rain.asm

//------------------------------------------------------------//
// Recalculate rain                                           //
//------------------------------------------------------------//
.func recalculateRainForHole
    addiu   sp, sp, 0xFFE0
    sw      ra, 0x001C(sp)
    lw      v0, currentHoleNumber
    beq     v0, r0, @@setNoRain
    li      t0, 3
    beq     v1, t0, @@setNoRain
    li      a0, recalculateRainForHoleFlag
    jal     getHackEnabledFlag
    nop
    beq     v0, r0, @@recalculateRainForHoleEnd
    nop
@@recalculate:
    jal     getRandomShort
    nop
    mtc1    v0, f0
    lui     at, 0x42C8
    cvt.s.w f6, f0
    nop
    lui     a0, 0x4700
    addiu   a0, a0, 0xFE00
    mtc1    at, f2
    mtc1    a0, f4
    nop
    lw      v0, currentCourseNumber
    sll     v0, v0, 0x2
    lui     a1, hi(modTable + 1)
    addu    a1, a1, v0
    div.s   f8, f2, f4
    mul.s   f0, f8, f6
    cvt.w.s f0, f0
    lb      a2, lo(modTable + 1)(a1)
    mfc1    v0, f0
    nop
    slt     v1, v0, a2
    sw      v1, weatherRainFlag
    b       @@recalculateRainForHoleEnd
    li      v0, 1
@@setNoRain:
    sw      r0, weatherRainFlag
    li      v0, 1
@@recalculateRainForHoleEnd:
    lw      ra, 0x001C(sp)
    addiu   sp, sp, 0x0020
    jr      ra
    nop
.endfunc