renderbug: first implementation of virtual coordinate based rendering

src/task.rs

@@ -1,4 +1,5 @@
 use std::fmt;
+use std::time::{Duration, Instant};
 
 pub trait Task {
     fn tick(&mut self) {}
@@ -82,7 +83,7 @@ impl ScheduledState for Stopped  {
 
 struct ScheduledTask {
     state: Option<Box<dyn ScheduledState>>,
-    task: Box<dyn Task>
+    task: Box<dyn Task>,
 }
 
 impl std::fmt::Debug for ScheduledTask {
@@ -98,7 +99,7 @@ impl ScheduledTask {
     fn new(task: Box<dyn Task>) -> Self {
         ScheduledTask {
             state: Some(Box::new(Starting{})),
-            task: task
+            task: task,
         }
     }
 
@@ -122,7 +123,7 @@ impl ScheduledTask {
 }
 
 pub struct Scheduler {
-    tasks: Vec<ScheduledTask>
+    tasks: Vec<ScheduledTask>,
 }
 
 impl Scheduler {