SetSoundPitch() native is bugged (Need help!)

[Zwiebelchen]

For some reason, the [ljass]SetSoundPitch()[/ljass] native seems to be bugged.

Let's look at some code here:

    local sound s1 = CreateSound("war3mapImported\\PiccoloA5.mp3", false, false, false, 10, 10, "")
    call StartSound(s1)
    call SetSoundPitch(s1, 1)
    call TriggerSleepAction(3)
    call SetSoundPitch(s1, 1.3)
    call StartSound(s1)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1.301)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1.302)

The first sound has the correct pitch of 1.
The second sound has the correct pitch of 1.3
The third sound has a pitch of 1.3^2
The fourth sound has a pitch of 1.3^2

local sound s1 = CreateSound("war3mapImported\\PiccoloA5.mp3", false, false, false, 10, 10, "")
call StartSound(s1)
call SetSoundPitch(s1, 1)
call TriggerSleepAction(3)
call SetSoundPitch(s1, 1.3)
call StartSound(s1)
call TriggerSleepAction(3)
call StartSound(s1)
call SetSoundPitch(s1, 1.3)
call TriggerSleepAction(3)
call StartSound(s1)
call SetSoundPitch(s1, 1.302)

First Sound: 1.0
Second Sound: 1.3
Third Sound: 1.3
Fourth Sound: 1.3^2

Now that this wasn't weird enough, there is more:

    local sound s1 = CreateSound("war3mapImported\\PiccoloA5.mp3", false, false, false, 10, 10, "")
    call StartSound(s1)
    call SetSoundPitch(s1, 1)
    call TriggerSleepAction(3)
    call SetSoundPitch(s1, 1.3)
    call StartSound(s1)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1.3)

Real pitch values:
First Sound: Pitch 1
Second Sound: Pitch 1.3
Third Sound: Pitch 1.3 (??)
Fourth Sound: Pitch 1.3 (????)

Same goes for

    local sound s1 = CreateSound("war3mapImported\\PiccoloA5.mp3", false, false, false, 10, 10, "")
    call StartSound(s1)
    call SetSoundPitch(s1, 1)
    call TriggerSleepAction(3)
    call SetSoundPitch(s1, 1.3)
    call StartSound(s1)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1.001)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1.301)

Real pitches:
1.0
1.3
1.3 (???)
1.3

And now to make it even more weird:

    local sound s1 = CreateSound("war3mapImported\\PiccoloA5.mp3", false, false, false, 10, 10, "")
    call StartSound(s1)
    call SetSoundPitch(s1, 1)
    call TriggerSleepAction(3)
    call SetSoundPitch(s1, 1.3)
    call StartSound(s1)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1.301)
    call TriggerSleepAction(3)
    call StartSound(s1)
    call SetSoundPitch(s1, 1)

1.0
1.3
1.3^2
1.3 (?????)

I give up ... I can not find ANY logical pattern here. Someone please help; am I missing something? If someone can give me a reason for this weird behaviour, please help!
I want to write a SetSoundPitchEx function, but without a logical pattern, there's nothing I can do about it.

PS: Changing the Length of the TriggerSleepAction or Starting the Sound after or before setting the sound pitch does not make any difference.

 

[jnZ]

i'm pretty sure you should have posted this in the jass section.

EDIT: just an idea since i don't have the slightest clue. but could it be possible that it can't handle floats with more than 2 decimal places? since most of the abnormal results seem to be related to them.

 

[Zwiebelchen]

i'm pretty sure you should have posted this in the jass section.

EDIT: just an idea since i don't have the slightest clue. but could it be possible that it can't handle floats with more than 2 decimal places? since most of the abnormal results seem to be related to them.

Well, the native allows for very precise digits. Even something like Pitch 1.059465 is possible (In fact, this number is the frequency factor that pushes the sound a half note higher. 1.059465^12 = 2, which is a full octave. I am currently writing a GuitarTab interpreter system for WC3, so this is crucial.

I will post it again in the JASS section, Thanks.