Credits:

Defa

How To

Add the following routine in free space and note the offset:

    push  {lr}
    ldr   r0, flag1
    ldr   r3, FlagGet
    bl    linker
    cmp   r0, #0
    beq   back
    ldr   r0, flag2
    ldr   r3, FlagGet
    bl    linker
    b     end2
back:
    ldr   r2, =0x020370C0 @var4
    ldrh  r0, [r2, #0]
    cmp   r0, #10
    bhi   end
    ldr   r3, =0x081474D7 @back after hook
    bx    r3
end:
    mov   r0, #1
end2:
    pop   {r1}
    bx    r1
linker: bx r3
FlagGet: .word 0x0806E6D1
flag1: .word 0x00000001
flag2: .word 0x00000002

Change 1474CC from 00 B5 07 4A 10 88 0A 28 to 00 48 00 47 <offset+1>

Before special DoSeagallopFerryScene, setflag 0x1 to override the automatic direction

Then, clearflag 0x2 to set direction to west or setflag 0x2 to set direction to east

Happy Hacking!