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|
HandlePinballGame: ; 0xd853
ld a, [wScreenState]
rst JumpTable ; calls JumpToFuncInTable
PinballGameScreenFunctions: ; 0xd857
dw GameScreenFunction_LoadGFX
dw GameScreenFunction_StartBall
dw GameScreenFunction_HandleBallPhysics
dw GameScreenFunction_HandleBallLoss
dw GameScreenFunction_EndBall
GameScreenFunction_LoadGFX: ; 0xd861
xor a
ld [wd908], a
callba InitializeCurrentStage
call FillBottomMessageBufferWithBlackTile
ld a, $1
ld [wAudioEngineEnabled], a
ld [wDrawBottomMessageBox], a
ld hl, wScreenState
inc [hl]
ret
GameScreenFunction_StartBall: ; 0xd87f
ld a, $67
ld [hLCDC], a
ld a, $e4
ld [wBGP], a
ld a, $e1
ld [wOBP0], a
ld a, $e4
ld [wOBP1], a
ld a, [wSCX]
ld [hSCX], a
xor a
ld [hSCY], a
ld a, $7
ld [hWX], a
ld a, $83
ld [hLYC], a
ld [hLastLYC], a
ld a, $ff
ld [hLCDCMask], a
ld hl, hSTAT
set 6, [hl]
ld hl, rIE
set 1, [hl]
ld a, $1
ld [hStatIntrRoutine], a
callba InitBallForStage
callba LoadStageCollisionAttributes
callba LoadStageData
callba ScrollScreenToShowPinball
call ClearOAMBuffer
callba DrawSpritesForStage
ld a, [wUpdateAudioEngineUsingTimerInterrupt]
and a
call nz, ToggleAudioEngineUpdateMethod
ld a, $1
ld [wDrawBottomMessageBox], a
xor a
ld [wLoadingSavedGame], a
call SetAllPalettesWhite
call EnableLCD
call FadeIn
ld hl, wScreenState
inc [hl]
ret
GameScreenFunction_HandleBallPhysics: ; 0xd909
; main loop for stage logic
xor a
ld [wFlipperCollision], a
ld [wCollisionForceAmplification], a
call ApplyGravityToBall
call LimitBallVelocity
xor a
ld [wIsBallColliding], a
call HandleTilts
ld a, [wCurrentStage]
bit 0, a
callba nz, HandleFlippers ; only perform flipper logic on the lower half of stages
ld a, [wFlipperCollision]
and a
ld a, [wCollisionNormalAngle]
push af
call CheckStageCollision
pop af
jr z, .noFlipperCollision
ld [wCollisionNormalAngle], a
.noFlipperCollision
call CheckGameObjectCollisions
call ResolveGameObjectCollisions
ld hl, wKeyConfigMenu
call IsKeyPressed
jr z, .didntPressMenuKey
lb de, $03, $4c
call PlaySoundEffect
callba HandleInGameMenu
jp z, SaveGame
.didntPressMenuKey
ld a, [wIsBallColliding] ; check for collision flag
and a
jr z, .moveBallPosition
call ApplyTiltForces
call LoadBallVelocity ; bc = x velocity, de = y velocity
; First, rotate the velocity vector into a standardized coordinate
; system where the normal angle points upwards.
ld a, [wCollisionNormalAngle]
call RotateVector
; Apply the collision forces to the ball in the rotated coordinate system.
call ApplyCollisionForces
ld a, [wFlipperCollision]
and a
jr z, .noFlipperCollision2
; de -= *wFlipperYForce
ld hl, wFlipperYForce
ld a, [hli]
ld h, [hl]
ld l, a
ld a, e
sub l
ld e, a
ld a, d
sbc h
ld d, a
; bc += *wFlipperXForce
ld hl, wFlipperXForce
ld a, [hli]
ld h, [hl]
ld l, a
ld a, c
add l
ld c, a
ld a, b
adc h
ld b, a
jr .updateBallVelocity
.noFlipperCollision2
ld a, [wNoCollisionApplied]
and a
jr nz, .moveBallPosition
.updateBallVelocity
; Rotate the velocity vector back to the regular coordinate system, and
; set the ball's velocity to the resulting vector.
ld a, [wCollisionNormalAngle]
call NegateAngleAndRotateVector
call SetBallVelocity
.moveBallPosition
call MoveBallPosition
callba CheckStageTransition
callba DrawSpritesForStage
call UpdateBottomText
ld a, [wDisableDrawScoreboardInfo]
and a
jr nz, .skipDrawingScoreboard
callba Func_85c7
callba HideScoreIfBallLow
callba Func_8645
call Func_dba9
call DrawNumPartyMonsIcon
call DrawPikachuSaverLightningBoltIcon
.skipDrawingScoreboard
ld a, [wTimerActive]
and a
callba nz, DecrementTimer
ld a, [wMoveToNextScreenState]
and a
ret z
xor a
ld [wMoveToNextScreenState], a
ld hl, wScreenState
inc [hl]
ret
INCLUDE "engine/pinball_game/save_game.asm"
GameScreenFunction_HandleBallLoss: ; 0xda36
xor a
ld [hJoypadState], a
ld [hNewlyPressedButtons], a
ld [hPressedButtons], a
ld [wFlipperCollision], a
ld [wCollisionForceAmplification], a
xor a
ld [wIsBallColliding], a
ld [wPinballIsVisible], a
ld [wEnableBallGravityAndTilt], a
call HandleTilts
ld a, [wCurrentStage]
bit 0, a
callba nz, HandleFlippers
callba DrawSpritesForStage
call UpdateBottomText
callba Func_85c7
ld a, [wBottomTextEnabled]
and a
ret nz
ld a, [wLostBall]
and a
jr z, .asm_daa9
ld a, [wd49c]
cp $2
jr z, .asm_daa9
call EndOfBallBonus
ld a, [wd49c]
and a
jr z, .asm_daa9
ld a, $2
ld [wd49c], a
ld [wDrawBottomMessageBox], a
call FillBottomMessageBufferWithBlackTile
call EnableBottomText
ld hl, wScrollingText3
ld de, ShootAgainText
call LoadScrollingText
ret
.asm_daa9
xor a
ld [wd49c], a
ld hl, wScreenState
inc [hl]
ret
GameScreenFunction_EndBall: ; 0xdab2
xor a
ld [wRumblePattern], a
ld a, [wGameOver]
and a
jp nz, TransitionToHighScoresScreen
ld a, [wGoingToBonusStage]
and a
jr nz, .goingToBonusStage
ld a, [wReturningFromBonusStage]
and a
jr nz, .returningFromBonusStage
call FadeOut
ld a, [wUpdateAudioEngineUsingTimerInterrupt]
and a
call z, ToggleAudioEngineUpdateMethod
call DisableLCD
ld hl, hSTAT
res 6, [hl]
ld hl, rIE
res 1, [hl]
ld a, $1
ld [wScreenState], a
ret
.goingToBonusStage
ld de, MUSIC_NOTHING
call PlaySong
ld bc, $0004
call AdvanceFrames
call FadeOut
ld a, [wUpdateAudioEngineUsingTimerInterrupt]
and a
call nz, ToggleAudioEngineUpdateMethod
call DisableLCD
ld hl, hSTAT
res 6, [hl]
ld hl, rIE
res 1, [hl]
ld a, [wCurrentStage]
ld [wCurrentStageBackup], a
ld a, [wStageCollisionState]
ld [wStageCollisionStateBackup], a
ld a, [wNextStage]
ld [wCurrentStage], a
xor a
ld [wReturningFromBonusStage], a
ld [wGoingToBonusStage], a
ld a, $0
ld [wScreenState], a
ret
.returningFromBonusStage
ld de, MUSIC_NOTHING
call PlaySong
ld bc, $0004
call AdvanceFrames
call FadeOut
ld a, [wUpdateAudioEngineUsingTimerInterrupt]
and a
call nz, ToggleAudioEngineUpdateMethod
call DisableLCD
ld hl, hSTAT
res 6, [hl]
ld hl, rIE
res 1, [hl]
ld a, [wCurrentStageBackup]
ld [wCurrentStage], a
ld a, [wStageCollisionStateBackup]
ld [wStageCollisionState], a
ld a, $1
ld [wScreenState], a
ret
TransitionToHighScoresScreen: ; 0xdb5d
xor a
ld [wGameOver], a
ld de, MUSIC_NOTHING
call PlaySong
ld bc, $0004
call AdvanceFrames
call FadeOut
call DisableLCD
ld hl, hSTAT
res 6, [hl]
ld hl, rIE
res 1, [hl]
xor a
ld [wDrawBottomMessageBox], a
ld a, [wCurrentStage]
ld c, a
ld b, $0
ld hl, HighScoresStageMapping
add hl, bc
ld a, [hl]
ld [wHighScoresStage], a
ld a, SCREEN_HIGH_SCORES
ld [wCurrentScreen], a
xor a
ld [wScreenState], a
ret
HighScoresStageMapping: ; 0xdb99
; Determines which stage the high scores screen will start in,
; based on the map the player ended in.
; See wHighScoresStage for more info.
db $00 ; STAGE_RED_FIELD_TOP
db $00 ; STAGE_RED_FIELD_BOTTOM
db $00
db $00
db $01 ; STAGE_BLUE_FIELD_TOP
db $01 ; STAGE_BLUE_FIELD_BOTTOM
db $00 ; STAGE_GENGAR_BONUS
db $00 ; STAGE_GENGAR_BONUS
db $00 ; STAGE_MEWTWO_BONUS
db $00 ; STAGE_MEWTWO_BONUS
db $00 ; STAGE_MEOWTH_BONUS
db $00 ; STAGE_MEOWTH_BONUS
db $00 ; STAGE_DIGLETT_BONUS
db $00 ; STAGE_DIGLETT_BONUS
db $00 ; STAGE_SEEL_BONUS
db $00 ; STAGE_SEEL_BONUS
Func_dba9: ; 0xdba9
ld a, $85
ld [wBottomMessageBuffer + $44], a
ld a, [wd49d]
xor $3
inc a
add $86
ld [wBottomMessageBuffer + $45], a
ret
|
