A 4X style camera for bevy.

Last update: Jan 4, 2023

Related tags

Overview

A 4X style camera for bevy. Demo

Default Key Bindings:

W / A / S / D / Arrow Keys / Mouse Left - Move along the horizontal plane
Q / E / Mouse Right - Rotate around the center
Mouse Wheel - Zoom

Example

use bevy::{prelude::*, render::camera::PerspectiveProjection};
use bevy_4x_camera::{CameraRigBundle, FourXCameraPlugin};

fn main() {
    App::build()
        .add_plugins(DefaultPlugins)
        .add_plugin(FourXCameraPlugin)
        .add_startup_system(setup.system())
        .run();
}

fn setup(commands: &mut Commands) {
    commands
        // camera
        .spawn(CameraRigBundle::default())
        .with_children(|cb| {
            cb.spawn(Camera3dBundle {
                // I recommend setting the fov to a low value to get a
                // a pseudo-orthographic perspective
                perspective_projection: PerspectiveProjection {
                    fov: 0.1,
                    ..Default::default()
                },
                transform: Transform::from_translation(Vec3::new(-20.0, 20., 0.0))
                    .looking_at(Vec3::zero(), Vec3::unit_y()),
                ..Default::default()
            });
        });
}

Version Matching

Bevy Version	`bevy_4x_camera` Version
`0.4.0`	`0.1.*`

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Comments

KeyboardConf and MouseConf have private fields, so can't be configured

Heya,

I'm trying to customize the settings of the camera, but it appears that both KeyboardConf and MouseConf have private fields. As such I can only use default() to construct them, but can't tune them.

Is this intentional? If not, would you accept a PR to change this? (or if you prefer, i can implement the builder pattern)

opened by twitchyliquid64 2
Disable keyboard/mouse inputs while user is interacting with a UI element

Heya,

I ran into an issue where interacting with a egui UI was causing movements in the camera, even though I was operating on a UI element that was above the scene.

I went digging and found a similar issue: https://github.com/aevyrie/bevy_mod_picking/issues/51

Their approach was to have a way to disable picking, so that a system could keep track of whether a GUI element was in focus and disable picking.

Could we do something similar for bevy_4x_camera ?

opened by twitchyliquid64 2
Camera strange behavior
Hi,

I have observed some strange camera behavior with the current version, it can be reproduced with the board.rs example:

[ ] when the mouse is used to rotate (right click) at the same time the keyboard is used to translate (in any direction), the camera translation is way faster than expected. By default the move_sensitivity of the keyboard is quite low so it is difficult to see the issue, but if it is set to a higher value (for example (2.0, 0.4)) the problem becomes quite obvious. Interestingly, there is no issue when keyboard is used both to translate and rotate at the same time

[ ] the zoom is not "straight" but always focuses on a point around the bottom left of the window

[ ] It took me a while to realize that I actually control the camera rig and not the camera itself. Unfortunately, if the camera and its rig are not oriented the same, the controls are totally "messed up". I think it would be nice to warn about this behavior
opened by VRichardJP 1
Issues after upgrading to bevy 0.5
All of the following issues can be replicated from examples/board.rs

[ ] Follow does not work

[ ] Keyboard movement stutters

[ ] Mouse zoom is not smooth

All of these need to be resolved before 0.2 release
opened by SarthakSingh31 2

Releases(0.1.2)

0.1.2(Jan 23, 2021)

https://crates.io/crates/bevy_4x_camera/0.1.2
Source code(tar.gz)
Source code(zip)
0.1.1(Jan 23, 2021)

https://crates.io/crates/bevy_4x_camera/0.1.1
Source code(tar.gz)
Source code(zip)

Owner

GitHub

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125 Dec 31, 2022

A 4X style camera for bevy.

Related tags

Overview

Example

Version Matching

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Comments

KeyboardConf and MouseConf have private fields, so can't be configured

Disable keyboard/mouse inputs while user is interacting with a UI element

Camera strange behavior

Issues after upgrading to bevy 0.5

Releases(0.1.2)

0.1.2(Jan 23, 2021)

0.1.1(Jan 23, 2021)

Owner

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