevent sprites
jr .checkHorizontal ; from walking out too far, but this line makes sprites get stuck
.upwards ; whenever they walked upwards 5 steps
sub $1 ; on the other hand, the amount a sprite can walk out to the
@@ -659,7 +629,7 @@ CanWalkOntoTile: ; 516e (1:516e)
and a ; clear carry (marking success)
ret
.impassable
- ld h, $c1
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
inc a
ld l, a
@@ -684,14 +654,14 @@ CanWalkOntoTile: ; 516e (1:516e)
; calculates the tile pointer pointing to the tile the current sprite stancs on
; this is always the lower left tile of the 2x2 tile blocks all sprites are snapped to
; hl: output pointer
-GetTileSpriteStandsOn: ; 5207 (1:5207)
- ld h, $c1
+GetTileSpriteStandsOn: ; 516a (1:516a)
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
add $4
ld l, a
ld a, [hli] ; c1x4: screen Y position
add $4 ; align to 2*2 tile blocks (Y position is always off 4 pixels to the top)
- and $f0 ; in case object is currently moving
+ and $f8 ; in case object is currently moving (XXX why changed to $f8?)
srl a ; screen Y tile * 4
ld c, a
ld b, $0
@@ -713,7 +683,7 @@ GetTileSpriteStandsOn: ; 5207 (1:5207)
ret
; loads [de+a] into a
-LoadDEPlusA: ; 522f (1:522f)
+LoadDEPlusA: ; 5192 (1:5192)
add e
ld e, a
jr nc, .noCarry
@@ -722,7 +692,7 @@ LoadDEPlusA: ; 522f (1:522f)
ld a, [de]
ret
-DoScriptedNPCMovement: ; 5236 (1:5236)
+DoScriptedNPCMovement: ; 5199 (1:5199)
; This is an alternative method of scripting an NPC's movement and is only used
; a few times in the game. It is used when the NPC and player must walk together
; in sync, such as when the player is following the NPC somewhere. An NPC can't
@@ -793,23 +763,23 @@ DoScriptedNPCMovement: ; 5236 (1:5236)
inc [hl]
ret
-InitScriptedNPCMovement: ; 52a6 (1:52a6)
+InitScriptedNPCMovement: ; 5209 (1:5209)
xor a
ld [wNPCMovementDirections2Index], a
ld a, 8
ld [wScriptedNPCWalkCounter], a
jp AnimScriptedNPCMovement
-GetSpriteScreenYPointer: ; 52b2 (1:52b2)
+GetSpriteScreenYPointer: ; 5215 (1:5215)
ld a, $4
ld b, a
jr GetSpriteScreenXYPointerCommon
-GetSpriteScreenXPointer: ; 52b7 (1:52b7)
+GetSpriteScreenXPointer: ; 521a (1:521a)
ld a, $6
ld b, a
-GetSpriteScreenXYPointerCommon: ; 52ba (1:52ba)
+GetSpriteScreenXYPointerCommon: ; 521d (1:521d)
ld hl, wSpriteStateData1
ld a, [H_CURRENTSPRITEOFFSET]
add l
@@ -817,7 +787,7 @@ GetSpriteScreenXYPointerCommon: ; 52ba (1:52ba)
ld l, a
ret
-AnimScriptedNPCMovement: ; 52c3 (1:52c3)
+AnimScriptedNPCMovement: ; 5226 (1:5226)
ld hl, wSpriteStateData2
ld a, [H_CURRENTSPRITEOFFSET]
add $e
@@ -856,21 +826,236 @@ AnimScriptedNPCMovement: ; 52c3 (1:52c3)
ld [hl], a
ret
-AdvanceScriptedNPCAnimFrameCounter: ; 5301 (1:5301)
+AdvanceScriptedNPCAnimFrameCounter: ; 5264 (1:5264)
+ call Func_5274
+ ld h, wSpriteStateData1 / $100
ld a, [H_CURRENTSPRITEOFFSET]
- add $7
+ add $8
ld l, a
ld a, [hl] ; intra-animation frame counter
+ and $3
+ ld [hSpriteAnimFrameCounter], a
+ ret
+
+Func_5274: ; 5274 (1:5274)
+ ld a, [H_CURRENTSPRITEOFFSET]
+ add $7
+ ld l, a
+ ld h, wSpriteStateData1 / $100
+ ld a, [hl] ; c1x7 (counter until next walk animation frame)
inc a
- ld [hl], a
- cp 4
- ret nz
- xor a
- ld [hl], a ; reset intra-animation frame counter
+ and $3
+ ld [hl], a ; c1x7 += 1
+ ret nz ; c1x7 = 0
inc l
- ld a, [hl] ; animation frame counter
+ ld a, [hl] ; c1x8 (walk animation frame)
inc a
and $3
+ ld [hl], a ; advance to next animation frame every 4 ticks (16 ticks total for one step)
+ ret
+
+Func_5288: ; 5288 (1:5288)
+; nice lookup table
+; a is supposedly [wNPCMovementDirections + $fe]
+ cp $5
+ jr z, .asm_52af
+ cp $4
+ jr z, .asm_52aa
+ cp $6
+ jr z, .asm_52b4
+ cp $7
+ jr z, .asm_52b9
+ cp $11
+ jr z, .asm_52c3
+ cp $12
+ jr z, .asm_52be
+ cp $13
+ jr z, .asm_52c8
+ cp $14
+ jr z, .asm_52cd
+ xor a
+ ret
+; set 1?
+.asm_52aa
+ call Func_531f
+ jr .asm_52e6
+.asm_52af
+ call Func_5325
+ jr .asm_52e6
+.asm_52b4
+ call Func_5331
+ jr .asm_52e6
+.asm_52b9
+ call Func_532b
+ jr .asm_52e6
+; set 2?
+.asm_52be
+ call Func_531f
+ jr .asm_52fa
+.asm_52c3
+ call Func_5325
+ jr .asm_52fa
+.asm_52c8
+ call Func_5331
+ jr .asm_52fa
+.asm_52cd
+ call Func_532b
+ jr .asm_52fa
+; set 3? (unused)
+.asm_52d2
+ call Func_531f
+ jr .asm_530b
+.asm_52d7
+ call Func_5325
+ jr .asm_530b
+.asm_52dc
+ call Func_5331
+ jr .asm_530b
+.asm_52e1
+ call Func_532b
+ jr .asm_530b
+
+.asm_52e6
+ call Func_5337
+ call Func_5349
+ ld a, [H_CURRENTSPRITEOFFSET]
+ ld l, a
+ ld [hl], $8
+ dec h
+ inc l
+ ld [hl], $4
+ call UpdateSpriteImage
+ scf
+ ret
+
+.asm_52fa
+ call Func_5337
+ ld a, [H_CURRENTSPRITEOFFSET]
+ ld l, a
+ ld [hl], $8
+ dec h
+ inc l
+ ld [hl], $3
+ call UpdateSpriteImage
+ scf
+ ret
+
+.asm_530b
+ call Func_5337
+ call Func_5349
+ ld a, [H_CURRENTSPRITEOFFSET]
+ ld l, a
+ ld [hl], $8
+ dec h
+ inc l
+ ld [hl], $3
+ call UpdateSpriteImage
+ scf
+ ret
+
+Func_531f: ; 531f (1:531f)
+ lb de, 1, 0
+ ld c, SPRITE_FACING_DOWN
+ ret
+
+Func_5325: ; 5325 (1:5325)
+ lb de, -1, 0
+ ld c, SPRITE_FACING_UP
+ ret
+
+Func_532b: ; 532b (1:532b)
+ lb de, 0, 1
+ ld c, SPRITE_FACING_RIGHT
+ ret
+
+Func_5331: ; 5331 (1:5331)
+ lb de, 0, -1
+ ld c, SPRITE_FACING_LEFT
+ ret
+
+Func_5337: ; 5337 (1:5337)
+ ld a, [H_CURRENTSPRITEOFFSET]
+ add $9
+ ld l, a
+ ld h, wSpriteStateData1 / $100
+ ld [hl], c ; c1x9 (update facing direction)
+ ld a, [H_CURRENTSPRITEOFFSET]
+ add $3
+ ld l, a
+ ld [hl], d ; c1x3 (update Y movement delta)
+ inc l
+ inc l
+ ld [hl], e ; c1x5 (update X movement delta)
+ ret
+
+Func_5349: ; 5349 (1:5349)
+ ld h, wSpriteStateData2 / $100
+ ld a, [H_CURRENTSPRITEOFFSET]
+ add $4
+ ld l, a
+ ld a, [hl] ; c2x4: Y position
+ add d
+ ld [hli], a ; update Y position
+ ld a, [hl] ; c2x5: X position
+ add e
+ ld [hl], a ; update X position
+ ret
+
+Func_5357: ; 5357 (1:5357)
+ call Func_5274
+ ld a, [H_CURRENTSPRITEOFFSET]
+ add $3
+ ld l, a
+ ld h, wSpriteStateData1 / $100
+ ld a, [hli]
+ add a
+ ld b, a
+ ld a, [hl]
+ add b
+ ld [hli], a
+ ld a, [hli]
+ add a
+ ld b, a
+ ld a, [hl]
+ add b
ld [hl], a
- ld [hSpriteAnimFrameCounter], a
+ ld a, [H_CURRENTSPRITEOFFSET]
+ ld l, a
+ ld h, wSpriteStateData2 / $100
+ dec [hl]
+ ret nz
+ ld a, $6
+ add l
+ ld l, a
+ ld a, [hl]
+ cp $fe
+ jr nc, .asm_5386
+ ld a, [H_CURRENTSPRITEOFFSET]
+ inc a
+ ld l, a
+ ld h, wSpriteStateData1 / $100
+ ld [hl], $1
ret
+.asm_5386
+ call Random
+ ld a, [H_CURRENTSPRITEOFFSET]
+ add $8
+ ld l, a
+ ld h, wSpriteStateData2 / $100
+ ld a, [hRandomAdd]
+ and $7f
+ ld [hl], a
+ dec h
+ ld a, [H_CURRENTSPRITEOFFSET]
+ inc a
+ ld l, a
+ ld [hl], $2
+ inc l
+ inc l
+ xor a
+ ld b, [hl]
+ ld [hli], a
+ inc l
+ ld c, [hl]
+ ld [hl], a
+ ret \ No newline at end of file
diff --git a/engine/overworld/npc_movement.asm b/engine/overworld/npc_movement.asm
index 098be875..a609fb60 100755
--- a/engine/overworld/npc_movement.asm
+++ b/engine/overworld/npc_movement.asm
@@ -52,7 +52,7 @@ PalletMovementScriptPointerTable: ; 1a442 (6:6442)
dw PalletMovementScript_Done
PalletMovementScript_OakMoveLeft: ; 1a44c (6:644c)
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
sub $a
ld [wNumStepsToTake], a
jr z, .playerOnLeftTile
@@ -267,7 +267,7 @@ RLEList_PewterGymGuy: ; 1a5da (6:65da)
db $FF
FreezeEnemyTrainerSprite: ; 1a5e7 (6:65e7)
- ld a, [W_CURMAP]
+ ld a, [wCurMap]
cp POKEMONTOWER_7
ret z ; the Rockets on Pokemon Tower 7F leave after battling, so don't freeze them
ld hl, RivalIDs
diff --git a/engine/overworld/oam.asm b/engine/overworld/oam.asm
index e81375a3..f51c839f 100644
--- a/engine/overworld/oam.asm
+++ b/engine/overworld/oam.asm
@@ -213,7 +213,7 @@ Func_4a7b: ; 4a7b (1:4a7b)
INCLUDE "engine/oam_dma.asm"
_IsTilePassable:: ; 4aaa (1:4aaa)
- ld hl,W_TILESETCOLLISIONPTR ; pointer to list of passable tiles
+ ld hl,wTilesetCollisionPtr ; pointer to list of passable tiles
ld a,[hli]
ld h,[hl]
ld l,a ; hl now points to passable tiles
diff --git a/engine/overworld/pewter_guys.asm b/engine/overworld/pewter_guys.asm
index 4ac60e00..543dac91 100755
--- a/engine/overworld/pewter_guys.asm
+++ b/engine/overworld/pewter_guys.asm
@@ -17,9 +17,9 @@ PewterGuys: ; 37ca1 (d:7ca1)
ld a, [hli]
ld h, [hl]
ld l, a
- ld a, [W_YCOORD]
+ ld a, [wYCoord]
ld b, a
- ld a, [W_XCOORD]
+ ld a, [wXCoord]
ld c, a
.findMatchingCoordsLoop
ld a, [hli]
diff --git a/engine/overworld/trainers.asm b/engine/overworld/trainers.asm
index 7d2ec0dd..66ae20ce 100755
--- a/engine/overworld/trainers.asm
+++ b/engine/overworld/trainers.asm
@@ -291,7 +291,7 @@ CheckSpriteCanSeePlayer: ; 569af (15:69af)
; tests if the player is in front of the sprite (rather than behind it)
CheckPlayerIsInFrontOfSprite: ; 569e3 (15:69e3)
- ld a, [W_CURMAP]
+ ld a, [wCurMap]
cp POWER_PLANT
jp z, .engage ; bypass this for power plant to get voltorb fake items to work
ld a, [wTrainerSpriteOffset]
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 04:05:07 +0000