1 files changed, 37 insertions, 0 deletions
diff --git a/racer-tracer/src/scene_controller.rs b/racer-tracer/src/scene_controller.rs
new file mode 100644
index 0000000..4a867f5
--- /dev/null
+++ b/racer-tracer/src/scene_controller.rs
@@ -0,0 +1,37 @@
+pub mod interactive;
+
+use slog::Logger;
+
+use crate::{
+    camera::Camera, config::Config, error::TracerError, image::Image, key_inputs::KeyCallback,
+    scene::Scene, terminal::Terminal,
+};
+
+pub fn create_screen_buffer(image: &Image) -> Vec<u32> {
+    vec![0; image.width * image.height]
+}
+
+pub struct SceneData {
+    pub log: Logger,
+    pub term: Terminal,
+    pub config: Config,
+    pub scene: Scene,
+    pub camera: Camera,
+    pub image: Image,
+}
+
+pub trait SceneController: Send + Sync {
+    // Return a vector of key callbacks. The provided closure will be
+    // called when the corresponding key is release/pressed.
+    fn get_inputs(&self) -> Vec<KeyCallback>;
+
+    // Render function
+    fn render(&self) -> Result<(), TracerError>;
+
+    // Returns the screen buffer produced by the scene controller.
+    // Returns None if no new buffer is available
+    fn get_buffer(&self) -> Result<Option<Vec<u32>>, TracerError>;
+
+    // Called when the application wants to exit.
+    fn stop(&self);
+}