15 lines
1.0 KiB
Markdown
15 lines
1.0 KiB
Markdown
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---
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title: "Overview"
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date: 2019-09-14T23:08:31-07:00
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weight: 5
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---
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Bonk uses the *Transform2D* struct which is taken from the MoonTools.Core.Structs package. By extension it also uses the *Position2D* struct taken from the same package.
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A *Transform2D* is basically a way to store information about an object's location, rotation, and scale in 2-dimensional space. Transforms use matrix math to perform all of these operations at once, making them very fast.
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For memory performance purposes, shapes are implemented as structs, meaning they are value types. This means that it is much easier to deal with collision using a transform applied to a shape, rather than containing a transform within the shape.
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It is also often the case that you will have a shape attached to a game object that is offset from the object by a certain amount. A *Transform2D* can represent this information as well, since *Tranform2Ds* can be composed together. As you can see, a *Transform2D* provides a generic structure for dealing with many scenarios involving 2D space.
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