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//! This library provides a simple, lightweight way of having a "flycam" style camera for
//! debugging. It's confirgurable, letting you easily enable the system locally for a camera or
//! globally for all cameras with a component and resource.
//!
//! # Bevy compatibility
//!
//! | Bevy Version | bevy-debug-camera version |
//! |--------------|---------------------------|
//! | 0.9.1        | ^0.1.0                    |
//!
//! # Examples
//!
//! You can look at the examples folder for
//! practical uses of this crate, but to get started you can simply do the following when setting
//! up your app:
//!
//! ```no_run
//! use bevy::prelude::*;
//! use bevy_debug_camera::{DebugCamera, DebugCameraPlugin};
//!
//! fn main() {
//!     App::new()
//!         .add_plugins(DefaultPlugins)
//!         .add_plugin(DebugCameraPlugin::default())
//!         .add_startup_system(setup)
//!         .run();
//! }
//!
//! fn setup(mut commands: Commands) {
//!     // ... other setup code
//!     commands
//!         .spawn(Camera3dBundle::default())
//!         .insert(DebugCamera {
//!             position: Vec3::new(-5., 1., 0.),
//!             ..default()
//!         });
//! }
//! ```
//!
//! # Bindings
//!
//! The default bindings are as follows:
//!
//! ## Mouse + Keyboard
//!
//! | Action        | Binding  |
//! |---------------|----------|
//! | Move forward  | `W`      |
//! | Move backward | `S`      |
//! | Move left     | `A`      |
//! | Move right    | `D`      |
//! | Move up       | `Lshift` |
//! | Move down     | `Space`  |
//! | Yaw           | Mouse X  |
//! | pitch         | Mouse Y  |
//! | Roll left     | `Q`      |
//! | Roll right    | `E`      |
//!
//! ## Controller
//!
//! | Action          | Binding    |
//! |-----------------|------------|
//! | Move fwd/bwd    | Lstick Y   |
//! | Move left/right | Lstick X   |
//! | Move up         | `RTrigger` |
//! | Move down       | `LTrigger` |
//! | Yaw             | Rstick X   |
//! | pitch           | Lstick Y   |
//! | Roll left       | `LBumper`  |
//! | Roll right      | `RBumper`  |
//!
//! # Configuring Plugin
//!
//! The plugin comes with some configuration options you can set on startup that use to customise
//! behaviour of the cameras in use. You can configure:
//!
//! * Keyboard bindings
//! * Gamepad bindings
//! * Accepted input
//!
//! All these customisation are exposed as resources, which are constantly read and can be modified
//! during runtime as well An example using all configuration options can be seen below and in the
//! `configuration` example:
//!
//! ```no_run
//! use bevy::prelude::*;
//! use bevy_debug_camera::{
//!     DebugCamera, DebugCameraPlugin, GamepadBindings, KeyboardBindings, DebugCameraActive,
//! };
//!
//! fn main() {
//!     App::new()
//!         .add_plugins(DefaultPlugins)
//!         // Each field in `DebugCameraPlugin` can be set directly or picked up from
//!         // default.
//!         .add_plugin(DebugCameraPlugin {
//!             gamepad_bindings: GamepadBindings {
//!                 // Overrides only the roll buttons
//!                 roll_left: GamepadButtonType::West,
//!                 roll_right: GamepadButtonType::East,
//!                 ..default()
//!             },
//!             keyboard_bindings: KeyboardBindings {
//!                 // Override WASD with arrows
//!                 fwd: KeyCode::Up,
//!                 bwd: KeyCode::Down,
//!                 left: KeyCode::Left,
//!                 right: KeyCode::Right,
//!                 ..default()
//!             },
//!             debug_camera_active: DebugCameraActive {
//!                 // Disable keyboard + mouse only
//!                 keymouse: false,
//!                 ..default()
//!             },
//!         })
//!         .add_startup_system(setup)
//!         .run();
//! }
//!
//! fn setup() {
//!     // Setup logic here...
//! }
//! ```

mod components;
mod resources;
mod systems;

pub use components::DebugCamera;
pub use resources::{ActiveGamepad, DebugCameraActive, GamepadBindings, KeyboardBindings};

use bevy::prelude::*;

#[derive(Debug, Default)]
pub struct DebugCameraPlugin {
    pub gamepad_bindings: resources::GamepadBindings,
    pub keyboard_bindings: resources::KeyboardBindings,
    pub debug_camera_active: resources::DebugCameraActive,
}

impl Plugin for DebugCameraPlugin {
    fn build(&self, app: &mut App) {
        app.insert_resource(resources::ActiveGamepad::default())
            .insert_resource(self.debug_camera_active.clone())
            .insert_resource(self.gamepad_bindings.clone())
            .insert_resource(self.keyboard_bindings.clone())
            .add_system(systems::camera_movement_system)
            .add_system(systems::camera_update_system)
            .add_system(systems::cursor_grab_system)
            .add_system(systems::gamepad_connections);
    }
}