Add adaptive progression and item expansion
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// ---- music manager: crossfading loops mapped to game moods ----
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const Music = {
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current: null, // { audio, name }
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fading: null,
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bossCount: 0,
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TRACKS: {
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menu: 'Blood Arcade.mp3',
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floors: [
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'Rust Hollow Loop.mp3', 'Blood Dice Loop.mp3', 'Crimsonland Requiem.mp3',
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'Crimsonland Tool.mp3', 'Blood Arcade_Alt.mp3', 'Rust Hollow Loop_Alt.mp3',
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'Blood Dice Loop_alt.mp3', 'Crimsonland Requiem_alt.mp3', 'Crimsonland Tool_alt.mp3',
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'Blood Arcade.mp3',
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],
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bosses: {
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bonesaw: ['Bone Saw Loop_Boss.mp3', 'Bone Saw Loop_Alt_Boss.mp3'],
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gorecrown: ['Gore Crown Loop_Boss.mp3', 'Gore Crown Loop_Alt_Boss.mp3'],
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knifecrawl: ['Knife Floor Crawl_Boss.mp3', 'Knife Floor Crawl_Alt_Boss.mp3'],
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vealmother: ['Veal Mother Loop_Boss.mp3', 'Veal Mother Loop_Alt_Boss.mp3'],
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flenser: ['Flenser Loop_Boss.mp3', 'Flenser Loop_Alt_Boss.mp3'],
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hookchoir: ['Hook Choir Loop_Boss.mp3', 'Hook Choir Loop_Alt_Boss.mp3'],
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platefather: ['Plate Father Loop_Boss.mp3', 'Plate Father Loop_Alt_Boss.mp3'],
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augerprime: ['Auger Prime Loop_Boss.mp3', 'Auger Prime Loop_Alt_Boss.mp3'],
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scald: ['Scald Loop_Boss.mp3', 'Scald Loop_Alt_Boss.mp3'],
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},
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},
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// jukebox: every non-boss track, selectable by the player
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PLAYLIST: [
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'Blood Arcade.mp3', 'Blood Arcade_Alt.mp3',
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'Rust Hollow Loop.mp3', 'Rust Hollow Loop_Alt.mp3',
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'Blood Dice Loop.mp3', 'Blood Dice Loop_alt.mp3',
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'Crimsonland Requiem.mp3', 'Crimsonland Requiem_alt.mp3',
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'Crimsonland Tool.mp3', 'Crimsonland Tool_alt.mp3',
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'Bone Saw Loop_Boss.mp3', 'Bone Saw Loop_Alt_Boss.mp3',
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'Gore Crown Loop_Boss.mp3', 'Gore Crown Loop_Alt_Boss.mp3',
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'Knife Floor Crawl_Boss.mp3', 'Knife Floor Crawl_Alt_Boss.mp3',
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'Veal Mother Loop_Boss.mp3', 'Veal Mother Loop_Alt_Boss.mp3',
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'Flenser Loop_Boss.mp3', 'Flenser Loop_Alt_Boss.mp3',
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'Hook Choir Loop_Boss.mp3', 'Hook Choir Loop_Alt_Boss.mp3',
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'Plate Father Loop_Boss.mp3', 'Plate Father Loop_Alt_Boss.mp3',
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'Auger Prime Loop_Boss.mp3', 'Auger Prime Loop_Alt_Boss.mp3',
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'Scald Loop_Boss.mp3', 'Scald Loop_Alt_Boss.mp3',
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],
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override: null, // filename when the player picked a track manually
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pretty(file) {
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return file.replace(/\.mp3$/i, '').replace(/_Boss$/i, '').replace(/_Alt$/i, ' (Alt)').replace(/_alt$/i, ' (Alt)');
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},
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// the track the game *should* be playing right now (respects manual override)
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requestFloorMusic() {
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if (this.override) this.play(this.override);
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else this.playFloor(G.floor);
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},
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makeAudio(name) {
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const a = new Audio('mp3-music/' + encodeURIComponent(name));
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a.loop = true;
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a.volume = 0;
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a.preload = 'auto';
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return a;
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},
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floorTrack(floor) { return this.TRACKS.floors[(floor - 1) % this.TRACKS.floors.length]; },
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bossTrack(kind) {
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const pair = this.TRACKS.bosses[kind] || this.TRACKS.bosses.bonesaw;
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return pair[this.bossCount % 2];
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},
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play(name) {
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if (this.current && this.current.name === name) return;
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if (this.fading) {
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this.fading.audio.pause();
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if (typeof Sfx !== 'undefined') Sfx.detachMusic(this.fading.audio);
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this.fading = null;
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}
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if (this.current) this.fading = this.current;
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const a = this.makeAudio(name);
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a.muted = G.muted;
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if (typeof Sfx !== 'undefined') Sfx.attachMusic(a);
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a.play().catch(() => {}); // browser may block until user gesture; retried on next call
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this.current = { audio: a, name, retryT: 0 };
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},
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playMenu() { this.play(this.TRACKS.menu); },
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playFloor(floor) { this.play(this.floorTrack(floor)); },
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playBoss(kind) { this.play(this.bossTrack(kind)); this.bossCount++; },
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stop() {
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if (this.current) {
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this.current.audio.pause();
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if (typeof Sfx !== 'undefined') Sfx.detachMusic(this.current.audio);
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this.current = null;
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}
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if (this.fading) {
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this.fading.audio.pause();
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if (typeof Sfx !== 'undefined') Sfx.detachMusic(this.fading.audio);
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this.fading = null;
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}
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},
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setMuted(m) {
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if (this.current) this.current.audio.muted = m;
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if (this.fading) this.fading.audio.muted = m;
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if (typeof Sfx !== 'undefined') Sfx.setMusicMuted(m);
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},
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setVolume(v) {
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G.musicVol = clamp(v, 0, 1);
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try { localStorage.setItem('meatslicer_music_volume', String(G.musicVol)); } catch (e) {}
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if (this.current) this.current.audio.volume = Math.min(this.current.audio.volume, G.musicVol);
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if (this.fading) this.fading.audio.volume = Math.min(this.fading.audio.volume, G.musicVol);
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},
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// cycle the jukebox selection: Auto -> track 0 -> ... -> track N -> Auto
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cycle(dir) {
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const n = this.PLAYLIST.length;
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if (G.musicSel === undefined || G.musicSel === null) G.musicSel = -1;
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G.musicSel += dir;
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if (G.musicSel >= n) G.musicSel = -1;
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if (G.musicSel < -1) G.musicSel = n - 1;
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if (G.musicSel === -1) {
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this.override = null;
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addToast('MUSIC: AUTO', 'floor rotation');
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} else {
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this.override = this.PLAYLIST[G.musicSel];
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addToast('MUSIC: ' + this.pretty(this.override));
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}
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// never interrupt a live boss track — it hands back when the boss dies
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if (!G.boss) this.requestFloorMusic();
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Sfx.pickup();
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},
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update(dt) {
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const target = G.musicVol === undefined ? 0.55 : G.musicVol;
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// Tracks created before the AudioContext resumed keep playing directly;
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// attach once the context is running so large SFX can duck the music bus.
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if (typeof Sfx !== 'undefined') {
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if (this.current) Sfx.attachMusic(this.current.audio);
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if (this.fading) Sfx.attachMusic(this.fading.audio);
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}
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if (this.current && this.current.audio.volume < target) {
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this.current.audio.volume = clamp(this.current.audio.volume + dt * 0.8, 0, target);
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// If autoplay was blocked, retry at a gentle cadence rather than once
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// per frame (which can flood promises and the browser media pipeline).
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this.current.retryT -= dt;
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if (this.current.audio.paused && this.current.retryT <= 0) {
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this.current.retryT = 1;
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this.current.audio.play().catch(() => {});
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}
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}
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if (this.fading) {
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const v = this.fading.audio.volume - dt * 0.8;
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if (v <= 0.01) {
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this.fading.audio.volume = 0;
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this.fading.audio.pause();
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if (typeof Sfx !== 'undefined') Sfx.detachMusic(this.fading.audio);
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this.fading = null;
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} else {
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this.fading.audio.volume = v;
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}
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}
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},
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};
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