Refactor the Filter class

Still not sure about a lot of this, but it's better than nothing.

Signed-off-by: Graham <gpe@openrs2.org>

share/deob/map/client.yaml

@@ -210,7 +210,7 @@ classes:
   client!ql: "GameCanvas"
   client!qm: "SkyBoxType"
   client!qn: "VorbisSound"
-  client!qo: "Class146"
+  client!qo: "Filter"
   client!r: "SecondaryParticleNode"
   client!ra: "ChangeLocRequest"
   client!rd: "VorbisMapping"
@@ -8361,29 +8361,29 @@ fields:
     owner: "VorbisSound"
     name: "prevQuarter"
   client!qo.a [[F:
-    owner: "Static6"
+    owner: "Filter"
-    name: "aFloatArrayArray2"
+    name: "floatingCoefficients"
   client!qo.b [[I:
-    owner: "Static6"
+    owner: "Filter"
-    name: "anIntArrayArray38"
+    name: "coefficients"
   client!qo.c I:
-    owner: "Static6"
+    owner: "Filter"
-    name: "anInt4425"
+    name: "inverseA0"
   client!qo.d [[[I:
-    owner: "Class146"
+    owner: "Filter"
-    name: "anIntArrayArrayArray11"
+    name: "gain"
   client!qo.e [[[I:
-    owner: "Class146"
+    owner: "Filter"
-    name: "anIntArrayArrayArray12"
+    name: "octaves"
   client!qo.f [I:
-    owner: "Class146"
+    owner: "Filter"
-    name: "anIntArray471"
+    name: "pairs"
   client!qo.g F:
-    owner: "Static6"
+    owner: "Filter"
-    name: "aFloat107"
+    name: "floatingInverseA0"
   client!qo.h [I:
-    owner: "Class146"
+    owner: "Filter"
-    name: "anIntArray472"
+    name: "inverseGain"
   client!r.k I:
     owner: "WorldList"
     name: "iterator"
@@ -10405,7 +10405,7 @@ fields:
     name: "oscillatorAmplitudes"
   client!uh.p Lclient!qo;:
     owner: "SynthInstrument"
-    name: "aClass146_1"
+    name: "filter"
   client!uh.q [I:
     owner: "SynthInstrument"
     name: "oscillatorStartMillis"
@@ -10429,7 +10429,7 @@ fields:
     name: "oscillatorTimes"
   client!uh.x Lclient!h;:
     owner: "SynthInstrument"
-    name: "aClass73_9"
+    name: "filterEnvelope"
   client!uh.y [I:
     owner: "SynthInstrument"
     name: "oscillatorIntervalRanges"
@@ -37254,62 +37254,62 @@ methods:
       18: "mask"
       53: "mask"
   client!qo.a (F)F:
-    owner: "Static30"
+    owner: "Filter"
-    name: "method3641"
+    name: "getOctavePhase"
     arguments:
-      0: "arg0"
+      0: "octave"
     locals:
-      7: "local7"
+      7: "frequency"
   client!qo.a (IF)I:
-    owner: "Class146"
+    owner: "Filter"
-    name: "method3640"
+    name: "compute"
     arguments:
-      0: "arg0"
+      0: "direction"
-      1: "arg1"
+      1: "t"
     locals:
-      20: "local20"
+      20: "decibels"
-      50: "local50"
+      50: "amplitude"
-      77: "local77"
+      77: "i"
-      89: "local89"
+      89: "amplitude2"
-      102: "local102"
+      102: "b1"
-      106: "local106"
+      106: "b2"
-      162: "local162"
+      162: "j"
-      168: "local168"
+      168: "temp"
-      197: "local197"
+      197: "temp"
-      226: "local226"
+      226: "i"
-      237: "local237"
+      237: "temp"
-      247: "local247"
+      247: "i"
   client!qo.a (IIF)F:
-    owner: "Class146"
+    owner: "Filter"
-    name: "method3638"
+    name: "getAmplitude"
     arguments:
-      0: "arg0"
+      0: "direction"
-      1: "arg1"
+      1: "i"
-      2: "arg2"
+      2: "t"
     locals:
-      30: "local30"
+      30: "decibels"
   client!qo.a (Lclient!fd;Lclient!h;)V:
-    owner: "Class146"
+    owner: "Filter"
     name: "decode"
     arguments:
       0: "buffer"
       1: "envelope"
     locals:
-      3: "local3"
+      3: "pairs"
-      37: "local37"
+      37: "interpolated"
-      39: "i"
+      39: "direction"
-      44: "j"
+      44: "i"
-      78: "i"
+      78: "direction"
-      83: "j"
+      83: "i"
   client!qo.b (IIF)F:
-    owner: "Class146"
+    owner: "Filter"
-    name: "method3643"
+    name: "getPhase"
     arguments:
-      0: "arg0"
+      0: "direction"
-      1: "arg1"
+      1: "i"
-      2: "arg2"
+      2: "t"
     locals:
-      30: "local30"
+      30: "octave"
   client!r.c (I)V:
     owner: "SecondaryParticleNode"
     name: "unlinkSecondary"
@@ -43052,21 +43052,21 @@ methods:
       424: "delay"
       426: "i"
       430: "samples"
-      469: "local469"
+      469: "t"
-      478: "local478"
+      478: "forwardOrder"
-      487: "local487"
+      487: "backOrder"
-      494: "local494"
+      494: "i"
-      496: "local496"
+      496: "n"
-      521: "local521"
+      521: "sample"
-      523: "local523"
+      523: "j"
-      553: "local553"
+      553: "j"
-      594: "local594"
+      594: "n2"
-      619: "local619"
+      619: "sample"
-      621: "local621"
+      621: "j"
-      651: "local651"
+      651: "j"
-      721: "local721"
+      721: "sample"
-      727: "local727"
+      727: "j"
-      757: "local757"
+      757: "j"
       798: "i"
   client!uh.a (III)I:
     owner: "SynthInstrument"
@@ -43086,7 +43086,7 @@ methods:
       51: "amplitudeModulationWavetable"
       81: "gateWavetable"
       109: "i"
-      116: "local116"
+      116: "amplitude"
   client!ui.a (IIBI)I:
     owner: "Static35"
     name: "method4327"