curioustorvald/Terrarum
1
0
Fork 0
mirror of https://github.com/curioustorvald/Terrarum.git synced 2026-06-17 05:54:05 +09:00
Code Issues Packages Projects Releases Wiki Activity

dynamic source tracking vol and lowpass and shits

Browse Source
This commit is contained in:
minjaesong
2024-01-11 20:09:36 +09:00
parent 28edba9bb3
commit b415f30ae5
3 changed files with 32 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
src/net/torvald/terrarum/audio/MixerTrackProcessor.kt
View File

@@ -1,9 +1,13 @@
package net.torvald.terrarum.audio
import com.badlogic.gdx.utils.Queue
import com.jme3.math.FastMath
import net.torvald.reflection.forceInvoke
import net.torvald.terrarum.App
import net.torvald.terrarum.audio.TerrarumAudioMixerTrack.Companion.SAMPLING_RATE
import net.torvald.terrarum.audio.TerrarumAudioMixerTrack.Companion.SAMPLING_RATED
import net.torvald.terrarum.audio.dsp.BinoPan
import net.torvald.terrarum.audio.dsp.Lowpass
import net.torvald.terrarum.audio.dsp.NullFilter
import net.torvald.terrarum.distBetweenActors
import net.torvald.terrarum.gameactors.ActorWithBody
@@ -37,7 +41,7 @@ class MixerTrackProcessor(val buffertaille: Int, val rate: Int, val track: Terra
private var breakBomb = false
private val distFalloff = 1536.0
private val distFalloff = 1600.0
private fun printdbg(msg: Any) {
if (true) App.printdbg("AudioAdapter ${track.name}", msg)
@@ -109,16 +113,22 @@ class MixerTrackProcessor(val buffertaille: Int, val rate: Int, val track: Terra
if (track.trackingTarget == null || track.trackingTarget == AudioMixer.actorNowPlaying) {
track.volume = track.maxVolume
(track.filters[0] as BinoPan).pan = 0f
(track.filters[1] as Lowpass).setCutoff(SAMPLING_RATE / 2f)
}
else if (track.trackingTarget is ActorWithBody) {
val relativeXpos = relativeXposition(AudioMixer.actorNowPlaying!!, track.trackingTarget as ActorWithBody)
val distFromActor = distBetweenActors(AudioMixer.actorNowPlaying!!, track.trackingTarget as ActorWithBody)
track.volume = track.maxVolume * getVolFun(distFromActor / distFalloff).coerceAtLeast(0.0)
val vol = track.maxVolume * getVolFun(distFromActor / distFalloff).coerceAtLeast(0.0)
track.volume = vol
(track.filters[0] as BinoPan).pan =
if (relativeXpos <= -distFalloff) -1f
else if (relativeXpos >= distFalloff) 1f
else ((2*asin(relativeXpos / distFalloff)) / Math.PI).toFloat()
// TODO lowpass filter by dist
(track.filters[1] as Lowpass).setCutoff(
(SAMPLING_RATED*0.5) / (24.0 * (distFromActor / distFalloff).sqr() + 1.0)
)
// printdbg("dist=$distFromActor\tvol=${fullscaleToDecibels(vol)}\tcutoff=${(track.filters[1] as Lowpass).cutoff}")
}
}
}
@@ -237,12 +247,20 @@ class MixerTrackProcessor(val buffertaille: Int, val rate: Int, val track: Terra
// } // uncomment to multithread
}
// https://www.desmos.com/calculator/blcd4s69gl
private fun getVolFun(x: Double): Double {
// https://www.desmos.com/calculator/blcd4s69gl
// val K = 1.225
// fun q(x: Double) = if (x >= 1.0) 0.5 else (K*x - K).pow(2.0) + 0.5
// val x2 = x.pow(q(x))
return decibelsToFullscale(-20.0 * x)
// method 1.
//https://www.desmos.com/calculator/uzbjw10lna
val K = 512.0
return K.pow(-sqrt(1.0+x.sqr())) * K
// method 2.
// https://www.desmos.com/calculator/xxp5ipp85w
}
private fun FloatArray.applyVolume(volume: Float) = FloatArray(this.size) { (this[it] * volume) }