public static RaycastHit2D[] LinecastAll (Vector2 start, Vector2 end, int layerMask= DefaultRaycastLayers, float minDepth= -Mathf.Infinity, float maxDepth= Mathf.Infinity);

Parámetros

startThe start point of the line in world space.
endThe end point of the line in world space.
layerMaskFilter to detect Colliders only on certain layers.
minDepthOnly include objects with a Z coordinate (depth) greater than or equal to this value.
maxDepthOnly include objects with a Z coordinate (depth) less than or equal to this value.

Valor de retorno

RaycastHit2D[] The cast results returned.

Descripción

Casts a line against colliders in the Scene.

A linecast is an imaginary line between two points in world space. Any object making contact with the beam can be detected and reported.

This function is similar to the Linecast function except that all colliders that are in contact with the line are reported. The line is assumed to run from its start point to its end point; colliders will be placed in the returned array in order of distance from the start of the line.

Linecasts are useful for determining lines of sight, targets hit by gunfire and for many other purposes in gameplay.

Note that this function will allocate memory for the returned RaycastHit2D array. You can use LinecastNonAlloc to avoid this overhead if you need to make linecasts frequently.

Additionally, this will also detect Collider(s) at the start of the line. In this case the line is starting inside the Collider and doesn't intersect the Collider surface. This means that the collision normal cannot be calculated in which case the collision normal returned is set to the inverse of the line vector being tested. This can easily be detected because such results are always at a RaycastHit2D fraction of zero.

See Also: LayerMask class, RaycastHit2D class, Linecast, LinecastNonAlloc, DefaultRaycastLayers, IgnoreRaycastLayer, raycastsHitTriggers.

Copyright © 2023 Unity Technologies
优美缔软件(上海)有限公司 版权所有
"Unity"、Unity 徽标及其他 Unity 商标是 Unity Technologies 或其附属机构在美国及其他地区的商标或注册商标。其他名称或品牌是其各自所有者的商标。
公安部备案号:
31010902002961