Playing random sounds

Hey thanks for the reply, i'm not really a coder so i don´t know what (#walkSound) does i just know that if i remove the # from it the sounds stop playing. About making the function before calling it, i did that, i forgot to put a "end" on the code above but on the real code it is there, so the playsteepsounds() function is outside the onSceneUpdate() function.

below is the full code

-----------------------------------------------------------------------------------
-- Maratis
-- Jules script test
-----------------------------------------------------------------------------------

-- get objects
Player = getObject("Player")
Head = getObject("Head")

dx = 0.0
dy = 0.0

-- walk var
walkSound = {} -- array
walkSound[1] = getObject("walk1")
walkSound[2] = getObject("walk2")
walkSound[3] = getObject("walk3")
soundLenght = 0.3

walkSpeed = 3.0


-- jump code
playMass = getMass(Player)
jumpSpeed = playMass * 50.0

Sound0 = getObject("JumpSound")
soundplay = 0


-- Run vars
runSpeed = 4.0


centerCursor()
mx = getAxis("MOUSE_X")
my = getAxis("MOUSE_Y")

-- scene update
function onSceneUpdate()

    setGravity({0,0,-2})

    coll = getNumCollisions(Player) -- for the jump code

    -- rotate Player (X mouse)
    rotate(Player, {0, 0, -1}, dx*100)
    
    -- rotate Head (Y mouse)
    rotate(Head, {-1, 0, 0}, dy*100, "local")    
    rotation = getRotation(Head)
    if rotation[1] > 90 then
        rotation[1] = 90
    elseif rotation[1] < -90 then
        rotation[1] = -90
    end

    setRotation(Head, rotation)
    
    -- move
    if isKeyPressed("W") then
        addCentralForce(Player, {0, walkSpeed, 0}, "local")
        playsteepsounds()
    end
    
    if isKeyPressed("S") then
        addCentralForce(Player, {0, -walkSpeed, 0}, "local")
    end
    
    if isKeyPressed("A") then
        addCentralForce(Player, {-3, 0, 0}, "local")
    end

    if isKeyPressed("D") then
        addCentralForce(Player, {3, 0, 0}, "local")
    end    
    
    -- run
    if isKeyPressed("W") and isKeyPressed("LSHIFT") then
        addCentralForce(Player, {0, runSpeed, 0}, "local")
    end
    
    -- jump
    if isKeyPressed("SPACE") then
        if (coll >= 1) then
            playmysound()
            addCentralForce(Player, {0, 0, jumpSpeed}, "local")
            print ("I jumped!!")
            else
                stopmysound()
            end
    end
    
    -- get mouse direction
    dx = getAxis("MOUSE_X") - mx
    dy = getAxis("MOUSE_Y") - my

    -- center cursor
    centerCursor()
    
    mx = getAxis("MOUSE_X")
    my = getAxis("MOUSE_Y")    
    
end

function playmysound()
       if soundplay == 0 then playSound(Sound0) end
       soundplay = 1
   end
   
function stopmysound()
       soundplay = 0
   end
   
 function playsteepsounds()
        characterSounds = math.random(#walkSound)
        playSound(walkSound[characterSounds])
    end

Also i got the array code idea from here http://forums.coronalabs.com/topic/3558 … ncomplete/

Last edited by Argoon (2013-08-22 21:35:41)

thanks man for taking the time to help me i really appreciate  it,  but unfortunately that code is not what i really want, on the full code i posted above you can see i already use something similar for the jump sound, now what i want is playing random foot steep sounds has the player walks, and i want a particular sound (audio length)  to wait for the other to stop playing before starting, i did something similar on Unity3D using arrays and someaudio.length plus waitForSeconds(someaudio) and it works very well. The problem i don't know how to convert the unity script code (not made by me btw) to a LUA counterpart or if maratis even has a audio length option.

Here is the Unity code just for example

var walkSounds : AudioClip[];
var audioStepLength = 0.3;


function Awake () {
    
    PlayStepSounds();
}

function PlayStepSounds () {
    var controller : CharacterController = GetComponent(CharacterController);

    while (true) {
        if (controller.isGrounded && controller.velocity.magnitude > 0.3) {
            audio.clip = walkSounds[Random.Range(0, walkSounds.length)];
            audio.Play();
            yield WaitForSeconds(audioStepLength);
        } else {
            yield;
        }
    }
}

Last edited by Argoon (2013-08-23 00:49:59)

Okay, I changed quite a few things to make it a bit easier. I have the sound randomizing with the press of a button, but It only randomly chooses one when game begins. If I restart the game, then it will choose a random sound again. So I will post the progress so far:

walkSound = {} -- array
walkSound[1] = getObject("walk1")
walkSound[2] = getObject("walk2")
walkSound[3] = getObject("walk3")

--This function moves the character and plays the random sound
function Walk()
    if isKeyPressed("W") then
        addCentralForce(player, {0, walkSpeed, 0}, "local")
        PlayStepSounds()
    end
end

--This is the random sound
randomSound = walkSound[math.random(1,3)]

--This function plays the random sound
function PlayStepSounds()
        playSound(randomSound)

end

function onSceneUpdate()
        randomSound = walkSound[math.random(1,3)]
    --Walk
    Walk()
   
end

EDIT: Thanks COM3D, got it to work!

added it under the onSceneUpdate() function

Last edited by Tutorial Doctor (2013-08-23 07:48:09)

Thanks Tutorial Doctor!! You are awesome. 

And thanks to you to com3D, for explaining that bit of code and helping TD, and yes i checked the Wiki before posting but didn't saw anything there that could help me, as i said i'm not really a coder, i'm a 3D modeler and i just like to dabble a little with code, but nothing very complex because as you saw i get stuck very easily, but i don't really have the habit of asking people for help, i try to find the answer myself by looking on the net. 

edit: Hum i used the code above and the sounds still play all very fast and on top of eachother, Tutorial Doctor are you sure it works well on your end?
Maybe some kind of timer will be needed to control the sounds timing just like on the Unity3D code.

Last edited by Argoon (2013-08-23 15:38:14)

Hi Argoon. Yeah, the sound plays fast on my end too60, and they overlap. Whenever you put something in the onSceneUpdate() function I believe it runs every frame the game runs. I think the Maratis games run at 60 frames per second.

I will eventually tidy up the code a bit. And I do think you could use a timer, or you could use some conditional statements, or maybe a loop? I don't know.

But Argoon, you'd be surprised at just how new I am to programming. I made on here linking to a tutorial I made for beginners, teaching how to understand computer programming.

In no time, you will have the fundamentals down well enough to dig a little deeper into LUA.

(BTW, I haven't even used lua before I came to this site only a few days ago. But Lua is the easiest Language I have used yet)

Take Care!

No Prob. If I can help with anything else, let me know. Take care.

Thanks! com3D it works!. Now i just need to found out why it only works when used only on one direction , when i use the same code on the other directions they all play fast again even the walk forward, maybe i need to separate them on individual functions (for example walk forward function a walk backward function, etc) instead of being all inside one function and separated by if statements?

edit: Separated the movements on different functions didn't worked.

At lest i was able to change the character Run function to be able to change the walk sound timing, now when i press shift and the character runs the sounds play faster like he is really running.

I DID IT! Sorry for the caps but i'm happy.

It was just a matter of using "elseif" for the rest of the directions and only put the "else isPlaying = false end" at the end of the "elseif" statements worked like a charm.

Thanks guys for all the help.

Last edited by Argoon (2013-08-24 16:19:44)

Is the charRun() function being called under the onSceneUpdate() function?

Haha! Every time I use a while loop Maratis crashes! haha yeah, I think I get an infinite loop.

I am actually working on a game script template. Was just getting ready to post my second phase on the forum.