Animated unit sliding

src/Blaze-Brigade/Blaze_Brigade/MouseHandler.cs

@@ -131,9 +131,7 @@ namespace Controller
             // updates the unit's position to each node in the path (node by node)
             foreach (Node node in path)
             {
-                unit.setPosition(node.getPositionX(), node.getPositionY());
-                Game.Instance.Tick();
-                Thread.Sleep(200);
+                animateUnitPosition(unit, node);
                 GameState.setMenuOpen(true);
                 
             }
@@ -141,6 +139,46 @@ namespace Controller
             GameState.setBeforeMove(false);
         }
 
+        // TODO: move this function to animation class
+        // animates unit to move to node
+        private static void animateUnitPosition(Unit unit, Node node)
+        {
+            int nodePixelX = node.getPositionX() * 32;
+            int nodePixelY = node.getPositionY() * 32;
+
+            while (unit.getPixelCoordinates().X != nodePixelX)
+            {
+                if (unit.getPixelCoordinates().X < nodePixelX)
+                {
+                    unit.setPixelCoordinates(new Vector2(unit.getPixelCoordinates().X + 4, unit.getPixelCoordinates().Y));
+                    Game.Instance.Tick();
+                    Thread.Sleep(40);
+                }
+                else
+                {
+                    unit.setPixelCoordinates(new Vector2(unit.getPixelCoordinates().X - 4, unit.getPixelCoordinates().Y));
+                    Game.Instance.Tick();
+                    Thread.Sleep(40);
+                }
+            }
+
+            while (unit.getPixelCoordinates().Y != nodePixelY)
+            {
+                if (unit.getPixelCoordinates().Y < nodePixelY)
+                {
+                    unit.setPixelCoordinates(new Vector2(unit.getPixelCoordinates().X, unit.getPixelCoordinates().Y + 4));
+                    Game.Instance.Tick();
+                    Thread.Sleep(40);
+                }
+                else
+                {
+                    unit.setPixelCoordinates(new Vector2(unit.getPixelCoordinates().X, unit.getPixelCoordinates().Y - 4));
+                    Game.Instance.Tick();
+                    Thread.Sleep(40);
+                }
+            }
+        }
+
         // returns a menu button that was clicked; if no menu button was clicked, returns null
         private static MenuButton getMenuButtonClicked(Vector2 mouseCoordinates)
         {