Clean up clippy warnings.

src/render.rs

@@ -92,7 +92,7 @@ pub fn render(layers: &Layers, resolution: f32) -> Vec<Triangle> {
 
     // Estimate triangle count: base + sides + top
     let estimated_triangles = layers.layers.len() * circle_steps as usize * 2;
-    let mut result: Vec<Triangle> = Vec::with_capacity(estimated_triangles as usize);
+    let mut result: Vec<Triangle> = Vec::with_capacity(estimated_triangles);
 
     result.append(&mut tube_base(&layers.base, &layer_vertexes[0]));
     for i in 0..layer_vertexes.len() - 1 {

src/translate.rs

@@ -6,31 +6,31 @@ use crate::mushroom::{CapStyle, Mushroom};
 fn stalk_layers(mushroom: &Mushroom, base: &Vertex, _resolution: f32) -> Vec<layers::Layer> {
     let stalk_top = Vertex::new([base[0], base[1], base[2] + mushroom.stalk_h]);
 
-    let mut result = Vec::with_capacity(2);
-    result.push(layers::Layer {
+    vec![
+        layers::Layer {
             center: *base,
             radius: mushroom.stalk_r,
-    });
-    result.push(layers::Layer {
+        },
+        layers::Layer {
             center: stalk_top,
             radius: mushroom.stalk_r,
-    });
-    result
+        },
+    ]
 }
 
 fn cap_layers_cylinder(mushroom: &Mushroom, base: &Vertex) -> Vec<layers::Layer> {
     let top = Vertex::new([base[0], base[1], base[2] + mushroom.cap_h]);
 
-    let mut result = Vec::with_capacity(2);
-    result.push(layers::Layer {
+    vec![
+        layers::Layer {
             center: *base,
             radius: mushroom.cap_r,
-    });
-    result.push(layers::Layer {
+        },
+        layers::Layer {
             center: top,
             radius: mushroom.cap_r,
-    });
-    result
+        },
+    ]
 }
 
 fn cap_layers_dome(mushroom: &Mushroom, base: &Vertex, resolution: f32) -> Vec<layers::Layer> {