feat(engine): add materials

1 files changed, 113 insertions, 0 deletions

diff --git a/engine/src/material.rs b/engine/src/material.rs
new file mode 100644
index 0000000..240d7e2
--- /dev/null
+++ b/engine/src/material.rs
@@ -0,0 +1,113 @@
+use crate::color::Color;
+
+#[derive(Debug, Clone)]
+pub struct Material
+{
+    ambient: Color<f32>,
+    diffuse: Color<f32>,
+    specular: Color<f32>,
+    shininess: f32,
+}
+
+impl Material
+{
+    #[must_use]
+    pub fn ambient(&self) -> &Color<f32>
+    {
+        &self.ambient
+    }
+
+    #[must_use]
+    pub fn diffuse(&self) -> &Color<f32>
+    {
+        &self.diffuse
+    }
+
+    #[must_use]
+    pub fn specular(&self) -> &Color<f32>
+    {
+        &self.specular
+    }
+
+    #[must_use]
+    pub fn shininess(&self) -> f32
+    {
+        self.shininess
+    }
+}
+
+/// [`Material`] builder.
+#[derive(Debug, Clone)]
+pub struct Builder
+{
+    ambient: Color<f32>,
+    diffuse: Color<f32>,
+    specular: Color<f32>,
+    shininess: f32,
+}
+
+impl Builder
+{
+    #[must_use]
+    pub fn new() -> Self
+    {
+        Self {
+            ambient: 0.2.into(),
+            diffuse: 0.5.into(),
+            specular: 1.0.into(),
+            shininess: 32.0,
+        }
+    }
+
+    #[must_use]
+    pub fn ambient(mut self, ambient: Color<f32>) -> Self
+    {
+        self.ambient = ambient;
+
+        self
+    }
+
+    #[must_use]
+    pub fn diffuse(mut self, diffuse: Color<f32>) -> Self
+    {
+        self.diffuse = diffuse;
+
+        self
+    }
+
+    #[must_use]
+    pub fn specular(mut self, specular: Color<f32>) -> Self
+    {
+        self.specular = specular;
+
+        self
+    }
+
+    #[must_use]
+    pub fn shininess(mut self, shininess: f32) -> Self
+    {
+        self.shininess = shininess;
+
+        self
+    }
+
+    /// Builds a new [`Material`].
+    #[must_use]
+    pub fn build(&self) -> Material
+    {
+        Material {
+            ambient: self.ambient.clone(),
+            diffuse: self.diffuse.clone(),
+            specular: self.specular.clone(),
+            shininess: self.shininess,
+        }
+    }
+}
+
+impl Default for Builder
+{
+    fn default() -> Self
+    {
+        Self::new()
+    }
+}