Richard ZinkandClaude Opus 5.5
925be17e82
- src/xm.rs: FastTracker 2 XM and ProTracker MOD replayer (verified against libopenmpt) - src/audio.rs: music players with crossfade + effect voices, rendered on demand - src/sfx.rs: 29 synthesised chip sound effects - www/dc_plugin.js: AudioContext started on first input, streams samples from WASM - music follows the game: title, rotating build tracks, battle, gate assault, jingles - macroquad audio removed; all tests run natively with cargo test Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
49 lines
1.5 KiB
Rust
49 lines
1.5 KiB
Rust
// Sound effect dispatch: turns game sound events into positioned effect voices
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// (volume by distance to the camera, stereo panning along the screen's x axis).
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// The audio itself is rendered by audio.rs.
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use crate::audio;
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use crate::game::{Sfx, SfxEvent, SFX_ALL};
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use macroquad::prelude::*;
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pub struct SoundBank {
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last: Vec<f64>,
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}
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impl SoundBank {
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pub fn new() -> SoundBank {
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SoundBank { last: vec![-1.0; SFX_ALL.len()] }
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}
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// minimum gap between two identical sounds (avoids a wall of noise)
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fn min_gap(sfx: Sfx) -> f64 {
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match sfx {
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Sfx::Dig | Sfx::GoldDig | Sfx::MeleeHit | Sfx::Shoot | Sfx::GateHit | Sfx::CoreHit => 0.08,
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Sfx::Claim | Sfx::Deposit | Sfx::DigDone => 0.12,
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_ => 0.03,
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}
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}
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// listener: camera target on the ground; right: screen-right direction on the ground;
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// hear: audible radius in tiles
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pub fn play(&mut self, ev: SfxEvent, listener: Vec2, right: Vec2, hear: f32, now: f64) {
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let i = ev.sfx.index();
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if now - self.last[i] < Self::min_gap(ev.sfx) {
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return;
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}
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let mut vol = 1.0;
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let mut pan = 0.0;
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if let Some((wx, wy)) = ev.pos {
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let d = vec2(wx, wy) - listener;
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let f = 1.0 - ((d.length() - hear * 0.5) / hear).clamp(0.0, 1.0);
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if f <= 0.05 {
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return;
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}
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vol *= f;
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pan = (d.dot(right) / hear).clamp(-1.0, 1.0) * 0.7;
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}
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self.last[i] = now;
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audio::play_sfx(i, vol, pan);
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}
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}
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