public static IEnumerable <TResult> Zip <T1, T2, TResult>(IEnumerable <T1> enum1, IEnumerable <T2> enum2, Func <T1, T2, TResult> transform)
{
ThrowIf.ArgumentIsNull(enum1, "enum1");
ThrowIf.ArgumentIsNull(enum2, "enum2");
IEnumerator <T1> e1 = enum1.GetEnumerator();
IEnumerator <T2> e2 = enum2.GetEnumerator();
while (e1.MoveNext() && e2.MoveNext())
{
yield return(transform(e1.Current, e2.Current));
}
}
public static bool TryGetValueSafe <TValue>(this IList <TValue> array, int index, out TValue value)
{
ThrowIf.ArgumentIsNull(array, "array");
if (index < 0 || index >= array.Count)
{
value = default(TValue);
return(false);
}
value = array[index];
return(true);
}
public static float MaxAbs <T>(this IEnumerable <T> enumerable, Func <T, float> selector)
{
ThrowIf.ArgumentIsNull(selector, "selector");
var max = 0.0f;
foreach (float item in enumerable.Select(selector))
{
if (Mathf.Abs(item) > Mathf.Abs(max))
{
max = item;
}
}
return(max);
}
public static Vector2 MaxAbs <T>(this IEnumerable <T> enumerable, Func <T, Vector2> selector)
{
ThrowIf.ArgumentIsNull(selector, "selector");
Vector2 max = Vector2.zero;
foreach (Vector2 item in enumerable.Select(selector))
{
if (Mathf.Abs(item.x) > Mathf.Abs(max.x))
{
max.x = item.x;
}
if (Mathf.Abs(item.y) > Mathf.Abs(max.y))
{
max.y = item.y;
}
}
return(max);
}
public static void DrawLines(Vector2[] points, Color[] colors, float width)
{
ThrowIf.ArgumentIsNull(points, "points");
ThrowIf.ArgumentIsNull(colors, "colors");
ThrowIf.False(points.Length == colors.Length, "Points and colors array must be the same length.");
for (int i = 0; i < points.Length; ++i)
{
Vector2 start = points[i];
Vector2 end = points[MathEx.Wrap(i + 1, 0, points.Length - 1)];
Color color = colors[i];
if (Mathf.Abs(start.x - end.x) > Mathf.Abs(start.y - end.y))
{
GUIEx.DrawBox(new Rect(start.x, start.y, end.x - start.x, width), color);
}
else
{
GUIEx.DrawBox(new Rect(start.x, start.y, width, end.y - start.y), color);
}
GUIEx.PopColor();
}
}
public static T FindClosestToPointOrDefault <T>(this IEnumerable <T> points, Vector3 point, Func <T, Vector3> pointSelector)
{
ThrowIf.ArgumentIsNull(points, "points");
ThrowIf.ArgumentIsNull(pointSelector, "pointSelector");
T closestItem = default(T);
float minDistance = float.MaxValue;
foreach (T item in points)
{
Vector3 pointA = pointSelector(item);
Vector3 vector = pointA - point;
float distance = vector.sqrMagnitude;
if (distance < minDistance)
{
closestItem = item;
minDistance = distance;
}
}
return(closestItem);
}
/// <summary>
/// Returns the first component of type <typeparamref name="TComponent"/> in
/// each descendent subtree.
/// </summary>
/// <typeparam name="TComponent">The type of the <see cref="Component"/>.</typeparam>
/// <param name="component">The <see cref="Component"/>.</param>
/// <returns>
/// The first component of type <typeparamref name="TComponent"/> found in
/// each descendent subtree.
/// </returns>
public static TComponent[] GetFirstComponentsInChildren <TComponent>(this Component component)
where TComponent : Component
{
ThrowIf.ArgumentIsNull(component, "component");
return(component.GetFirstComponentInChildrenInternal <TComponent>().ToArray());
}
/// <summary>
/// Returns the first component of type <typeparamref name="TComponent"/> in
/// any descendent subtree.
/// </summary>
/// <typeparam name="TComponent">The type of the <see cref="Component"/>.</typeparam>
/// <param name="component">The <see cref="Component"/>.</param>
/// <returns>
/// The first component of type <typeparamref name="TComponent"/> found in
/// any descendent subtree.
/// </returns>
public static TComponent GetFirstComponentInChildren <TComponent>(this Component component)
where TComponent : Component
{
ThrowIf.ArgumentIsNull(component, "component");
return(component.GetFirstComponentInChildrenInternal <TComponent>().FirstOrDefault());
}
public static void ArgumentIsEmpty <T>(IEnumerable <T> argument, string argumentName)
{
ThrowIf.Empty(argument, "Argument \"{0}\" should not be null or empty.", argumentName);
}
public static void ArgumentIsNull(object argument, string argumentName)
{
ThrowIf.Null(argument, "Argument \"{0}\" should not be null.", argumentName);
}
public static void Empty <T>(IEnumerable <T> obj, string message, params object[] args)
{
ThrowIf.Null(obj, message, args);
ThrowIf.False(obj.Any(), message, args);
}
public static void Null(object obj, string message, params object[] args)
{
ThrowIf.True(obj == null, message, args);
}
public static void False(bool condition, string message, params object[] args)
{
ThrowIf.True(!condition, message, args);
}