From bd5713febf43703c193c1de0118f6c87fbc54148 Mon Sep 17 00:00:00 2001
From: nullprop <git@nullprop.sh>
Date: Fri, 27 Jan 2023 02:40:40 +0200
Subject: [PATCH] remove unused instance code

---
 src/core/state.rs | 40 ++++------------------------------------
 1 file changed, 4 insertions(+), 36 deletions(-)

diff --git a/src/core/state.rs b/src/core/state.rs
index f25a592..341d566 100644
--- a/src/core/state.rs
+++ b/src/core/state.rs
@@ -12,8 +12,6 @@ use super::resources;
 use super::texture::Texture;
 use crate::shaders::preprocessor::preprocess_wgsl;
 
-const NUM_INSTANCES_PER_ROW: u32 = 1;
-
 pub struct State {
     pub size: winit::dpi::PhysicalSize<u32>,
 
@@ -220,40 +218,10 @@ impl State {
         .await
         .unwrap();
 
-        let instances: Vec<Instance>;
-        if NUM_INSTANCES_PER_ROW > 1 {
-            const SPACE_BETWEEN: f32 = 3.0;
-            instances = (0..NUM_INSTANCES_PER_ROW)
-                .flat_map(|z| {
-                    (0..NUM_INSTANCES_PER_ROW).map(move |x| {
-                        let x = SPACE_BETWEEN * (x as f32 - NUM_INSTANCES_PER_ROW as f32 / 2.0);
-                        let z = SPACE_BETWEEN * (z as f32 - NUM_INSTANCES_PER_ROW as f32 / 2.0);
-
-                        let position = cgmath::Vector3 { x, y: 0.0, z };
-
-                        let rotation = if position.is_zero() {
-                            cgmath::Quaternion::from_axis_angle(
-                                cgmath::Vector3::unit_z(),
-                                cgmath::Deg(0.0),
-                            )
-                        } else {
-                            cgmath::Quaternion::from_axis_angle(
-                                position.normalize(),
-                                cgmath::Deg(45.0),
-                            )
-                        };
-
-                        Instance { position, rotation }
-                    })
-                })
-                .collect::<Vec<_>>();
-        } else {
-            instances = [Instance {
-                position: [0.0, 0.0, 0.0].into(),
-                rotation: cgmath::Quaternion::one(),
-            }]
-            .into();
-        }
+        let instances = vec![Instance {
+            position: [0.0, 0.0, 0.0].into(),
+            rotation: cgmath::Quaternion::one(),
+        }];
 
         let instance_data = instances.iter().map(Instance::to_raw).collect::<Vec<_>>();
         let instance_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {