added swipe indicator

TouchyTickets/Content/Content.mgcb

@@ -95,3 +95,6 @@
 #begin Localization/Localization.nl.json
 /copy:Localization/Localization.nl.json
 
+#begin Localization/News.nl.json
+/copy:Localization/News.nl.json
+

TouchyTickets/Ui.cs

@@ -401,6 +401,35 @@ namespace TouchyTickets {
             this.uiSystem.Add("Options", optionsUi);
 
             this.swipeRelations = new Element[] {optionsUi, upgradeUi, main, buyUi, modifierUi};
+
+            var swipeTimer = 0D;
+            var swipeInfo = new Group(Anchor.BottomCenter, Vector2.One) {
+                PositionOffset = new Vector2(0, 10),
+                SetWidthBasedOnChildren = true,
+                CanBeMoused = false,
+                OnUpdated = (e, time) => {
+                    if (this.swipeProgress == 0) {
+                        if (swipeTimer > 0) {
+                            swipeTimer -= 0.04F;
+                        } else if (e.DrawAlpha > 0) {
+                            e.DrawAlpha -= 0.05F;
+                        }
+                    } else {
+                        swipeTimer = 1;
+                        if (e.DrawAlpha < 1)
+                            e.DrawAlpha += 0.05F;
+                    }
+                }
+            };
+            foreach (var ui in this.swipeRelations) {
+                var tex = new TextureRegion(GameImpl.Instance.SpriteBatch.GetBlankTexture());
+                swipeInfo.AddChild(new Image(Anchor.AutoInlineIgnoreOverflow, new Vector2(12, 6), tex) {
+                    MaintainImageAspect = false,
+                    Padding = new Vector2(1),
+                    OnUpdated = (e, time) => ((Image) e).DrawAlpha = this.currentUi == ui ? 1 : 0.35F
+                });
+            }
+            this.uiSystem.Add("SwipeInfo", swipeInfo).Priority = 200;
         }
 
         public void Update(GameTime time) {