56 lines
1.4 KiB
Markdown
56 lines
1.4 KiB
Markdown
---
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title: "AABB"
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date: 2019-12-31T14:36:00-07:00
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weight: 6
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---
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*AABB*, or axis-aligned bounding box, is defined by a minimum point and a maximum point. It is used for broad-phase collision detection. It represents a rectangular outline of the shape so we can quickly insert shapes into a *SpatialHash*.
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## Properties
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##### **public Vector2 Min**
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The minimum point of the AABB.
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##### **public Vector2 Max**
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The maximum point of the AABB.
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##### **public float Width**
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The width of the AABB.
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##### **public float Height**
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The height of the AABB.
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##### **public float Right**
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The right point of the AABB.
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##### **public float Left**
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The left point of the AABB.
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##### **public float Top**
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The top point of the AABB.
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##### **public float Bottom**
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The bottom point of the AABB.
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## Methods
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##### **public static AABB FromVertices(IEnumerable<Position2D> vertices)**
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Can be used to generate an AABB from an arbitrary collection of vertices. It is generally better to define a more efficient AABB generation method based on the properties of a particular shape, but this can be used for an arbitrary collection of vertices, like a polygon.
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##### **public static AABB Transformed(AABB aabb, Transform2D transform)**
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Efficiently transforms an AABB. Used internally by SpatialHash to quickly transform a shape's AABB.
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##### **public static bool TestOverlap(AABB a, AABB b)**
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Efficiently checks if two AABBs overlap.
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