Enum bevy_ecs::schedule::SystemDescriptor

pub enum SystemDescriptor {
    Parallel(ParallelSystemDescriptor),
    Exclusive(ExclusiveSystemDescriptor),
}

Encapsulates a system and information on when it run in a SystemStage.

Systems can be inserted into 4 different groups within the stage:

• Parallel, accepts non-exclusive systems.
• At start, accepts exclusive systems; runs before parallel systems.
• Before commands, accepts exclusive systems; runs after parallel systems, but before their command buffers are applied.
• At end, accepts exclusive systems; runs after parallel systems’ command buffers have been applied.

Systems can have one or more labels attached to them; other systems in the same group can then specify that they have to run before or after systems with that label using the before and after methods.

Example

#[derive(SystemLabel, Debug, Clone, PartialEq, Eq, Hash)]
struct Something;

SystemStage::parallel()
    .with_system(do_something.label(Something))
    .with_system(do_the_other_thing.after(Something))
    .with_system(do_something_else.exclusive_system().at_end());

Variants

Parallel(ParallelSystemDescriptor)

Tuple Fields

0: ParallelSystemDescriptor

Exclusive(ExclusiveSystemDescriptor)

Tuple Fields

0: ExclusiveSystemDescriptor

Trait Implementations

impl IntoSystemDescriptor<()> for SystemDescriptor

fn into_descriptor(self) -> SystemDescriptor