31 lines
735 B
Rust
31 lines
735 B
Rust
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#[derive(Debug, Clone, Copy)]
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pub struct Transformation([f32; 16]);
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impl Transformation {
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#[rustfmt::skip]
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pub fn identity() -> Self {
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Transformation([
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1.0, 0.0, 0.0, 0.0,
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0.0, 1.0, 0.0, 0.0,
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0.0, 0.0, 1.0, 0.0,
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0.0, 0.0, 0.0, 1.0,
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])
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}
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#[rustfmt::skip]
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pub fn orthographic(width: u16, height: u16) -> Self {
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Transformation([
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2.0 / width as f32, 0.0, 0.0, 0.0,
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0.0, 2.0 / height as f32, 0.0, 0.0,
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0.0, 0.0, 1.0, 0.0,
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-1.0, -1.0, 0.0, 1.0,
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])
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}
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}
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impl From<Transformation> for [f32; 16] {
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fn from(transformation: Transformation) -> [f32; 16] {
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transformation.0
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}
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}
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