69 lines
2.1 KiB
Rust
69 lines
2.1 KiB
Rust
use bevy::prelude::*;
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// Define the player component
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#[derive(Component)]
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pub struct Player {
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pub movement_speed: f32,
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pub rotation_speed: f32,
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}
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// Define the player movement system
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pub fn movement(
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time: Res<Time>,
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keys: Res<Input<KeyCode>>,
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mut windows: Query<&mut Window>,
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mut query: Query<(&Player, &mut Transform)>,
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) {
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let (player, mut transform) = query.single_mut();
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let mut rotation_factor = 0.;
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let mut movement_factor = 0.;
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let mut blink_factor = 0.;
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if keys.pressed(KeyCode::W) {
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movement_factor += 1.;
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}
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if keys.pressed(KeyCode::S) {
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movement_factor -= 1.;
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}
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if keys.pressed(KeyCode::A) {
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rotation_factor += 1.;
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}
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if keys.pressed(KeyCode::D) {
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rotation_factor -= 1.;
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}
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if keys.pressed(KeyCode::Space) {
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blink_factor += 4.;
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}
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if keys.pressed(KeyCode::Space) && keys.just_released(KeyCode::Right) {
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blink_factor += 4.;
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};
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// Get the player's *forward* vector
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let movement_direction = transform.rotation * Vec3::Y;
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// Initialise the movement distance variable (to bring it into scope)
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let movement_distance: f32;
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if blink_factor == 0. {
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movement_distance = movement_factor * player.movement_speed * time.delta_seconds();
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// Change the player rotation around the Z-axis only if not blinking
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transform.rotate_z(rotation_factor * player.rotation_speed * time.delta_seconds());
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} else {
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movement_distance = blink_factor * player.movement_speed * 0.01;
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}
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// Create the translation using the movement direction and distance
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let translation_delta = movement_direction * movement_distance;
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// Update the player translation with the created translation
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transform.translation += translation_delta;
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// Define the bounds of play (the window size)
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let window = windows.single_mut();
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let bounds = Vec3::from((
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Vec2::new(window.resolution.width(), window.resolution.height()) / 2.,
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0.,
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));
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transform.translation = transform.translation.min(bounds).max(-bounds);
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}
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