27 lines
726 B
Rust
27 lines
726 B
Rust
#[derive(Debug, Clone)]
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pub struct Buf {
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width: usize,
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height: usize,
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pub buf: Vec<f32>,
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}
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impl Buf {
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pub fn new(width: usize, height: usize) -> Self {
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Buf {
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width,
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height,
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buf: vec![0.0; height * width],
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}
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}
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// Truncate x and y and return a corresponding index into the data slice.
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const fn index(&self, x: f32, y: f32) -> usize {
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crate::util::index(self.width, self.height, x, y)
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}
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// Get the buffer value at a given position. The implementation effectively treats data as periodic, hence any finite position will produce a value.
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pub fn get_buf(&self, x: f32, y: f32) -> f32 {
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self.buf[self.index(x, y)]
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}
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}
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