From ccf934c6f3c0876dcdd5f0eeafd13cf315d94dff Mon Sep 17 00:00:00 2001
From: Hanno Braun <hello@hannobraun.com>
Date: Tue, 5 Nov 2024 19:46:19 +0100
Subject: [PATCH] Add `OperationInSequence`

---
 experiments/2024-10-30/src/geometry.rs | 29 ++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/experiments/2024-10-30/src/geometry.rs b/experiments/2024-10-30/src/geometry.rs
index dbdd7668b..0f7f48acc 100644
--- a/experiments/2024-10-30/src/geometry.rs
+++ b/experiments/2024-10-30/src/geometry.rs
@@ -48,3 +48,32 @@ pub trait Operation {
     fn vertices(&self) -> Vec<Vertex>;
     fn triangles(&self) -> Vec<Triangle>;
 }
+
+pub struct OperationInSequence {
+    pub operation: Box<dyn Operation>,
+    pub previous: Option<Box<dyn Operation>>,
+}
+
+impl Operation for OperationInSequence {
+    fn vertices(&self) -> Vec<Vertex> {
+        let mut vertices = self
+            .previous
+            .as_ref()
+            .map(|op| op.vertices())
+            .unwrap_or_default();
+        vertices.extend(self.operation.vertices());
+
+        vertices
+    }
+
+    fn triangles(&self) -> Vec<Triangle> {
+        let mut triangles = self
+            .previous
+            .as_ref()
+            .map(|op| op.triangles())
+            .unwrap_or_default();
+        triangles.extend(self.operation.triangles());
+
+        triangles
+    }
+}