oracle-of-secrets/Sprites/NPCs/mask_salesman.asm

; =============================================================================
; Happy Mask Salesman Sprite
;
;
; =============================================================================

!SPRID              = $E8; The sprite ID you are overwriting (HEX)
!NbrTiles           = 02 ; Number of tiles used in a frame
!Harmless           = 01  ; 00 = Sprite is Harmful,  01 = Sprite is Harmless
!HVelocity          = 00  ; Is your sprite going super fast? put 01 if it is
!Health             = 00  ; Number of Health the sprite have
!Damage             = 00  ; (08 is a whole heart), 04 is half heart
!DeathAnimation     = 00  ; 00 = normal death, 01 = no death animation
!ImperviousAll      = 01  ; 00 = Can be attack, 01 = attack will clink on it
!SmallShadow        = 01  ; 01 = small shadow, 00 = no shadow
!Shadow             = 01  ; 00 = don't draw shadow, 01 = draw a shadow 
!Palette            = 00  ; Unused in this MaskSalesman (can be 0 to 7)
!Hitbox             = 00  ; 00 to 31, can be viewed in sprite draw tool
!Persist            = 00  ; 01 = your sprite continue to live offscreen
!Statis             = 00  ; 00 = is sprite is alive?, (kill all enemies room)
!CollisionLayer     = 00  ; 01 = will check both layer for collision
!CanFall            = 00  ; 01 sprite can fall in hole, 01 = can't fall
!DeflectArrow       = 00  ; 01 = deflect arrows
!WaterSprite        = 00  ; 01 = can only walk shallow water
!Blockable          = 00  ; 01 = can be blocked by link's shield?
!Prize              = 00  ; 00-15 = the prize pack the sprite will drop from
!Sound              = 00  ; 01 = Play different sound when taking damage
!Interaction        = 00  ; ?? No documentation
!Statue             = 00  ; 01 = Sprite is statue
!DeflectProjectiles = 00  ; 01 = Sprite will deflect ALL projectiles
!ImperviousArrow    = 00  ; 01 = Impervious to arrows
!ImpervSwordHammer  = 00  ; 01 = Impervious to sword and hammer attacks
!Boss               = 00  ; 00 = normal sprite, 01 = sprite is a boss

%Set_Sprite_Properties(Sprite_MaskSalesman_Prep, Sprite_MaskSalesman_Long);

; =============================================================================

Sprite_MaskSalesman_Long:
{  
  PHB : PHK : PLB

  JSR Sprite_MaskSalesman_Draw ; Call the draw code
  JSL Sprite_CheckActive   ; Check if game is not paused
  BCC .SpriteIsNotActive   ; Skip Main code is sprite is innactive

  JSR Sprite_MaskSalesman_Main ; Call the main sprite code

  .SpriteIsNotActive
  PLB ; Get back the databank we stored previously
  RTL ; Go back to original code
}

; =============================================================================

Sprite_MaskSalesman_Prep:
{
  PHB : PHK : PLB
    
  ; Add more code here to initialize data

  PLB
  RTL
}

; =============================================================================

Sprite_MaskSalesman_Main:
{
  LDA.w SprAction, X
  JSL UseImplicitRegIndexedLocalJumpTable 

  dw InquiryHandler
  dw NoOcarina
  dw HasOcarina
  dw TeachLinkSong
  dw SongQuestComplete

  InquiryHandler:
  {  
    %PlayAnimation(0, 1, 16)
    %ShowSolicitedMessage($E5)
    BCC .didnt_converse

    LDA $1CE8 : BNE .player_said_no

    ; Player wants to buy a mask
    LDA.l $7EF34C : CMP.b #$02 : BEQ .has_ocarina
                    CMP.b #$03 : BEQ .has_all_songs

    %GotoAction(1)
    RTS

  .has_ocarina
    %GotoAction(2)
    RTS

  .has_all_songs
    %GotoAction(3)
  
  .didnt_converse
  .player_said_no
    RTS
  }

  ; Link has not yet gotten the Ocarina
  NoOcarina:
  {
    %PlayAnimation(0, 1, 16)
    %ShowUnconditionalMessage($E9) ; Go get the Ocarina first!

    %GotoAction(0)
    RTS
  }

  ; Link has the Ocarina, but not all the songs
  HasOcarina:
  {
    %PlayAnimation(0, 1, 16)
    %ShowUnconditionalMessage($11C) ; Excellent, you have the Ocarina 



    %GotoAction(0)
    RTS
  }

  TeachLinkSong:
  {


    RTS
  }

  ; Link has all the songs 
  SongQuestComplete:
  {
    %PlayAnimation(0, 1, 16)
    %ShowUnconditionalMessage($E9) 

    %GotoAction(0)
    RTS
  }
}

; =============================================================================

Sprite_MaskSalesman_Draw:
{  
  JSL Sprite_PrepOamCoord
  JSL Sprite_OAM_AllocateDeferToPlayer

  LDA $0DC0, X : CLC : ADC $0D90, X : TAY;Animation Frame
  LDA .start_index, Y : STA $06


  PHX
  LDX .nbr_of_tiles, Y ;amount of tiles -1
  LDY.b #$00
  .nextTile

  PHX ; Save current Tile Index?
      
  TXA : CLC : ADC $06 ; Add Animation Index Offset

  PHA ; Keep the value with animation index offset?

  ASL A : TAX 

  REP #$20

  LDA $00 : CLC : ADC .x_offsets, X : STA ($90), Y
  AND.w #$0100 : STA $0E 
  INY
  LDA $02 : CLC : ADC .y_offsets, X : STA ($90), Y
  CLC : ADC #$0010 : CMP.w #$0100
  SEP #$20
  BCC .on_screen_y

  LDA.b #$F0 : STA ($90), Y ;Put the sprite out of the way
  STA $0E
  .on_screen_y

  PLX ; Pullback Animation Index Offset (without the *2 not 16bit anymore)
  INY
  LDA .chr, X : STA ($90), Y
  INY
  LDA .properties, X : STA ($90), Y

  PHY 
      
  TYA : LSR #2 : TAY
      
  LDA .sizes, X : ORA $0F : STA ($92), Y ; store size in oam buffer
      
  PLY : INY
      
  PLX : DEX : BPL .nextTile

  PLX

  RTS

; =============================================================================

.start_index
  db $00, $04
.nbr_of_tiles
  db 3, 3
.x_offsets
  dw -4, 12, 0, 0
  dw 4, -12, 0, 0
.y_offsets
  dw -8, -8, 0, -11
  dw -8, -8, 0, -10
.chr
  db $82, $84, $A0, $80
  db $82, $84, $A0, $80
.properties
  db $39, $39, $39, $39
  db $79, $79, $79, $39
.sizes
  db $02, $02, $02, $02
  db $02, $02, $02, $02

}