40 lines
982 B
Rust
40 lines
982 B
Rust
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use super::Boid;
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use bevy::prelude::*;
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pub(crate) fn boid_border_teleport(
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mut boids: Query<&mut Transform, With<Boid>>,
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windows: Query<&Window>,
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) {
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let window = windows.get_single().unwrap();
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let width = window.resolution.width();
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let height = window.resolution.height();
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let half_width = width / 2.;
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let half_height = height / 2.;
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let left_bound = -half_width;
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let right_bound = half_width;
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let top_bound = half_height;
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let bottom_bound = -half_height;
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for mut boid_transform in &mut boids {
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let translation = &mut boid_transform.translation;
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if translation.y > top_bound {
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translation.y = bottom_bound;
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}
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if translation.y < bottom_bound {
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translation.y = top_bound;
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}
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if translation.x < left_bound {
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translation.x = right_bound;
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}
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if translation.x > right_bound {
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translation.x = left_bound;
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}
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}
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}
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