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bd371182 AL |
1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
c30ab7b3 SL |
11 | pub struct Point { |
12 | pub x: f32, | |
13 | pub y: f32, | |
14 | } | |
15 | ||
16 | fn distance_squared(this: &Point) -> f32 { | |
17 | #[cfg(rpass1)] | |
18 | return this.x + this.y; | |
bd371182 | 19 | |
c30ab7b3 SL |
20 | #[cfg(rpass2)] |
21 | return this.x * this.x + this.y * this.y; | |
bd371182 AL |
22 | } |
23 | ||
c30ab7b3 SL |
24 | impl Point { |
25 | pub fn distance_from_origin(&self) -> f32 { | |
26 | distance_squared(self).sqrt() | |
bd371182 AL |
27 | } |
28 | } | |
29 | ||
c30ab7b3 SL |
30 | impl Point { |
31 | pub fn translate(&mut self, x: f32, y: f32) { | |
32 | self.x += x; | |
33 | self.y += y; | |
34 | } | |
35 | } |