engine structure

src/lib.rs

@@ -18,6 +18,10 @@ pub struct Engine {
     entities: Vec<entity::Entity>,
 }
 
+pub fn sleep(ms: u64) {
+    std::thread::sleep(std::time::Duration::from_millis(ms));
+}
+
 impl Engine {
     pub fn thread<F: FnMut() + Send + Sync + 'static>(&mut self, label: &str, f: F) {
         self.threads.insert(label.to_string(), Box::new(f));
@@ -30,4 +34,32 @@ impl Engine {
             .last_mut()
             .expect("Unable to obtain entity (unspawned)")
     }
+
+    pub fn render(&mut self) {
+        terminal::clear().unwrap();
+
+        let mut renderer = renderer::Renderer::new();
+        for entity in &mut self.entities {
+            entity.render(&mut renderer);
+        }
+    }
+
+    pub fn tick(&mut self) {
+        terminal::clear().unwrap();
+
+        for entity in &mut self.entities {
+            entity.tick();
+        }
+    }
+
+    pub fn start(&mut self) {
+        for thr in &mut self.threads.values() {
+            //     std::thread::spawn(thr);
+        }
+
+        loop {
+            self.render();
+            sleep(16);
+        }
+    }
 }