public static AudioSlapback FindClosest(Vector3 p, out Vector3 rp, out Vector3 rd)
{
var lp = Heartbeat.listenerTransform.position;
float dp = Mathf.Infinity;
AudioSlapback z = null;
rp = Vector3.zero;
rd = Vector3.zero;
p.y = 0f;
foreach (var i in allSlapbacks)
{
var t = i.transform;
var qq = t.position;
var q = qq;
q.y = 0f;
var d = q - p;
float e = d.sqrMagnitude;
if (dp <= e)
{
continue;
}
var fwd = t.forward;
if (Vector3.Dot(d.normalized, fwd) >= 0f)
{
continue;
}
var ld = q - lp;
if (Vector3.Dot(ld.normalized, fwd) >= 0f)
{
continue;
}
dp = e;
rp = qq;
rd = d;
z = i;
}
return(z);
}
internal static bool Activate(
AudioMixerGroup g, AudioClip c, Parameters p, ActivationParams ap
#if UNITY_EDITOR
, Patch patch
#endif
)
{
float r = p.randomization.distance.GetRandomValue();
if (!Mathf.Approximately(r, 0f))
{
float a = Randomizer.plusMinusOne * Mathf.PI;
r *= (p.spatial.distance.max - p.spatial.distance.min);
r += p.spatial.distance.min;
ap.position.x += Mathf.Sin(a) * r;
ap.position.z += Mathf.Cos(a) * r;
}
var pos2 = ap.position;
if (ap.transform != null)
{
pos2 += ap.transform.position;
}
bool looping = ActivateInternal(
g, c, p, ap, pos2, 1f
#if UNITY_EDITOR
, patch
#endif
);
if (!looping && p.occlusion.function != OcclusionFunction.None && p.slapback.patch != null)
{
AudioSlapback s;
Vector3 pos3, d3;
if ((bool)(s = AudioSlapback.FindClosest(pos2, out pos3, out d3)))
{
var patch2 = p.slapback.patch;
var p2 = patch2.program.parameters;
var lpos = Heartbeat.listenerTransform.position;
var d = pos3 - lpos;
var pos4 = pos3 + d.normalized * s.radius;
float dt = s.radius / OcclusionSettings.instance.speedOfSound;
p2.randomization.distance.min = 0f;
p2.randomization.distance.max = 0f;
p2.occlusion.function = OcclusionFunction.Slapback;
float gain;
var clip = patch2.program.GetClip(out gain);
if (!clip)
{
Debug.LogError("Activate: Null AudioClip from patch: " + patch2, patch2);
}
Activate(
patch2.program.mixerGroup, clip, p2,
new ActivationParams {
transform = null,
position = pos4,
delay = ap.delay + dt,
volume = ap.volume * (1f + gain),
modVolume = ap.modVolume,
handle = ap.handle
}
#if UNITY_EDITOR
, patch2
#endif
);
}
}
return(looping);
}
