mirror of
https://frontier.innolan.net/github/AmigaExamples.git
synced 2026-09-12 09:22:02 +00:00
625 lines
12 KiB
ArmAsm
625 lines
12 KiB
ArmAsm
include "includes.i"
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xdef ResetPlayer
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xdef GetNextAutoMove
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xdef CheckPlayerMiss
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xdef UpdatePlayer
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xdef ProcessJoystick
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xdef InitialisePlayer
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xdef HidePlayer
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xdef SetupSpriteData
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xdef ScrollSprites
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xdef deadSprite ; used in items
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xdef UpdatePlayerFallingAnimation
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xdef InstallPlayerColorPalette
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xdef SelectNextPlayerSprite
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xdef SpriteEnableAuto
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xdef spriteLagX
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xdef spriteY
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xdef spriteX
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xdef playerLevelPausePixels
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xdef playerLevelMissPixels
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PLAYER_INSTALL_COLOR_PALETTE equ 0
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PLAYER_SPRITE_DATA equ 4
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PLAYER_SPRITE_FALLING_DATA equ 8
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ResetPlayer:
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bsr SpriteDisableAuto
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move.l playerSpriteConfig,a0
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move.l PLAYER_SPRITE_DATA(a0),d0
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add.l #6*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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move.w #PATHWAY_CONFIG_FREE,pathwayLastConfig
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move.w #0,pathwayMissPending
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bsr SpriteDisableAuto
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move.w #0,spritePlayerFallingAnimation
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move.w #PLAYER_INITIAL_X,spriteX
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move.w #PLAYER_INITIAL_Y,spriteY
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move.w #PLAYER_INITIAL_Y+16,spriteYEnd
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rts
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HidePlayer:
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move.w #0,spriteX
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move.w #0,spriteY
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move.w #0,spriteYEnd
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rts
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InitialisePlayer:
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move.l #PLAYER_LIVES_COUNTER,livesCounterText
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rts
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ScrollSprites:
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cmp.l #0,foregroundScrollPixels
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beq .skip
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sub.w #1,spriteX
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bra ScrollItemSprites
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.skip:
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rts
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UpdatePlayerFallingAnimation:
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move.w spritePlayerFallingAnimation,d0
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lsr.w #1,d0
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mulu.w #PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l playerSpriteConfig,a0
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move.l PLAYER_SPRITE_FALLING_DATA(a0),a0
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add.l d0,a0
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move.l a0,currentSprite
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add.w #1,spritePlayerFallingAnimation
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cmp.w #4<<1,spritePlayerFallingAnimation
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blt .dontResetAnimation
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move.w #0,spritePlayerFallingAnimation
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bsr HidePlayer
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.dontResetAnimation:
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rts
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UpdatePlayer:
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move.l playerSpriteConfig,a0
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move.l PLAYER_SPRITE_DATA(a0),d0
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move.w playerPausePixels,d2
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;; right
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cmp.w spriteR,d2
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bge .skipRight
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move.w playerMovePixels,d1
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add.w d1,spriteX
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add.l #7*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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.skipRight
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cmp.w #0,spriteR
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beq .notRight
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sub.w #1,spriteR
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cmp.w spriteR,d2
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ble .notRight
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add.l #6*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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.notRight:
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;; up
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cmp.w spriteU,d2
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bge .skipUp
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cmp.w #PLAYER_TOP_Y,spriteY
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ble .skipUp
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move.w playerMovePixels,d1
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sub.w d1,spriteY
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sub.w d1,spriteYEnd
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add.l #1*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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.skipUp:
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cmp.w #0,spriteU
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beq .notUp
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sub.w #1,spriteU
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cmp.w spriteU,d2
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ble .notUp
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move.l d0,currentSprite
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.notUp:
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;; down
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cmp.w spriteD,d2
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bge .skipDown
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cmp.w #PLAYER_BOTTOM_Y,spriteY
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bge .skipDown
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move.w playerMovePixels,d1
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add.w d1,spriteY
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add.w d1,spriteYEnd
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add.l #3*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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.skipDown:
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cmp.w #0,spriteD
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beq .notDown
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sub.w #1,spriteD
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cmp.w spriteD,d2
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ble .notDown
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add.l #2*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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.notDown:
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;; left
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cmp.w spriteL,d2
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bge .skipLeft
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move.w playerMovePixels,d1
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sub.w d1,spriteX
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add.l #5*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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.skipLeft
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cmp.w #0,spriteL
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beq .notLeft
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sub.w #1,spriteL
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cmp.w spriteL,d2
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ble .notLeft
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add.l #4*PLAYER_SPRITE_VERTICAL_BYTES,d0
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move.l d0,currentSprite
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.notLeft:
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cmp.w #$cf,spriteX
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blt .noScroll
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.noScroll:
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rts
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ProcessJoystick:
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;; 812
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;; 7 3
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;; 654
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jsr ReadJoystick
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cmp.w #0,spriteR
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bne .skip
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cmp.w #0,spriteU
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bne .skip
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cmp.w #0,spriteD
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bne .skip
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cmp.w #0,spriteL
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bne .skip
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cmp.w #0,spriteAutoMoveEnabled
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beq .autoMoveDisabled
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;; Set fast as default, will be overridden to correct speed
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move.w #PLAYER_FAST_PAUSE_PIXELS,playerPausePixels
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move.w #PLAYER_FAST_CHECK_MISS_PIXELS,playerMissPixels
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bsr GetNextAutoMove
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cmp.w #1,d0
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beq .skip
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.autoMoveDisabled:
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cmp.b #3,joystickpos
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bne .notRight
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PlayerMoveRight
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.notRight:
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cmp.b #1,joystickpos
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bne .notUp
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PlayerMoveUp
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.notUp:
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cmp.b #5,joystickpos
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bne .notDown
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PlayerMoveDown
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.notDown:
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cmp.b #7,joystickpos
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bne .notLeft
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PlayerMoveLeft
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.notLeft:
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.skip:
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rts
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SpriteEnableAuto:
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PlaySound Whoosh
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move.w #1,spriteAutoMoveEnabled
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rts
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SpriteDisableAuto:
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move.w #0,spriteAutoMoveEnabled
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move.w #PLAYER_JUMP_PIXELS,playerJumpPixels
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move.w #PLAYER_MOVE_PIXELS,playerMovePixels
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move.w playerLevelPausePixels,playerPausePixels
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move.w playerLevelMissPixels,playerMissPixels
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rts
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SetupSpriteData:
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move.l currentSprite,a0
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move.w spriteLagX,d0
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move.w d0,d1
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andi #1,d1
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lsr.l #1,d0
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move.b d0,1(a0) ;spriteHStart
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move.w spriteY,d0
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move.b d0,(a0) ;spriteVStart
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andi.w #$100,d0
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cmp.w #0,d0
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beq .s1
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ori.w #$4,d1
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.s1:
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move.w spriteYEnd,d0
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move.b d0,2(a0) ;spriteVStop
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move.l a0,SPR0PTH(a6)
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andi.w #$100,d0
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cmp.w #0,d0
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beq .s2
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ori.w #$2,d1
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.s2:
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move.b d1,3(a0) ;spriteControl
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jsr SetupItemSpriteData
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move.l #deadSprite,SPR1PTH(a6) ; unused - could only use if sprite resused player sprite palette
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move.l #deadSprite,SPR5PTH(a6) ; unused - we only allow one arrow per line per screen
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move.l #deadSprite,SPR6PTH(a6) ; unused - incompatible with oversize playfield data fetch
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move.l #deadSprite,SPR7PTH(a6) ; unused - incompatible with oversize playfield data fetch
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rts
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InstallPlayerColorPalette:
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move.l playerSpriteConfig,a0
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move.l PLAYER_INSTALL_COLOR_PALETTE(a0),a1
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jsr (a1)
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rts
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InstallPigColorPalette:
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include "out/sprite_pig-0-palette.s"
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rts
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InstallRobotColorPalette:
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include "out/sprite_robot-0-palette.s"
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rts
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InstallTankColorPalette:
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include "out/sprite_tank-0-palette.s"
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rts
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CheckPlayerMiss:
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;; check if player has fallen off the left side of the play area
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cmpi.w #PLAYER_INITIAL_X-15,spriteX
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blt .doBigBang
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move.w playerMissPixels,d1
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cmp.w spriteR,d1
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beq .check
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move.w playerMissPixels,d1
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cmp.w spriteU,d1
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beq .check
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move.w playerMissPixels,d1
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cmp.w spriteD,d1
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beq .check
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move.w playerMissPixels,d1
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cmp.w spriteL,d1
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beq .check
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rts
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.check:
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cmp.w #1,pathwayMissPending
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beq .doBigBang
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move.w #PATHWAY_CONFIG_FREE,pathwayLastConfig
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move.l pathwayMapPtr,a2
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move.l foregroundMapPtr,a3
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;; calculate the a2 offset of the top right tile based on foreground scroll
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move.l foregroundScrollX,d0
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lsr.l #FOREGROUND_SCROLL_TILE_INDEX_CONVERT,d0
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lsr.l #1,d0
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and.b #$f0,d0
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add.l d0,a2
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add.l d0,a3
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;; add the offset based on the sprite's x position
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move.w spriteX,d0
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;; move.w spriteLagX,d0
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cmpi.w #PLAYER_LEFT_X,d0
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blt .doBigBang
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sub.w #PLAYER_LEFT_X,d0
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lsr.w #4,d0 ; x columns
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move.l #(FOREGROUND_PLAYAREA_WIDTH_WORDS/2)-1,d1
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sub.w d0,d1
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mulu.w #FOREGROUND_PLAYAREA_HEIGHT_WORDS*2,d1
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sub.l d1,a2 ; player x if y == bottom ?
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sub.l d1,a3 ; player x if y == bottom ?
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;; add the offset based on the sprite's y postion
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move.w #PLAYER_BOTTOM_Y,d0
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sub.w spriteY,d0
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lsr.w #4,d0 ; y columns
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sub.l d1,d1
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move.w #FOREGROUND_PLAYAREA_HEIGHT_WORDS-1,d1
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sub.w d0,d1
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lsl.w #1,d1
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add.l d1,a2
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add.l d1,a3
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;; a2 now points at the pathway tile under the sprite
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move.l a2,pathwayPlayerTileAddress
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move.w (a2),d0
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move.w d0,spriteCurrentPathwayTile
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bsr CheckDirection
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cmp.w #$78e,d0
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bge .noBigBang
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;; a3 now points at the tile under the sprite
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move.l a3,foregroundPlayerTileAddress
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move.w (a3),d0
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cmp.w #FOREGROUND_TILE_EMPTY,d0 ; empty tile
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bge .doBigBang
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cmp.w #FOREGROUND_TILE_ENDLEVEL,d0
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beq .levelComplete
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cmp.w #$78e,d0
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bge .noBigBang
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.doBigBang:
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jmp BigBang
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.levelComplete:
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jmp LevelComplete
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.noBigBang:
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move.w (a3),d0
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cmp.w #$1e00,d0
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blt .dontRenderPathway
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move.w #2,pathwayRenderPending
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move.w #0,pathwayFadeCount
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jsr InstallTilePalette
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.dontRenderPathway:
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cmp.w #$f02,d0
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beq .clearPathway
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cmp.w #$1682,d0
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beq .clearPathway
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bra .dontClearPathway
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.clearPathway:
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move.w #2,pathwayClearPending
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move.l #PLAYER_BOTTOM_Y,d0
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sub.w spriteY,d0
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lsr.w #4,d0 ; y columns
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move.w #FOREGROUND_PLAYAREA_HEIGHT_WORDS-1,d1
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sub.l d0,d1
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mulu.w #2,d1
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sub.l d1,a3
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sub.l d1,a2
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move.l a3,startForegroundMapPtr
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move.l a2,startPathwayMapPtr
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.dontClearPathway:
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jsr DetectItemCollisions
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rts
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GetNextAutoMove:
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move.w spriteCurrentPathwayTile,d0
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lsr.w #4,d0
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cmp.w #$708,d0
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beq .horizontal
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cmp.w #$690,d0
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beq .topLeft
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cmp.w #$5a0,d0
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beq .leftBottom
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cmp.w #$4b0,d0
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beq .rightBottom
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cmp.w #$528,d0
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beq .topRight
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cmp.w #$618,d0
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beq .vertical
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bra .skip
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.horizontal:
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cmp.w #PLAYER_MOVE_RIGHT,spriteLastMove
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beq .goRight
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bra .goLeft
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.topLeft:
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cmp.w #PLAYER_MOVE_RIGHT,spriteLastMove
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beq .goUp
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bra .goLeft
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.leftBottom:
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cmp.w #PLAYER_MOVE_RIGHT,spriteLastMove
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beq .goDown
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bra .goLeft
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.topRight:
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cmp.w #PLAYER_MOVE_DOWN,spriteLastMove
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beq .goRight
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bra .goUp
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.rightBottom:
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cmp.w #PLAYER_MOVE_UP,spriteLastMove
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beq .goRight
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bra .goDown
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.vertical:
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cmp.w #PLAYER_MOVE_UP,spriteLastMove
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beq .goUp
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bra .goDown
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.default:
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bra .skip
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.goRight:
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PlayerMoveRight
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bra .done
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.goUp:
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PlayerMoveUp
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bra .done
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.goDown:
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PlayerMoveDown
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bra .done
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.goLeft:
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PlayerMoveLeft
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bra .done
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.done:
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move.w #1,d0
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rts
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.skip:
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bsr SpriteDisableAuto
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move.w #0,d0
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rts
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CheckDirection:
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move.w playerMissPixels,d1
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cmp.w #$7080,d0 ; dark horizontal
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beq .horizontal
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cmp.w #$708c,d0 ; light horizontal
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beq .horizontal
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cmp.w #$6900,d0 ; dark left-top
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beq .topLeft
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cmp.w #$690c,d0 ; light left-top
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beq .topLeft
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cmp.w #$5a00,d0 ; dark left-bottom
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beq .leftBottom
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cmp.w #$5a0c,d0 ; light left-bottom
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beq .leftBottom
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cmp.w #$4b00,d0 ; dark right-bottom
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beq .rightBottom
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cmp.w #$4b0c,d0 ; light right-bottom
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beq .rightBottom
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cmp.w #$5280,d0 ; dark top-right
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beq .topRight
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cmp.w #$528c,d0 ; light top-right
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beq .topRight
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cmp.w #$6180,d0 ; dark vertical
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beq .vertical
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cmp.w #$618c,d0 ; light vertical
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beq .vertical
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cmp.w #0,d0
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beq .ok
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jmp BigBang
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.horizontal:
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move.w #PATHWAY_CONFIG_HORIZONTAL,pathwayLastConfig
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cmp.w spriteR,d1
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beq .ok
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cmp.w spriteL,d1
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beq .ok
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jmp BigBang
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.vertical:
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move.w #PATHWAY_CONFIG_VERTICAL,pathwayLastConfig
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cmp.w spriteU,d1
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beq .ok
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cmp.w spriteD,d1
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beq .ok
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jmp BigBang
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.topLeft:
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move.w #PATHWAY_CONFIG_TOP_LEFT,pathwayLastConfig
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cmp.w spriteR,d1
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beq .ok
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cmp.w spriteD,d1
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beq .ok
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jmp BigBang
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.topRight:
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move.w #PATHWAY_CONFIG_TOP_RIGHT,pathwayLastConfig
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cmp.w spriteD,d1
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beq .ok
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cmp.w spriteL,d1
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beq .ok
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jmp BigBang
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.rightBottom:
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move.w #PATHWAY_CONFIG_BOT_RIGHT,pathwayLastConfig
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cmp.w spriteU,d1
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beq .ok
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cmp.w spriteL,d1
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beq .ok
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jmp BigBang
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.leftBottom:
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move.w #PATHWAY_CONFIG_BOT_LEFT,pathwayLastConfig
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cmp.w spriteR,d1
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beq .ok
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cmp.w spriteU,d1
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beq .ok
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jmp BigBang
|
|
.ok:
|
|
rts
|
|
|
|
|
|
SelectNextPlayerSprite:
|
|
cmp.l #tankPlayerSpriteConfig,playerSpriteConfig
|
|
beq .s1
|
|
add.l #3*4,playerSpriteConfig
|
|
bra .done
|
|
.s1:
|
|
move.l #pigPlayerSpriteConfig,playerSpriteConfig
|
|
.done:
|
|
bsr InstallPlayerColorPalette
|
|
rts
|
|
|
|
pigPlayerSpriteConfig:
|
|
dc.l InstallPigColorPalette
|
|
dc.l spritePig
|
|
dc.l spriteFalling1
|
|
|
|
robotPlayerSpriteConfig:
|
|
dc.l InstallRobotColorPalette
|
|
dc.l spriteRobot
|
|
dc.l spriteFallingRobot1
|
|
|
|
tankPlayerSpriteConfig:
|
|
dc.l InstallTankColorPalette
|
|
dc.l spriteTank
|
|
dc.l spriteFallingTank1
|
|
|
|
playerSpriteConfig:
|
|
dc.l pigPlayerSpriteConfig
|
|
|
|
include "sprite_data.i"
|
|
|
|
spritePlayerFallingAnimation:
|
|
dc.w 0
|
|
currentSpriteOffset:
|
|
dc.l 0
|
|
currentSprite:
|
|
dc.l spritePig
|
|
deadSprite:
|
|
dc.l 0
|
|
spriteR:
|
|
dc.w 0
|
|
spriteL:
|
|
dc.w 0
|
|
spriteU:
|
|
dc.w 0
|
|
spriteD:
|
|
dc.w 0
|
|
spriteLagX:
|
|
dc.w 0
|
|
spriteX:
|
|
dc.w $0
|
|
spriteY:
|
|
dc.w $e4
|
|
spriteYEnd:
|
|
dc.w $f5
|
|
spriteCurrentPathwayTile:
|
|
dc.w 0
|
|
spriteLastMove:
|
|
dc.w 0
|
|
spriteAutoMoveEnabled:
|
|
dc.w 0
|
|
playerMovePixels:
|
|
dc.w PLAYER_MOVE_PIXELS
|
|
playerJumpPixels:
|
|
dc.w PLAYER_JUMP_PIXELS
|
|
playerPausePixels:
|
|
dc.w 0
|
|
playerMissPixels:
|
|
dc.w 0
|
|
playerLevelPausePixels:
|
|
dc.w 0
|
|
playerLevelMissPixels
|
|
dc.w 0
|
|
pathwayLastConfig:
|
|
dc.w PATHWAY_CONFIG_FREE
|
|
pathwayMissPending:
|
|
dc.w 0
|
|
|