https://github.com/rparrett/bevy_two_entities

A tiny crate offering a few convenience traits for working with Bevy queries and exactly two Entities.
https://github.com/rparrett/bevy_two_entities

bevy game-development rust

Last synced: about 1 month ago
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A tiny crate offering a few convenience traits for working with Bevy queries and exactly two Entities.

• Host: GitHub
• URL: https://github.com/rparrett/bevy_two_entities
• Owner: rparrett
• License: other
• Created: 2024-02-19T15:31:54.000Z (9 months ago)
• Default Branch: main
• Last Pushed: 2024-07-16T18:00:17.000Z (4 months ago)
• Last Synced: 2024-09-27T07:04:27.953Z (about 2 months ago)
• Topics: bevy, game-development, rust
• Language: Rust
• Homepage:
• Size: 52.7 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# bevy_two_entities

[![crates.io](https://img.shields.io/crates/v/bevy_two_entities.svg)](https://crates.io/crates/bevy_two_entities)

[![docs](https://docs.rs/bevy_two_entities/badge.svg)](https://docs.rs/bevy_two_entities)

[![Following released Bevy versions](https://img.shields.io/badge/Bevy%20tracking-released%20version-lightblue)](https://bevyengine.org/learn/book/plugin-development/#main-branch-tracking)

A tiny crate offering a few convenience traits on Bevy's `Query` and `(&Query, &Query)` for scenarios involving exactly two entities.

## Examples

```rust

fn game_over(

    collisions: Query<&Collision>,

    players: Query<(), With>,

    enemies: Query<(), With>,

    mut next_state: ResMut>,

) {

    for collision in &collisions {

        if (&players, &enemies).both(collision.0, collision.1) {

            next_state.set(GameState::GameOver);

        }

    }

}

```

```rust

fn damage_enemy(

    collisions: Query<&Collision>,

    players: Query<(), With>,

    mut enemies: Query<&mut HitPoints, With>,

) {

    for collision in &collisions {

        let mut queries = (&players, &mut enemies);

        let Some((_, mut enemy_hp)) = queries.get_both_mut(collision.0, collision.1) else {

            continue;

        };

        enemy_hp.0 -= 1;

    }

}

```

## Compatibility

| `bevy_two_entities` | `bevy` |

| :--                 | :--    |

| `0.2`               | `0.14` |

| `0.1`               | `0.13` |