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If we try to write to an entity that doesn't exist, log it rather than completely crash the game. #2219

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If we try to write to an entity that doesn't exist, log it rather than completely crash the game. #2219

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8 changes: 6 additions & 2 deletions crates/bevy_ecs/src/system/commands.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ use crate::{
entity::{Entities, Entity},
world::World,
};
use bevy_utils::tracing::debug;
use bevy_utils::tracing::{debug, warn};
use std::marker::PhantomData;

/// A [`World`] mutation.
Expand Down Expand Up @@ -353,7 +353,11 @@ where
T: Component,
{
fn write(self: Box<Self>, world: &mut World) {
world.entity_mut(self.entity).insert(self.component);
if let Some(mut entity) = world.get_entity_mut(self.entity) {
entity.insert(self.component);
} else {
warn!("Attempt to write to entity that no longer exists");
}
}
}

Expand Down