       health: 50
     
     # health will approach 
-    # 100 by 1 each update
+    # 100 by 1 every second
     player.cooldown "health",
       target: 100
     
-    player.update(1)
+    elapsedTime = 1
+    player.update(elapsedTime)
     
     player.I.health
     # => 51

    
    player.I.turboTimer = 1000
    
    player.update(1)
    
    player.I.turboTimer # => 995


    player = GameObject()
    
    # turboTimer starts at 1000 
    # and approaches 12 by 5 each second
    player.cooldown "turboTimer",
      approachBy: 5
      value: 1000
