29 lines
945 B
Rust
29 lines
945 B
Rust
use bevy::camera::CameraProjection;
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use bevy::camera::Projection::Orthographic;
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use bevy::prelude::*;
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use bevy::window::WindowResized;
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fn compute_ui_scale(window_size: Vec2) -> f32 {
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const BASE_SIZE: Vec2 = Vec2::new(1920.0, 1080.0);
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const BASE_ASPECT_RATIO: f32 = BASE_SIZE.x / BASE_SIZE.y;
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let new_aspect_ratio = window_size.x / window_size.y;
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if new_aspect_ratio > BASE_ASPECT_RATIO {
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window_size.y / BASE_SIZE.y
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} else {
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window_size.x / BASE_SIZE.x
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}
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}
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pub fn ui_update_scale_on_startup(window: Single<&Window>, mut ui_scale: ResMut<UiScale>) {
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ui_scale.0 = compute_ui_scale(window.size());
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}
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pub fn ui_scaling_system(mut resize_reader: MessageReader<WindowResized>, mut ui_scale: ResMut<UiScale>) {
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for event in resize_reader.read() {
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let dimensions = Vec2::new(event.width, event.height);
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*ui_scale = UiScale(compute_ui_scale(dimensions));
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break
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}
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} |