Class DDAEnumerator
A custom enumerator used to iterate over all positions on the on a line using the DDA line algorithm efficiently.
Generally, you should use GetDDALine(Point, Point) to get an instance of this, rather than creating one yourself.
Namespace: SadRogue.Primitives
Assembly: TheSadRogue.Primitives.dll
Syntax
public sealed class DDAEnumerator : ValueType, IEnumerator<Point>, IEnumerator, IDisposable, IEnumerable<Point>, IEnumerableRemarks
This type is a struct, and as such is much more efficient when used in a foreach loop than a function returning IEnumerable<Point> by using "yield return". This type does implement IEnumerable<T>, so you can pass it to functions which require one (for example, System.LINQ). However, this will have reduced performance due to boxing of the iterator.
Constructors
DDAEnumerator(Point, Point)
Creates an enumerator which iterates over all positions on the line.
Declaration
public DDAEnumerator(Point start, Point end)Parameters
| Type | Name | Description |
|---|---|---|
| Point | start | Starting point for the line. |
| Point | end | Ending point for the line. |
Properties
Current
The current value for enumeration.
Declaration
public Point Current { get; }Property Value
| Type | Description |
|---|---|
| Point |
Methods
GetEnumerator()
Returns this enumerator.
Declaration
public DDAEnumerator GetEnumerator()Returns
| Type | Description |
|---|---|
| DDAEnumerator | This enumerator. |
MoveNext()
Advances the iterator to the next position.
Declaration
public bool MoveNext()Returns
| Type | Description |
|---|---|
| Boolean | True if the a new position on the line exists; false otherwise. |
ToEnumerable()
Obsolete.
Declaration
public IEnumerable<Point> ToEnumerable()Returns
| Type | Description |
|---|---|
| IEnumerable<Point> |