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https://github.com/bryanthaboi/gen1recomp.git
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bryanthaboi
77 lines
2.9 KiB
Lua
77 lines
2.9 KiB
Lua
-- Generic bordered list menu with the blinking ▶ cursor.
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-- items: { { label=..., onSelect=function }, ... }
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-- Pops itself on B (unless cancelable=false); also on START only when
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-- opts.startCloses is set -- pokered's wMenuWatchedKeys mask varies per
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-- menu and only the start menu's adds PAD_START.
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local Font = require("src.render.Font")
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local Theme = require("src.ui.Theme")
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local Menu = {}
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Menu.__index = Menu
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function Menu.new(game, items, opts)
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local self = setmetatable({}, Menu)
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opts = opts or {}
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self.game = game
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self.items = items
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self.index = 1
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self.tx = opts.tx or 10
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self.ty = opts.ty or 0
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self.tw = opts.tw or 10
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self.th = opts.th or (#items * 2 + 2)
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self.cancelable = opts.cancelable ~= false
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-- Whether START closes the menu. In pokered a menu responds only to the
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-- keys in its wMenuWatchedKeys mask; the common PAD_A | PAD_B (and the
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-- list menu's PAD_A | PAD_B | PAD_SELECT) masks leave START unwatched, so
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-- only menus whose real mask includes PAD_START -- the start menu
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-- (engine/menus/draw_start_menu.asm) -- opt in here.
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self.startCloses = opts.startCloses or false
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self.onCancel = opts.onCancel
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-- BIT_NO_MENU_BUTTON_SOUND (wMiscFlags): the PC session runs its
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-- menus silent (home/window.asm HandleMenuInput_)
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self.noSound = opts.noSound or false
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return self
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end
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function Menu:update(dt)
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local input = self.game.input
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if input:wasPressed("up") then
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self.index = self.index > 1 and self.index - 1 or #self.items
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elseif input:wasPressed("down") then
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self.index = self.index < #self.items and self.index + 1 or 1
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elseif input:wasPressed("a") then
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-- HandleMenuInput_ (home/window.asm): SFX_PRESS_AB on every A press
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if not self.noSound then
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require("src.core.Sound").play(self.game.data, "Press_AB")
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end
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local item = self.items[self.index]
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-- keepOpen entries run without closing the menu (e.g. the
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-- Pokédex CRY option keeps the side menu up)
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if not item.keepOpen then self.game.stack:pop() end
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if item.onSelect then item.onSelect() end
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elseif self.cancelable and (input:wasPressed("b")
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or (self.startCloses and input:wasPressed("start"))) then
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-- HandleMenuInput_ returns for any watched key, but only replays
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-- SFX_PRESS_AB for the PAD_A | PAD_B branch -- so B beeps and START
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-- (when watched, e.g. the start menu) closes silently.
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if input:wasPressed("b") and not self.noSound then
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require("src.core.Sound").play(self.game.data, "Press_AB")
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end
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self.game.stack:pop()
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if self.onCancel then self.onCancel() end
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end
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end
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function Menu:draw()
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Font.drawBox(self.tx, self.ty, self.tw, self.th)
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love.graphics.setColor(0, 0, 0, 1)
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for i, item in ipairs(self.items) do
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Font.draw(item.label, (self.tx + 2) * 8, (self.ty + i * 2 - 1) * 8)
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end
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Font.drawCode(Theme.cursor, (self.tx + 1) * 8, (self.ty + self.index * 2 - 1) * 8)
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love.graphics.setColor(1, 1, 1, 1)
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end
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return Menu
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