From 0b4363ef88775c0213c66ea41f955d9701db70a2 Mon Sep 17 00:00:00 2001
From: griffi-gh <prasol258@gmail.com>
Date: Mon, 30 Jan 2023 00:39:31 +0100
Subject: [PATCH] move box to primitives

---
 src/main.rs                    |  5 +--
 src/rendering/primitives.rs    | 48 +++++++++++++++++++++++++++++
 src/rendering/selection_box.rs | 56 +++-------------------------------
 src/settings.rs                |  4 ++-
 4 files changed, 58 insertions(+), 55 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 791393c..33d15ce 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -54,7 +54,8 @@ use events::{
 use input::{init_input, process_inputs};
 use fly_controller::update_controllers;
 use rendering::{
-  selection_box::{render_selection_box, init_selection_box_buffers},
+  primitives::init_simple_box_buffers,
+  selection_box::render_selection_box,
   world::draw_world,
 };
 use block_placement::block_placement_system;
@@ -66,7 +67,7 @@ fn startup() -> Workload {
   (
     load_settings,
     load_prefabs,
-    init_selection_box_buffers,
+    init_simple_box_buffers,
     insert_lock_state,
     lock_cursor_now,
     init_input,
diff --git a/src/rendering/primitives.rs b/src/rendering/primitives.rs
index 7efa2e5..ce05f83 100644
--- a/src/rendering/primitives.rs
+++ b/src/rendering/primitives.rs
@@ -1,3 +1,7 @@
+use glium::{implement_vertex, VertexBuffer, IndexBuffer, index::PrimitiveType};
+use shipyard::{NonSendSync, UniqueView, AllStoragesView, Unique};
+use super::Renderer;
+
 pub const CUBE_VERTICES: &[f32] = &[
   // front
   0.0, 0.0, 1.0,
@@ -30,3 +34,47 @@ pub const CUBE_INDICES: &[u16] = &[
   3, 2, 6,
   6, 7, 3
 ];
+
+#[derive(Clone, Copy, Default)]
+pub struct PositionOnlyVertex {
+  pub position: [f32; 3],
+}
+implement_vertex!(PositionOnlyVertex, position);
+
+const fn box_vertices() -> [PositionOnlyVertex; CUBE_VERTICES.len() / 3] {
+  let mut arr = [PositionOnlyVertex { position: [0., 0., 0.] }; CUBE_VERTICES.len() / 3];
+  let mut ptr = 0;
+  loop {
+    arr[ptr] = PositionOnlyVertex {
+      position: [
+        CUBE_VERTICES[ptr * 3], 
+        CUBE_VERTICES[(ptr * 3) + 1], 
+        CUBE_VERTICES[(ptr * 3) + 2]
+      ]
+    };
+    ptr += 1;
+    if ptr >= CUBE_VERTICES.len() / 3 {
+      return arr
+    }
+  }
+}
+const BOX_VERTICES: &[PositionOnlyVertex] = &box_vertices();
+
+#[derive(Unique)]
+pub struct SimpleBoxBuffers(pub VertexBuffer<PositionOnlyVertex>, pub IndexBuffer<u16>);
+
+pub fn init_simple_box_buffers(
+  storages: AllStoragesView,
+  display: NonSendSync<UniqueView<Renderer>>
+) {
+  let vert = VertexBuffer::new(
+    &display.display,
+    BOX_VERTICES
+  ).unwrap();
+  let index = IndexBuffer::new(
+    &display.display,
+    PrimitiveType::TrianglesList, 
+    CUBE_INDICES
+  ).unwrap();
+  storages.add_unique_non_send_sync(SimpleBoxBuffers(vert, index));
+}
diff --git a/src/rendering/selection_box.rs b/src/rendering/selection_box.rs
index 21858d5..1cbe8cf 100644
--- a/src/rendering/selection_box.rs
+++ b/src/rendering/selection_box.rs
@@ -1,13 +1,10 @@
-use shipyard::{View, IntoIter, NonSendSync, UniqueViewMut, UniqueView, AllStoragesView, Unique};
+use shipyard::{View, IntoIter, NonSendSync, UniqueViewMut, UniqueView};
 use glium::{
   Surface, 
-  implement_vertex, 
-  IndexBuffer, 
-  index::PrimitiveType, 
-  VertexBuffer, uniform, 
   DrawParameters, 
   BackfaceCullingMode, 
   Blend, Depth, DepthTest,
+  uniform, 
 };
 use crate::{
   world::raycast::LookingAtBlock, 
@@ -15,44 +12,15 @@ use crate::{
 };
 use super::{
   RenderTarget, 
-  primitives::{CUBE_INDICES, CUBE_VERTICES}, Renderer
+  primitives::SimpleBoxBuffers,
 };
 
-#[derive(Clone, Copy, Default)]
-pub struct SelBoxVertex {
-  pub position: [f32; 3],
-}
-implement_vertex!(SelBoxVertex, position);
-
-const fn box_vertices() -> [SelBoxVertex; CUBE_VERTICES.len() / 3] {
-  let mut arr = [SelBoxVertex { position: [0., 0., 0.] }; CUBE_VERTICES.len() / 3];
-  let mut ptr = 0;
-  loop {
-    arr[ptr] = SelBoxVertex {
-      position: [
-        CUBE_VERTICES[ptr * 3], 
-        CUBE_VERTICES[(ptr * 3) + 1], 
-        CUBE_VERTICES[(ptr * 3) + 2]
-      ]
-    };
-    ptr += 1;
-    if ptr >= CUBE_VERTICES.len() / 3 {
-      return arr
-    }
-  }
-}
-const BOX_VERTICES: &[SelBoxVertex] = &box_vertices();
-
-#[derive(Unique)]
-pub struct SelectionBoxBuffers(VertexBuffer<SelBoxVertex>, IndexBuffer<u16>);
-
-//wip
 pub fn render_selection_box(
   lookat: View<LookingAtBlock>,
   camera: View<Camera>,
   mut target: NonSendSync<UniqueViewMut<RenderTarget>>, 
   program: NonSendSync<UniqueView<SelBoxShaderPrefab>>,
-  buffers: NonSendSync<UniqueView<SelectionBoxBuffers>>,
+  buffers: NonSendSync<UniqueView<SimpleBoxBuffers>>,
 ) {
   let camera = camera.iter().next().unwrap();
   let Some(lookat) = lookat.iter().next() else { return };
@@ -80,19 +48,3 @@ pub fn render_selection_box(
     }
   ).unwrap();
 }
-
-pub fn init_selection_box_buffers(
-  storages: AllStoragesView,
-  display: NonSendSync<UniqueView<Renderer>>
-) {
-  let vert = VertexBuffer::new(
-    &display.display,
-    BOX_VERTICES
-  ).unwrap();
-  let index = IndexBuffer::new(
-    &display.display,
-    PrimitiveType::TrianglesList, 
-    CUBE_INDICES
-  ).unwrap();
-  storages.add_unique_non_send_sync(SelectionBoxBuffers(vert, index));
-}
diff --git a/src/settings.rs b/src/settings.rs
index ceff83c..dee58eb 100644
--- a/src/settings.rs
+++ b/src/settings.rs
@@ -2,15 +2,17 @@ use shipyard::{Unique, AllStoragesView};
 
 #[derive(Unique)]
 pub struct GameSettings {
-  //there's a 1 chunk border of loaded but invisible around this
+  /// there's a 1 chunk border of loaded but invisible around this
   pub render_distance: u8,
   pub mouse_sensitivity: f32,
+  pub debug_draw_chunk_border: bool,
 }
 impl Default for GameSettings {
   fn default() -> Self {
     Self {
       render_distance: 5,
       mouse_sensitivity: 1.,
+      debug_draw_chunk_border: cfg!(debug_assertions),
     }
   }
 }