Add collect items with sword

Items/book_of_secrets.asm

@@ -57,6 +57,7 @@ LinkItem_SecretsBook:
   JSL $099F91			  ; at least execute original code
   RTL
 }
+pushpc
 
 
 ; =============================================================================

Items/sword_collect.asm

@@ -0,0 +1,77 @@
+; Collect items with sword
+org $86F725
+ JSL collectSword
+
+pullpc
+collectSword:
+{
+  ADC #$00
+  STA $09
+  LDA $79
+  BEQ $01
+  RTL
+
+  LDA $0E20, x
+  SEC
+  SBC #$D8
+  BCS $01
+  RTL
+
+  LDA $0E20, x
+  SEC
+  SBC #$E7
+  BCC $01
+  RTL
+
+  PHY  
+  LDY $3C
+  BPL $02
+  PLY  
+  RTL
+
+  LDA $F571, y
+  BEQ $02
+  PLY
+  RTL
+
+  PHX  
+  LDA $2F
+  ASL A
+  ASL A
+  ASL A
+  CLC  
+  ADC $3C
+  TAX
+  INX  
+  LDY #$00
+  LDA $45
+  CLC
+  ADC $F46D, x
+  BPL $01
+  DEY  
+  CLC
+  ADC $22
+  STA $00
+  TYA
+  ADC $23
+  STA $08
+  LDY #$00
+  LDA $44
+  CLC
+  ADC $F4EF, x
+  BPL $01
+  DEY
+  CLC  
+  ADC $20
+  STA $01
+  TYA
+  ADC $21
+  STA $09
+  LDA $F4AE, x
+  STA $02
+  LDA $F530, x
+  STA $03
+  PLX
+  PLY  
+  RTL
+}