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Unnecessary mutability
author
Tomas Wenström
<tomas.wenstrom@gmail.com>
Fri, 15 Feb 2019 20:48:17 +0000
(21:48 +0100)
committer
Tomas Wenström
<tomas.wenstrom@gmail.com>
Fri, 15 Feb 2019 20:50:32 +0000
(21:50 +0100)
src/boll.rs
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diff --git
a/src/boll.rs
b/src/boll.rs
index
35dd97e
..
64be265
100644
(file)
--- a/
src/boll.rs
+++ b/
src/boll.rs
@@
-10,7
+10,7
@@
use sdl2::gfx::primitives::DrawRenderer;
pub trait Boll {
fn update(&mut self);
pub trait Boll {
fn update(&mut self);
- fn draw(&
mut
self, canvas: &mut Canvas<Window>, size: u32);
+ fn draw(&self, canvas: &mut Canvas<Window>, size: u32);
}
pub struct SquareBoll {
}
pub struct SquareBoll {
@@
-41,7
+41,7
@@
impl Boll for SquareBoll {
}
}
}
}
- fn draw(&
mut
self, canvas: &mut Canvas<Window>, size: u32) {
+ fn draw(&self, canvas: &mut Canvas<Window>, size: u32) {
canvas.set_draw_color(Color::RGBA(
255 - std::cmp::min(255, (self.vel.length() * 25.0) as u8),
(255.0 * (self.pos.x / SCREEN_WIDTH as f64)) as u8,
canvas.set_draw_color(Color::RGBA(
255 - std::cmp::min(255, (self.vel.length() * 25.0) as u8),
(255.0 * (self.pos.x / SCREEN_WIDTH as f64)) as u8,
@@
-74,7
+74,7
@@
impl Boll for CircleBoll {
self.boll.update();
}
self.boll.update();
}
- fn draw(&
mut
self, canvas: &mut Canvas<Window>, size: u32) {
+ fn draw(&self, canvas: &mut Canvas<Window>, size: u32) {
let val = 255 - std::cmp::min(255, (self.boll.vel.length() * 20.0) as u8);
canvas.filled_circle(self.boll.pos.x as i16, self.boll.pos.y as i16, size as i16, Color::RGBA(
val,
let val = 255 - std::cmp::min(255, (self.boll.vel.length() * 20.0) as u8);
canvas.filled_circle(self.boll.pos.x as i16, self.boll.pos.y as i16, size as i16, Color::RGBA(
val,