Revert to old cooldown and unify with DoAfter (#2469)

Co-authored-by: Tomeno <tomeno@lulzsec.co.uk>

Content.Client/GameObjects/EntitySystems/DoAfter/DoAfterBar.cs

@@ -56,23 +56,20 @@ namespace Content.Client.GameObjects.EntitySystems.DoAfter
         ///     Is the cancellation bar red?
         /// </summary>
         private bool _flash = true;
-        
+
         /// <summary>
         ///     Last time we swapped the flash.
         /// </summary>
         private TimeSpan _lastFlash;
-        
+
         /// <summary>
         ///     How long each cancellation bar flash lasts in seconds.
         /// </summary>
         private const float FlashTime = 0.125f;
-        
+
         private const int XPixelDiff = 20 * DoAfterBarScale;
 
         public const byte DoAfterBarScale = 2;
-        private static readonly Color StartColor = new Color(0.8f, 0.0f, 0.2f); // red
-        private static readonly Color EndColor = new Color(0.92f, 0.77f, 0.34f); // yellow
-        private static readonly Color CompletedColor = new Color(0.0f, 0.8f, 0.27f); // green
 
         public DoAfterBar()
         {
@@ -108,28 +105,25 @@ namespace Content.Client.GameObjects.EntitySystems.DoAfter
                 }
 
                 color = new Color(1.0f, 0.0f, 0.0f, _flash ? 1.0f : 0.0f);
-            } 
+            }
             else if (Ratio >= 1.0f)
             {
-                color = CompletedColor;
+                color = new Color(0f, 1f, 0f);
             }
             else
             {
                 // lerp
-                color = new Color(
-                    StartColor.R + (EndColor.R - StartColor.R) * Ratio,
-                    StartColor.G + (EndColor.G - StartColor.G) * Ratio,
-                    StartColor.B + (EndColor.B - StartColor.B) * Ratio,
-                    StartColor.A);
+                var hue = (5f / 18f) * Ratio;
+                color = Color.FromHsv((hue, 1f, 0.75f, 1f));
             }
-            
+
             handle.UseShader(_shader);
             // If you want to make this less hard-coded be my guest
             var leftOffset = 2 * DoAfterBarScale;
             var box = new UIBox2i(
-                leftOffset, 
+                leftOffset,
                 -2 + 2 * DoAfterBarScale,
-            leftOffset + (int) (XPixelDiff * Ratio), 
+            leftOffset + (int) (XPixelDiff * Ratio),
             -2);
             handle.DrawRect(box, color);
         }