41 lines
927 B
Rust
41 lines
927 B
Rust
#![warn(missing_docs)]
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//! Various utilities
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use anyhow::bail;
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use nalgebra::Vector2;
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pub mod constants;
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pub mod timing;
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/// Convert an angle in degrees to radians
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pub fn to_radians(degrees: f32) -> f32 {
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return (degrees / 360.0) * std::f32::consts::TAU;
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}
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/// Convert an angle in radians to degrees
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pub fn to_degrees(radians: f32) -> f32 {
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return (radians / std::f32::consts::TAU) * 360.0;
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}
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/// Compute the clockwise angle between two vectors
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/// Returns a value in [-pi, pi]
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pub fn clockwise_angle(a: &Vector2<f32>, b: &Vector2<f32>) -> f32 {
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(a.x * b.y - b.x * a.y).atan2(a.dot(&b))
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}
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/// Convert a rhai error to an anyhow error.
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/// We can't do this directly, since anyhow requires send + sync,
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/// and we don't need send+sync on rhai.
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pub fn rhai_error_to_anyhow<T, E>(r: Result<T, E>) -> anyhow::Result<T>
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where
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E: ToString,
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{
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match r {
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Ok(x) => Ok(x),
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Err(e) => {
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bail!("{}", e.to_string())
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}
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}
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}
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