xynn_fireflies_downs_4_rewrite.lua

local hw= _screen.w * .5
local low_pos= _screen.h + 16

local fly_count= 200
local flies= {}
local curr_fly= 1

local function unzip_fly(offset)
	local b = GAMESTATE:GetSongBeat()
	if (b >= 224 and b <= 288) or b >= 422 then
		local x1 = math.random()*hw + (hw * offset)
		local x2 = math.random()*hw + (hw * offset)
		local y1, y2
		if math.random() < 0.5 then
			y1 = -16
			y2 = low_pos
		else
			y1 = low_pos
			y2 = -16
		end
		flies[curr_fly]:playcommand("Activate", {x1= x1, x2= x2, y1= y1, y2= y2})
		curr_fly= curr_fly + 1
		if curr_fly > fly_count then
			curr_fly= 1
		end
	end
end

local args= {
  Def.Quad{
    Name= "xtl_actor_jej",
		InitCommand= function(self)
			self:sleep(1000)
		end,
		StepP1MessageCommand= function(self)
			unzip_fly(0)
		end,
		StepP2MessageCommand= function(self)
			unzip_fly(1)
		end,
  },
}
for id= 1, fly_count do
	args[#args+1]= Def.Sprite{
		Name= "fly" .. id,
		Texture= "firefly.png",
		InitCommand= function(self)
			flies[id]= self
			self:hibernate(math.huge)
		end,
		ActivateCommand= function(self, params)
			self:hibernate(0):xy(params.x1, params.y1):linear(1)
				:xy(params.x2, params.y2)
		end,
  }
end

return Def.ActorFrame(args)