fixed window

Snake/Game.cs

@@ -15,6 +15,7 @@ namespace Snake
         Form1 form;
 
         int mapSize = 20;
+        float colorMultiplier = 8f;
 
         public Game(Form1 form)
         {
@@ -27,6 +28,7 @@ namespace Snake
             map = new Map(mapSize, mapSize);
             map.SetCell(startCell);
             worm = new Worm(startCell);
+            startCell.Color = ColorFromHue(0f);
             SpawnApple();
         }
 
@@ -94,6 +96,7 @@ namespace Snake
             if (cell.Type == CellTypes.None)
             {
                 cell.Type = CellTypes.Food;
+                cell.Color = ColorFromHue(worm.Body.Count*colorMultiplier);
                 return;
             }
 
@@ -137,5 +140,28 @@ namespace Snake
         {
             form.timer.Enabled = false;
         }
+
+        public Color ColorFromHue(float hue)
+        {
+            hue = hue % 360f;
+            float c = 1f;
+            float x = c * (1 - Math.Abs((hue / 60f) % 2 - 1));
+            float m = 0f;
+
+            float r = 0, g = 0, b = 0;
+
+            if (hue < 60) { r = c; g = x; }
+            else if (hue < 120) { r = x; g = c; }
+            else if (hue < 180) { g = c; b = x; }
+            else if (hue < 240) { g = x; b = c; }
+            else if (hue < 300) { r = x; b = c; }
+            else { r = c; b = x; }
+
+            return Color.FromArgb(
+                (int)((r + m) * 255),
+                (int)((g + m) * 255),
+                (int)((b + m) * 255)
+            );
+        }
     }
 }