mirror of https://github.com/marrub--/zscript-doc
46 lines
804 B
Markdown
46 lines
804 B
Markdown
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# TextureID
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Texture IDs can be explicitly converted to integers, but not the other way
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around. You can add and subtract integers with a `textureid`, however. (This
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only works with the integer on the right hand side.)
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```
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struct TextureID
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{
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bool Exists() const;
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bool IsNull() const;
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bool IsValid() const;
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void SetInvalid();
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void SetNull();
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}
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```
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- `Exists`
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Checks if the texture exists within the texture manager at all.
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- `IsNull`
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Checks if the texture is the null index (`0`.)
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- `IsValid`
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Checks if the texture index is not the invalid index (`-1`.)
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- `SetInvalid`
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Sets the texture index to `-1`.
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- `SetNull`
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Sets the texture index to `0`.
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The proper way to zero-initialize a `textureid` is:
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```
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textureid tex;
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tex.SetNull();
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```
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<!-- EOF -->
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