Random Extension Methods - fallenblood7080/Unity-Extension-Method GitHub Wiki
- GetRandomItems (List)
- GetRandomItems (Array)
- GetRandomPointInCircle (Vector2)
- GetRandomPointInSphere (Vector3)
Retrieves a random selection of items from a List.
// Example: Get 3 random items from a List<int>
List<int> itemList = new List<int> { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
List<int> randomItems = itemList.GetRandomItems(3);List<T> result = itemList.GetRandomItems(count);| Parameter | Data Type | Description |
|---|---|---|
| items | List<T> | The List of items from which to select randomly. |
| count | int | The number of random items to retrieve from the List. |
This extension method retrieves a random selection of items, containing 'count' elements, randomly selected from the input List using the Fisher-Yates shuffle algorithm.
// Get 3 random items from a List<int>
List<int> itemList = new List<int> { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
List<int> randomItems = itemList.GetRandomItems(3);
// Result: randomItems = [6, 2, 8] (Note: This result may vary as it is random)In this example, the GetRandomItems method is used to get 3 random items from a List.
Retrieves a random selection of items from an array.
// Example: Get 2 random items from an array of strings
string[] stringArray = { "apple", "banana", "cherry", "date", "elderberry" };
string[] randomItems = stringArray.GetRandomItems(2);T[] result = items.GetRandomItems(count);| Parameter | Data Type | Description |
|---|---|---|
| items | T[] | The array of items from which to select randomly. |
| count | int | The number of random items to retrieve from the array. |
This extension method retrieves a random selection of items, containing 'count' elements, randomly selected from the input array using the Fisher-Yates shuffle algorithm.
// Get 2 random items from an array of strings
string[] stringArray = { "apple", "banana", "cherry", "date", "elderberry" };
string[] randomItems = stringArray.GetRandomItems(2);
// Result: randomItems = ["date", "banana"] (Note: This result may vary as it is random)In this example, the GetRandomItems method is used to get 2 random items from an array of strings.
Generates a random 2D point within a circular area defined by a center and radius.
// Example: Get a random point in a circle with center (0, 0) and radius 5
Vector2 center = new Vector2(0, 0);
float radius = 5f;
Vector2 randomPoint = center.GetRandomPointInCircle(radius);Vector2 result = center.GetRandomPointInCircle(radius);| Parameter | Data Type | Description |
|---|---|---|
| center | Vector2 | The center of the circle in 2D space. |
| radius | float | The radius of the circle, determining the distance from the center to the generated point. |
This extension method generates a random Vector2 point within the specified circle using polar coordinates.
// Get a random point in a circle with center (0, 0) and radius 5
Vector2 center = new Vector2(0, 0);
float radius = 5f;
Vector2 randomPoint = center.GetRandomPointInCircle(radius);
// Result: randomPoint = (2.1, 3.8) (Note: This result may vary as it is random)In this example, the GetRandomPointInCircle method is used to get a random point in a circle with center (0, 0) and radius 5.
Generates a random 3D point within a spherical volume defined by a center and radius.
// Example: Get a random point in a sphere with center (0, 0, 0) and radius 10
Vector3 center = new Vector3(0, 0, 0);
float radius = 10f;
Vector3 randomPoint = center.GetRandomPointInSphere(radius);Vector3 result = center.GetRandomPointInSphere(radius);| Parameter | Data Type | Description |
|---|---|---|
| center | Vector3 | The center of the sphere in 3D space. |
| radius | float | The radius of the sphere, determining the distance from the center to the generated point. |
This extension method generates a random Vector3 point within the specified sphere using spherical coordinates.
// Get a random point in a sphere with center (0, 0, 0) and radius 10
Vector3 center = new Vector3(0, 0, 0);
float radius = 10f;
Vector3 randomPoint = center.GetRandomPointInSphere(radius);
// Result: randomPoint = (-5.2, 3.6, 8.9) (Note: This result may vary as it is random)In this example, the GetRandomPointInSphere method is used to get a random point in a sphere with center (0, 0, 0) and radius 10.