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module: injected mach.Entity.Mod for global entity operations

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2024-05-07 14:14:31 -07:00 • committed by Stephen Gutekanst
parent cb6bdd7eca
commit 65e2168b9f
11 changed files with 94 additions and 56 deletions
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26
examples/piano/App.zig
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@ -65,6 +65,7 @@ fn deinit(core: *mach.Core.Mod, audio: *mach.Audio.Mod) void {
}
fn audioStateChange(
entity: *mach.Entity.Mod,
audio: *mach.Audio.Mod,
app: *Mod,
) !void {
@ -81,20 +82,21 @@ fn audioStateChange(
if (app.get(id, .play_after)) |frequency| {
// Play a new sound
const entity = try audio.newEntity();
try audio.set(entity, .samples, try fillTone(audio, frequency));
try audio.set(entity, .channels, @intCast(audio.state().player.channels().len));
try audio.set(entity, .playing, true);
try audio.set(entity, .index, 0);
const e = try entity.new();
try audio.set(e, .samples, try fillTone(audio, frequency));
try audio.set(e, .channels, @intCast(audio.state().player.channels().len));
try audio.set(e, .playing, true);
try audio.set(e, .index, 0);
}
// Remove the entity for the old sound
try audio.removeEntity(id);
try entity.remove(id);
}
}
}
fn tick(
entity: *mach.Entity.Mod,
core: *mach.Core.Mod,
audio: *mach.Audio.Mod,
app: *Mod,
@ -121,16 +123,16 @@ fn tick(
// Piano keys
else => {
// Play a new sound
const entity = try audio.newEntity();
try audio.set(entity, .samples, try fillTone(audio, keyToFrequency(ev.key)));
try audio.set(entity, .channels, @intCast(audio.state().player.channels().len));
try audio.set(entity, .playing, true);
try audio.set(entity, .index, 0);
const e = try entity.new();
try audio.set(e, .samples, try fillTone(audio, keyToFrequency(ev.key)));
try audio.set(e, .channels, @intCast(audio.state().player.channels().len));
try audio.set(e, .playing, true);
try audio.set(e, .index, 0);
if (app.state().ghost_key_mode) {
// After that sound plays, we'll chain on another sound that is one semi-tone higher.
const one_semi_tone_higher = keyToFrequency(ev.key) * math.pow(f32, 2.0, (1.0 / 12.0));
try app.set(entity, .play_after, one_semi_tone_higher);
try app.set(e, .play_after, one_semi_tone_higher);
}
},
}