Version: 2018.3 (switch to 2019.1a or 2017.4)
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Physics2D.OverlapCircleAll

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public static Collider2D[] OverlapCircleAll(Vector2 point, float radius, int layerMask = DefaultRaycastLayers, float minDepth = -Mathf.Infinity, float maxDepth = Mathf.Infinity);

Parameters

pointCenter of the circle.
radiusRadius of the circle.
layerMaskFilter to check objects only on specified 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.

Returns

Collider2D[] The cast results.

Description

Get a list of all colliders that fall within a circular area.

This function is similar to OverlapCircle except that all colliders that fall within the circle are returned. The colliders in the returned array are sorted in order of increasing Z coordinate. An empty array is returned if there are no colliders within the circle.

Note that this function will allocate memory for the returned Collider2D array. You can use OverlapCircleNonAlloc to avoid this overhead if you need to make the check frequently.

See Also: OverlapCircle, OverlapCircleNonAlloc.

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