Enum VelocityMode

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pub enum VelocityMode {
    Radial {
        speed_min: f32,
        speed_max: f32,
    },
    Directional {
        direction: Vec3,
        speed_min: f32,
        speed_max: f32,
        spread_radians: f32,
    },
    Normal {
        speed_min: f32,
        speed_max: f32,
        inward: bool,
    },
    Random {
        speed_min: f32,
        speed_max: f32,
    },
    Orbital {
        tangent_speed: f32,
        upward_speed: f32,
    },
    Fixed(Vec3),
}

Expand description

How the initial velocity of a spawned particle is computed.

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Radial

Radially outward from the emitter origin, with random spread.

Fields

§speed_min: f32

§speed_max: f32

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Directional

Along the emitter’s local +Y axis, with a cone spread.

Fields

§direction: Vec3

§speed_min: f32

§speed_max: f32

§spread_radians: f32

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Normal

Along the surface normal at the spawn point.

Fields

§speed_min: f32

§speed_max: f32

§inward: bool

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Random

Completely random direction in a sphere.

Fields

§speed_min: f32

§speed_max: f32

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Orbital

Orbital around the emitter Y axis.

Fields

§tangent_speed: f32

§upward_speed: f32

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Fixed(Vec3)

Fixed velocity vector.

Implementations§

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impl VelocityMode

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pub fn sample(&self, spawn_pos: Vec3, spawn_normal: Vec3, rng: &mut u64) -> Vec3

Trait Implementations§

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impl Clone for VelocityMode

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fn clone(&self) -> VelocityMode

Returns a duplicate of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for VelocityMode

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for VelocityMode

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.

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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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