pokecrystal/home/print_text.asm

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2018-06-24 14:09:41 +00:00
PrintLetterDelay::
; Wait before printing the next letter.
; The text speed setting in wOptions is actually a frame count:
; fast: 1 frame
; mid: 3 frames
; slow: 5 frames
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; wTextboxFlags[!0] and A or B override text speed with a one-frame delay.
; wOptions[4] and wTextboxFlags[!1] disable the delay.
ld a, [wOptions]
bit NO_TEXT_SCROLL, a
ret nz
; non-scrolling text?
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ld a, [wTextboxFlags]
bit NO_TEXT_DELAY_F, a
ret z
push hl
push de
push bc
ld hl, hOAMUpdate
ld a, [hl]
push af
; orginally turned oam update off...
; ld a, 1
ld [hl], a
; force fast scroll?
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ld a, [wTextboxFlags]
bit FAST_TEXT_DELAY_F, a
jr z, .fast
; text speed
ld a, [wOptions]
and %111
jr .updatedelay
.fast
ld a, TEXT_DELAY_FAST
.updatedelay
ld [wTextDelayFrames], a
.checkjoypad
call GetJoypad
; input override
ld a, [wDisableTextAcceleration]
and a
jr nz, .wait
; Wait one frame if holding A or B.
ldh a, [hJoyDown]
bit A_BUTTON_F, a
jr z, .checkb
jr .delay
.checkb
bit B_BUTTON_F, a
jr z, .wait
.delay
call DelayFrame
jr .end
.wait
ld a, [wTextDelayFrames]
and a
jr nz, .checkjoypad
.end
pop af
ldh [hOAMUpdate], a
pop bc
pop de
pop hl
ret
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CopyDataUntil::
; Copy [hl .. bc) to de.
; In other words, the source data is
; from hl up to but not including bc,
; and the destination is de.
ld a, [hli]
ld [de], a
inc de
ld a, h
cp b
jr nz, CopyDataUntil
ld a, l
cp c
jr nz, CopyDataUntil
ret
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PrintNum::
homecall _PrintNum
ret
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MobilePrintNum::
homecall _MobilePrintNum
ret
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FarPrintText::
ldh [hBuffer], a
ldh a, [hROMBank]
push af
ldh a, [hBuffer]
rst Bankswitch
call PrintText
pop af
rst Bankswitch
ret