shakesoda is a level 1280 galaxy mage [ask questions here]

[madmijk]

I wanna make some BGanimations (random BGanimations for in the BGanimations folder in the root of the Stepmania folder, not specifically for a song), and I don't know how to load the song's background in LUA scripts. I've already found GetSongBackground and LoadSongBackground, but how do I put that in the script? Or is it done another way? The ways I tried always resulted in a black background when I hit the first notes...

[FSX]

Def.Sprite{InitCommand=cmd(LoadFromCurrentSongBackground;)}

That's the basic element to this.

[shakesoda]

You need to call GetSongBackground() on a Song object, which you generally get from GAMESTATE. The magic incantation is GAMESTATE:GetCurrentSong():GetSongBackground(). oops. GetSongBackground() is global, you'd use it like so: LoadActor(GetSongBackground()). The other option (no built in fallback) is GAMESTATE:GetCurrentSong():GetBackgroundPath() as the argument for LoadActor.

Here's some examples that should work (loads image and makes it invisible first thing, then fades in when a judgment happens)

local container = Def.ActorFrame {}
local background = LoadActor(GetSongBackground())

function background:InitCommand(params)
    self:diffusealpha(0.0)
end

function background:JudgmentMessageCommand(params)
    self:linear(0.5)
    self:diffusealpha(1.0)
end

table.insert(container, background)

return container

(same thing, written another way)

local t = Def.ActorFrame {}

t[#t+1] = LoadActor(GetSongBackground())..{
    InitCommand=cmd(diffusealpha,0),
    JudgmentMessageCommand=cmd(linear,0.5;diffusealpha,1.0)
}

return t

or the simplest example:

return LoadActor (GetSongBackground())..{
    InitCommand=cmd(rainbow)
}

Make sure the default.lua file is in a folder, or it will most likely not work at all.

EDIT: my lua-fu is bad, fsx has informed me that GetSongBackground() is a global function, I was thinking GAMESTATE:GetCurrentSong():GetBackgroundPath().

Plugging the different method in should work just the same unless the background image is missing.

Also note, FSX's method using LoadFromCurrentSongBackground might work if this stuff doesn't.

[madmijk]

Also note, FSX's method using LoadFromCurrentSongBackground might work if this stuff doesn't.

Nothing that you coded worked, unfortunately. But I did this and it worked:

local t = Def.ActorFrame{
	LoadActor(GAMESTATE:GetCurrentSong():GetBackgroundPath())..{
		OnCommand=cmd(Center;rainbow)
	};
	LoadActor("2")..{
		OnCommand=cmd(Center;pulse;effectclock,'beat');
	};
};

return t;

And thanks for the quick responses, btw! ^^

[madmijk]

Another question: how do I get the song's background (in the BGanimation) cropped like when it's loaded without BGanimation? It always gets bigger than before.

[FSX]

return LoadActorWithParams ("/BackgroundEffects/StretchNormal.lua",{File1=GAMESTATE:GetCurrentSong():GetBackgroundPath(),Color1=color "#FFFFFF"})..{     
InitCommand=cmd(rainbow) 
}

This loads the background with the normal BG translation applied to it.

[madmijk]

Thank you so much!

[shakesoda]

Nothing that you coded worked, unfortunately. But I did this and it worked:

local t = Def.ActorFrame{
	LoadActor(GAMESTATE:GetCurrentSong():GetBackgroundPath())..{
		OnCommand=cmd(Center;rainbow)
	};
	LoadActor("2")..{
		OnCommand=cmd(Center;pulse;effectclock,'beat');
	};
};

return t;

And thanks for the quick responses, btw! ^^

None of them worked huh, I would have tested if I wasn't at work. Was it just GetSongBackground that wasn't working?

(p.s. you don't need semicolons in lua outside of cmd, just make sure to put commas in your tables between the items)

[madmijk]

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