(af16ecdfa) Merge branch 'dev' into human-ai

Barotrauma/BarotraumaClient/Source/Items/Components/Signal/Connection.cs

@@ -18,6 +18,14 @@ namespace Barotrauma.Items.Components
 
         private static Wire draggingConnected;
 
+        private Color flashColor;
+        private float flashDuration = 1.5f;
+        public float FlashTimer
+        {
+            get { return flashTimer; }
+        }
+        private float flashTimer;
+
         public static void DrawConnections(SpriteBatch spriteBatch, ConnectionPanel panel, Character character)
         {
             Rectangle panelRect = panel.GuiFrame.Rect;
@@ -174,14 +182,38 @@ namespace Barotrauma.Items.Components
                     }
                 }
             }
-            
+
+            if (flashTimer > 0.0f)
+            {
+                //the number of flashes depends on the duration, 1 flash per 1 full second
+                int flashCycleCount = (int)Math.Max(flashDuration, 1);
+                float flashCycleDuration = flashDuration / flashCycleCount;
+
+                //MathHelper.Pi * 0.8f -> the curve goes from 144 deg to 0, 
+                //i.e. quickly bumps up from almost full brightness to full and then fades out
+                connectionSpriteHighlight.Draw(spriteBatch, position, flashColor * (float)Math.Sin(flashTimer % flashCycleDuration / flashCycleDuration * MathHelper.Pi * 0.8f));
+            }
+
             if (Wires.Any(w => w != null && w != draggingConnected))
             {
                 int screwIndex = (int)Math.Floor(position.Y / 30.0f) % screwSprites.Count;
                 screwSprites[screwIndex].Draw(spriteBatch, position);
             }
         }
-        
+
+        public void Flash(Color? color = null, float flashDuration = 1.5f)
+        {
+            flashTimer = flashDuration;
+            this.flashDuration = flashDuration;
+            flashColor = (color == null) ? Color.Red : (Color)color;
+        }
+
+        public void UpdateFlashTimer(float deltaTime)
+        {
+            if (flashTimer <= 0) return;
+            flashTimer -= deltaTime;
+        }
+
         private static void DrawWire(SpriteBatch spriteBatch, Wire wire, Item item, Vector2 end, Vector2 start, bool mouseIn, Wire equippedWire, ConnectionPanel panel, string label)
         {
             if (draggingConnected == wire)