add simple gui.

Cargo.toml

@@ -6,8 +6,12 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-bevy = {git = "https://github.com/bevyengine/bevy.git", rev = "b697e73"}
+bevy = {git = "https://github.com/bevyengine/bevy.git", rev = "b697e73", features = ["dynamic"]}
+bevy_egui = { path = "deps/bevy_egui-0.12.1" }
 bevy_fly_camera = "0.8.0"
 bytemuck = "*"
 rand = "*"
-futures-lite = "1.12.0"
+futures-lite = "1.12.0"
+
+[profile.release]
+debug = 1

deps/bevy_egui-0.12.1/.gitignore

@@ -0,0 +1,6 @@
+# Rust
+/target
+Cargo.lock
+
+# JetBrains
+.idea

deps/bevy_egui-0.12.1/Cargo.toml

@@ -0,0 +1,35 @@
+[package]
+name = "bevy_egui"
+version = "0.12.1"
+authors = ["mvlabat <[email protected]>"]
+description = "A plugin for Egui integration into Bevy"
+license = "MIT"
+edition = "2021"
+repository = "https://github.com/mvlabat/bevy_egui"
+exclude = ["assets/**/*", ".github/**/*"]
+
+[package.metadata.docs.rs]
+all-features = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[features]
+default = ["manage_clipboard", "open_url"]
+manage_clipboard = ["arboard", "thread_local"]
+multi_threaded = ["egui/multi_threaded"]
+open_url = ["webbrowser"]
+
+[dependencies]
+bevy = {git = "https://github.com/bevyengine/bevy.git", rev = "b697e73", features = ["dynamic"]}
+egui = { version = "0.17", features = ["convert_bytemuck"] }
+webbrowser = { version = "0.5.5", optional = true }
+winit = { version = "0.26.0", features = ["x11"], default-features = false }
+bytemuck = { version = "1.7.0", features = ["derive"] }
+wgpu = "0.12.0"
+
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+arboard = { version = "2.0.1", optional = true }
+thread_local = { version = "1.1.0", optional = true }
+
+[dev-dependencies]
+once_cell = "1.9.0"
+version-sync = "0.9.2"

deps/bevy_egui-0.12.1/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Vladyslav Batyrenko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

deps/bevy_egui-0.12.1/src/egui.wgsl

@@ -0,0 +1,51 @@
+struct EguiTransform {
+    scale: vec2<f32>;
+    translation: vec2<f32>;
+};
+
+[[group(0), binding(0)]]
+var<uniform> egui_transform: EguiTransform;
+
+struct VertexOutput {
+    [[location(0)]] uv: vec2<f32>;
+    [[location(1)]] color: vec4<f32>;
+    [[builtin(position)]] pos: vec4<f32>;
+};
+
+// 0-1 linear  from  0-255 sRGB
+fn linear_from_srgb(srgb: vec3<f32>) -> vec3<f32> {
+    let cutoff = vec3<f32>(srgb < vec3<f32>(10.31475));
+    let lower = srgb / vec3<f32>(3294.6);
+    let higher = pow((srgb + vec3<f32>(14.025)) / vec3<f32>(269.025), vec3<f32>(2.4));
+    return mix(higher, lower, cutoff);
+}
+
+// 0-1 linear  from  0-255 sRGBA
+fn linear_from_srgba(srgba: vec4<f32>) -> vec4<f32> {
+    return vec4<f32>(linear_from_srgb(srgba.rgb), srgba.a / 255.0);
+}
+
+[[stage(vertex)]]
+fn vs_main(
+    [[location(0)]] position: vec2<f32>,
+    [[location(1)]] uv: vec2<f32>,
+    [[location(2)]] color: vec4<f32>, // 0-1 range
+) -> VertexOutput {
+    var out: VertexOutput;
+    out.uv = uv;
+    out.color = linear_from_srgba(color * 255.0);
+    out.pos = vec4<f32>(position * egui_transform.scale + egui_transform.translation, 0.0, 1.0);
+    return out;
+}
+
+[[group(1), binding(0)]]
+var t_egui: texture_2d<f32>;
+[[group(1), binding(1)]]
+var s_egui: sampler;
+
+[[stage(fragment)]]
+fn fs_main(in: VertexOutput) -> [[location(0)]] vec4<f32> {
+    let color = in.color * textureSample(t_egui, s_egui, in.uv);
+
+    return color;
+}