From f0a2ee8f4865ce8b6514e4823081bb6c9f2de274 Mon Sep 17 00:00:00 2001
From: Lucas Schwiderski <lucas@sclu1034.dev>
Date: Sat, 13 Jul 2024 17:15:40 +0200
Subject: [PATCH] Update File Type - Wwise Event

---
 File Type - Wwise Event.-.md | 45 ++++++++++++++++++++++++++++++++----
 1 file changed, 41 insertions(+), 4 deletions(-)

diff --git a/File Type - Wwise Event.-.md b/File Type - Wwise Event.-.md
index 15c9e23..f0a295f 100644
--- a/File Type - Wwise Event.-.md	
+++ b/File Type - Wwise Event.-.md	
@@ -51,8 +51,30 @@ typedef struct(data_DIDX &DIDX_dataObj)
     FSeek(pos + parentof(this).secLen);
 } data_DATA;
 
+typedef enum <byte> {
+    Settings = 1,
+    SoundVoice,
+    EventAction,
+    Event,
+    RandomContainer,
+    SwitchContainer,
+    ActorMixer,
+    AudioBus,
+    BlendContainer,
+    MusicSegment,
+    MusicTrack,
+    MusicSwitchContainer,
+    MusicPlaylistContainer,
+    Attenuation,
+    DialogueEvent,
+    MotionBus,
+    MotionFX,
+    Effect,
+    AuxiliaryBus = 20
+} data_HIRC_object_type;
+
 typedef struct {
-    byte object_type;
+    data_HIRC_object_type object_type;
     uint32 object_length;
     uint32 id <format=hex>;
     byte data[object_length-4];
@@ -98,6 +120,7 @@ uint32 length;
 // A section of values that don't belong the actual Wwise bank
 struct {
     uint32 unknown1;
+    Assert(unknown1 == 0x0);
     // Matches the file itself
     uint64 this_file <format=hex>;
     uint32 unknown2;
@@ -110,18 +133,32 @@ struct {
     // - Wwise bus the event runs on
 
     // Corresponds to the `id` value of a HIRC object of type "event" later on in the file
-    uint32 unknown4 <format=hex, comment="Looks like a short hash">;
-    float unknown5;
+    uint32 hirc_event_id <format=hex, comment="Looks like a short hash">;
 
+    // No particularly clear value.
+    // Sometimes when interpreted as `float`, it produces whole numbers.
+    // Sometimes, it's very close to `0xFFFFFFFF`.
+    uint32 unknown5;
+
+    // Following two usually look like hashes.
+    // Also often reasonably looking floats close to `1`. Could be something like volume.
+    // Would still fit with it sometimes showing up elsewhere in a `.wwise_bank`: It's not unreasonable
+    // for the bnk to have volume values as well.
+
+    // In at least one instance, shows up in `MotionBus`/`MotionFX` sections in a `.wwise_bank`.
     uint32 unknown6 <format=hex, comment="Looks like a short hash">;
     // At least in one instance, this was identical with `unknown6`
     uint32 unknown7 <format=hex, comment="Looks like a short hash">;
 
     uint32 unknown8;
+    Assert(unknown8 == 0x0);
     uint32 unknown9;
+    Assert(unknown9 == 0x0 || unknown9 == 0x1);
     uint32 unknown10;
+    Assert(unknown10 == 0x0);
     uint32 unknown11;
-} header <open=true>;
+    Assert(unknown11 == 0x0);
+} header;
 
 struct bnk
 {