hook vanilla HUD code
This commit is contained in:
Justin Scofield
@@ -2,160 +2,165 @@ org $0DFB91
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JSL NewMenuUpdate
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RTS
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org $3D8000
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newIgnoreItemBox:
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JSL NewMenuUpdate_ignoreItemBox
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RTS
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org $0DDD21
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JSR newIgnoreItemBox
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org $268000
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NewMenuUpdate:
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{
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PHB : PHK : PLB
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JSR Hud_UpdateItemBox
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; *$6FB94 ALTERNATE ENTRY POINT
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.ignoreItemBox
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SEP #$30
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; ; *$6FB94 ALTERNATE ENTRY POINT
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; .ignoreItemBox
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; the hook for optimization was placed here...
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; need to draw partial heart still though. update: optimization complete with great results
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LDA.b #$FD : STA $0A
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LDA.b #$F9 : STA $0B
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LDA.b #$0D : STA $0C
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LDA.b #$68 : STA $07
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LDA.b #$C7 : STA $08
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LDA.b #$7E : STA $09
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REP #$30
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; Load Capacity health.
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LDA $7EF36C : AND.w #$00FF : STA $00 : STA $02 : STA $04
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; First, just draw all the empty hearts (capacity health)
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JSR HUD_UpdateHearts
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SEP #$30
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LDA.b #$03 : STA $0A
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LDA.b #$FA : STA $0B
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LDA.b #$0D : STA $0C
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LDA.b #$68 : STA $07
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LDA.b #$C7 : STA $08
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LDA.b #$7E : STA $09
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; Branch if at full health
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LDA $7EF36C : CMP $7EF36D : BEQ .healthUpdated
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; Seems absurd to have a branch of zero bytes, right?
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SBC #$04 : CMP $7EF36D : BCS .healthUpdated
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; SEP #$30
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; ; the hook for optimization was placed here...
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; ; need to draw partial heart still though. update: optimization complete with great results
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; LDA.b #$FD : STA $0A
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; LDA.b #$F9 : STA $0B
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; LDA.b #$0D : STA $0C
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; LDA.b #$68 : STA $07
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; LDA.b #$C7 : STA $08
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; LDA.b #$7E : STA $09
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; REP #$30
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; ; Load Capacity health.
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; LDA $7EF36C : AND.w #$00FF : STA $00 : STA $02 : STA $04
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; ; First, just draw all the empty hearts (capacity health)
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; JSR HUD_UpdateHearts
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; SEP #$30
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; LDA.b #$03 : STA $0A
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; LDA.b #$FA : STA $0B
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; LDA.b #$0D : STA $0C
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; LDA.b #$68 : STA $07
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; LDA.b #$C7 : STA $08
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; LDA.b #$7E : STA $09
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; ; Branch if at full health
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; LDA $7EF36C : CMP $7EF36D : BEQ .healthUpdated
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; ; Seems absurd to have a branch of zero bytes, right?
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; SBC #$04 : CMP $7EF36D : BCS .healthUpdated
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.healthUpdated
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; .healthUpdated
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; A = actual health + 0x03;
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LDA $7EF36D : ADC.b #$03
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REP #$30
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AND.w #$00FC : STA $00 : STA $04
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LDA $7EF36C : AND.w #$00FF : STA $02
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; this time we're filling in the full and partially filled hearts (actual health)
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JSR HUD_UpdateHearts
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; ; A = actual health + 0x03;
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; LDA $7EF36D : ADC #$03
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; REP #$30
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; AND.w #$00FC : STA $00 : STA $04
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; LDA $7EF36C : AND.w #$00FF : STA $02
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; ; this time we're filling in the full and partially filled hearts (actual health)
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; JSR HUD_UpdateHearts
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; *$6FC09 ALTERNATE ENTRY POINT ; reentry hook
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.ignoreHealth
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; ; *$6FC09 ALTERNATE ENTRY POINT ; reentry hook
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; .ignoreHealth
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REP #$30
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; Magic amount indicator (normal, 1/2, or 1/4)
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LDA $7EF37B : AND.w #$00FF : CMP.w #$0001 : BCC .normalMagicMeter
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; draws a 1/2 magic meter (note, we could add in the 1/4 magic meter here if
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; we really cared about that >_>
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LDA.w #$28F7 : STA $7EC704
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LDA.w #$2851 : STA $7EC706
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LDA.w #$28FA : STA $7EC708
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; REP #$30
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; ; Magic amount indicator (normal, 1/2, or 1/4)
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; LDA $7EF37B : AND.w #$00FF : CMP.w #$0001 : BCC .normalMagicMeter
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; ; draws a 1/2 magic meter (note, we could add in the 1/4 magic meter here if
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; ; we really cared about that >_>
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; LDA.w #$28F7 : STA $7EC704
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; LDA.w #$2851 : STA $7EC706
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; LDA.w #$28FA : STA $7EC708
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.normalMagicMeter
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; .normalMagicMeter
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; ; check how much magic power the player has at the moment (ranges from 0 to 0x7F)
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; ; X = ((MP & 0xFF)) + 7) & 0xFFF8)
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; LDA $7EF36E : AND.w #$00FF : ADC #$0007 : AND.w #$FFF8 : TAX
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; ; these four writes draw the magic power bar based on how much MP you have
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; LDA MagicTilemap+0, X : STA $7EC746
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; LDA MagicTilemap+2, X : STA $7EC786
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; LDA MagicTilemap+4, X : STA $7EC7C6
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; LDA MagicTilemap+6, X : STA $7EC806
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; ; Load how many rupees the player has
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; LDA $7EF362
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; JSR HexToDecimal
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; REP #$30
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; ; The tile index for the first rupee digit
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; LDA $03 : AND.w #$00FF : ORA.w #$2400 : STA $7EC750
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; ; The tile index for the second rupee digit
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; LDA $04 : AND.w #$00FF : ORA.w #$2400 : STA $7EC752
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; ; The tile index for the third rupee digit
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; LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC754
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; ; Number of bombs Link has.
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; LDA $7EF343 : AND.w #$00FF
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; JSR HexToDecimal
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; REP #$30
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; ; The tile index for the first bomb digit
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; LDA $04 : AND.w #$00FF : ORA.w #$2400 : STA $7EC758
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; ; The tile index for the second bomb digit
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; LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC75A
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; ; Number of Arrows Link has.
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; LDA $7EF377 : AND.w #$00FF
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; ; converts hex to up to 3 decimal digits
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; JSR HexToDecimal
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; REP #$30
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; ; ; The tile index for the first arrow digit
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; ; LDA $04 : AND.w #$00FF : ORA.w #$2400 : STA $7EC75E
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; ; ; The tile index for the second arrow digit
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; ; LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC760
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; ; LDA.w #$007F : STA $05
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; ; Load number of Keys Link has
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; LDA $7EF36F : AND.w #$00FF : CMP.w #$00FF : BEQ .noKeys
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; JSR HexToDecimal
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; .noKeys
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; REP #$30
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; ; The key digit, which is optionally drawn.
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; ; Also check to see if the key spot is blank
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; LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC764
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; CMP.w #$247F : BNE .dontBlankKeyIcon
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; ; If the key digit is blank, also blank out the key icon.
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; STA $7EC724
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; .dontBlankKeyIcon
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; SEP #$30
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PLB
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RTL
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; check how much magic power the player has at the moment (ranges from 0 to 0x7F)
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; X = ((MP & 0xFF)) + 7) & 0xFFF8)
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LDA $7EF36E : AND.w #$00FF : ADC.w #$0007 : AND.w #$FFF8 : TAX
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; these four writes draw the magic power bar based on how much MP you have
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LDA MagicTilemap+0, X : STA $7EC746
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LDA MagicTilemap+2, X : STA $7EC786
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LDA MagicTilemap+4, X : STA $7EC7C6
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LDA MagicTilemap+6, X : STA $7EC806
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; Load how many rupees the player has
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LDA $7EF362
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JSR HexToDecimal
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REP #$30
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; The tile index for the first rupee digit
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LDA $03 : AND.w #$00FF : ORA.w #$2400 : STA $7EC750
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; The tile index for the second rupee digit
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LDA $04 : AND.w #$00FF : ORA.w #$2400 : STA $7EC752
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; The tile index for the third rupee digit
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LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC754
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; Number of bombs Link has.
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LDA $7EF343 : AND.w #$00FF
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JSR HexToDecimal
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REP #$30
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; The tile index for the first bomb digit
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LDA $04 : AND.w #$00FF : ORA.w #$2400 : STA $7EC758
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; The tile index for the second bomb digit
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LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC75A
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; Number of Arrows Link has.
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LDA $7EF377 : AND.w #$00FF
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; converts hex to up to 3 decimal digits
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JSR HexToDecimal
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REP #$30
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; The tile index for the first arrow digit
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LDA $04 : AND.w #$00FF : ORA.w #$2400 : STA $7EC75E
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; The tile index for the second arrow digit
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LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC760
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LDA.w #$007F : STA $05
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; Load number of Keys Link has
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LDA $7EF36F : AND.w #$00FF : CMP.w #$00FF : BEQ .noKeys
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JSR HexToDecimal
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.noKeys
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REP #$30
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; The key digit, which is optionally drawn.
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; Also check to see if the key spot is blank
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LDA $05 : AND.w #$00FF : ORA.w #$2400 : STA $7EC764
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CMP.w #$247F : BNE .dontBlankKeyIcon
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; If the key digit is blank, also blank out the key icon.
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STA $7EC724
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.dontBlankKeyIcon
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SEP #$30
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RTL
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}
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; ==============================================================================
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@@ -189,6 +194,7 @@ HudItems:
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Hud_UpdateItemBox:
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{
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REP #$30
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LDA.w $0202
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ASL : TAX
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LDY.w HudItems-2, X
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@@ -197,12 +203,94 @@ Hud_UpdateItemBox:
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LDA.w $0002,Y : STA.l $7EC77A
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LDA.w $0004,Y : STA.l $7EC7B8
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LDA.w $0006,Y : STA.l $7EC7BA
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SEP #$30
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RTS
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}
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; ==============================================================================
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Vanilla_UpdateItemBox:
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{
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SEP #$30
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; Dost thou haveth the the bow?
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LDA $7EF340 : BEQ .havethNoBow
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; Dost thou haveth the silver arrows?
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; (okay I'll stop soon)
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CMP.b #$03 : BCC .havethNoSilverArrows
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; Draw the arrow guage icon as silver rather than normal wood arrows.
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LDA.b #$86 : STA $7EC71E
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LDA.b #$24 : STA $7EC71F
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LDA.b #$87 : STA $7EC720
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LDA.b #$24 : STA $7EC721
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LDX.b #$04
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; check how many arrows the player has
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LDA $7EF377 : BNE .drawBowItemIcon
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LDX.b #$03
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BRA .drawBowItemIcon
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.havethNoSilverArrows
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LDX.b #$02
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LDA $7EF377 : BNE .drawBowItemIcon
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LDX.b #$01
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.drawBowItemIcon
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; values of X correspond to how the icon will end up drawn:
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; 0x01 - normal bow with no arrows
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; 0x02 - normal bow with arrows
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; 0x03 - silver bow with no silver arrows
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; 0x04 - silver bow with silver arrows
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TXA : STA $7EF340
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.havethNoBow
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REP #$30
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LDX $0202 : BEQ .noEquippedItem
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LDA $7EF33F, X : AND.w #$00FF
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CPX.w #$0004 : BNE .bombsNotEquipped
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LDA.w #$0001
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.bombsNotEquipped
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CPX.w #$0010 : BNE .bottleNotEquipped
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TXY : TAX : LDA $7EF35B, X : AND.w #$00FF : TYX
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.bottleNotEquipped
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STA $02
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TXA : DEC A : ASL A : TAX
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LDA $FA93, X : STA $04
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LDA $02 : ASL #3 : TAY
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; These addresses form the item box graphics.
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LDA ($04), Y : STA $7EC74A : INY #2
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LDA ($04), Y : STA $7EC74C : INY #2
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LDA ($04), Y : STA $7EC78A : INY #2
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LDA ($04), Y : STA $7EC78C : INY #2
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.noEquippedItem
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RTS
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}
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; ==============================================================================
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HUD_UpdateHearts:
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{
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@@ -255,7 +343,7 @@ HUD_UpdateHearts:
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; if not, we have to move down one tile in the tilemap
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LDX.w #$0000
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LDA $07 : ADC #$0040 : STA $07
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LDA $07 : ADC.w #$0040 : STA $07
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.noLineChange
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@@ -264,6 +352,8 @@ HUD_UpdateHearts:
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RTS
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}
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; ==============================================================================
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MagicTilemap:
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dw $3CF5, $3CF5, $3CF5, $3CF5
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dw $3CF5, $3CF5, $3CF5, $3C5F
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@@ -283,6 +373,8 @@ MagicTilemap:
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dw $3C4D, $3C5E, $3C5E, $3C5E
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dw $3C4E, $3C5E, $3C5E, $3C5E
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; ==============================================================================
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HexToDecimal:
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{
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; This apparently is a hex to decimal converter for use with displaying numbers
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@@ -342,4 +434,4 @@ HexToDecimal:
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DEX : BPL .setNextDigitTile
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RTS
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}
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}
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