alttpr-gwaa-kiwi/alttpr-baserom
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
8e1ebe54047d5a302541a9071b2679e51224ac86
alttpr-baserom/utilities.asm
Karkat c631415465 let's dev aug 9 2017 
fixed tablet text not displaying in swordless
fixed goal item transition to triforce scene bugs
fixed map carryover for hyrule castle and sewers
fixed item graphics for bottle overflow
fixed item graphics for armor overflow
2017-08-09 23:13:28 -04:00

560 lines
17 KiB
NASM
Raw Blame History

;================================================================================
; Utility Functions
;================================================================================
!PROGRESSIVE_SHIELD = "$7EF416" ; ss-- ----
;--------------------------------------------------------------------------------
; GetSpriteTile
; in: A - Loot ID
; out: A - Sprite GFX ID
;--------------------------------------------------------------------------------
GetSpriteID:
CMP.b #$16 : BEQ .bottle ; Bottle
CMP.b #$2B : BEQ .bottle ; Red Potion w/bottle
CMP.b #$2C : BEQ .bottle ; Green Potion w/bottle
CMP.b #$2D : BEQ .bottle ; Blue Potion w/bottle
CMP.b #$3C : BEQ .bottle ; Bee w/bottle
CMP.b #$3D : BEQ .bottle ; Fairy w/bottle
CMP.b #$48 : BEQ .bottle ; Gold Bee w/bottle
BRA .notBottle
.bottle
PHA : JSR.w CountBottles : CMP.l BottleLimit : !BLT +
PLA : LDA.l BottleLimitReplacement
JSL.l GetSpriteID
RTL
+
PLA : .notBottle
PHX
PHB : PHK : PLB
;--------
TAX : LDA .gfxSlots, X ; look up item gfx
PLB : PLX
CMP.b #$FA : !BGE .specialHandling
RTL
.specialHandling
CMP.b #$FA : BNE ++ ; RNG Item (Single)
JSL.l GetRNGItemSingle : JMP GetSpriteID
++ CMP.b #$FB : BNE ++ ; RNG Item (Multi)
JSL.l GetRNGItemMulti : JMP GetSpriteID
++ CMP.b #$FD : BNE ++ ; Progressive Armor
LDA $7EF35B : CMP.l ProgressiveArmorLimit : !BLT + ; Progressive Armor Limit
LDA.l ProgressiveArmorReplacement
JSL.l GetSpriteID
RTL
+
LDA.b #$04 : RTL
++ CMP.b #$FE : BNE ++ ; Progressive Sword
LDA $7EF359
CMP.l ProgressiveSwordLimit : !BLT + ; Progressive Sword Limit
LDA.l ProgressiveSwordReplacement
JSL.l GetSpriteID
RTL
+ : CMP.b #$00 : BNE + ; No Sword
LDA.b #$43 : RTL
+ : CMP.b #$01 : BNE + ; Fighter Sword
LDA.b #$44 : RTL
+ : CMP.b #$02 : BNE + ; Master Sword
LDA.b #$45 : RTL
+ ; CMP.b #$03 : BNE + ; Tempered Sword
LDA.b #$46 : RTL
+
++ : CMP.b #$FF : BNE ++ ; Progressive Shield
LDA !PROGRESSIVE_SHIELD : AND #$C0 : LSR #6
CMP.l ProgressiveShieldLimit : !BLT + ; Progressive Shield Limit
LDA.l ProgressiveShieldReplacement
JSL.l GetSpriteID
RTL
+ : CMP.b #$00 : BNE + ; No Shield
LDA.b #$2D : RTL
+ : CMP.b #$01 : BNE + ; Fighter Shield
LDA.b #$20 : RTL
+ ; Everything Else
LDA.b #$2E : RTL
++
RTL
;DATA - Loot Identifier to Sprite ID
{
.gfxSlots
db $06, $44, $45, $46, $2D, $20, $2E, $09
db $09, $0A, $08, $05, $10, $0B, $2C, $1B
db $1A, $1C, $14, $19, $0C, $07, $1D, $2F
db $07, $15, $12, $0D, $0D, $0E, $11, $17
db $28, $27, $04, $04, $0F, $16, $03, $13
db $01, $1E, $10, $00, $00, $00, $00, $00
db $00, $30, $22, $21, $24, $24, $24, $23
db $23, $23, $29, $2A, $2C, $2B, $03, $03
db $34, $35, $31, $33, $02, $32, $36, $37
db $2C, $43, $0C, $38, $39, $3A, $3B, $3C
; db $2C, $06, $0C, $38, $FF, $FF, $FF, $FF
;5x
db $44 ; Safe Master Sword
db $3D, $3E, $3F, $40 ; Bomb & Arrow +5/+10
db $00, $00, $00 ; 3x Programmable Item
db $41 ; Upgrade-Only Silver Arrows
db $24 ; 1 Rupoor
db $47 ; Null Item
db $48, $48, $48 ; Red, Blue & Green Clocks
db $FE, $FF ; Progressive Sword & Shield
;6x
db $FD, $0D ; Progressive Armor & Gloves
db $FA, $FB ; RNG Single & Multi
db $FF, $FF, $FF, $FF, $FF, $FF ; Unused
db $49, $4A, $49 ; Goal Item Single, Multi & Alt Multi
db $FF, $FF, $FF ; Unused
;7x
db $21, $21, $21, $21, $21, $21, $21, $21, $21, $21, $21, $21, $21, $21, $21, $21 ; Free Map
;7x
db $16, $16, $16, $16, $16, $16, $16, $16, $16, $16, $16, $16, $16, $16, $16, $16 ; Free Compass
;7x
db $22, $22, $22, $22, $22, $22, $22, $22, $22, $22, $22, $22, $22, $22, $22, $22 ; Free Big Key
;7x
db $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F, $0F ; Free Small Key
}
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; GetSpritePalette
; in: A - Loot ID
; out: A - Palette
;--------------------------------------------------------------------------------
GetSpritePalette:
CMP.b #$16 : BEQ .bottle ; Bottle
CMP.b #$2B : BEQ .bottle ; Red Potion w/bottle
CMP.b #$2C : BEQ .bottle ; Green Potion w/bottle
CMP.b #$2D : BEQ .bottle ; Blue Potion w/bottle
CMP.b #$3C : BEQ .bottle ; Bee w/bottle
CMP.b #$3D : BEQ .bottle ; Fairy w/bottle
CMP.b #$48 : BEQ .bottle ; Gold Bee w/bottle
BRA .notBottle
.bottle
PHA : JSR.w CountBottles : CMP.l BottleLimit : !BLT +
PLA : LDA.l BottleLimitReplacement
JSL.l GetSpritePalette
RTL
+
PLA : .notBottle
PHX
PHB : PHK : PLB
;--------
TAX : LDA .gfxPalettes, X ; look up item gfx
PLB : PLX
CMP.b #$FA : !BGE .specialHandling
RTL
.specialHandling
CMP.b #$FD : BNE ++ ; Progressive Sword
LDA $7EF359
CMP.l ProgressiveSwordLimit : !BLT + ; Progressive Sword Limit
LDA.l ProgressiveSwordReplacement
JSL.l GetSpritePalette
RTL
+ : CMP.b #$00 : BNE + ; No Sword
LDA.b #$04 : RTL
+ : CMP.b #$01 : BNE + ; Fighter Sword
LDA.b #$04 : RTL
+ : CMP.b #$02 : BNE + ; Master Sword
LDA.b #$02 : RTL
+ ; Everything Else
LDA.b #$08 : RTL
++ : CMP.b #$FE : BNE ++ ; Progressive Shield
LDA !PROGRESSIVE_SHIELD : AND #$C0 : LSR #6
CMP.l ProgressiveShieldLimit : !BLT + ; Progressive Shield Limit
LDA.l ProgressiveShieldReplacement
JSL.l GetSpritePalette
RTL
+ : CMP.b #$00 : BNE + ; No Shield
LDA.b #$04 : RTL
+ : CMP.b #$01 : BNE + ; Fighter Shield
LDA.b #$02 : RTL
+ ; Everything Else
LDA.b #$08 : RTL
++ : CMP.b #$FF : BNE ++ ; Progressive Armor
LDA $7EF35B : CMP.l ProgressiveArmorLimit : !BLT + ; Progressive Armor Limit
LDA.l ProgressiveArmorReplacement
JSL.l GetSpritePalette
RTL
+ : CMP.b #$00 : BNE + ; Green Tunic
LDA.b #$04 : RTL
+ ; Everything Else
LDA.b #$02 : RTL
++ : CMP.b #$FC : BNE ++ ; Progressive Gloves
LDA $7EF354 : BNE + ; No Gloves
LDA.b #$02 : RTL
+ ; Everything Else
LDA.b #$08 : RTL
++ : CMP.b #$FA : BNE ++ ; RNG Item (Single)
JSL.l GetRNGItemSingle : JMP GetSpritePalette
++ : CMP.b #$FB : BNE ++ ; RNG Item (Multi)
JSL.l GetRNGItemMulti : JMP GetSpritePalette
++
RTL
;DATA - Loot Identifier to Sprite Palette
{
.gfxPalettes
db $00, $04, $02, $08, $04, $02, $08, $02
db $04, $02, $02, $02, $04, $04, $04, $08
db $08, $08, $02, $02, $04, $02, $02, $02
db $04, $02, $04, $02, $08, $08, $04, $02
db $0A, $02, $04, $02, $04, $04, $00, $04
db $04, $08, $02, $02, $08, $04, $02, $08
db $04, $04, $08, $08, $08, $04, $02, $08
db $02, $04, $08, $02, $04, $04, $02, $02
db $08, $08, $02, $04, $04, $08, $08, $08
db $04, $04, $04, $02, $08, $08, $08, $08
; db $04, $0A, $04, $02, $FF, $FF, $FF, $FF
db $04 ; Safe Master Sword
db $08, $08, $08, $08 ; Bomb & Arrow +5/+10
db $00, $00, $00 ; Programmable Items 1-2
db $02 ; Upgrade-Only Silver Arrows
db $06 ; 1 Rupoor
db $02 ; Null Item
db $02, $04, $08 ; Red, Blue & Green Clocks
db $FD, $FE, $FF, $FC ; Progressive Sword, Shield, Armor & Gloves
db $FA, $FB ; RNG Single & Multi
db $00, $00, $00, $00, $00, $00 ; Unused
db $08, $08, $08 ; Goal Item Single, Multi & Alt Multi
db $00, $00, $00 ; Unused
db $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08 ; Free Map
db $04, $04, $04, $04, $04, $04, $04, $04, $04, $04, $04, $04, $04, $04, $04, $04 ; Free Compass
db $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08 ; Free Big Key
db $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08, $08 ; Free Small Key
}
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; IsNarrowSprite
; in: A - Loot ID
; out: Carry - 0 = Full, 1 = Narrow
;--------------------------------------------------------------------------------
IsNarrowSprite:
PHA : PHX
PHB : PHK : PLB
;--------
CMP.b #$16 : BEQ .bottle ; Bottle
CMP.b #$2B : BEQ .bottle ; Red Potion w/bottle
CMP.b #$2C : BEQ .bottle ; Green Potion w/bottle
CMP.b #$2D : BEQ .bottle ; Blue Potion w/bottle
CMP.b #$3C : BEQ .bottle ; Bee w/bottle
CMP.b #$3D : BEQ .bottle ; Fairy w/bottle
CMP.b #$48 : BEQ .bottle ; Gold Bee w/bottle
BRA .notBottle
.bottle
JSR.w CountBottles : CMP.l BottleLimit : !BLT +
LDA.l BottleLimitReplacement
JSL.l IsNarrowSprite
BRL .done
+ : BRA .continue
.notBottle
CMP.b #$5E : BNE ++ ; Progressive Sword
LDA $7EF359 : CMP.l ProgressiveSwordLimit : !BLT + ; Progressive Sword Limit
LDA.l ProgressiveSwordReplacement
JSL.l IsNarrowSprite
BRA .done
+ : BRA .continue
++ : CMP.b #$5F : BNE ++ ; Progressive Shield
LDA !PROGRESSIVE_SHIELD : AND #$C0 : BNE + : SEC : BRA .done ; No Shield
LSR #6 : CMP.l ProgressiveShieldLimit : !BLT + ; Progressive Shield Limit
LDA.l ProgressiveShieldReplacement
JSL.l IsNarrowSprite
BRA .done
+
;LDA $7EF35A : BNE + : SEC : BRA .done : +; No Shield
BRA .false ; Everything Else
++ CMP.b #$60 : BNE ++ ; Progressive Armor
LDA $7EF35B : CMP.l ProgressiveArmorLimit : !BLT + ; Progressive Armor Limit
LDA.l ProgressiveArmorReplacement
JSL.l IsNarrowSprite
BRA .done
+
++ CMP.b #$62 : BNE ++ ; RNG Item (Single)
JSL.l GetRNGItemSingle : BRA .continue
++ CMP.b #$63 : BNE ++ ; RNG Item (Multi)
JSL.l GetRNGItemMulti
++
.continue
;--------
LDX.b #$00 ; set index counter to 0
;----
-
CPX.b #$24 : !BGE .false ; finish if we've done the whole list
CMP .smallSprites, X : BNE + ; skip to next if we don't match
;--
SEC ; set true state
BRA .done ; we're done
;--
+
INX ; increment index
BRA - ; go back to beginning of loop
;----
.false
CLC
.done
PLB : PLX : PLA
RTL
;DATA - Half-Size Sprite Markers
{
.smallSprites
db $04, $07, $08, $09, $0A, $0B, $0C, $13
db $15, $18, $24, $2A, $31, $34, $35, $36
db $42, $43, $45, $59, $A0, $A1, $A2, $A3
db $A4, $A5, $A6, $A7, $A8, $A9, $AA, $AB
db $AC, $AD, $AE, $AF, $FF, $FF, $FF, $FF
}
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; PrepDynamicTile
; in: A - Loot ID
;-------------------------------------------------------------------------------- 20/8477
PrepDynamicTile:
PHA : PHX : PHY
JSR.w LoadDynamicTileOAMTable
JSL.l GetSpriteID ; convert loot id to sprite id
JSL.l GetAnimatedSpriteTile_variable
PLY : PLX : PLA
RTL
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; LoadDynamicTileOAMTable
; in: A - Loot ID
;-------------------------------------------------------------------------------- 20/847B
!SPRITE_OAM = "$7EC025"
;--------------------------------------------------------------------------------
LoadDynamicTileOAMTable:
PHA : PHP
PHA
REP #$20 ; set 16-bit accumulator
LDA.w #$0000 : STA.l !SPRITE_OAM
STA.l !SPRITE_OAM+2
LDA.w #$0200 : STA.l !SPRITE_OAM+6
SEP #$20 ; set 8-bit accumulator
LDA.b #$24 : STA.l !SPRITE_OAM+4
LDA $01,s
JSL.l GetSpritePalette
STA !SPRITE_OAM+5 : STA !SPRITE_OAM+13
PLA
JSL.l IsNarrowSprite : BCS .narrow
BRA .done
.narrow
REP #$20 ; set 16-bit accumulator
LDA.w #$0000 : STA.l !SPRITE_OAM+7
STA.l !SPRITE_OAM+14
LDA.w #$0800 : STA.l !SPRITE_OAM+9
LDA.w #$3400 : STA.l !SPRITE_OAM+11
.done
PLP : PLA
RTS
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; DrawDynamicTile
; in: A - Loot ID
; out: A - OAM Slots Taken
;--------------------------------------------------------------------------------
; This wastes two OAM slots if you don't want a shadow - fix later - I wrote "fix later" over a year ago and it's still not fixed (Aug 6, 2017)
;-------------------------------------------------------------------------------- 2084B8
!SPRITE_OAM = "$7EC025"
!SKIP_EOR = "$7F5008"
;--------------------------------------------------------------------------------
DrawDynamicTile:
JSL.l IsNarrowSprite : BCS .narrow
.full
LDA.b #$01 : STA $06
LDA #$0C : JSL.l OAM_AllocateFromRegionC
LDA #$02 : PHA
BRA .draw
.narrow
LDA.b #$02 : STA $06
LDA #$10 : JSL.l OAM_AllocateFromRegionC
LDA #$03 : PHA
.draw
LDA.b #!SPRITE_OAM>>0 : STA $08
LDA.b #!SPRITE_OAM>>8 : STA $09
STZ $07
LDA #$7E : PHB : PHA : PLB
LDA.b #$01 : STA.l !SKIP_EOR
JSL Sprite_DrawMultiple_quantity_preset
PLB
LDA $90 : !ADD.b #$08 : STA $90 ; leave the pointer in the right spot to draw the shadow, if desired
LDA $92 : INC #2 : STA $92
PLA
RTL
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; Sprite_IsOnscreen
; in: X - Sprite Slot
; out: Carry - 1 = On Screen, 0 = Off Screen
;--------------------------------------------------------------------------------
Sprite_IsOnscreen:
JSR _Sprite_IsOnscreen_DoWork
BCS +
REP #$20
LDA $E2 : PHA : !SUB.w #$0F : STA $E2
LDA $E8 : PHA : !SUB.w #$0F : STA $E8
SEP #$20
JSR _Sprite_IsOnscreen_DoWork
REP #$20
PLA : STA $E8
PLA : STA $E2
SEP #$20
+
RTL
_Sprite_IsOnscreen_DoWork:
LDA $0D10, X : CMP $E2
LDA $0D30, X : SBC $E3 : BNE .offscreen
LDA $0D00, X : CMP $E8
LDA $0D20, X : SBC $E9 : BNE .offscreen
SEC
RTS
.offscreen
CLC
RTS
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; Sprite_GetScreenRelativeCoords:
; out: $00.w Sprite Y
; out: $02.w Sprite X
; out: $06.b Sprite Y Relative
; out: $07.b Sprite X Relative
;--------------------------------------------------------------------------------
; Copied from bank $06
;--------------------------------------------------------------------------------
!spr_y_lo = $00
!spr_y_hi = $01
!spr_x_lo = $02
!spr_x_hi = $03
!spr_y_screen_rel = $06
!spr_x_screen_rel = $07
;--------------------------------------------------------------------------------
Sprite_GetScreenRelativeCoords:
STY $0B
STA $08
LDA $0D00, X : STA $00
!SUB $E8 : STA $06
LDA $0D20, X : STA $01
LDA $0D10, X : STA $02
!SUB $E2 : STA $07
LDA $0D30, X : STA $03
RTL
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; SkipDrawEOR - Shims in Bank05.asm : 2499
;--------------------------------------------------------------------------------
!SKIP_EOR = "$7F5008"
;--------------------------------------------------------------------------------
SkipDrawEOR:
LDA.l !SKIP_EOR : BEQ .normal
LDA.w #$0000 : STA.l !SKIP_EOR
LDA $04 : AND.w #$F0FF : STA $04
.normal
LDA ($08), Y : EOR $04 ; thing we wrote over
RTL
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; HexToDec
; in: A(w) - Word to Convert
; out: $7F5003 - $7F5007 (high - low)
;--------------------------------------------------------------------------------
HexToDec:
PHA
PHA
LDA.w #$9090
STA $7F5003 : STA $7F5005 : STA $7F5006 ; clear digit storage
PLA
-
CMP.w #10000 : !BLT +
PHA : SEP #$20 : LDA $7F5003 : INC : STA $7F5003 : REP #$20 : PLA
!SUB.w #10000 : BRA -
+ -
CMP.w #1000 : !BLT +
PHA : SEP #$20 : LDA $7F5004 : INC : STA $7F5004 : REP #$20 : PLA
!SUB.w #1000 : BRA -
+ -
CMP.w #100 : !BLT +
PHA : SEP #$20 : LDA $7F5005 : INC : STA $7F5005 : REP #$20 : PLA
!SUB.w #100 : BRA -
+ -
CMP.w #10 : !BLT +
PHA : SEP #$20 : LDA $7F5006 : INC : STA $7F5006 : REP #$20 : PLA
!SUB.w #10 : BRA -
+ -
CMP.w #1 : !BLT +
PHA : SEP #$20 : LDA $7F5007 : INC : STA $7F5007 : REP #$20 : PLA
!SUB.w #1 : BRA -
+
PLA
RTL
;--------------------------------------------------------------------------------
;--------------------------------------------------------------------------------
; NameHash
; out:
; $00 - $07 - 64-bit Seed Hash
;--------------------------------------------------------------------------------
NameHash:
PHP
SEP #$30 ; set 8-bit accumulator & index registers
LDY #$00; ; for (j = 0; j < 8; ++j) {
-
CPY #$08 : !BGE +
LDA $00FFC0 : PHY : !ADD 1,s : STA 1,s : PLX : LDA.l NameHashTable, X ; h = T[(x[0] + j) % 256];
PHY
LDY #$01 ; for (i = 1; i < len; ++i) {
--
CPY #21 : !BGE ++ ; 21 decimal
TYX : EOR $00FFC0, X : TAX : LDA.l NameHashTable, X ; h = T[h ^ x[i]];
INY
BRA --
++ ; }
PLY : TYX
STA $00, X
INY
BRA -
+ ; }
PLP
RTL
;--------------------------------------------------------------------------------
;================================================================================
Reference in New Issue View Git Blame Copy Permalink