Move stuff into base

common/src/commonMain/kotlin/nl/astraeus/vst/string/PhysicalString.kt

@@ -7,6 +7,8 @@ import kotlin.math.round
 
 expect fun randomDouble(): Double
 
+const val BUFFER_MULTIPLY = 4
+
 @ExperimentalJsExport
 @JsExport
 class PhysicalString(
@@ -14,9 +16,9 @@ class PhysicalString(
   var damping: Double,
 ) {
   val sampleLength = 1.0 / sampleRate.toDouble()
-  val maxLength = sampleRate / Note.G9.freq
+  val maxLength = sampleRate / Note.NO01.freq
   var length = 1
-  val buffer = Array(maxLength.toInt() + 1) { 0.0 }
+  val buffer = Array((maxLength * BUFFER_MULTIPLY).toInt() + 1) { 0.0 }
   var sample = 0
   var index = 0
   var remaining = 0.0
@@ -26,7 +28,7 @@ class PhysicalString(
   fun pluck(note: Note, velocity: Double, smoothing: Int = 0) {
     available = false
     currentNote = note
-    length = round(sampleRate / note.freq).toInt()
+    length = round(BUFFER_MULTIPLY * sampleRate / note.freq).toInt()
     sample = 0
     index = 0
 
@@ -37,7 +39,7 @@ class PhysicalString(
         buffer[i] = -randomDouble() * velocity
       }
       //buffer[i] = (randomDouble() - 0.5) * 2.0 * velocity
-      //buffer[i] = sin(PI * 2 * i/length)
+      //buffer[i] = sin(PI * 2 * i/length) * randomDouble() * velocity
       //buffer[i] = (i/length.toDouble() * 2.0) - 1.0 //if (i < length / 2) { 1.0 } else { -1.0 }
     }
     repeat(smoothing) {
@@ -58,18 +60,20 @@ class PhysicalString(
   fun tick(): Double {
     val result = buffer[index]
 
-    var newValue = 0.0
-    newValue += getValueFromBuffer(index + 1) * 0.2
-    newValue += getValueFromBuffer(index + 2) * 0.3
-    newValue += getValueFromBuffer(index + 3) * 0.3
-    newValue += getValueFromBuffer(index + 4) * 0.2
-//    newValue += getValueFromBuffer(index + 5) * 0.2
-//    newValue += getValueFromBuffer(index + 6) * 0.3
-    newValue *= damping
+    repeat(BUFFER_MULTIPLY) {
+      var newValue = 0.0
+      newValue += getValueFromBuffer(index + 1) * 0.1
+      newValue += getValueFromBuffer(index + 2) * 0.15
+      newValue += getValueFromBuffer(index + 3) * 0.25
+      newValue += getValueFromBuffer(index + 4) * 0.25
+      newValue += getValueFromBuffer(index + 5) * 0.15
+      newValue += getValueFromBuffer(index + 6) * 0.1
+      newValue *= damping
 
-    buffer[index] = newValue
+      buffer[index] = newValue
 
-    index = (index + 1) % length
+      index = (index + 1) % length
+    }
 
     return result
   }