PyTaikoGreen/Scripts/background/bg_collabs/funassyi.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 Footer            = require("background/bg_objects/footer")
local Dancer            = require("background/bg_objects/dancer")
local RendaController   = require("background/bg_objects/renda")
local ChibiController   = require("background/bg_objects/chibi")

local COLLAB_PATH       = "background/collab/funassyi"
local MAX_DANCERS       = 5

-- BGFever: animated slide-in using anims 16-18, then horizontal tile scroll
local FunassyiBGFever   = {}
FunassyiBGFever.__index = FunassyiBGFever

function FunassyiBGFever.new()
    local self = setmetatable({}, FunassyiBGFever)
    self.name = "bg_fever_0"
    tex.load_folder(COLLAB_PATH, "bg_fever/" .. self.name)
    self.transitioned         = false
    self.horizontal_move      = tex.get_animation(16)
    self.bg_texture_move_down = tex.get_animation(17)
    self.bg_texture_move_up   = tex.get_animation(18)
    local overlay_info        = tex.get_texture_info(self.name, "overlay")
    self.overlay_width        = overlay_info and overlay_info.width or 0
    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 FunassyiBGFever:start()
    self.bg_texture_move_down:start()
    self.bg_texture_move_up:start()
end

function FunassyiBGFever:update(current_time_ms)
    self.bg_texture_move_down:update(current_time_ms)
    self.bg_texture_move_up:update(current_time_ms)
    if self.bg_texture_move_up.is_finished and not self.transitioned then
        self.transitioned = true
        self.horizontal_move:restart()
    end
    if self.transitioned then
        self.horizontal_move:update(current_time_ms)
    end
end

function FunassyiBGFever:draw()
    local y = self.bg_texture_move_down.attribute - self.bg_texture_move_up.attribute
    tex.draw_texture(self._id_bg,      { y = y })
    tex.draw_texture(self._id_overlay, { x = -self.horizontal_move.attribute, y = y })
    tex.draw_texture(self._id_overlay, { x = self.overlay_width - self.horizontal_move.attribute, y = y })
end

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

-- Background

local FunassyiBackground = {}
FunassyiBackground.__index = FunassyiBackground

function FunassyiBackground.new(player_num, bpm)
    local self          = setmetatable({}, FunassyiBackground)
    self.donbg          = DonBG4.new(1, player_num, COLLAB_PATH)
    self.bg_normal      = BGNormal.Base.new(0, COLLAB_PATH)
    self.bg_fever       = FunassyiBGFever.new()
    self.footer         = Footer.new(COLLAB_PATH, 2)
    self.fever          = Fever.create(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
    self.last_milestone = 1
    return self
end

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

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

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

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

function FunassyiBackground:handle_balloon(player_num) self.renda:add_renda() end

function FunassyiBackground:handle_gauge(player_num, progress, is_clear, is_rainbow)
    self.donbg:set_clear(is_clear)
    if is_clear and not self.is_clear then self.bg_fever:start() end
    if is_rainbow and not self.is_rainbow then self.fever:start() end
    self.is_clear   = is_clear
    self.is_rainbow = is_rainbow

    local current_milestone
    if is_clear then
        current_milestone = MAX_DANCERS
    else
        current_milestone = math.min(MAX_DANCERS - 1, math.floor(progress * MAX_DANCERS))
    end
    if current_milestone > self.last_milestone then
        for _ = 1, current_milestone - self.last_milestone do self.dancer:add_dancer() end
        self.last_milestone = current_milestone
    elseif current_milestone < self.last_milestone then
        for _ = 1, self.last_milestone - current_milestone do self.dancer:remove_dancer() end
        self.last_milestone = current_milestone
    end
end

function FunassyiBackground: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()
    self.footer:draw()
    if self.is_rainbow then self.fever:draw() end
    self.chibi:draw()
end

function FunassyiBackground:draw_fore() end

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

return FunassyiBackground