Lua Programming Help Thread

Zitat:

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Zitat von cools

I need some help... I got some music files to loop forever and it works, the only problem is that I can run it along side my game. Ill post the code for the music, but not the code ( as it is HUGE )


Song Code:

Code:

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Song = {}
Song[1] = ("Songs/Why.it")
Song[2] = ("Songs/monopoly2.it")
Song[3] = ("Songs/compare1.it")

pad = Controls.read()

for i=1, 9999 do

if i==1 then Music.playFile(Song[i])
Music.volume(128)
screen.waitVblankStart(9540)
i=i+1
end

if i==2 then Music.playFile(Song[i])
Music.volume(128)
screen.waitVblankStart(11460)
i=i+1
end

if i==3 then Music.playFile(Song[i])
Music.volume(128)
screen.waitVblankStart(13500)
i=i-2
end
end

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So what exactly is your problem? That you cant run it along side your game? Also i dont understand your code. You make it loop 9999 times eventhough there are only three songs. And you make them play right aftereachother. And also you pause the game while you play your music. So i assume this is the begin screen where you show who made it and stuff?

I've encountered a little problem. As you can see in my code, I want the 'highlight.png' image to slide or hop to the left and right by using the left and right buttons. The only problem is, I only want the picture to go to the next 'state' upon pressing the key, but not sliding. So if I press the button once, I want it to go shift 10 pixxels, and when I press it again, it has to do another step.

Code:

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highlight = Image.load("images/highlight.png")
background = Image.load("images/background.png")
x = 4
y = 87
while true do

        screen:blit(0, 0, background, 0, 0, background:width(), background:height(), false)
        screen:blit(x,y,highlight,0,0, highlight:width(), highlight:height(), true)
        screen.waitVblankStart()
        screen.flip()

        pad = Controls.read()

          if pad:right() then
                      x = x + 10
          elseif pad:left() then
                      x = x - 10
          end
end

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Thanks in advance

You're not telling the image to move, you're just telling to make x a bigger number...
I'm not quite sure how you would put it though...

Actually, the picture does move, hence the line:

screen:blit(x,y,highlight ,0,0, highlight:width(), highlight:height(), true)

first eliminate the screen wait vblanks start and put that at the end preceeded by a screen flip, then put oldpad = controls.read just after your pad = controls.read thing

say something like this:

while true do

screen:blit(0, 0, background, 0, 0, background:width(), background:height(), false)
screen:blit(x,y,highlight ,0,0, highlight:width(), highlight:height(), true)
screen.flip()

pad = Controls.read()
oldpad = Controls.read()
if pad:right() and pad ~= oldpad then
x = x + 10
oldpad = pad
elseif pad:left() and pad ~= oldpad then
x = x - 10
oldpad = pad
end

screen.waitVblankStart()
screen.flip()
end

Hmm, that one doesn't seem to work. It's doesn't shift and the screen flashes like a madman. I guess the pad and oldpad variables are colliding.

Zitat:

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Zitat von Altair

So what exactly is your problem? That you cant run it along side your game? Also i dont understand your code. You make it loop 9999 times eventhough there are only three songs. And you make them play right aftereachother. And also you pause the game while you play your music. So i assume this is the begin screen where you show who made it and stuff?

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The songs play right after each other without the loop. The loop is there so the songs will play [one after another] 9999 times ( so for a long time ). There is no need to have it pause in game, it needs to be playing as soon as the game starts, but not in the menus.

or if you find a button you don't have to use and youve tried everything to quit do this:

go into the script and put the following code at the bottom before the last end:

if pad:triangle() then break
end

thats it although if it isn't triangle then heres all the buttons possible:
pad:cross()
pad:triangle()
pad:circle()
pad:square()
pad:r()
pad:l()
pad:left()
pad:right()
pad:up()
pad:down()

i believe thats all of them

edit: opps on last page was answering discofever's question

get rid of the first screen.flip(), so its like this:

screen:blit(0, 0, background, 0, 0, background:width(), background:height(), false)
screen:blit(x,y,highlight ,0,0, highlight:width(), highlight:height(), true)

pad = Controls.read()
oldpad = Controls.read()
if pad:right() and pad ~= oldpad then
x = x + 10
oldpad = pad
elseif pad:left() and pad ~= oldpad then
x = x - 10
oldpad = pad
end

screen.waitVblankStart()
screen.flip()
end

NVRMIND but at line 30 i get that retarded "loop in gettable' error. This is the line of the error.

Code:

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if stick.x>480 then

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