188 lines
4.3 KiB
NASM
188 lines
4.3 KiB
NASM
; =========================================================
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; Dungeon Object Handler
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org $018262
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dw ExpandedObject ; Object ID 0x31
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dw SecretObject ; Object ID 0x32
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; #_018650: dw RoomDraw_WeirdUglyPot ID 230
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org $018650
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dw HeavyPot
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; Item ID 22B
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; Heavy Pot grahics
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; Currently modified to look like normal pot
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org $00A9AC
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dw $0D28, $0D38, $4D28, $4D38
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; org $01B306 ; RoomDraw_WeirdGloveRequiredPot
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; LDA.w #$1010
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; Bank01 Free Space
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org $01B53C
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ExpandedObject:
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{
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JSL NewObjectsCode
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RTS
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}
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SecretObject:
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{
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JSL HandleSecretObjects
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RTS
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}
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HeavyPot:
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{
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LDA.w #$1010
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PHX : LDX.w $042C
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LDA.w #$1111 : STA $0500, X
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; Store object's position in the object buffer to $0520, X
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LDA $BA : STA $0520, X
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; Store tilemap position.
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TYA : STA $0540, X
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JMP $B350
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}
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warnpc $01B560
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; =========================================================
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org $2C8000
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NewObjectsCode:
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{
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PHB : PHK : PLB
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PHX
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STZ $03 ; 03 will be used to store the object ID for custom config
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LDA $00 : PHA
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LDA $02 : PHA
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; $00 Will be used for tile count and tile to skip
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LDA $B2 : ASL #2 : ORA $B4
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;get the offset for the object data based on the object height
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ASL : TAX
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LDA .ObjOffset, X
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TAX
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.lineLoop
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LDA .ObjData, X : BNE .continue
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;break
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BRA .Done
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.continue
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PHY ; Keep current position in the buffer
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STA $00 ; we save the tile count + tile to skip
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-- ;Tiles Loop
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INX : INX
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; Vhopppcc cccccccc
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LDA .ObjData, X : BEQ +
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JSR CustomDrawConfig
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STA [$BF], Y
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+
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INY : INY
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LDA $00 : DEC : STA $00 : AND #$001F : BNE +
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LDA $00 : XBA : AND #$00FF : STA $00
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PLA ;Pull back position
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CLC : ADC $00 : TAY
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INX : INX
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BRA .lineLoop
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+
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BRA --
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.Done
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PLA : STA $02
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PLA : STA $00 ;Not sure if needed
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PLX
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PLB
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RTL
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.ObjOffset
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dw .LeftRight-.ObjData ; 00
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dw .UpDown-.ObjData ; 01
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dw .TopLeft-.ObjData ; 02
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dw .TopRight-.ObjData ; 03
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dw .Bottomleft-.ObjData ; 04
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dw .BottomRight-.ObjData ; 05
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dw .UpDownFloor-.ObjData ; 06
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dw .LeftRightFloor-.ObjData ; 07
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dw .TopLeftFloor-.ObjData ; 08
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dw .TopRightFloor-.ObjData ; 09
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dw .BottomleftFloor-.ObjData ; 10
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dw .BottomRightFloor-.ObjData ; 11
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dw .FloorAny-.ObjData ; 12
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dw .WallSwordHouse-.ObjData ; 13
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dw .KydreeokBody-.ObjData ; 14
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dw .SmallStatue-.ObjData ; 15
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.ObjData
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.LeftRight
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incbin Data/track_LR.bin
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.UpDown
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incbin Data/track_UD.bin
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.TopLeft
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incbin Data/track_corner_TL.bin
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.TopRight
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incbin Data/track_corner_TR.bin
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.Bottomleft
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incbin Data/track_corner_BL.bin
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.BottomRight
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incbin Data/track_corner_BR.bin
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.UpDownFloor
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incbin Data/track_floor_UD.bin
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.LeftRightFloor
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incbin Data/track_floor_LR.bin
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.TopLeftFloor
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incbin Data/track_floor_corner_TL.bin
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.TopRightFloor
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incbin Data/track_floor_corner_TR.bin
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.BottomleftFloor
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incbin Data/track_floor_corner_BL.bin
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.BottomRightFloor
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incbin Data/track_floor_corner_BR.bin
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.FloorAny
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incbin Data/track_floor_any.bin
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.WallSwordHouse
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incbin Data/wall_sword_house.bin
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.KydreeokBody
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incbin Data/kydreeok_body.bin
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.SmallStatue
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incbin Data/small_statue.bin
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}
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; May need to make this a table
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; This modifies object 0xOE to use the spritesheets for the object
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CustomDrawConfig:
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{
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PHA
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LDA $03 : AND #$00FF : CMP.w #$000E : BEQ .custom_config
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TYA : LSR : AND #$00FF
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CMP #$000E : BNE .no_spriteset
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LDA #$000E : STA $03
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.custom_config
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PLA
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ORA.w #$0300 : JMP .return
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.no_spriteset
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PLA
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.return
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RTS
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}
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; =========================================================
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; Secret Object Handler
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; Disappears if Link uses the Book of Secrets near them
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HandleSecretObjects:
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{
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; TODO: Implement the Book of Secrets check
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; TODO: Add object draw code
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; TODO: Implement the object's disappearance
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RTL
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}
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pushpc
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