Add a camera system #69

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CoCo_Sol merged 15 commits from camera into main 2024-03-02 11:18:13 +00:00
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@ -1,23 +1,23 @@
//! The file that contains all camera's systems for movement and scale.
//! This module contains the camera systems responsible for movement and scaling.
use bevy::input::mouse::{MouseScrollUnit, MouseWheel};
use bevy::prelude::*;
use crate::CurrentScene;
/// The speed of the camera movement.
const CAMERRA_SPEED_MOVEMENT: f32 = 10.;
/// The speed of camera movement.
const CAMERA_SPEED_MOVEMENT: f32 = 10.;
/// The speed of the camera scaling.
const CAMERRA_SPEED_SCALE: f32 = 0.1;
/// The speed of camera scaling.
const CAMERA_SPEED_SCALE: f32 = 0.1;
/// The min of the camera scale.
/// The minimum scale of the camera.
const MIN_SCALE: f32 = 0.5;
/// The max of the camera scale.
/// The maximum scale of the camera.
const MAX_SCALE: f32 = 5.;
/// The keys movement of the camera.
/// Key settings for camera movement.
#[derive(Resource)]
pub struct KeysMovementSettings {
/// Key to move the camera up.
@ -33,8 +33,8 @@ pub struct KeysMovementSettings {
pub left: KeyCode,
}
/// A bevy plugin for the camera.
/// It ables you to move the camera with the keyboard, and scale with the mouse.
/// A Bevy plugin for the camera.
/// Allows camera movement with the keyboard and scaling with the mouse.
pub struct CameraPlugin;
impl Plugin for CameraPlugin {
@ -46,12 +46,12 @@ impl Plugin for CameraPlugin {
}
}
/// The fonction that initialize the camera.
/// Initializes the camera.
fn init_camera(mut commands: Commands) {
commands.spawn(Camera2dBundle::default());
}
/// The fonction that initialize the key movement settings.
/// Initializes the key movement settings for the camera.
fn init_key_movement(mut commands: Commands) {
commands.insert_resource(KeysMovementSettings {
up: KeyCode::Z,
@ -61,7 +61,7 @@ fn init_key_movement(mut commands: Commands) {
});
}
/// The fonction that move the camera with the keyboard.
/// Moves the camera with keyboard input.
fn movement_system(
mut query: Query<&mut Transform, With<Camera>>,
keys: Res<Input<KeyCode>>,
@ -71,10 +71,10 @@ fn movement_system(
let mut target = Vec3::ZERO;
for key in keys.get_pressed() {
match *key {
v if v == keys_settings.up => target.y += CAMERRA_SPEED_MOVEMENT,
v if v == keys_settings.down => target.y -= CAMERRA_SPEED_MOVEMENT,
v if v == keys_settings.right => target.x += CAMERRA_SPEED_MOVEMENT,
v if v == keys_settings.left => target.x -= CAMERRA_SPEED_MOVEMENT,
v if v == keys_settings.up => target.y += CAMERA_SPEED_MOVEMENT,
v if v == keys_settings.down => target.y -= CAMERA_SPEED_MOVEMENT,
v if v == keys_settings.right => target.x += CAMERA_SPEED_MOVEMENT,
v if v == keys_settings.left => target.x -= CAMERA_SPEED_MOVEMENT,
_ => continue,
}
}
@ -83,18 +83,18 @@ fn movement_system(
}
}
/// The fonction that scale the camera with the mouse.
/// Scales the camera with mouse input.
fn scale_system(
mut scroll_evr: EventReader<MouseWheel>,
mut scroll_ev: EventReader<MouseWheel>,
mut query: Query<&mut OrthographicProjection, With<Camera>>,
) {
for ev in scroll_evr.read() {
for ev in scroll_ev.read() {
for mut projection in query.iter_mut() {
if ev.unit != MouseScrollUnit::Line {
return;
}
let future_scale = ev.y.mul_add(CAMERRA_SPEED_SCALE, projection.scale);
let future_scale = ev.y.mul_add(CAMERA_SPEED_SCALE, projection.scale);
if MIN_SCALE < future_scale && future_scale < MAX_SCALE {
projection.scale = future_scale;
}