v0.4.22: route video audio through Players sound category

Previously the per-anchor audio gain was just volume × distance attenuation,
which ignored Minecraft's sound options sliders entirely — Master and Players
both had no effect on video audio. Now updateDistanceGains multiplies in
options.getSoundSourceVolume(MASTER) × getSoundSourceVolume(PLAYERS) to
match vanilla SoundEngine.calculateVolume, so the Players slider attenuates
video audio like other player sounds and Master gates everything.

Recomputed at the same 20Hz tick as distance gain — slider drags take
effect within ~50ms with no extra plumbing.

gradle.properties

@@ -5,7 +5,7 @@ org.gradle.configuration-cache=false
 
 # Mod
 mod_id=video_player
-mod_version=0.4.21
+mod_version=0.4.22
 maven_group=com.ejclaw.videoplayer
 archives_base_name=video_player
 

src/main/java/com/ejclaw/videoplayer/VideoPlayerClient.java

@@ -20,6 +20,7 @@ import net.fabricmc.fabric.api.event.player.AttackBlockCallback;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.player.LocalPlayer;
 import net.minecraft.core.BlockPos;
+import net.minecraft.sounds.SoundSource;
 import net.minecraft.world.InteractionResult;
 import net.minecraft.world.phys.Vec3;
 
@@ -89,17 +90,26 @@ public class VideoPlayerClient implements ClientModInitializer {
      * Distance is measured from the player's eye to the <em>panel center</em>, not the anchor
      * block corner — for a 4×4 panel the corner is ~2 blocks off from where the screen visually
      * sits, which made the audio feel like it was off to the side.
+     *
+     * <p>Gain is also gated by the Minecraft sound options so the in-game sliders work as
+     * expected: vanilla {@code SoundEngine.calculateVolume} multiplies by master × category, so
+     * we do the same with {@link SoundSource#PLAYERS} as the category. Result: dragging the
+     * "Players" slider in Options → Music & Sounds attenuates video audio just like other
+     * player sounds, and "Master" still gates everything.
      */
     private static void updateDistanceGains(Minecraft client) {
         LocalPlayer p = client.player;
         if (p == null || client.level == null) return;
         Vec3 eye = p.getEyePosition();
+        float masterVol = client.options.getSoundSourceVolume(SoundSource.MASTER);
+        float playersVol = client.options.getSoundSourceVolume(SoundSource.PLAYERS);
+        float categoryScale = masterVol * playersVol;
         for (BlockPos pos : VideoPlayback.activePositions()) {
             if (!(client.level.getBlockEntity(pos) instanceof VideoAnchorBlockEntity be)) continue;
             Vec3 center = be.panelCenter();
             double d = center.distanceTo(eye);
             float attenuation = (float) Math.max(0.0, Math.min(1.0, 1.0 - d / 16.0));
-            float gain = be.isMuted() ? 0F : be.getVolume() * attenuation;
+            float gain = be.isMuted() ? 0F : be.getVolume() * attenuation * categoryScale;
             VideoPlayback.setGain(pos, gain);
         }
     }