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https://github.com/thornAvery/kep-hack.git
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Commented/labelled misc functions
This commit is contained in:
YamaArashi
parent
0c916aea33
commit
2ed65d9c3e
114 changed files with 733 additions and 668 deletions
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@ -61,11 +61,11 @@ rLCDC_DEFAULT EQU %11100011
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ld a, Bank(WriteDMACodeToHRAM)
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ld [H_LOADEDROMBANK], a
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ld [MBC3RomBank], a
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ld [MBC1RomBank], a
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call WriteDMACodeToHRAM
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xor a
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ld [$ffd7], a
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ld [hTilesetType], a
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ld [$ff41], a
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ld [$ffae], a
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ld [$ffaf], a
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@ -10,7 +10,7 @@ EnterMap::
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ld a, $ff
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ld [wJoyIgnore], a
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call LoadMapData
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callba Func_c335 ; initialize map variables
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callba ClearVariablesAfterLoadingMapData
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ld hl, wd72c
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bit 0, [hl] ; has the player already made 3 steps since the last battle?
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jr z, .skipGivingThreeStepsOfNoRandomBattles
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@ -20,14 +20,14 @@ EnterMap::
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ld hl, wd72e
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bit 5, [hl] ; did a battle happen immediately before this?
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res 5, [hl] ; unset the "battle just happened" flag
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call z, Func_12e7
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call z, ResetUsingStrengthOutOfBattleBit
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call nz, MapEntryAfterBattle
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ld hl, wd732
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ld a, [hl]
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and 1 << 4 | 1 << 3 ; fly warp or dungeon warp
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jr z, .didNotEnterUsingFlyWarpOrDungeonWarp
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res 3, [hl]
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callba EnterMapAnim ; display fly/teleport in graphical effect
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callba EnterMapAnim
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call UpdateSprites
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.didNotEnterUsingFlyWarpOrDungeonWarp
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callba CheckForceBikeOrSurf ; handle currents in SF islands and forced bike riding in cycling road
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@ -53,7 +53,7 @@ OverworldLoopLessDelay::
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jp nz,.moveAhead ; if the player sprite has not yet completed the walking animation
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call JoypadOverworld ; get joypad state (which is possibly simulated)
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callba SafariZoneCheck
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ld a,[wda46]
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ld a,[wSafariZoneGameOver]
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and a
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jp nz,WarpFound2
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ld hl,wd72d
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@ -78,7 +78,7 @@ OverworldLoopLessDelay::
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jr z,.startButtonNotPressed
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; if START is pressed
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xor a
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ld [$ff8c],a ; the $2920 ID for the start menu is 0
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ld [hSpriteIndexOrTextID],a ; start menu text ID
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jp .displayDialogue
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.startButtonNotPressed
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bit 0,a ; A button
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@ -87,14 +87,14 @@ OverworldLoopLessDelay::
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ld a,[wd730]
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bit 2,a
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jp nz,.noDirectionButtonsPressed
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call Func_30fd
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call IsPlayerCharacterBeingControlledByGame
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jr nz,.checkForOpponent
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call Func_3eb5 ; check for hidden items, PC's, etc.
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call CheckForHiddenObjectOrBookshelfOrCardKeyDoor
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ld a,[$ffeb]
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and a
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jp z,OverworldLoop
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call IsSpriteOrSignInFrontOfPlayer ; check for sign or sprite in front of the player
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ld a,[$ff8c] ; $2920 ID for NPC/sign text, if any
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jp z,OverworldLoop ; jump if a hidden object or bookshelf was found, but not if a card key door was found
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call IsSpriteOrSignInFrontOfPlayer
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ld a,[hSpriteIndexOrTextID]
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and a
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jp z,OverworldLoop
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.displayDialogue
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@ -293,7 +293,7 @@ OverworldLoopLessDelay::
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bit 7,a ; in the safari zone?
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jr z,.notSafariZone
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callba SafariZoneCheckSteps
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ld a,[wda46]
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ld a,[wSafariZoneGameOver]
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and a
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jp nz,WarpFound2
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.notSafariZone
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@ -350,8 +350,8 @@ NewBattle:: ; 0683 (0:0683)
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ld a,[wd72d]
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bit 4,a
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jr nz,.noBattle
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call Func_30fd
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jr nz,.noBattle
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call IsPlayerCharacterBeingControlledByGame
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jr nz,.noBattle ; no battle if the player character is under the game's control
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ld a,[wd72e]
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bit 4,a
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jr nz,.noBattle
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@ -523,7 +523,7 @@ WarpFound2:: ; 073c (0:073c)
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.done
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ld hl,wd736
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set 0,[hl] ; have the player's sprite step out from the door (if there is one)
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call Func_12da
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call IgnoreInputForHalfSecond
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jp EnterMap
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ContinueCheckWarpsNoCollisionLoop:: ; 07b5 (0:07b5)
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@ -747,7 +747,7 @@ HandleBlackOut::
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res 5, [hl]
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ld a, Bank(ResetStatusAndHalveMoneyOnBlackout) ; also Bank(SpecialWarpIn) and Bank(SpecialEnterMap)
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ld [H_LOADEDROMBANK], a
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ld [MBC3RomBank], a
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ld [MBC1RomBank], a
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call ResetStatusAndHalveMoneyOnBlackout
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call SpecialWarpIn
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call Func_2312
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@ -798,7 +798,7 @@ LoadPlayerSpriteGraphics::
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dec a
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jr z, .ridingBike
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ld a, [$ffd7]
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ld a, [hTilesetType]
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and a
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jr nz, .determineGraphics
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jr .startWalking
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@ -1058,11 +1058,11 @@ LoadEastWestConnectionsTileMap:: ; 0b02 (0:0b02)
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ret
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; function to check if there is a sign or sprite in front of the player
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; if so, it is stored in [$FF8C]
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; if not, [$FF8C] is set to 0
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; if so, it is stored in [hSpriteIndexOrTextID]
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; if not, [hSpriteIndexOrTextID] is set to 0
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IsSpriteOrSignInFrontOfPlayer:: ; 0b23 (0:0b23)
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xor a
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ld [$ff8c],a
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ld [hSpriteIndexOrTextID],a
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ld a,[wd4b0] ; number of signs in the map
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and a
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jr z,.extendRangeOverCounter
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@ -1092,7 +1092,7 @@ IsSpriteOrSignInFrontOfPlayer:: ; 0b23 (0:0b23)
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dec c
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add hl,bc
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ld a,[hl]
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ld [$ff8c],a ; store sign text ID
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ld [hSpriteIndexOrTextID],a ; store sign text ID
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pop bc
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pop hl
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ret
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@ -1113,7 +1113,7 @@ IsSpriteOrSignInFrontOfPlayer:: ; 0b23 (0:0b23)
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jr nz,.counterTilesLoop
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; part of the above function, but sometimes its called on its own, when signs are irrelevant
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; the caller must zero [$FF8C]
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; the caller must zero [hSpriteIndexOrTextID]
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IsSpriteInFrontOfPlayer:: ; 0b6b (0:0b6b)
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ld d,$10 ; talking range in pixels (normal range)
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IsSpriteInFrontOfPlayer2:: ; 0b6d (0:0b6d)
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@ -1195,7 +1195,7 @@ IsSpriteInFrontOfPlayer2:: ; 0b6d (0:0b6d)
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ld l,a
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set 7,[hl]
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ld a,e
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ld [$ff8c],a ; store sprite ID
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ld [hSpriteIndexOrTextID],a
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ret
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; function to check if the player will jump down a ledge and check if the tile ahead is passable (when not surfing)
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@ -1214,9 +1214,9 @@ CollisionCheckOnLand:: ; 0bd1 (0:0bd1)
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and d ; check if a sprite is in the direction the player is trying to go
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jr nz,.collision
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xor a
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ld [$ff8c],a
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ld [hSpriteIndexOrTextID],a
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call IsSpriteInFrontOfPlayer ; check for sprite collisions again? when does the above check fail to detect a sprite collision?
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ld a,[$ff8c]
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ld a,[hSpriteIndexOrTextID]
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and a ; was there a sprite collision?
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jr nz,.collision
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; if no sprite collision
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@ -1467,7 +1467,7 @@ AdvancePlayerSprite:: ; 0d27 (0:0d27)
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cp a,$01
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jr nz,.checkIfMovingWest
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; moving east
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ld a,[wd526]
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ld a,[wMapViewVRAMPointer]
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ld e,a
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and a,$e0
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ld d,a
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@ -1475,13 +1475,13 @@ AdvancePlayerSprite:: ; 0d27 (0:0d27)
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add a,$02
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and a,$1f
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or d
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ld [wd526],a
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ld [wMapViewVRAMPointer],a
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jr .adjustXCoordWithinBlock
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.checkIfMovingWest
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cp a,$ff
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jr nz,.checkIfMovingSouth
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; moving west
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ld a,[wd526]
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ld a,[wMapViewVRAMPointer]
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ld e,a
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and a,$e0
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ld d,a
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@ -1489,36 +1489,36 @@ AdvancePlayerSprite:: ; 0d27 (0:0d27)
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sub a,$02
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and a,$1f
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or d
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ld [wd526],a
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ld [wMapViewVRAMPointer],a
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jr .adjustXCoordWithinBlock
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.checkIfMovingSouth
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ld a,b
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cp a,$01
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jr nz,.checkIfMovingNorth
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; moving south
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ld a,[wd526]
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ld a,[wMapViewVRAMPointer]
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add a,$40
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ld [wd526],a
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ld [wMapViewVRAMPointer],a
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jr nc,.adjustXCoordWithinBlock
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ld a,[wd527]
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ld a,[wMapViewVRAMPointer + 1]
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inc a
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and a,$03
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or a,$98
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ld [wd527],a
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ld [wMapViewVRAMPointer + 1],a
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jr .adjustXCoordWithinBlock
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.checkIfMovingNorth
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cp a,$ff
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jr nz,.adjustXCoordWithinBlock
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; moving north
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ld a,[wd526]
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ld a,[wMapViewVRAMPointer]
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sub a,$40
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ld [wd526],a
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ld [wMapViewVRAMPointer],a
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jr nc,.adjustXCoordWithinBlock
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ld a,[wd527]
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ld a,[wMapViewVRAMPointer + 1]
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dec a
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and a,$03
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or a,$98
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ld [wd527],a
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ld [wMapViewVRAMPointer + 1],a
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.adjustXCoordWithinBlock
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ld a,c
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and a
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@ -1694,18 +1694,18 @@ MoveTileBlockMapPointerNorth:: ; 0e85 (0:0e85)
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ScheduleNorthRowRedraw:: ; 0e91 (0:0e91)
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hlCoord 0, 0
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call ScheduleRowRedrawHelper
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ld a,[wd526]
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call CopyToScreenEdgeTiles
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ld a,[wMapViewVRAMPointer]
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ld [H_SCREENEDGEREDRAWADDR],a
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ld a,[wd527]
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ld a,[wMapViewVRAMPointer + 1]
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ld [H_SCREENEDGEREDRAWADDR + 1],a
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ld a,REDRAWROW
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ld [H_SCREENEDGEREDRAW],a
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ret
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ScheduleRowRedrawHelper:: ; 0ea6 (0:0ea6)
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CopyToScreenEdgeTiles:: ; 0ea6 (0:0ea6)
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ld de,wScreenEdgeTiles
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ld c,$28
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ld c,2 * 20
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.loop
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ld a,[hli]
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ld [de],a
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@ -1716,10 +1716,10 @@ ScheduleRowRedrawHelper:: ; 0ea6 (0:0ea6)
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ScheduleSouthRowRedraw:: ; 0eb2 (0:0eb2)
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hlCoord 0, 16
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call ScheduleRowRedrawHelper
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ld a,[wd526]
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call CopyToScreenEdgeTiles
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ld a,[wMapViewVRAMPointer]
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ld l,a
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ld a,[wd527]
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ld a,[wMapViewVRAMPointer + 1]
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ld h,a
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ld bc,$0200
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add hl,bc
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@ -1736,7 +1736,7 @@ ScheduleSouthRowRedraw:: ; 0eb2 (0:0eb2)
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ScheduleEastColumnRedraw:: ; 0ed3 (0:0ed3)
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hlCoord 18, 0
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call ScheduleColumnRedrawHelper
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ld a,[wd526]
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ld a,[wMapViewVRAMPointer]
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ld c,a
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and a,$e0
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ld b,a
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@ -1745,7 +1745,7 @@ ScheduleEastColumnRedraw:: ; 0ed3 (0:0ed3)
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and a,$1f
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or b
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ld [H_SCREENEDGEREDRAWADDR],a
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ld a,[wd527]
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ld a,[wMapViewVRAMPointer + 1]
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ld [H_SCREENEDGEREDRAWADDR + 1],a
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ld a,REDRAWCOL
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ld [H_SCREENEDGEREDRAW],a
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@ -1774,9 +1774,9 @@ ScheduleColumnRedrawHelper:: ; 0ef2 (0:0ef2)
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ScheduleWestColumnRedraw:: ; 0f08 (0:0f08)
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hlCoord 0, 0
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call ScheduleColumnRedrawHelper
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ld a,[wd526]
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ld a,[wMapViewVRAMPointer]
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ld [H_SCREENEDGEREDRAWADDR],a
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ld a,[wd527]
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ld a,[wMapViewVRAMPointer + 1]
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ld [H_SCREENEDGEREDRAWADDR + 1],a
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ld a,REDRAWCOL
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ld [H_SCREENEDGEREDRAW],a
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@ -2013,7 +2013,7 @@ LoadPlayerSpriteGraphicsCommon:: ; 1063 (0:1063)
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; function to load data from the map header
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LoadMapHeader:: ; 107c (0:107c)
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callba Func_f113
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callba MarkTownVisitedAndLoadMissableObjects
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ld a,[W_CURMAPTILESET]
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ld [wd119],a
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ld a,[W_CURMAP]
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@ -2307,9 +2307,9 @@ LoadMapData:: ; 1241 (0:1241)
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push af
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call DisableLCD
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ld a,$98
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ld [wd527],a
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ld [wMapViewVRAMPointer + 1],a
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xor a
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ld [wd526],a
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ld [wMapViewVRAMPointer],a
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ld [$ffaf],a
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ld [$ffae],a
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ld [wWalkCounter],a
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@ -2383,16 +2383,16 @@ SwitchToMapRomBank:: ; 12bc (0:12bc)
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pop hl
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ret
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Func_12da:: ; 12da (0:12da)
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ld a, $1e
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ld [wd13a], a
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IgnoreInputForHalfSecond: ; 12da (0:12da)
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ld a, 30
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ld [wIgnoreInputCounter], a
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ld hl, wd730
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ld a, [hl]
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or $26
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ld [hl], a
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ld [hl], a ; set ignore input bit
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ret
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Func_12e7:: ; 12e7 (0:12e7)
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ResetUsingStrengthOutOfBattleBit: ; 12e7 (0:12e7)
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ld hl, wd728
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res 0, [hl]
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ret
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@ -29,7 +29,7 @@ VBlank::
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call $ff80 ; hOAMDMA
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ld a, Bank(PrepareOAMData)
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ld [H_LOADEDROMBANK], a
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ld [MBC3RomBank], a
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ld [MBC1RomBank], a
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call PrepareOAMData
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; VBlank-sensitive operations end.
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@ -54,7 +54,7 @@ VBlank::
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ld a, [wc0ef] ; music ROM bank
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ld [H_LOADEDROMBANK], a
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ld [MBC3RomBank], a
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ld [MBC1RomBank], a
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cp BANK(Music2_UpdateMusic)
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jr nz, .notbank2
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@ -72,7 +72,7 @@ VBlank::
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call Music1f_UpdateMusic
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.afterMusic
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callba Func_18dee ; keep track of time played
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callba TrackPlayTime ; keep track of time played
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ld a, [$fff9]
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and a
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@ -80,7 +80,7 @@ VBlank::
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ld a, [wd122]
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ld [H_LOADEDROMBANK], a
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ld [MBC3RomBank], a
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ld [MBC1RomBank], a
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pop hl
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pop de
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@ -376,9 +376,9 @@ UpdateMovingBgTiles::
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; Animate water and flower
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; tiles in the overworld.
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ld a, [$ffd7]
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ld a, [hTilesetType]
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and a
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ret z
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ret z ; no animations if indoors (or if a menu set this to 0)
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ld a, [$ffd8]
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inc a
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@ -412,9 +412,10 @@ UpdateMovingBgTiles::
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dec c
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jr nz, .left
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.done
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ld a, [$ffd7]
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ld a, [hTilesetType]
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rrca
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ret nc
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; if in a cave, no flower animations
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xor a
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ld [$ffd8], a
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ret
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