finalized dirt

added base for liquids

Scripts/Elements/Element.cs

@@ -5,16 +5,15 @@ namespace FOU.Scripts.Elements;
 public class Element {
     public Color Color = Colors.Black;
 
-    public int X;
-    public int Y;
+    public Vector2I Position;
 
     protected Level _level;
 
     private int _lastUpdate = -1;
 
     public Element(int x, int y, ref Level level) {
-        X = x;
-        Y = y;
+        Position.X = x;
+        Position.Y = y;
         _level = level;
     }
 
@@ -31,15 +30,25 @@ public class Element {
     }
 
     public override string ToString() {
-        return $"{GetType()} {X}:{Y}";
+        return $"{GetType()} {Position}";
     }
 
-    protected bool CheckBelow(int x, int y) {
-        if (y+1 >= _level.SizeY) return false;
+    // OBSOLETE:
+    // protected bool CheckBelow(int sourceX, int sourceY) {
+    //     if (sourceY+1 >= _level.SizeY) return false;
+    //
+    //     if (_level.Get(sourceX, sourceY+1).GetType() == GetType())
+    //         return false;
+    //
+    //     return true;
+    // }
 
-        if (_level.Get(x, y+1).GetType() == GetType())
-            return false;
-
-        return true;
-    }
-}
+    /// <summary>
+    /// Checks from source to maxDirection (also X-mirrored) and returns a free position
+    /// </summary>
+    /// <param name="source">from where to check</param>
+    /// <param name="maxDirection">where to go to (max). X is treated as [-X..X]</param>
+    /// <returns>free position or V2.zero if nothing was found</returns>
+    protected virtual Vector2I Check(Element source, Vector2I maxDirection) {
+        return Vector2I.Zero;
+    }}