94e0e1f031
# Objective Make the examples look more uniform and more polished. following the issue #17167 ## Solution - [x] Added a minimal UI explaining how to interact with the examples only when needed. - [x] Used the same notation for interactions ex : "Up Arrow: Move Forward \nLeft / Right Arrow: Turn" - [x] Set the color to [GRAY](https://github.com/bevyengine/bevy/pull/17237#discussion_r1907560092) when it's not visible enough - [x] Changed some colors to be easy on the eyes - [x] removed the //camera comment - [x] Unified the use of capital letters in the examples. - [x] Simplified the mesh2d_arc offset calculations. ... --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Rob Parrett <robparrett@gmail.com>
46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
//! This example demonstrates how to use the `Camera::viewport_to_world_2d` method.
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use bevy::{color::palettes::basic::WHITE, prelude::*};
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_systems(Startup, setup)
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.add_systems(Update, draw_cursor)
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.run();
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}
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fn draw_cursor(
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camera_query: Single<(&Camera, &GlobalTransform)>,
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window: Single<&Window>,
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mut gizmos: Gizmos,
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) {
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let (camera, camera_transform) = *camera_query;
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let Some(cursor_position) = window.cursor_position() else {
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return;
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};
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// Calculate a world position based on the cursor's position.
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let Ok(point) = camera.viewport_to_world_2d(camera_transform, cursor_position) else {
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return;
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};
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gizmos.circle_2d(point, 10., WHITE);
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}
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fn setup(mut commands: Commands) {
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commands.spawn(Camera2d);
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// Create a minimal UI explaining how to interact with the example
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commands.spawn((
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Text::new("Move the mouse to see the circle follow your cursor."),
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Node {
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position_type: PositionType::Absolute,
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top: Val::Px(12.0),
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left: Val::Px(12.0),
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..default()
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},
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));
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}
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