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-rw-r--r--src/lib.rs62
1 files changed, 62 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
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+++ b/src/lib.rs
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+mod lerp;
+
+use lerp::Lerp;
+use lerp::poly::Poly;
+
+pub struct Bezier {
+ pub vx: Vec<f32>,
+ pub vy: Vec<f32>,
+ pub px: Poly,
+ pub py: Poly,
+ pub degree: usize
+}
+
+impl Bezier {
+ pub fn new() -> Bezier {
+ Bezier {
+ vx: Vec::<f32>::new(),
+ vy: Vec::<f32>::new(),
+ px: Poly::new(vec![]),
+ py: Poly::new(vec![]),
+ degree: 0,
+ }
+ }
+
+ pub fn push(&mut self, x: i32, y: i32) {
+ self.vx.push(x as f32);
+ self.vy.push(y as f32);
+ self.px = Lerp::new(self.vx.clone()).to_poly();
+ self.py = Lerp::new(self.vy.clone()).to_poly();
+ self.degree += 1;
+ }
+
+ pub fn remove(&mut self, index: usize) {
+ self.vx.remove(index);
+ self.vy.remove(index);
+ self.px = Lerp::new(self.vx.clone()).to_poly();
+ self.py = Lerp::new(self.vy.clone()).to_poly();
+ self.degree -= 1;
+ }
+
+ pub fn show_x(&self) -> String{
+ let mut s = String::new();
+ for i in 0..self.degree {
+ s.push_str(&self.vx[i].to_string());
+ if i < self.degree - 1 {
+ s.push_str(", ");
+ }
+ }
+ s
+ }
+
+ pub fn show_y(&self) -> String {
+ let mut s = String::new();
+ for i in 0..self.degree {
+ s.push_str(&self.vy[i].to_string());
+ if i < self.degree - 1 {
+ s.push_str(", ");
+ }
+ }
+ s
+ }
+}