Lua Programming Help Thread

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Zitat von Greenskull

can someone give an example of how to make a 3 picture smilie animation? I want him to talk.

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Zitat von youresam

Can anyone get the voice:playing() function working?

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ok i'll kill two birds with one stone!:

Code:

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sounds = {}
sounds[1] = Sound.load("sound1.wav")
sounds[2] = Sound.load("sound2.wav")
sounds[3] = Sound.load("sound3.wav")

smilies = {}
smilies[1] = Image.load("smilie1.png")
smilies[2] = Image.load("smilie2.png")
smilies[3] = Image.load("smilie3.png")

timer = Timer.new()

while true do

        timer:start()

        if timer:time() > 0 and timer:time() <= 1000 then
                screen:blit(50, 50, smilies[1])
                sound = sounds[1]
                if not sound:playing() then voice = sound:play() end
        elseif timer:time() > 1000 and timer:time() <= 2000 then
                screen:blit(50, 50, smilies[2])
                sound = sounds[2]
                if not sound:playing() then voice = sound:play() end
        elseif timer:time() > 2000 and timer:time() <= 3000 then
                screen:blit(50, 50, smilies[3])
                sound = sounds[3]
                if not sound:playing() then voice = sound:play() end
        elseif timer:time() > 3000 then
                timer:stop()
                timer:reset()
        end

        screen.flip()
        screen.waitVblankStart()
end

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Add or remove images/sounds as needed! Adjust the timer:time()'s to the lengths of the wav files in milliseconds! HTH!~

Then ill take down the last one :P

@Mr.Game
Usae different x/y coordinates for your projectile and your playercharacter. Lets say x and y for the player and xp and yp for your projectile.

Code:

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if pad:cross() then
xp=x
yp=y
shoot = 1
end

if shoot==1 then
xp=xp+5                    -- 5 is the speed so if you want it to go faster take a bigger number
end

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This is only for one bullet though and if you press cross again while its not yet gone then it will "jump". But this should give you an idea.
You should check PSPMillionair's tutorials. Theres also one about multiple projectiles.

damn, i was gonna answer that one. And it was ALMOST identicle!!

By the way you'll catch up with me post wise cos i wont be on much till 15th April!!!!!!!!

whaaaaa, racing and moving house, im 13 lol, my dad races not me!

I Seen a tutorial once and it told me something about
the oldpad function, i wanna use the function cause
everytime i press "X" at the menu it will loop very fast...
Please help lol.

ok thx Altair ;)

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Zitat von c5cha7

I Seen a tutorial once and it told me something about
the oldpad function, i wanna use the function cause
everytime i press "X" at the menu it will loop very fast...
Please help lol.

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Ill help u out, check ur PMs

Zitat:

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Zitat von califrag

ok i'll kill two birds with one stone!:

Code:

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sounds = {}
sounds[1] = Sound.load("sound1.wav")
sounds[2] = Sound.load("sound2.wav")
sounds[3] = Sound.load("sound3.wav")

smilies = {}
smilies[1] = Image.load("smilie1.png")
smilies[2] = Image.load("smilie2.png")
smilies[3] = Image.load("smilie3.png")

timer = Timer.new()

while true do

        timer:start()

        if timer:time() > 0 and timer:time() <= 1000 then
                screen:blit(50, 50, smilies[1])
                sound = sounds[1]
                if not sound:playing() then voice = sound:play() end
        elseif timer:time() > 1000 and timer:time() <= 2000 then
                screen:blit(50, 50, smilies[2])
                sound = sounds[2]
                if not sound:playing() then voice = sound:play() end
        elseif timer:time() > 2000 and timer:time() <= 3000 then
                screen:blit(50, 50, smilies[3])
                sound = sounds[3]
                if not sound:playing() then voice = sound:play() end
        elseif timer:time() > 3000 then
                timer:stop()
                timer:reset()
        end

        screen.flip()
        screen.waitVblankStart()
end

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Add or remove images/sounds as needed! Adjust the timer:time()'s to the lengths of the wav files in milliseconds! HTH!~

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Have you tried that code? I'm not asking how to USE IT, but why it gave me an error when I called it.

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Zitat von TheEmulatorGuy

Well, if you want each frame of the smilie to last for 8 milliseconds, you'd do this:

[HTML]
frame_1 = Image.load("frame_1.png")
frame_2 = Image.load("frame_2.png")
frame_3 = Image.load("frame_3.png")
screen:clear()

while (true) do
--Put image to memory and flip it to screen
screen:blit(0, 0, frame_1)
screen.flip()
--Keep frame showing for 8 milliseconds
screen.WaitVblankStart(8)
--Clear screen to start over
screen:clear()

screen:blit(0, 0, frame_2)
screen.flip()
screen.WaitVblankStart(8)
screen:clear()

screen:blit(0, 0, frame_3)
screen.flip()
screen.WaitVblankStart(8)
screen:clear()
end
[/HTML]

There's probably an error in there somewhere, but that should be a fair idea of how you do it.

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ok cool. how do you make it loop?

eeehhm ... it is in a while loop so it loops already

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Zitat von youresam

Have you tried that code? I'm not asking how to USE IT, but why it gave me an error when I called it.

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make sure your wav is mono not stereo. also i think it has to be less than 44khz