ModMgr: I can load class by name; dropped Groovy script support, coding must go to JAR

src/net/torvald/terrarum/audio/SpatialAudioMixer.kt

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+package net.torvald.terrarum.audio
+
+/**
+ * Mixes spacial audio sources to multiple channels
+ *
+ *
+ * Channels and their mapping:
+ *
+ * Notation: (front/side/rear.subwoofer/top-front)
+ * Plugs: G-Front (green), K-Rear (black), Y-Centre/Subwoofer (yellow), E-Side (grey)
+ *        e.g. E-RC,NULL means GREY jack outputs REAR-CENTRE to its left and nothing to its right channel.
+ *
+ * = Headphones: Binaural
+ * = Stereo ---------- (2/0/0.0/0): G-FL,FR
+ * = Quadraphonic ---- (2/0/2.0/0): G-FL,FR; K-RL,RR
+ * = 4.0 ------------- (3/0/1.0/0): G-FL,FR; Y-FC,RC
+ * = 5.1 ------------- (3/0/2.1/0): G-FL,FR; Y-FC,SW; K-RL,RR
+ * = 6.1 ------------- (3/0/3.1/0): G-FL,FR; Y-FC,SW; K-RL,RR, E-RC,RC
+ * = 7.1 ------------- (3/2/2.1/0): G-FL,FR; Y-FC,SW; K-RL,RR, E-SL,SR
+ * = Dolby Atmos 5.1.2 (3/0/2.1/2): G-FL,FR; Y-FC,SW; K-RL,RR, E-TL,TR
+ *
+ *
+ * Channel uses:
+ *
+ * - Front and centre: usual thingies
+ * - Rear: weather/ambient if 4.0, channel phantoming otherwise
+ * - Top/Side: weather/ambient
+ * - Side: extreme pan for front channels
+ * - Centre: interface/UI
+ *
+ * * If both side and rear speakers are not there, play weather/ambient to the stereo speakers but NOT TO THE CENTRE
+ * * For non-existent speakers, use channel phantoming
+ *
+ * Note: 5.1.2 does NOT output Dolby-compatible signals.
+ */
+object SpatialAudioMixer {
+
+    const val centreQuotient = 0.7071f
+
+}