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Physics2D.OverlapAreaNonAlloc

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public static method OverlapAreaNonAlloc(pointA: Vector2, pointB: Vector2, results: Collider2D[], layerMask: int = DefaultRaycastLayers, minDepth: float = -Mathf.Infinity, maxDepth: float = Mathf.Infinity): int;
public static int OverlapAreaNonAlloc(Vector2 pointA, Vector2 pointB, Collider2D[] results, int layerMask = DefaultRaycastLayers, float minDepth = -Mathf.Infinity, float maxDepth = Mathf.Infinity);

Parameters

pointAOne corner of the rectangle.
pointBDiagonally opposite the point A corner of the rectangle.
resultsArray to receive results.
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

int Returns the number of results placed in the results array.

Description

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

This function is similar to OverlapAreaAll except that the results are returned in the supplied array. The integer return value is the number of objects that fall within the area (possibly zero) but the results array will not be resized if it doesn't contain enough elements to report all the results. The significance of this is that no memory is allocated for the results and so garbage collection performance is improved when the check is performed frequently.

See Also: OverlapArea, OverlapAreaAll.

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Copyright © 2018 Unity Technologies. Publication: 2018.1-002N. Built: 2018-12-04.
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