Exercises

Don't forget to checkout the branch:

git checkout 06-basic-game

Let's review what was changed: https://github.com/vleue/bevy_workshop-rustweek-2025/compare/05-intro-to-bevy..06-basic-game

Displaying an Asteroid

File meteorBrown_big1.png has a sprite for an asteroid. Use it instead of the blue box.

Tips:

• Add a new field to the GameAssets resource for the asteroid

Player Sprite Animation

Display engine jets behind the ship when moving forward.

Tips:

• Load the new sprite in GameAssets. fire07.png is a good sprite for jets
• Spawn the jets as children sprite of the player entity with the children! macro
  • Make it invisible with the Visibility::Hidden component
  • A good starting position is Vec3::new(0.0, -40.0, 0.0)
• Toggle sprite visibility when the ship moves forward, when the player presses the W key
  • You can get children of an entity with the Children component
  • Add a new query to the control_player that can modify the Visibility component
  • When W is pressed, query the Visibility component of the first child of the Player entity

Player Acceleration

In space, there's no friction. Pressing W should make the ship accelerate in a direction, and movements should continue after the key is released.

Tips:

• Store the player velocity in a new component
• When the W key is pressed, change the velocity
• In a separate system, move the player according to its current velocity