YataiDONNijiiro/Scripts/background/bg_collabs/buttoburst.lua

-- YataiDON-HSS override of PyTaikoGreen/background/bg_collabs/buttoburst.lua
-- (ROUND 52, r52-lua-divergence-fixes): byte-copy of the parent plus the reference
-- dance_b_* dancer-count model, the fever falling edge, and the renda
-- drumroll-only rule -- see collab_dancer_model.lua / background.lua.
local DonBG4          = require("background/bg_objects/donbg/4")
local BGNormal        = require("background/bg_objects/bg_normal")
local Fever           = require("background/bg_objects/fever")
local Dancer          = require("background/bg_objects/dancer")
local RendaController = require("background/bg_objects/renda")
local ChibiController = require("background/bg_objects/chibi")
local DancerModel     = require("background/bg_objects/collab_dancer_model")

local COLLAB_PATH     = "background/collab/buttoburst"
local MAX_DANCERS     = 4

-- BGFever: instant-transition, draws background + overlay
local ButtoBGFever    = {}
ButtoBGFever.__index  = ButtoBGFever

function ButtoBGFever.new()
    local self = setmetatable({}, ButtoBGFever)
    self.name = "bg_fever_0"
    tex.load_folder(COLLAB_PATH, "bg_fever/" .. self.name)
    self.transitioned = false
    self._id_bg      = tex.get_id(self.name, "background") or 0
    self._id_overlay = tex.get_id(self.name, "overlay") or 0
    return self
end

function ButtoBGFever:start() self.transitioned = true end

function ButtoBGFever:update(current_time_ms) end

function ButtoBGFever:draw()
    tex.draw_texture(self._id_bg)
    tex.draw_texture(self._id_overlay)
end

function ButtoBGFever:destroy() tex.unload_folder(COLLAB_PATH, "bg_fever/" .. self.name) end

-- Background

local ButtoBackground = {}
ButtoBackground.__index = ButtoBackground

function ButtoBackground.new(player_num, bpm)
    local self          = setmetatable({}, ButtoBackground)
    self.donbg          = DonBG4.new(5, player_num, "background")
    self.bg_normal      = BGNormal.Base.new(0, COLLAB_PATH)
    self.bg_fever       = ButtoBGFever.new()
    -- ROUND 60 (r60-collab-fix-all): class Fever3, folder fever_0 -- see
    -- oshiri.lua (Fever.create(3, ...) loaded the nonexistent fever_3).
    self.fever          = Fever.Fever3.new(0, bpm, COLLAB_PATH)
    self.dancer         = Dancer.BaseDancerGroup.new(0, bpm, MAX_DANCERS, COLLAB_PATH)
    self.renda          = RendaController.new(COLLAB_PATH, 0)
    self.chibi          = ChibiController.new(bpm, COLLAB_PATH, 0)
    self.is_clear       = false
    self.is_rainbow     = false
    -- ROUND 52 (r52-lua-divergence-fixes): reference dance_b_* count model
    -- (collab_dancer_model.lua) replaces the pre-R18 milestone counter.
    self.dancer_model   = DancerModel.new(MAX_DANCERS)
    return self
end

function ButtoBackground:update(current_ms, bpm)
    self.donbg:update(current_ms)
    self.bg_fever:update(current_ms)
    self.fever:update(current_ms, bpm)
    self.dancer:update(current_ms, bpm)
    self.renda:update(current_ms)
    self.chibi:update(current_ms, bpm)
end

function ButtoBackground:handle_good(player_num) self.chibi:add_chibi(player_num, false) end

function ButtoBackground:handle_ok(player_num) self.chibi:add_chibi(player_num, false) end

function ButtoBackground:handle_bad(player_num) self.chibi:add_chibi(player_num, true) end

function ButtoBackground:handle_drumroll(player_num) self.renda:add_renda() end

-- ROUND 52: no renda on balloons/kusudama -- the reference build RendaEffect fires for
-- note kinds 6/9 (drumrolls) only; see background.lua.
function ButtoBackground:handle_balloon(player_num) end

function ButtoBackground:handle_gauge(player_num, progress, is_clear, is_rainbow, clear_progress)
    self.donbg:set_clear(is_clear)
    -- ROUND 52: both edges, re-triggerable (the reference build BgFever/FeverEffect::Process).
    if is_clear and not self.is_clear then self.bg_fever:start() end
    if not is_clear and self.is_clear and self.bg_fever.reset then self.bg_fever:reset() end
    if is_rainbow and not self.is_rainbow then self.fever:start() end
    if not is_rainbow and self.is_rainbow and self.fever.stop then self.fever:stop() end
    self.is_clear   = is_clear
    self.is_rainbow = is_rainbow

    -- ROUND 52: reference dance_b_* model, symmetric every frame.
    self.dancer_model:apply(self.dancer, progress, is_clear, clear_progress)
end

function ButtoBackground:draw_back()
    if self.is_clear then
        if not self.bg_fever.transitioned then
            self.bg_normal:draw()
            self.bg_fever:draw()
        else
            self.bg_fever:draw()
        end
    else
        self.bg_normal:draw()
    end
    self.donbg:draw()
    self.renda:draw()
    self.dancer:draw()
    -- ROUND 52: covers the exit ramp, not just the raw flag.
    if self.fever.is_visible and self.fever:is_visible() then self.fever:draw() end
    self.chibi:draw()
end

function ButtoBackground:draw_fore() end

function ButtoBackground:destroy()
    self.donbg:destroy()
    self.bg_normal:destroy()
    self.bg_fever:destroy()
    self.fever:destroy()
    self.dancer:destroy()
    self.renda:destroy()
    self.chibi:destroy()
end

return ButtoBackground