Robert Garrett
70f2313766
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37 lines
1.4 KiB
Rust
37 lines
1.4 KiB
Rust
use bevy::prelude::*;
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use crate::objects::AsteroidSize;
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/// Signals that the player's ship has been destroyed.
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///
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/// Produced by the [`fn collision_listener(...)`](`crate::physics::collision_listener`)
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/// system when the player collides with an asteroid. They are consumed by [`fn ship_impact_listener(...)`](`crate::objects::ship_impact_listener`).
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#[derive(Event)]
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pub(crate) struct ShipDestroy;
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/// Signals that a particular asteroid has been destroyed.
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///
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/// Produced by the [`fn collision_listener(...)`](`crate::physics::collision_listener`)
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/// system when bullets contact asteroids. It is consumed by [`fn split_asteroid(...)`](`crate::objects::spawn_asteroid`)
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/// system, which re-emits [spawn events](`SpawnAsteroid`).
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#[derive(Event)]
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pub(crate) struct AsteroidDestroy(pub Entity);
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/// Signals that an asteroid needs to be spawned and provides the parameters
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/// for that action.
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///
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/// Produced by the [`tick_asteroid_manager(...)`](`crate::machinery::tick_asteroid_manager`)
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/// system and consumed by the [`spawn_asteroid(...)`](`crate::objects::spawn_asteroid`) system.
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#[derive(Event)]
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pub struct SpawnAsteroid {
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pub pos: Vec2,
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pub vel: Vec2,
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pub size: AsteroidSize,
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}
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/// Signals that a particular bullet has been destroyed (after it strikes an Asteroid).
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///
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/// TODO: Maybe use it for lifetime expiration (which is also a TODO item).
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#[derive(Event)]
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pub(crate) struct BulletDestroy(pub Entity);
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