Working on the Light Struct#2
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elpiel
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Oct 2, 2021
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Very good progress!
There are a few minor things and a couple of general I'm going to mention here:
- All structs should be renamed, since they all, by default, start with capital letters (it's a
serde/serde_xmlimpl detail) - All fields & structs must be
pub - I've realised that I've forgotten to add the default values as a documentation, so make sure to include this as well in the docs.
- Can you also add tests please?
You can add a raw string of xml deserialized into a struct which will also check for the default values. So the xml won't have the values set but you will expect them in the resulting deserialize struct.
| #[derive(Debug, Serialize, Deserialize)] | ||
| pub struct Light {} | ||
| pub struct Light { | ||
| // A unique name for the light |
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- Please use doc comments
///so that the information shows in the documentation.
| pub struct Light { | ||
| // A unique name for the light | ||
| name: String, | ||
| // The light type: point, directional spot |
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- there is a missing comma
point, directional, spot
| // A unique name for the light | ||
| name: String, | ||
| // The light type: point, directional spot | ||
| #[serde(default)] |
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- The default should be set up using
serde. - Use an Enum since the available options are only 3
point,directional,spot
You might need to use https://crates.io/crates/parse-display for this. I'm not aware how Enums with no data are deserialized so you have to double-check this. - Make sure to rename the
light_typetotypewith anserdeattribute
| cast_shadows: Option<bool>, | ||
| // Scale factor to set the relative power of a light | ||
| #[serde(default)] | ||
| intensity: Option<f64>, |
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- The default for this value is
1, right now withserde(default)it isNone.
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| diffuse: Option<Color>, | ||
| // Specular light color | ||
| #[serde(default)] | ||
| specular: Option<Color>, |
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- Please add default functions that set the correct values for
diffuse(1 1 1 1) &specular(0.1 0.1 0.1 1). This could be achieved by adding associated functions toColorfor the default values, likeColor::specular_default()
| attenuation: Vec<Attenuation>, | ||
| // Direction of light, only applicable for spot and directional light | ||
| #[serde(default)] | ||
| direction: Vec<i32>, |
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Vec3 actually means a mathematical vector.
You can use a tuple struct and eventually we might use something like nalgebra's structs but this is not required for the moment
https://docs.rs/nalgebra/0.29.0/nalgebra/base/type.Vector3.html
- Please add proper default.
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| pub struct Attenuation { | ||
| range: f64, | ||
| linear: Option<f64>, | ||
| constant: Option<f64>, | ||
| quadratic: Option<f64>, | ||
| } | ||
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| // Spot light parameters | ||
| pub struct Spot { | ||
| inner_angle: f64, | ||
| outer_angle: f64, | ||
| falloff: f64, | ||
| } | ||
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| // A position and orientation with respect to the frame named in relative_to attribute | ||
| pub struct Pose { | ||
| relative_to: Option<String>, | ||
| } | ||
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| // Unit struct for tpe `color` | ||
| struct Color(u8, u8, u8); |
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- structs are missing the documentation of the fields.
-
deriveDebug, Deser. & Ser.
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| // A position and orientation with respect to the frame named in relative_to attribute | ||
| pub struct Pose { | ||
| relative_to: Option<String>, |
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-
Posehas value as well
<pose relative_to="...">value</pose>
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I found an example of how to force attributes (will be done in future PRs though as it requires a lot of enums) and use an enum for #[derive(Debug, Serialize, Deserialize, PartialEq)]
enum PitchType { FourSeam, TwoSeam, Changeup, Cutter, Curve, Slider, Knuckle, Pitchout }You can see the documentation of serde_xml: |
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Hey, @elpiel can you take a look at this PR and give comments on what needs improvement? The other two should be ready by the end of today.