feat: audio effect zone component

proto/decentraland/sdk/components/audio_effect_zone.proto

@@ -0,0 +1,56 @@
+syntax = "proto3";
+
+package decentraland.sdk.components;
+
+import "decentraland/sdk/components/common/id.proto";
+import "decentraland/common/vectors.proto";
+
+option (common.ecs_component_id) = 1217;
+
+// The AudioEffectZone component can be attached to an Entity to define a region of space
+// where audio effects are applied to sound sources (avatars, AudioSource) inside the zone.
+//
+// The Entity's Transform position determines the center-point of the region, while its size
+// is given as a vector in the `area` property below. The Transform rotation is applied, but
+// the scale is ignored.
+
+message PBAudioEffectZone {
+  decentraland.common.Vector3 area = 1; // The 3D size of the effect region.
+
+  oneof effect {
+    SilenceEffect silence = 10;
+    DeSpatializationEffect despatialize = 11;
+    AmplificationEffect amplify = 12;
+    ReverbEffect reverb = 13;
+    EchoEffect echo = 14;
+  }
+
+  // All audio sources will be muted while Listener is in zone.
+  message SilenceEffect {
+    optional string exclude_ids = 1;
+  } 
+
+  message DeSpatializationEffect {} // Removes spatialization of the audio source inside.
+
+  message AmplificationEffect {
+    optional float volume_multiplier = 1;    // default 2.0
+    optional float distance_multiplier = 2;  // default 2.0
+  }
+
+  message EchoEffect {}
+
+  message ReverbEffect {
+    optional ReverbPreset preset = 1;
+  }
+
+  message PitchEffect {
+    optional float amount = 1;    // default 2.0
+  }
+
+  enum ReverbPreset {
+    RP_ROOM = 0;
+    RP_ARENA = 1;
+    RP_CAVE = 2;
+    RP_AUDITOTRIUM = 3;
+  }
+}