Add Japanese radio comms on hover select

[wannerdev]

Description

Adds audio feedback that plays Japanese radio communications when hovering over and selecting satellites, enhancing the space theme and providing audio confirmation of selection.

Changes

• Added RadioCommsPlaying component to track radio comms sound
• Implemented play_radio_comms_on_hover system
• Plays sound when satellite is selected (NavigationInstruments component added)
• Uses Changed<NavigationInstruments> to detect selection events
• Stops any previously playing radio comms before playing new one
• Added necessary imports: Satellite, NavigationInstruments
• Integrated into SoundPlugin update systems
• Using warning_sound as placeholder (needs replacement with actual Japanese audio)

Audio Behavior

• Trigger: When hovering over satellite (NavigationInstruments added)
• Action: Plays Japanese radio comms sound
• Cleanup: Stops previous radio comms if still playing
• Frequency: Once per satellite selection
• Duration: Plays to completion (DESPAWN setting)

Implementation Details

• Queries satellites with Changed<NavigationInstruments> filter
• Detects when NavigationInstruments component is added (selection event)
• Despawns any existing RadioCommsPlaying entities first
• Spawns new audio entity with RadioCommsPlaying tag
• Uses PlaybackSettings::DESPAWN for automatic cleanup
• Only processes first selection per frame (breaks after first)

Placeholder Audio

• Current: Using warning_sound (beepx3.wav) as placeholder
• TODO: Replace with actual Japanese radio communications audio
• Recommended: Short Japanese voice clip (1-2 seconds)
• Examples: "了解" (Ryōkai - Roger), "確認" (Kakunin - Confirmed), "接続" (Setsuzoku - Connected)
• Format: WAV or OGG format
• Location: Add to assets/sounds/ directory
• Asset Loading: Add to SolarSystemAssets in src/sun_system/mod.rs

How to Replace Placeholder

1. Add Japanese audio file to assets/sounds/japanese_comms.wav
2. Load in SolarSystemAssets:

   japanese_comms: Handle<AudioSource>,

3. Update asset loading:

   japanese_comms: asset_server.load("sounds/japanese_comms.wav"),

4. Replace in play_radio_comms_on_hover:

   AudioPlayer::new(assets.japanese_comms.clone()),

Benefits

• Enhances space/sci-fi atmosphere
• Provides audio confirmation of satellite selection
• Adds unique character to the game
• Makes selection events more noticeable
• Complements visual selection feedback
• Adds immersive audio detail

Technical Details

• Uses Bevy's change detection for efficiency
• Only triggers on actual selection changes
• Prevents audio overlap by stopping previous sounds
• Automatic cleanup with DESPAWN setting
• No performance impact (event-driven)
• Works with both mouse hover and touch selection

Testing

• Hover over satellite with mouse
• Verify sound plays when satellite is selected
• Hover over different satellite
• Verify new sound plays and previous stops
• Rapidly hover over multiple satellites
• Verify sounds don't overlap or spam
• Check that sound plays on both desktop and mobile

Future Enhancement

• Replace placeholder with actual Japanese radio comms
• Consider multiple voice clips for variety
• Add different comms for different satellite types
• Volume adjustment for radio comms

Related Issue

Fixes: Twitch Feedback - On hover select, some Japanese radio comms talk in the background