EntityMatcher class

A class that describe a way to filter entities.

There are 3 properties, each with it's own functionality. all: The entity MUST contain all of these components. any: The entity MUST contain at least one of these components. inverse: Flips the logic, so MUST becomes MUST NOT.

var matcher = EntityMatcher(all: CountComponent, PriceComponent) This matcher would match any entity that has both the CountComponent AND the Price Component.

var matcher = EntityMatcher(all: CartComponent, any: PriceComponent, CouponComponent) This matcher would match any entity that has the CartComponent, and has at least one between the PriceComponent and CouponComponent.

var matcher = EntityMatcher(all: DiscontinuedComponent, PriceComponent, reverse: true) This matcher would match any entity that DOES NOT have the DiscontinuedComponent and PriceComponent.

var matcher = EntityMatcher(any: DiscontinuedComponent, OutOfStockComponent, DisabledComponent, reverse: true) This matcher would match any entity that DOES NOT have any one of these components.

Constructors

EntityMatcher({Set<Type> all = const {}, Set<Type> any = const {}, bool reverse = false})

const

Properties

all → Set<Type>

final

any → Set<Type>

final

hashCode → int

The hash code for this object.

no setter, inherited

props → List<Object?>

The list of properties that will be used to determine whether two instances are equal.

no setter

reverse → bool

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

stringify → bool?

If set to true, the toString method will be overridden to output this instance's props.

no setter, inherited

Methods

contains(Type type) → bool

match(EntitySystem system) → List<Entity>

matches(Entity entity) → bool

matchesAll(Entity entity) → bool

matchesAny(Entity entity) → bool

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited