Filter class
Contains contact filtering data.
class Filter { /** * Collision category bits. */ int categoryBits; /** * Collision mask bits. These are the categories that this shape would accept * for collision. */ int maskBits; /** * Collision groups allow a certain group of objects to never collide * (negative) or always collide (positive). A groupIndex value of 0 means no * collision group. */ int groupIndex; /** * Constructs a new filter with everything set to 0. */ Filter() : categoryBits = 0, maskBits = 0, groupIndex = 0 { } /** * Constructs a new Filter that is a copy of the other filter. */ Filter.copy(Filter other) : categoryBits = other.categoryBits, maskBits = other.maskBits, groupIndex = other.groupIndex { } /** * Sets this filter equal to the given filter. */ void setFrom(Filter other) { categoryBits = other.categoryBits; maskBits = other.maskBits; groupIndex = other.groupIndex; } }
Constructors
new Filter() #
Constructs a new filter with everything set to 0.
Filter() : categoryBits = 0, maskBits = 0, groupIndex = 0 { }
Properties
int categoryBits #
Collision category bits.
int categoryBits;
int groupIndex #
Collision groups allow a certain group of objects to never collide (negative) or always collide (positive). A groupIndex value of 0 means no collision group.
int groupIndex;
int maskBits #
Collision mask bits. These are the categories that this shape would accept for collision.
int maskBits;
final Type runtimeType #
A representation of the runtime type of the object.
external Type get runtimeType;
Operators
bool operator ==(other) #
The equality operator.
The default behavior for all Object
s is to return true if and
only if this
and
other are the same object.
If a subclass overrides the equality operator it should override
the hashCode
method as well to maintain consistency.
bool operator ==(other) => identical(this, other);
Methods
new Filter() #
Constructs a new filter with everything set to 0.
Filter() : categoryBits = 0, maskBits = 0, groupIndex = 0 { }
new Filter.copy(Filter other) #
Constructs a new Filter that is a copy of the other filter.
Filter.copy(Filter other) : categoryBits = other.categoryBits, maskBits = other.maskBits, groupIndex = other.groupIndex { }
int hashCode() #
Get a hash code for this object.
All objects have hash codes. Hash codes are guaranteed to be the
same for objects that are equal when compared using the equality
operator ==
. Other than that there are no guarantees about
the hash codes. They will not be consistent between runs and
there are no distribution guarantees.
If a subclass overrides hashCode
it should override the
equality operator as well to maintain consistency.
external int hashCode();
noSuchMethod(String name, List args) #
noSuchMethod
is invoked when users invoke a non-existant method
on an object. The name of the method and the arguments of the
invocation are passed to noSuchMethod
. If noSuchMethod
returns a value, that value becomes the result of the original
invocation.
The default behavior of noSuchMethod
is to throw a
noSuchMethodError
.
external Dynamic noSuchMethod(String name, List args);
const Object() #
Creates a new Object
instance.
Object
instances have no meaningful state, and are only useful
through their identity. An Object
instance is equal to itself
only.
const Object();
void setFrom(Filter other) #
Sets this filter equal to the given filter.
void setFrom(Filter other) { categoryBits = other.categoryBits; maskBits = other.maskBits; groupIndex = other.groupIndex; }
String toString() #
Returns a string representation of this object.
external String toString();