ddefc246b2
# Objective Added the possibility to draw arcs in 2d via gizmos ## Solution - Added `arc_2d` function to `Gizmos` - Added `arc_inner` function - Added `Arc2dBuilder<'a, 's>` - Updated `2d_gizmos.rs` example to draw an arc --------- Co-authored-by: kjolnyr <kjolnyr@protonmail.ch> Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: ira <JustTheCoolDude@gmail.com>
48 lines
1.4 KiB
Rust
48 lines
1.4 KiB
Rust
//! This example demonstrates Bevy's immediate mode drawing API intended for visual debugging.
|
|
|
|
use std::f32::consts::PI;
|
|
|
|
use bevy::prelude::*;
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
.add_systems(Startup, setup)
|
|
.add_systems(Update, system)
|
|
.run();
|
|
}
|
|
|
|
fn setup(mut commands: Commands) {
|
|
commands.spawn(Camera2dBundle::default());
|
|
}
|
|
|
|
fn system(mut gizmos: Gizmos, time: Res<Time>) {
|
|
let sin = time.elapsed_seconds().sin() * 50.;
|
|
gizmos.line_2d(Vec2::Y * -sin, Vec2::splat(-80.), Color::RED);
|
|
gizmos.ray_2d(Vec2::Y * sin, Vec2::splat(80.), Color::GREEN);
|
|
|
|
// Triangle
|
|
gizmos.linestrip_gradient_2d([
|
|
(Vec2::Y * 300., Color::BLUE),
|
|
(Vec2::new(-255., -155.), Color::RED),
|
|
(Vec2::new(255., -155.), Color::GREEN),
|
|
(Vec2::Y * 300., Color::BLUE),
|
|
]);
|
|
|
|
gizmos.rect_2d(
|
|
Vec2::ZERO,
|
|
time.elapsed_seconds() / 3.,
|
|
Vec2::splat(300.),
|
|
Color::BLACK,
|
|
);
|
|
|
|
// The circles have 32 line-segments by default.
|
|
gizmos.circle_2d(Vec2::ZERO, 120., Color::BLACK);
|
|
// You may want to increase this for larger circles.
|
|
gizmos.circle_2d(Vec2::ZERO, 300., Color::NAVY).segments(64);
|
|
|
|
// Arcs default amount of segments is linerarly interpolated between
|
|
// 1 and 32, using the arc length as scalar.
|
|
gizmos.arc_2d(Vec2::ZERO, sin / 10., PI / 2., 350., Color::ORANGE_RED);
|
|
}
|