feat(engine): store objects in engine

1 files changed, 27 insertions, 2 deletions

diff --git a/engine/src/object.rs b/engine/src/object.rs
index a650abc..11ba7e6 100644
--- a/engine/src/object.rs
+++ b/engine/src/object.rs
@@ -10,6 +10,7 @@ use crate::vertex::Vertex;
 #[derive(Debug)]
 pub struct Object
 {
+    id: Id,
     renderable: Renderable,
 }
 
@@ -19,7 +20,7 @@ impl Object
     ///
     /// # Errors
     /// Will return `Err` if shader creation fails or if shader program linking fails.
-    pub fn new(vertices: &[Vertex]) -> Result<Self, Error>
+    pub fn new(id: Id, vertices: &[Vertex]) -> Result<Self, Error>
     {
         let vertex_shader = Shader::new(ShaderKind::Vertex);
 
@@ -52,7 +53,14 @@ impl Object
 
         let renderable = Renderable::new(shader_program, vertices);
 
-        Ok(Self { renderable })
+        Ok(Self { id, renderable })
+    }
+
+    /// Returns the object ID.
+    #[must_use]
+    pub fn id(&self) -> Id
+    {
+        self.id
     }
 
     pub(crate) fn renderable(&self) -> &Renderable
@@ -74,3 +82,20 @@ pub enum Error
     #[error("Failed to link shader program")]
     LinkShaderProgramFailed(#[source] ShaderError),
 }
+
+/// Object ID.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct Id
+{
+    id: u16,
+}
+
+impl Id
+{
+    /// Returns a new object ID.
+    #[must_use]
+    pub fn new(id: u16) -> Self
+    {
+        Self { id }
+    }
+}