modif appbuilder

lib/examples/simple.rs

@@ -0,0 +1,70 @@
+use wsg_lib::app::{App, AppHandler};
+use wsg_lib::resources::{Material, Mesh, Vertex};
+use wsg_lib::utils;
+
+// 1. On définit notre "Jeu" qui implémente le comportement
+struct MonQuad {
+    mesh: Mesh,
+    material: Material,
+}
+
+impl AppHandler for MonQuad {
+    fn render(&mut self, app: &mut App) {
+        // Le rendu devient simple : on accède aux outils via &mut app
+        if let Some(frame) = app.context.get_next_frame() {
+            app.renderer
+                .render(frame.view(), &self.mesh, &self.material);
+            app.renderer.present(frame);
+        }
+    }
+}
+
+#[pollster::main]
+async fn main() -> Result<(), wsg_lib::utils::WsgError> {
+    // 2. Initialisation via le Builder
+    let mut app = App::builder()
+        .title("Exemple Simple")
+        .size(800, 600)
+        .build()
+        .await?;
+
+    // 3. Setup des ressources (déclaration)
+    app.cache
+        .register_shader("basic", utils::BASIC_SHADER_PATH)
+        .unwrap();
+
+    let vertices: [Vertex; 4] = [
+        Vertex {
+            position: [-0.5, 0.5, 0.0],
+            normal: [0.0, 0.0, 1.0],
+            uv: [0.0, 0.0],
+            color: [1.0, 0.0, 0.0, 1.0],
+        },
+        Vertex {
+            position: [0.5, 0.5, 0.0],
+            normal: [0.0, 0.0, 1.0],
+            uv: [1.0, 0.0],
+            color: [0.0, 1.0, 0.0, 1.0],
+        },
+        Vertex {
+            position: [0.5, -0.5, 0.0],
+            normal: [0.0, 0.0, 1.0],
+            uv: [1.0, 1.0],
+            color: [0.0, 0.0, 1.0, 1.0],
+        },
+        Vertex {
+            position: [-0.5, -0.5, 0.0],
+            normal: [0.0, 0.0, 1.0],
+            uv: [0.0, 1.0],
+            color: [1.0, 1.0, 0.0, 1.0],
+        },
+    ];
+    let indices: [u16; 6] = [0, 1, 2, 0, 2, 3];
+
+    let mesh = Mesh::new(app.context.device(), &vertices, Some(&indices));
+    let material = Material::new(app.renderer.format(), "basic", &mut app.cache);
+
+    // 4. Lancement de la boucle (la magie opère ici)
+    let handler = MonQuad { mesh, material };
+    app.run(handler)
+}