53 lines
1.1 KiB
Rust
53 lines
1.1 KiB
Rust
use crate::point::{Point, Color};
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use nalgebra::base::{Matrix3, Matrix1x3};
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use crate::errors::{LJError, LJResult};
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use log::debug;
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#[derive(Debug, Default)]
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pub struct EDH {
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pub matrix: Matrix3<f32>,
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}
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impl EDH {
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pub fn new(vec: Vec<Vec<f32>>) -> LJResult<EDH> {
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if vec.len() != 3 ||
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vec[0].len() != 3 ||
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vec[1].len() != 3 ||
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vec[2].len() != 3 {
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return Err(Box::new(LJError::BadEDH));
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}
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// this is the matrix already transposed.
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let matrix = Matrix3::new(vec[0][0], vec[1][0], vec[2][0],
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vec[0][1], vec[1][1], vec[2][1],
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vec[0][2], vec[1][2], vec[2][2]);
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Ok(EDH { matrix })
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}
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pub fn apply(&self, point: &Point) -> Point {
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let p = Matrix1x3::new(point.x, point.y, 1.0);
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let p = p * self.matrix;
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let new_p = Point { x: p[0] / p[2], y: p[1] / p[2], ..*point };
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debug!("{:?} => {:?}", point, new_p);
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new_p
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}
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}
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#[derive(Debug, Default)]
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pub struct WorldState {
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pub edh: EDH,
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pub resampler: Vec<f32>,
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pub client_key: String,
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pub intensity: u8,
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pub kpps: u32,
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pub color: Color,
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pub draw_black: bool,
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pub draw_grid: bool,
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pub grid: Vec<Point>,
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}
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impl WorldState {}
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