Merge branch 'step-4' into step-3

src/ch/epfl/chacun/ZonePartitions.java

@@ -0,0 +1,37 @@
+package ch.epfl.chacun;
+
+public record ZonePartitions(ZonePartition<Zone.Forest> forests, ZonePartition<Zone.Meadow> meadows,
+                             ZonePartition<Zone.River> rivers, ZonePartition<Zone.Lake> lakes,
+                             ZonePartition<Zone.Water> riverSystems) {
+    public final static ZonePartitions EMPTY = new ZonePartitions(new ZonePartition<>(), new ZonePartition<>(), new ZonePartition<>(), new ZonePartition<>(), new ZonePartition<>());
+
+
+    public static final class Builder {
+
+        private ZonePartition.Builder<Zone.Forest> forests;
+        private ZonePartition.Builder<Zone.Meadow> meadows;
+        private ZonePartition.Builder<Zone.River> rivers;
+        private ZonePartition.Builder<Zone.Lake> lakes;
+
+        public Builder(ZonePartitions initial) {
+            this.forests = new ZonePartition.Builder<>(initial.forests);
+            this.meadows = new ZonePartition.Builder<>(initial.meadows);
+            this.rivers = new ZonePartition.Builder<>(initial.rivers);
+            this.lakes = new ZonePartition.Builder<>(initial.lakes);
+        }
+
+        public void addTile(Tile tile) {
+            int[] openConnections = new int[10];
+            for (TileSide side : tile.sides()) {
+                for (Zone zone : side.zones()) {
+                    ++openConnections[zone.id()];
+                }
+            }
+
+            // if (tile.zones().stream().some)
+
+        }
+
+    }
+
+}