2d_text_gizmos/
2d_text_gizmos.rs

1//! Example demonstrating text gizmos.
2
3use bevy::color::palettes::css::{BLUE, GREEN, RED, YELLOW};
4use bevy::diagnostic::{DiagnosticsStore, FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin};
5use bevy::math::Isometry2d;
6use bevy::prelude::*;
7use bevy::window::{PresentMode, WindowResolution};
8use bevy::winit::WinitSettings;
9
10const TEXT_COUNT: usize = 50;
11const START_X: f32 = -800.0;
12const START_Y: f32 = 200.0;
13const X_STEP: f32 = 250.0;
14const Y_STEP: f32 = 50.0;
15
16fn main() {
17    App::new()
18        .insert_resource(WinitSettings::continuous())
19        .add_plugins((
20            DefaultPlugins.set(WindowPlugin {
21                primary_window: Some(Window {
22                    present_mode: PresentMode::AutoNoVsync,
23                    resolution: WindowResolution::new(1920, 1080).with_scale_factor_override(1.0),
24                    ..default()
25                }),
26                ..default()
27            }),
28            LogDiagnosticsPlugin::default(),
29            FrameTimeDiagnosticsPlugin::default(),
30        ))
31        .add_systems(Startup, setup)
32        .add_systems(Update, (draw_labels, draw_all_glyphs))
33        .run();
34}
35
36fn setup(mut commands: Commands, mut gizmo_config_store: ResMut<GizmoConfigStore>) {
37    commands.spawn(Camera2d);
38
39    let (config, _) = gizmo_config_store.config_mut::<DefaultGizmoConfigGroup>();
40
41    config.line.width = 1.;
42}
43
44fn draw_labels(mut text_gizmos: Gizmos, diagnostic: Res<DiagnosticsStore>) {
45    let colors = [RED, GREEN, BLUE, YELLOW];
46    for i in 0..TEXT_COUNT {
47        let row = i / 5;
48        let col = i % 5;
49        let color = colors[i % 4];
50        text_gizmos.text_2d(
51            Isometry2d {
52                translation: Vec2::new(
53                    START_X + col as f32 * X_STEP,
54                    START_Y - row as f32 * Y_STEP,
55                ),
56                rotation: Rot2::degrees(2.),
57            },
58            &format!("label {i}"),
59            25.,
60            Vec2::ZERO,
61            color,
62        );
63    }
64
65    if let Some(fps) = diagnostic.get(&FrameTimeDiagnosticsPlugin::FPS)
66        && let Some(fps_smoothed) = fps.smoothed()
67    {
68        text_gizmos.text_2d(
69            Isometry2d::from_translation(Vec2::new(600., START_Y + 150.)),
70            &format!("fps: {:.1}", fps_smoothed),
71            25.,
72            Vec2::ZERO,
73            Color::WHITE,
74        );
75    }
76
77    text_gizmos.text_2d(
78        Isometry2d::from_translation(Vec2::new(-300., START_Y + 200.)),
79        "lxgh",
80        150.,
81        Vec2::ZERO,
82        Color::WHITE,
83    );
84
85    text_gizmos.text_2d(
86        Isometry2d::from_translation(Vec2::new(
87            -300.,
88            START_Y - TEXT_COUNT as f32 / 5.0 * Y_STEP - 100.,
89        )),
90        "a\tb\tcd\tef",
91        50.,
92        Vec2::ZERO,
93        Color::WHITE,
94    );
95}
96
97const ALL_GLYPHS: &str = " !\"#$%&'()*\n\
98+,-./012345\n\
996789:;<=>?@\n\
100ABCDEFGHIJK\n\
101LMNOPQRSTUV\n\
102WXYZ[\\]^_`a\n\
103bcdefghijkl\n\
104mnopqrstuvw\n\
105xyz{|}~";
106
107fn draw_all_glyphs(mut text_gizmos: Gizmos) {
108    text_gizmos.text_2d(
109        Isometry2d::from_xy(600., 0.),
110        ALL_GLYPHS,
111        30.0,
112        Vec2::ZERO,
113        Color::WHITE,
114    );
115}
2d_text_gizmos/2d_text_gizmos.rs

2d_text_gizmos/
2d_text_gizmos.rs
