Ray2D
A ray in 2D space.
読み終わるまでの所要時間 1 分最終更新 1ヶ月前
Definition
- Type: Struct
- Namespace: UnityEngine
- Assembly: UnityEngine.CoreModule
- Implements: IFormattable
public struct Ray2D : IFormattable
Remarks
A ray is a line segment that extends from a point in space in a specified direction. Rays have a number of uses in Unity but the most common is probably raycasting. This technique involves tracing along the path of a ray from its origin to determine if it intersects with any objects. This is useful for plotting the paths of projectiles, determining lines of sight and implementing many common game mechanics.
Constructors
Constructor | Description |
|---|---|
| Ray2D(UnityEngine.Vector2,UnityEngine.Vector2) | Creates a 2D ray starting at Ray2D.origin along Ray2D.direction. |
| Ray2D(UnityEngine.Vector2@,UnityEngine.Vector2@) | Creates a 2D ray starting at Ray2D.origin along Ray2D.direction. |
Properties
Property | Description |
|---|---|
| direction | The direction of the ray in world space. |
| origin | The starting point of the ray in world space. |