1 files changed, 37 insertions, 0 deletions
diff --git a/klangfarbrs/src/osc.rs b/klangfarbrs/src/osc.rs
new file mode 100644
index 0000000..9e3b147
--- /dev/null
+++ b/klangfarbrs/src/osc.rs
@@ -0,0 +1,37 @@
+use std::f32::consts::TAU;
+use crate::{Waveform, Phase, Sample};
+
+pub struct Osc {}
+
+impl Osc {
+    pub fn generate_sample(waveform: &Waveform, phase: Phase) -> Sample {
+        let phase = phase;
+
+        match waveform {
+            Waveform::Sine => {
+                (TAU * phase).sin()
+            },
+
+            Waveform::Square => {
+                if phase < 0.5 {
+                    -1.0
+                } else {
+                    1.0
+                }
+            },
+
+            Waveform::Triangle => {
+                if phase < 0.5 {
+                    4.0 * phase - 1.0
+                } else {
+                    4.0 * (1.0 - phase) - 1.0
+                }
+            },
+
+            Waveform::Sawtooth => {
+                2.0 * phase - 1.0
+            }
+        }
+    }
+}
+