heron_core 5.0.2

Core components and resources to use Heron
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

use bevy::ecs::component::Component;
use bevy::math::{Vec2, Vec3};

/// Resource that defines world's gravity.
///
/// # Example
///
/// ```
/// # use bevy::prelude::*;
/// # use heron_core::*;
///
/// fn main() {
///     App::new()
///         // ... Add plugins
///         .insert_resource(Gravity::from(Vec3::new(0.0, -9.81, 0.0)))
///         // ... Add systems
///         .run();
/// }
/// ```
#[derive(Debug, Component, Copy, Clone, PartialEq)]
pub struct Gravity(Vec3);

impl Gravity {
    /// Returns the underlying vector
    #[must_use]
    pub fn vector(self) -> Vec3 {
        self.0
    }
}

impl Default for Gravity {
    fn default() -> Self {
        Self::from(Vec3::ZERO)
    }
}

impl From<Vec3> for Gravity {
    fn from(v: Vec3) -> Self {
        Self(v)
    }
}

impl From<Vec2> for Gravity {
    fn from(v: Vec2) -> Self {
        Self::from(v.extend(0.0))
    }
}

impl From<Gravity> for Vec3 {
    fn from(g: Gravity) -> Self {
        g.vector()
    }
}