little wobble animation for placement!

TouchyTickets/Attractions/Attraction.cs

@@ -25,6 +25,7 @@ namespace TouchyTickets.Attractions {
         public readonly AttractionType Type;
         [DataMember]
         private float ticketPercentage;
+        private float animationSizeModifier;
 
         public Attraction(AttractionType type) {
             this.Type = type;
@@ -39,10 +40,23 @@ namespace TouchyTickets.Attractions {
                 GameImpl.Instance.Tickets += total;
                 this.ticketPercentage -= total;
             }
+
+            // animation stuff
+            if (this.animationSizeModifier > 0)
+                this.animationSizeModifier = Math.Max(this.animationSizeModifier - 0.2F, 0);
+
             // return the generation rate per second
             return genRate;
         }
 
+        public void Draw(SpriteBatch batch, Vector2 position, float alpha, float scale) {
+            var drawScale = scale;
+            if (this.animationSizeModifier > 0)
+                drawScale += (float) Math.Sin(this.animationSizeModifier) * 0.05F;
+            var center = this.Type.TextureRegion.Size.ToVector2() / 2;
+            batch.Draw(this.Type.TextureRegion, position + center * scale, Color.White * alpha, 0, center, drawScale, SpriteEffects.None, 0);
+        }
+
         public float GetGenerationRate(ParkMap map, Point position) {
             var genRate = this.Type.GetGenerationRate();
 
@@ -84,6 +98,10 @@ namespace TouchyTickets.Attractions {
             return (long) Math.Ceiling(modifier.InitialPrice * Math.Pow(1 + 0.4F, amount));
         }
 
+        public void Wobble() {
+            this.animationSizeModifier = MathHelper.Pi;
+        }
+
         private IEnumerable<Attraction> GetSurrounding(ParkMap map, Point position, AttractionType type) {
             foreach (var tile in this.Type.GetCoveredTiles()) {
                 foreach (var dir in Direction2Helper.Adjacent) {

TouchyTickets/ParkMap.cs

@@ -158,7 +158,7 @@ namespace TouchyTickets {
                     foreach (var offset in attraction.Type.GetCoveredTiles())
                         batch.Draw(batch.GetBlankTexture(), new RectangleF(position + (pos + offset).ToVector2() * tileSize, tileSize), color * 0.25F * alpha);
                 }
-                batch.Draw(attraction.Type.TextureRegion, position + pos.ToVector2() * tileSize, Color.White * alpha, 0, Vector2.Zero, scale, SpriteEffects.None, 0);
+                attraction.Draw(batch, position + pos.ToVector2() * tileSize, alpha, scale);
             }
             // placing attraction
             if (this.PlacingAttraction != null) {
@@ -166,7 +166,7 @@ namespace TouchyTickets {
                 var color = this.CanPlace(this.PlacingPosition, this.PlacingAttraction) ? Color.Yellow : Color.Red;
                 foreach (var pos in this.PlacingAttraction.Type.GetCoveredTiles())
                     batch.Draw(batch.GetBlankTexture(), new RectangleF(placingPos + pos.ToVector2() * tileSize, tileSize), color * 0.25F * alpha);
-                batch.Draw(this.PlacingAttraction.Type.TextureRegion, placingPos, Color.White * alpha * 0.5F, 0, Vector2.Zero, scale, SpriteEffects.None, 0);
+                this.PlacingAttraction.Draw(batch, placingPos, alpha * 0.5F, scale);
             }
         }
 

TouchyTickets/Ui.cs

@@ -166,6 +166,7 @@ namespace TouchyTickets {
                                 GameImpl.Instance.Platform.AddResourceEvent(true, "Tickets", price, "Attraction", attraction.Key);
 
                                 map.Place(map.PlacingPosition, map.PlacingAttraction);
+                                map.PlacingAttraction.Wobble();
                                 this.FadeUi(false, () => this.uiSystem.Remove(e2.Root.Name));
                             },
                             OnUpdated = (e2, time) => ((Button) e2).IsDisabled = !map.CanPlace(map.PlacingPosition, map.PlacingAttraction)
@@ -233,6 +234,7 @@ namespace TouchyTickets {
                                 GameImpl.Instance.Platform.AddResourceEvent(true, "Tickets", price, "Modifier", modifier.Name);
 
                                 attraction.ApplyModifier(map.PlacingModifier);
+                                attraction.Wobble();
                             },
                             OnUpdated = (e2, time) => {
                                 var disabled = map.SelectedPosition == null;