While trying out Bevy, I had the need for dragging and dropping sprites. Unfortunately, this does not seem to come ready made or I did not find it in the documentation. What would be the most idiom...

Currently im using the Position of two objects (comets and the ship) to detect if they collide. fn collision_detection( comets: Query<&Transform, With<Comet>>, mut ships: Query&lt...

Is it possible to get a list of components by having Entity in bevy rust? For example for debugging purposes. use bevy::prelude::*; fn main() { App::build() .add_plugins(DefaultPlugins) .add_sta...

I'm trying to use Bevy 0.3, and I'm able to use the built-in transforms easily with Camera2dComponents::default(). This is top-down 2D. The issue is trying to synchronise the player's rotation to t...

I want to be able to read and set window-settings with Bevy. I attempted to do so with a basic system: fn test_system(mut win_desc: ResMut<WindowDescriptor>) { win_desc.title = "test&qu...

I would like to be able to get the previously rendered frame and use that as a sampler in the current frame. There is a good set of example code in the Bevy repository to show me how to apply custo...

I am currently trying to use events to signal when the character jumps in my Bevy game. I want the system that handles player inputs to send a JumpedEvent which can then be received by other system...

I am trying to execute the below two queries in a bevy system function. fn move_player( mut player_query: Query<(&mut Velocity, &mut Transform, &SpriteSize, &Player), With<Pl...

I'm working on a little boids toy with Bevy, and each boid's velocity/acceleration depends on the position and velocity values of the boids around it. This means that for each boid, I want to run s...

What do I have to do to to create a mesh for bevy with the following vertices: let mut vertices : Vec<[f32; 3]> = Vec::new(); vertices.push([0.0, 0.0, 0.0]); vertices.push([1.0, 2.0, 1.0])...

I am currently working on a 3D voxel-based game and I want to have procedural generated chunks based on player movement. But running the chunk generation in a simple system results in huge FPS drop...

When attempting to print "Hello, world!" to the screen with Bevy, the text would not display until I imported a third-party font file and loaded it as an asset to use as the font value in...

In the Bevy book the following code is used: struct GreetTimer(Timer); fn greet_people( time: Res<Time>, mut timer: ResMut<GreetTimer>, query: Query<&Name, With<Person>&g...

I am learning Rust and Bevy engine, and I want to keep certain assets (such as Fonts) loaded during the entire application life-time. // Resource for fonts: #[derive(Default, Clone)] pub struct Re...

I am trying to see where the mouse is pressed so I can select my character. I have tried the following #[derive(Default)] struct State { // Set up from example mouse_button_event_reader: EventRead...

Using Res<Events<CursorMoved>> I can get the mouse position change in screen space coordinates (zero in bottom-left corner), e.g. #[derive(Default)] struct State { cursor_moved_reader:...

My laptop doesn't have a dedicated GPU. I run elementary OS 5 on this laptop, which has an integrated GPU. When I try running my beginner's Bevy app, use bevy::prelude::*; fn main() { App::build(...

I have a query system that finds an object in which the mouse is over. This is not a button, but, I wish to change the color. I'm not sure where to start. What property would I query and how would ...

Bevy, a new Rust game engine and ECS, has a feature where it "scopes" its systems based on the type of the arguments. From its docs: The parameters we pass in to a "system function&...