Added display callback, restoring full functionality

examples/basics.rs

@@ -1,20 +1,24 @@
-use hypoloop::core::Loop;
+use hypoloop::core::{State, Loop};
 
 // look into using closures for this
 fn main() {
     // create sim and configure it
     let mut sim = Loop::new();
-    //sim.set_realtime(false);
 
     // test variable
     let mut x: f32 = 0.0;
 
-    // run the simulation using custom update logic
-    sim.run(|state| {
-        state.debug_tick();
-        
-        x += 2.0 * state.get_timescale();
+    let update_logic = |state: &mut State| {        
+        x += state.get_timescale();
+        print!("x: {} | ", x);
 
-        //println!("Delta time: {} | Timescale: {} | Sim time: {} | x: {}", state.get_delta_time(), state.get_timescale(), state.get_sim_time().as_millis(), x);
-    });
+        state.debug_tick();
+    };
+
+    let display_logic = |state: &State| {
+        // put all display logic here
+    };
+
+    // run the simulation using custom update and display logic
+    sim.run(update_logic, display_logic);
 }