From f4911acd7458c667f068551613aa93604f6a8630 Mon Sep 17 00:00:00 2001
From: Muhammad Nauman Raza <devraza@devraza.duckdns.org>
Date: Sun, 26 Nov 2023 23:03:29 +0000
Subject: [PATCH] chore: try to fix an error...needs fixing

---
 flake.lock  |  98 -------------------------
 flake.nix   |  28 +++++--
 src/main.rs | 208 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 227 insertions(+), 107 deletions(-)
 delete mode 100644 flake.lock

diff --git a/flake.lock b/flake.lock
deleted file mode 100644
index 1572263..0000000
--- a/flake.lock
+++ /dev/null
@@ -1,98 +0,0 @@
-{
-  "nodes": {
-    "fenix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "rust-analyzer-src": "rust-analyzer-src"
-      },
-      "locked": {
-        "lastModified": 1697178193,
-        "narHash": "sha256-LBDLUWlwSDPMA1Ui9wC9YcQEnJL0UP627RoUmtz4TTo=",
-        "owner": "nix-community",
-        "repo": "fenix",
-        "rev": "ff6c27356cbde594e598e388a32d79ef79cbe1b1",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "fenix",
-        "type": "github"
-      }
-    },
-    "nixpkgs": {
-      "locked": {
-        "lastModified": 1697009197,
-        "narHash": "sha256-viVRhBTFT8fPJTb1N3brQIpFZnttmwo3JVKNuWRVc3s=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "01441e14af5e29c9d27ace398e6dd0b293e25a54",
-        "type": "github"
-      },
-      "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
-      }
-    },
-    "root": {
-      "inputs": {
-        "fenix": "fenix",
-        "nixpkgs": "nixpkgs",
-        "utils": "utils"
-      }
-    },
-    "rust-analyzer-src": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1697098808,
-        "narHash": "sha256-OfatUxSwuzYd17IDy9eNOedwioq0dX6mOuiTghKol3s=",
-        "owner": "rust-lang",
-        "repo": "rust-analyzer",
-        "rev": "84e1d273439413ab4ca1718db0b574dffba443ce",
-        "type": "github"
-      },
-      "original": {
-        "owner": "rust-lang",
-        "ref": "nightly",
-        "repo": "rust-analyzer",
-        "type": "github"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
-    "utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1694529238,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    }
-  },
-  "root": "root",
-  "version": 7
-}
diff --git a/flake.nix b/flake.nix
index f8b8c7c..ca7e01d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,27 +1,30 @@
 {
-  description = "Rust development template using fenix";
+  description = "Rust development environment for Aspiration using fenix";
 
   inputs = {
     fenix = {
       url = "github:nix-community/fenix";
-      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
     };
     utils.url = "github:numtide/flake-utils";
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
+    nixgl.url = "github:guibou/nixGL";
   };
 
   outputs = {
     self,
-    nixpkgs,
+    nixpkgs-unstable,
     utils,
     fenix,
+    nixgl,
     ...
   }:
     utils.lib.eachDefaultSystem
     (
       system: let
-        pkgs = import nixpkgs {
+        pkgs = import nixpkgs-unstable {
           inherit system;
-          overlays = [fenix.overlays.default];
+          overlays = [fenix.overlays.default nixgl.overlay];
         };
         toolchain = pkgs.fenix.complete;
       in rec
@@ -33,7 +36,7 @@
             inherit (toolchain) cargo rustc;
           })
           .buildRustPackage {
-            pname = "template";
+            pname = "aspiration";
             version = "0.1.0";
             src = ./.;
             cargoLock.lockFile = ./Cargo.lock;
@@ -46,7 +49,14 @@
         apps.default = utils.lib.mkApp {drv = packages.default;};
 
         # Used by `nix develop`
-        devShells.default = pkgs.mkShell {
+        devShells.default = pkgs.mkShell rec {
+          shellHook = ''export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${pkgs.lib.makeLibraryPath [
+            pkgs.vulkan-loader
+            pkgs.xorg.libX11
+            pkgs.xorg.libXcursor
+            pkgs.xorg.libXi
+            pkgs.xorg.libXrandr
+          ]}"'';
           # Use nightly cargo & rustc provided by fenix. Add for packages for the dev shell here
           buildInputs = with pkgs; [
             (with toolchain; [
@@ -55,11 +65,13 @@
             xorg.libX11 xorg.libXcursor xorg.libXi xorg.libXrandr # To use the x11 feature
             libxkbcommon wayland # To use the wayland feature
 
+            udev alsa-lib vulkan-loader
+            pkgs.nixgl.nixVulkanIntel
+
             mold
             clang
             pkg-config
           ];
-
           # Specify the rust-src path (many editors rely on this)
           RUST_SRC_PATH = "${toolchain.rust-src}/lib/rustlib/src/rust/library";
         };
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..a8037a5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,209 @@
+//! Illustrates bloom post-processing in 2d.
+
+use bevy::{
+    core_pipeline::{
+        bloom::{BloomCompositeMode, BloomSettings},
+        tonemapping::Tonemapping,
+    },
+    prelude::*,
+    sprite::MaterialMesh2dBundle,
+};
+
 fn main() {
-    println!("Hello, world!");
+    App::new()
+        .add_plugins(DefaultPlugins)
+        .add_systems(Startup, setup)
+        .add_systems(Update, update_bloom_settings)
+        .run();
 }
+
+fn setup(
+    mut commands: Commands,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<ColorMaterial>>,
+    asset_server: Res<AssetServer>,
+) {
+    commands.spawn((
+        Camera2dBundle {
+            camera: Camera {
+                hdr: true, // 1. HDR is required for bloom
+                ..default()
+            },
+            tonemapping: Tonemapping::TonyMcMapface, // 2. Using a tonemapper that desaturates to white is recommended
+            ..default()
+        },
+        BloomSettings::default(), // 3. Enable bloom for the camera
+    ));
+
+    // Sprite
+    commands.spawn(SpriteBundle {
+        texture: asset_server.load("branding/bevy_bird_dark.png"),
+        sprite: Sprite {
+            color: Color::rgb(5.0, 5.0, 5.0), // 4. Put something bright in a dark environment to see the effect
+            custom_size: Some(Vec2::splat(160.0)),
+            ..default()
+        },
+        ..default()
+    });
+
+    // Circle mesh
+    commands.spawn(MaterialMesh2dBundle {
+        mesh: meshes.add(shape::Circle::new(100.).into()).into(),
+        // 4. Put something bright in a dark environment to see the effect
+        material: materials.add(ColorMaterial::from(Color::rgb(7.5, 0.0, 7.5))),
+        transform: Transform::from_translation(Vec3::new(-200., 0., 0.)),
+        ..default()
+    });
+
+    // Hexagon mesh
+    commands.spawn(MaterialMesh2dBundle {
+        mesh: meshes
+            .add(shape::RegularPolygon::new(100., 6).into())
+            .into(),
+        // 4. Put something bright in a dark environment to see the effect
+        material: materials.add(ColorMaterial::from(Color::rgb(6.25, 9.4, 9.1))),
+        transform: Transform::from_translation(Vec3::new(200., 0., 0.)),
+        ..default()
+    });
+
+    // UI
+    commands.spawn(
+        TextBundle::from_section(
+            "",
+            TextStyle {
+                font_size: 18.0,
+                color: Color::WHITE,
+                ..default()
+            },
+        )
+        .with_style(Style {
+            position_type: PositionType::Absolute,
+            bottom: Val::Px(10.0),
+            left: Val::Px(10.0),
+            ..default()
+        }),
+    );
+}
+
+// ------------------------------------------------------------------------------------------------
+
+fn update_bloom_settings(
+    mut camera: Query<(Entity, Option<&mut BloomSettings>), With<Camera>>,
+    mut text: Query<&mut Text>,
+    mut commands: Commands,
+    keycode: Res<Input<KeyCode>>,
+    time: Res<Time>,
+) {
+    let bloom_settings = camera.single_mut();
+    let mut text = text.single_mut();
+    let text = &mut text.sections[0].value;
+
+    match bloom_settings {
+        (entity, Some(mut bloom_settings)) => {
+            *text = "BloomSettings (Toggle: Space)\n".to_string();
+            text.push_str(&format!("(Q/A) Intensity: {}\n", bloom_settings.intensity));
+            text.push_str(&format!(
+                "(W/S) Low-frequency boost: {}\n",
+                bloom_settings.low_frequency_boost
+            ));
+            text.push_str(&format!(
+                "(E/D) Low-frequency boost curvature: {}\n",
+                bloom_settings.low_frequency_boost_curvature
+            ));
+            text.push_str(&format!(
+                "(R/F) High-pass frequency: {}\n",
+                bloom_settings.high_pass_frequency
+            ));
+            text.push_str(&format!(
+                "(T/G) Mode: {}\n",
+                match bloom_settings.composite_mode {
+                    BloomCompositeMode::EnergyConserving => "Energy-conserving",
+                    BloomCompositeMode::Additive => "Additive",
+                }
+            ));
+            text.push_str(&format!(
+                "(Y/H) Threshold: {}\n",
+                bloom_settings.prefilter_settings.threshold
+            ));
+            text.push_str(&format!(
+                "(U/J) Threshold softness: {}\n",
+                bloom_settings.prefilter_settings.threshold_softness
+            ));
+
+            if keycode.just_pressed(KeyCode::Space) {
+                commands.entity(entity).remove::<BloomSettings>();
+            }
+
+            let dt = time.delta_seconds();
+
+            if keycode.pressed(KeyCode::A) {
+                bloom_settings.intensity -= dt / 10.0;
+            }
+            if keycode.pressed(KeyCode::Q) {
+                bloom_settings.intensity += dt / 10.0;
+            }
+            bloom_settings.intensity = bloom_settings.intensity.clamp(0.0, 1.0);
+
+            if keycode.pressed(KeyCode::S) {
+                bloom_settings.low_frequency_boost -= dt / 10.0;
+            }
+            if keycode.pressed(KeyCode::W) {
+                bloom_settings.low_frequency_boost += dt / 10.0;
+            }
+            bloom_settings.low_frequency_boost = bloom_settings.low_frequency_boost.clamp(0.0, 1.0);
+
+            if keycode.pressed(KeyCode::D) {
+                bloom_settings.low_frequency_boost_curvature -= dt / 10.0;
+            }
+            if keycode.pressed(KeyCode::E) {
+                bloom_settings.low_frequency_boost_curvature += dt / 10.0;
+            }
+            bloom_settings.low_frequency_boost_curvature =
+                bloom_settings.low_frequency_boost_curvature.clamp(0.0, 1.0);
+
+            if keycode.pressed(KeyCode::F) {
+                bloom_settings.high_pass_frequency -= dt / 10.0;
+            }
+            if keycode.pressed(KeyCode::R) {
+                bloom_settings.high_pass_frequency += dt / 10.0;
+            }
+            bloom_settings.high_pass_frequency = bloom_settings.high_pass_frequency.clamp(0.0, 1.0);
+
+            if keycode.pressed(KeyCode::G) {
+                bloom_settings.composite_mode = BloomCompositeMode::Additive;
+            }
+            if keycode.pressed(KeyCode::T) {
+                bloom_settings.composite_mode = BloomCompositeMode::EnergyConserving;
+            }
+
+            if keycode.pressed(KeyCode::H) {
+                bloom_settings.prefilter_settings.threshold -= dt;
+            }
+            if keycode.pressed(KeyCode::Y) {
+                bloom_settings.prefilter_settings.threshold += dt;
+            }
+            bloom_settings.prefilter_settings.threshold =
+                bloom_settings.prefilter_settings.threshold.max(0.0);
+
+            if keycode.pressed(KeyCode::J) {
+                bloom_settings.prefilter_settings.threshold_softness -= dt / 10.0;
+            }
+            if keycode.pressed(KeyCode::U) {
+                bloom_settings.prefilter_settings.threshold_softness += dt / 10.0;
+            }
+            bloom_settings.prefilter_settings.threshold_softness = bloom_settings
+                .prefilter_settings
+                .threshold_softness
+                .clamp(0.0, 1.0);
+        }
+
+        (entity, None) => {
+            *text = "Bloom: Off (Toggle: Space)".to_string();
+
+            if keycode.just_pressed(KeyCode::Space) {
+                commands.entity(entity).insert(BloomSettings::default());
+            }
+        }
+    }
+}
+