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5 files changed, 128 insertions, 0 deletions

diff --git a/crates/throwshade/Cargo.toml b/crates/throwshade/Cargo.toml
new file mode 100644
index 0000000..0cc7516
--- /dev/null
+++ b/crates/throwshade/Cargo.toml
@@ -0,0 +1,22 @@
+[package]
+name = "throwshade"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+# teleia = { path = "../teleia" } # engine
+teleia = { git = "https://github.com/lcolonq/teleia" } # engine
+glam = "*" # linear algebra
+glow = "*" # gl bindings
+bitflags = "*" # C-style bitwise flags
+rand = "=0.8.5" # rng
+log = "*" # logging
+lazy_static = "*" # global constants
+strum = {version = "*", features = ["derive"]} # utility macros for enums
+wasm-bindgen = "*" # wasm bindings
+wasm-bindgen-futures = "*" # interface with async javascript
+cfg-if = "*" # less verbose cfg
\ No newline at end of file
diff --git a/crates/throwshade/index.html b/crates/throwshade/index.html
new file mode 100644
index 0000000..c3d8719
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+++ b/crates/throwshade/index.html
@@ -0,0 +1 @@
+<link data-trunk rel="rust" data-wasm-opt="2" data-target-name="throwshade" />
diff --git a/crates/throwshade/src/assets/shaders/throwshade/frag.glsl b/crates/throwshade/src/assets/shaders/throwshade/frag.glsl
new file mode 100644
index 0000000..2acc78d
--- /dev/null
+++ b/crates/throwshade/src/assets/shaders/throwshade/frag.glsl
@@ -0,0 +1,26 @@
+#version 300 es
+precision highp float;
+
+in vec2 vertex_texcoord;
+out vec4 frag_color;
+
+uniform vec2 resolution;
+
+uniform float time;
+
+uniform float bpm;
+
+uniform vec2 cursor;
+
+uniform float chat_time;
+uniform float chat_biblicality;
+
+vec4 shade(vec2);
+
+void main() {
+    vec2 inverted = vec2(vertex_texcoord.x, 1.0 - vertex_texcoord.y);
+    frag_color = shade(inverted);
+    frag_color.a = clamp(frag_color.a * 0.5, 0.0, 0.5);
+} 
+
+// "The Cutoff"
diff --git a/crates/throwshade/src/assets/shaders/throwshade/vert.glsl b/crates/throwshade/src/assets/shaders/throwshade/vert.glsl
new file mode 100644
index 0000000..e05bbb6
--- /dev/null
+++ b/crates/throwshade/src/assets/shaders/throwshade/vert.glsl
@@ -0,0 +1,22 @@
+#version 300 es
+precision highp float;
+
+out vec2 vertex_texcoord;
+
+void main() {
+    const vec2 positions[4] = vec2[](
+        vec2(-1, -1),
+        vec2(+1, -1),
+        vec2(-1, +1),
+        vec2(+1, +1)
+    );
+    const vec2 coords[4] = vec2[](
+        vec2(0, 0),
+        vec2(1, 0),
+        vec2(0, 1),
+        vec2(1, 1)
+    );
+
+    vertex_texcoord = coords[gl_VertexID];
+    gl_Position = vec4(positions[gl_VertexID], 0.0, 1.0);
+}
diff --git a/crates/throwshade/src/lib.rs b/crates/throwshade/src/lib.rs
new file mode 100644
index 0000000..976f2ae
--- /dev/null
+++ b/crates/throwshade/src/lib.rs
@@ -0,0 +1,57 @@
+use teleia::*;
+
+const VERT: &'static str = include_str!("assets/shaders/throwshade/vert.glsl");
+const FRAG: &'static str = include_str!("assets/shaders/throwshade/frag.glsl");
+
+pub struct ThrowShade {
+    pub tickset: u64,
+    pub timeset: f64,
+    pub shader: Option<shader::Shader>,
+}
+impl ThrowShade {
+    pub fn new() -> Self {
+        Self {
+            tickset: 0,
+            timeset: 0.0,
+            shader: None,
+        }
+    }
+    pub fn set(&mut self, ctx: &context::Context, st: &state::State, src: &str) -> Result<(), String> {
+        let fsrc = format!("{}\n{}\n", FRAG, src);
+        self.tickset = st.tick;
+        if let Ok(dur) = std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH) {
+            self.timeset = dur.as_secs_f64();
+            log::info!("the time: {}", self.timeset);
+        }
+        if let Some(s) = &mut self.shader {
+            s.replace(ctx, VERT, &fsrc)?;
+        } else {
+            self.shader = Some(shader::Shader::new_helper(ctx, VERT, &fsrc)?);
+        }
+        Ok(())
+    }
+}
+
+cfg_if::cfg_if! {
+    if #[cfg(target_arch = "wasm32")] {
+        struct Game {}
+        impl Game {
+            pub async fn new(_ctx: &context::Context) -> Self {
+                Self {}
+            }
+        }
+        impl state::Game for Game {
+            fn render(&mut self, ctx: &context::Context, st: &mut state::State) -> Option<()> {
+                ctx.clear_color(glam::Vec4::new(1.0, 0.0, 0.0, 1.0));
+                ctx.clear();
+                Some(())
+            }
+        }
+
+        use wasm_bindgen::prelude::*;
+        #[wasm_bindgen]
+        pub async fn main_js() {
+            teleia::run(480, 270, Game::new).await;
+        }
+    }
+}