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https://github.com/bryanthaboi/gen1recomp
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bryanthaboi
99 lines
4.1 KiB
Lua
99 lines
4.1 KiB
Lua
-- The caller-ID box an incoming phone call puts across the top of the screen:
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-- Phone_TextboxWithName (pokegold engine/phone/phone.asm:582), which is
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--
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-- Phone_TextboxWithName:
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-- push bc
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-- call Phone_CallerTextbox
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-- hlcoord 1, 1
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-- ld [hl], '☎'
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-- inc hl
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-- inc hl
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-- ld d, h
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-- ld e, l
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-- pop bc
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-- call GetCallerClassAndName
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-- ret
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--
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-- Phone_CallerTextbox:
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-- hlcoord 0, 0
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-- ld b, 2
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-- ld c, SCREEN_WIDTH - 2
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-- call Textbox
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-- ret
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--
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-- so the box is the top four rows of the screen (b/c are INTERIOR rows and
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-- columns, hence 20x4 on screen), the phone icon sits at (1,1), and
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-- GetCallerClassAndName places the caller's name from (3,1) -- hl after the
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-- two `inc hl` -- with a ':' written straight after it. A trainer contact
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-- then gets its class name a further `SCREEN_WIDTH + 3` on, which is (6,2);
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-- a non-trainer (Mom, ELM, the wrong number) stops at the colon and has no
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-- second line at all (:635-666).
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--
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-- WHEN IT IS UP. RingTwice_StartCall (:458-469) flashes the box on and off
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-- against Phone_Wait20Frames while SFX_CALL plays, and nothing ever erases it
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-- afterwards: it was written straight into wTilemap rather than through a
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-- window, so CloseText restores it along with everything else under the
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-- speech box and it survives until the overworld redraws its tilemap at the
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-- end of the call. This port has no twenty-frame flash to hang the middle
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-- beats on (src/core/gen2/PhoneRing.lua explains why: its text box holds for
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-- A where the cart's PrintText returns), so the box goes UP with the ring and
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-- stays for the whole call, which is the state the player actually reads.
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--
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-- A state, not a widget: it rides src/core/StateStack.lua UNDER the call's
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-- text pages, so those draw over it exactly as the cart's speech box draws
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-- over the tilemap. Deliberately no `update` -- src/core/Game2.lua's fixed
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-- step hands the tick to the TOP state and returns, so an update here would
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-- stop the world (and with it the script VM that is running the call) the
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-- moment the last text page popped.
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--
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-- Pushed and popped by the two callasm handlers in src/script/gen2/CallAsm.lua
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-- that src/core/gen2/PhoneRing.lua's rows name.
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local Chrome = require("src.ui.gen2.Chrome")
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local PhoneRing = require("src.core.gen2.PhoneRing")
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local CallerBox = {}
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CallerBox.__index = CallerBox
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-- Phone_CallerTextbox's own coordinates, kept as names so the two draw calls
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-- below read like the ASM they came from.
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local BOX_X, BOX_Y = 0, 0
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local BOX_INTERIOR_W, BOX_INTERIOR_H = 18, 2
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local ICON_X, ICON_Y = 1, 1
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local NAME_X, NAME_Y = 3, 1
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local CLASS_X, CLASS_Y = 6, 2
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-- charmap.asm:88 `charmap "☎", $62`. The glyph itself is
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-- PokegearPhoneIconGFX, which _LoadFontsExtra copies over vTiles2 tile $62
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-- (engine/gfx/load_font.asm:12-15) on top of the three bold letters FontExtra
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-- ships there; a cache whose font_extra page still carries FontExtra's own
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-- $62 draws a bold C in its place, which is an extractor gap and not a
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-- layout one, so the sequence is written out here the way the cart writes it.
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local PHONE_ICON = "\xe2\x98\x8e"
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-- `name` / `className` are what src/core/gen2/Phone.lua contactName answers:
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-- the caller's name, and the trainer class under it or nil for a non-trainer.
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function CallerBox.new(name, className)
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return setmetatable({
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name = name or "",
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className = className,
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-- The overworld has to keep drawing behind it (this is a strip across the
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-- top, not a page), so the stack must not treat it as a base.
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isOpaque = false,
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}, CallerBox)
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end
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function CallerBox:draw()
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Chrome.textbox(BOX_X, BOX_Y, BOX_INTERIOR_W, BOX_INTERIOR_H)
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Chrome.print(PHONE_ICON, ICON_X, ICON_Y)
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-- GetCallerName places the name and then writes ':' into the cell the
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-- string ended on, which is what PhoneRing.callerId already composes for
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-- the ring page -- same colon, same source, so the two can never drift.
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Chrome.print(PhoneRing.callerId(self.name), NAME_X, NAME_Y)
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if self.className and self.className ~= "" then
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Chrome.print(self.className, CLASS_X, CLASS_Y)
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end
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end
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return CallerBox
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