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Mastering Unity Scripting by Alan Thorn

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Visual debugging

Debugging with abstract or textual representations of data (such as Debug.Log) is often adequate but not always optimal. Sometimes, a picture is worth a thousand words. So, for example, when coding the line-of-sight functionality for enemies and other characters that allow them to see the player and other objects whenever they come in range, it's useful to get a live and graphical representation of where the line of sight actually is in the viewport. This line of functionality is drawn in terms of lines or as a wireframe cube. Similarly, if an object is following a path, it'd be great to draw this path in the viewport that displays it as a colored line. The purpose of this is not to create visual aids that will really show in ...

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