41 lines
987 B
Rust
41 lines
987 B
Rust
use derive_builder::Builder;
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use crate::tuples::{Color, Tuple};
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#[derive(Builder, Clone, Debug, Default, PartialEq)]
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#[builder(default)]
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pub struct PointLight {
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pub position: Tuple,
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#[builder(setter(into))]
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pub intensity: Color,
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}
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impl PointLight {
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/// Creates a new `PositionLight` at the given `position` and with the given
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/// `intensity`.
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///
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/// # Examples
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/// ```
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/// use rtchallenge::{
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/// lights::PointLight,
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/// tuples::{Color, Tuple},
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/// WHITE,
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/// };
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///
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/// let intensity = WHITE;
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/// let position = Tuple::point(0., 0., 0.);
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/// let light = PointLight::new(position, intensity);
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/// assert_eq!(light.position, position);
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/// assert_eq!(light.intensity, intensity);
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/// ```
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pub fn new<C>(position: Tuple, intensity: C) -> PointLight
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where
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C: Into<Color>,
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{
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PointLight {
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position,
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intensity: intensity.into(),
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}
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}
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}
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