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added direction to movement

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This commit is contained in:
jacob janzen 2022-08-28 11:23:16 -05:00
parent df917c3aa6
commit 176cd57fc7
2 changed files with 15 additions and 5 deletions
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20
src/lib.rs
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@ -34,6 +34,7 @@ struct Ellipse {
width: f64,
angle: f64,
curr_point: Point,
direction: f64,
}
#[derive(Clone)]
@ -109,14 +110,16 @@ impl Image {
let pos = 2.0 * PI * frame as f64 / self.frames as f64;
for ellipse in &mut self.ellipses {
let sin_theta = (ellipse.angle + pos).sin();
let cos_theta = (ellipse.angle + pos).cos();
let sin_theta = ((ellipse.angle + pos) * ellipse.direction).sin();
let cos_theta = ((ellipse.angle + pos) * ellipse.direction).cos();
let a = ellipse.width / 2.0;
let b = ellipse.height / 2.0;
let radius =
(a * b) / (a * a * sin_theta * sin_theta + b * b * cos_theta * cos_theta).sqrt();
ellipse.curr_point.x = (ellipse.centre.x as f64 + radius * pos.sin()) as i64;
ellipse.curr_point.y = (ellipse.centre.y as f64 + radius * pos.cos()) as i64;
ellipse.curr_point.x =
(ellipse.centre.x as f64 + radius * (pos * ellipse.direction).sin()) as i64;
ellipse.curr_point.y =
(ellipse.centre.y as f64 + radius * (pos * ellipse.direction).cos()) as i64;
}
// Get distance and nearest point for each point on the canvas
@ -215,7 +218,8 @@ fn generate_points(width: u16, height: u16, num_cells: usize) -> Vec<Ellipse> {
height: 0.0,
width: 0.0,
angle: 0.0,
curr_point: Point { x: 0, y: 0 }
curr_point: Point { x: 0, y: 0 },
direction: 0.0
};
num_cells
];
@ -226,6 +230,12 @@ fn generate_points(width: u16, height: u16, num_cells: usize) -> Vec<Ellipse> {
ellipse.height = rand::thread_rng().gen_range(1.0..height as f64 / 5.0);
ellipse.width = rand::thread_rng().gen_range(1.0..width as f64 / 5.0);
ellipse.angle = rand::thread_rng().gen_range(0.0..2.0 * PI);
let direction = rand::thread_rng().gen_range(0..=1);
if direction == 1 {
ellipse.direction = 1.0;
} else {
ellipse.direction = -1.0;
}
}
ellipses