Karte: Zoom-Fix, Layout-Sync, Sandwich-basierter Pfad-Split

- Zoom-Bug behoben: CaveMapView auto-lud mit Canvas 0×0 (scale=1.0 ungültig)
  → Tab-Sync jetzt nur wenn isViewInitialized() (zoomLevels != null)
- Layout-Fix: CaveMapView-Statusleiste unter dem Canvas (wie WorldMapView),
  nicht mehr darüber → Canvas-Höhe jetzt identisch → Position-Sync 1:1 korrekt
- Auto-Load aus CaveMapView.redraw() entfernt; deferred fitToView() stattdessen
- Pfad-Split: Sandwich-Maske (solid→void≥3→solid per Spalte) verhindert
  False-Positives an Klippen-Füßen; Wege werden nur als unterirdisch erkannt
  wenn in ihrer X,Z-Spalte ein echter Hohlraum (Tunnel) vorliegt

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

blight-editor/src/main/java/de/blight/editor/EditorApp.java

@@ -5705,8 +5705,8 @@ public class EditorApp extends Application {
             if (!isSelected) return;
             if (!worldMapView.isLoaded()) {
                 worldMapView.loadAndRender();
-            } else if (caveMapView != null && caveMapView.isLoaded()) {
+            } else if (caveMapView != null && caveMapView.isLoaded() && caveMapView.isViewInitialized()) {
-                // Sync nach Layout-Pass damit Canvas-Größe korrekt ist
+                // Sync nur wenn CaveMap korrekt initialisiert (canvas > 0, zoomLevels gesetzt)
                 final double s = caveMapView.getScale(), px = caveMapView.getPanX(), py = caveMapView.getPanY();
                 javafx.application.Platform.runLater(() -> worldMapView.setView(s, px, py));
             } else {
@@ -5721,8 +5721,8 @@ public class EditorApp extends Application {
             if (!isSelected) return;
             if (!caveMapView.isLoaded()) {
                 caveMapView.loadAndRender();
-            } else if (worldMapView.isMapReady()) {
+            } else if (worldMapView.isMapReady() && worldMapView.isViewInitialized()) {
-                // Sync nach Layout-Pass damit Canvas-Größe korrekt ist
+                // Sync nur wenn WorldMap korrekt initialisiert
                 final double s = worldMapView.getScale(), px = worldMapView.getPanX(), py = worldMapView.getPanY();
                 javafx.application.Platform.runLater(() -> caveMapView.setView(s, px, py));
             } else {

blight-editor/src/main/java/de/blight/editor/ui/CaveMapView.java

@@ -73,7 +73,6 @@ public class CaveMapView extends VBox {
     private double panX = 0, panY = 0, scale = 1.0;
     private double[] zoomLevels = null;
     private int zoomLevelIdx = 0;
-    private boolean autoLoaded = false;
 
     public CaveMapView(Supplier<Stage> stageSupplier) {
         this.stageSupplier = stageSupplier;
@@ -121,7 +120,7 @@ public class CaveMapView extends VBox {
                 backBtn
         );
 
-        progress.setMaxWidth(Double.MAX_VALUE);
+        progress.setPrefWidth(160);
         progress.setVisible(false);
 
         canvasPane.getChildren().add(canvas);
@@ -132,11 +131,15 @@ public class CaveMapView extends VBox {
         canvas.widthProperty().addListener(obs -> redraw());
         canvas.heightProperty().addListener(obs -> redraw());
 
-        statusLbl.setPadding(new Insets(4, 8, 4, 8));
+        // Status-Leiste identisch wie WorldMapView: unter dem Canvas
+        HBox statusBar = new HBox(8, statusLbl, progress);
+        statusBar.setAlignment(javafx.geometry.Pos.CENTER_LEFT);
+        statusBar.setPadding(new Insets(4, 8, 4, 8));
+        statusBar.setStyle("-fx-background-color: #2a2a3a;");
 
         setupMouse();
 
-        getChildren().addAll(bar, progress, statusLbl, canvasPane);
+        getChildren().addAll(bar, canvasPane, statusBar);
         setStyle("-fx-background-color: #1a1a1a;");
     }
 
@@ -262,6 +265,8 @@ public class CaveMapView extends VBox {
     }
 
     public boolean isLoaded() { return mapFxImage != null; }
+    /** True wenn Zoom-Levels korrekt initialisiert (Canvas hatte Größe > 0 beim Laden). */
+    public boolean isViewInitialized() { return zoomLevels != null; }
 
     public void ensureFitToView() { if (mapFxImage != null) fitToView(); }
 
@@ -292,10 +297,11 @@ public class CaveMapView extends VBox {
                 Platform.runLater(() -> statusLbl.setText("Berechne Cave-Maske…"));
                 boolean[] caveMask = WorldMapView.loadCaveMask(mapData);
 
-                // Pfade: Y-basierte Trennung (voxelSurface > path_y + clearance)
+                // Pfade: Sandwich+Y-basierte Trennung (echter Tunnel: solid→void≥3→solid)
                 Platform.runLater(() -> statusLbl.setText("Berechne VoxelSurface…"));
                 float[] voxelSurface            = WorldMapRenderer.bakeVoxelSurface(mapData);
-                List<float[][]>[] splitChains   = WorldMapView.splitPathChains(allPaths, voxelSurface);
+                boolean[] sandwichMask          = WorldMapView.bakeSandwichMask();
+                List<float[][]>[] splitChains   = WorldMapView.splitPathChains(allPaths, voxelSurface, sandwichMask);
                 List<float[][]> cavePaths        = splitChains[1];
 
                 // Gebäude + Areas: Cave-Maske (keine Y-Info)
@@ -367,9 +373,9 @@ public class CaveMapView extends VBox {
     }
 
     private void redraw() {
-        if (!autoLoaded && mapFxImage == null && !loading.get()) {
+        // Nachgelagerte Initialisierung: Canvas hatte beim Laden evtl. Größe 0
-            autoLoaded = true;
+        if (mapFxImage != null && zoomLevels == null) {
-            loadAndRender();
+            fitToView();
         }
         GraphicsContext gc = canvas.getGraphicsContext2D();
         double w = canvas.getWidth(), h = canvas.getHeight();

blight-editor/src/main/java/de/blight/editor/ui/WorldMapView.java

@@ -359,6 +359,9 @@ public class WorldMapView extends VBox {
         }
     }
 
+    /** True wenn Zoom-Levels korrekt initialisiert (Canvas hatte Größe > 0 beim Laden). */
+    public boolean isViewInitialized() { return zoomLevels != null; }
+
     /** Lädt alle Weltdaten neu und baut das Render-Modell (teuer: I/O + Berechnungen). */
     public void loadAndRender() {
         if (loading.getAndSet(true)) return;
@@ -377,7 +380,9 @@ public class WorldMapView extends VBox {
                 List<PlacedWater>        waters     = WaterBodyIO.load();
                 List<PlacedModel>        models     = PlacedModelIO.load();
                 List<PlacedWaterfall>    waterfalls = WaterfallIO.load();
-                float[] voxelSurf = bakeVoxelHeights(mapData);
+                VoxelData vd = bakeVoxelData(mapData);
+                float[] voxelSurf = vd.voxelSurface();
+                boolean[] sandwichMask = vd.sandwichMask();
 
                 Platform.runLater(() -> statusLbl.setText("Berechne Modell…"));
                 WorldMapRenderModel model = buildRenderModel(
@@ -405,7 +410,7 @@ public class WorldMapView extends VBox {
 
                 Platform.runLater(() -> statusLbl.setText("Berechne Cave-Maske…"));
                 boolean[] caveMask               = loadCaveMask(model.mapData());
-                List<float[][]>[] splitChains    = splitPathChains(allPathChains, model.voxelSurface());
+                List<float[][]>[] splitChains    = splitPathChains(allPathChains, model.voxelSurface(), sandwichMask);
                 List<float[][]> newPathChains    = splitChains[0];  // nur Oberfläche
                 List<float[]>   newBuildingFootprints = filterBuildingsByCave(allBuildingFootprints, caveMask, false);
                 List<PlacedArea> surfaceAreas    = filterAreasByCave(new ArrayList<>(model.areas()), caveMask, false);
@@ -1109,24 +1114,31 @@ public class WorldMapView extends VBox {
     }
 
     /**
-     * Teilt Pfad-Ketten an Tunnel-Grenzen auf (Y-basiert, präzise).
+     * Teilt Pfad-Ketten an Tunnel-Grenzen auf.
-     * Nutzt die Y-Koordinate der Pfad-Knoten (Index 2) und prüft ob sie unterhalb
+     * Kombiniert Sandwich-Prüfung (solid→void≥3→solid = echter Tunnel) mit Y-Koordinate,
-     * von solidem Voxel-Material liegen (voxelSurface > node_y + MIN_CEILING).
+     * um False-Positives an Klippen-Füßen zu vermeiden.
      * Rückgabe: Index 0 = Oberflächensegmente, Index 1 = Tunnel-Segmente.
      */
     @SuppressWarnings("unchecked")
-    static List<float[][]>[] splitPathChains(List<float[][]> chains, float[] voxelSurface) {
+    static List<float[][]>[] splitPathChains(List<float[][]> chains, float[] voxelSurface,
+                                             boolean[] sandwichMask) {
         List<float[][]> surface = new ArrayList<>();
         List<float[][]> cave    = new ArrayList<>();
         for (float[][] chain : chains) {
-            splitChainByVoxelSurface(chain, voxelSurface, surface, cave);
+            splitChainByVoxelSurface(chain, voxelSurface, sandwichMask, surface, cave);
         }
         return new List[]{surface, cave};
     }
 
     private static final float PATH_UNDERGROUND_CLEARANCE = 3.0f;
 
-    private static boolean isNodeUnderground(float[] node, float[] voxelSurface) {
+    /**
+     * Prüft ob ein Knoten unter der Erde liegt.
+     * Bedingung: In dieser X,Z-Spalte liegt ein Sandwich (solid→void≥3→solid)
+     * UND das höchste Solid ist ≥ PATH_UNDERGROUND_CLEARANCE über der Knoten-Y.
+     * Das Sandwich-Kriterium verhindert False-Positives bei Wegen am Klippenfuß.
+     */
+    private static boolean isNodeUnderground(float[] node, float[] voxelSurface, boolean[] sandwichMask) {
         if (node.length < 3) return false;
         float wy = node[2];
         if (Float.isNaN(wy)) return false;
@@ -1136,26 +1148,29 @@ public class WorldMapView extends VBox {
         int pz = Math.round((node[1] + WH) / WS * (VS - 1));
         px = Math.max(0, Math.min(VS - 1, px));
         pz = Math.max(0, Math.min(VS - 1, pz));
+        // Sandwich-Prüfung: nur dort wo echter Hohlraum vorliegt (nicht bloß Klippe)
+        if (sandwichMask != null && !sandwichMask[pz * VS + px]) return false;
         float vs = voxelSurface[pz * VS + px];
         return !Float.isNaN(vs) && vs > wy + PATH_UNDERGROUND_CLEARANCE;
     }
 
     private static void splitChainByVoxelSurface(float[][] chain, float[] voxelSurface,
+                                                  boolean[] sandwichMask,
                                                   List<float[][]> surface, List<float[][]> cave) {
         if (chain.length < 2) return;
         List<float[]> current     = new ArrayList<>();
-        boolean       currentCave = isNodeUnderground(chain[0], voxelSurface);
+        boolean       currentCave = isNodeUnderground(chain[0], voxelSurface, sandwichMask);
         current.add(chain[0]);
 
         for (int i = 0; i < chain.length - 1; i++) {
             float[] a = chain[i];
             float[] b = chain[i + 1];
-            boolean bCave = isNodeUnderground(b, voxelSurface);
+            boolean bCave = isNodeUnderground(b, voxelSurface, sandwichMask);
 
             if (currentCave == bCave) {
                 current.add(b);
             } else {
-                float[] crossing = findPathCrossing(a, b, voxelSurface, currentCave);
+                float[] crossing = findPathCrossing(a, b, voxelSurface, sandwichMask, currentCave);
                 current.add(crossing);
                 if (current.size() >= 2) {
                     (currentCave ? cave : surface).add(current.toArray(new float[0][]));
@@ -1172,13 +1187,14 @@ public class WorldMapView extends VBox {
     }
 
     /** Bisektion mit Y-Interpolation: 12 Iterationen ≈ 0.05m Genauigkeit. */
-    private static float[] findPathCrossing(float[] a, float[] b, float[] vs, boolean aIsUnderground) {
+    private static float[] findPathCrossing(float[] a, float[] b, float[] vs, boolean[] sm,
+                                            boolean aIsUnderground) {
         float ax = a[0], az = a[1], ay = a.length > 2 ? a[2] : 0f;
         float bx = b[0], bz = b[1], by = b.length > 2 ? b[2] : 0f;
         for (int i = 0; i < 12; i++) {
             float mx = (ax + bx) * 0.5f, mz = (az + bz) * 0.5f, my = (ay + by) * 0.5f;
             float[] mid = {mx, mz, my};
-            if (isNodeUnderground(mid, vs) == aIsUnderground) { ax = mx; az = mz; ay = my; }
+            if (isNodeUnderground(mid, vs, sm) == aIsUnderground) { ax = mx; az = mz; ay = my; }
             else                                                   { bx = mx; bz = mz; by = my; }
         }
         return new float[]{(ax + bx) * 0.5f, (az + bz) * 0.5f, (ay + by) * 0.5f};
@@ -1373,7 +1389,9 @@ public class WorldMapView extends VBox {
         return i;
     }
 
-    private float[] bakeVoxelHeights(MapData mapData) {
+    private record VoxelData(float[] voxelSurface, boolean[] sandwichMask) {}
+
+    private VoxelData bakeVoxelData(MapData mapData) {
         int VS = WorldMapRenderer.VOXEL_SURFACE_RES;
         // Bevorzuge Live-Chunks aus dem Editor-Speicher, falle auf Disk zurück
         List<VoxelChunk> chunks = voxelChunkSupplier != null
@@ -1381,10 +1399,11 @@ public class WorldMapView extends VBox {
                 : VoxelChunkIO.loadAll();
         boolean allEmpty = chunks.stream().allMatch(VoxelChunk::isEmpty);
         if (allEmpty) { chunks = VoxelChunkIO.loadAll(); }
+        boolean[] sandwichMask = new boolean[VS * VS];
         if (chunks.isEmpty()) {
             float[] empty = new float[VS * VS];
             java.util.Arrays.fill(empty, Float.NaN);
-            return empty;
+            return new VoxelData(empty, sandwichMask);
         }
         // Kern-Logik ist dieselbe wie WorldMapRenderer.bakeVoxelSurface, aber mit
         // Live-Chunks statt VoxelChunkIO.loadAll().
@@ -1422,7 +1441,57 @@ public class WorldMapView extends VBox {
                 }
             }
         }
-        return voxelSurface;
+        // Sandwich-Maske: pro Spalte prüfen ob solid→void(≥3)→solid vorliegt (echter Tunnel)
+        buildSandwichMaskInto(chunks, sandwichMask, VS, WH, WS);
+        return new VoxelData(voxelSurface, sandwichMask);
+    }
+
+    /**
+     * Berechnet pro Voxel-Spalte, ob eine Tunnel-Struktur (solid→void≥3→solid) vorliegt.
+     * Nur cy=0-Chunks werden berücksichtigt; Klippen ohne Hohlraum werden NICHT markiert.
+     */
+    private static void buildSandwichMaskInto(List<VoxelChunk> chunks, boolean[] out, int VS,
+                                               float WH, float WS) {
+        for (VoxelChunk chunk : chunks) {
+            if (chunk.isEmpty() || chunk.cy != 0) continue;
+            for (int lz = 0; lz < VoxelChunk.SIZE; lz++) {
+                float worldZ = VoxelChunk.toWorldZ(chunk.cz, lz);
+                int vsPz = Math.round((worldZ + WH) / WS * (VS - 1));
+                if (vsPz < 0 || vsPz >= VS) continue;
+                for (int lx = 0; lx < VoxelChunk.SIZE; lx++) {
+                    float worldX = VoxelChunk.toWorldX(chunk.cx, lx);
+                    int vsPx = Math.round((worldX + WH) / WS * (VS - 1));
+                    if (vsPx < 0 || vsPx >= VS) continue;
+                    int idx = vsPz * VS + vsPx;
+                    if (out[idx]) continue;
+                    int phase = 0, voidCnt = 0;
+                    for (int ly = 0; ly < VoxelChunk.SIZE; ly++) {
+                        byte d = chunk.getDensity(lx, ly, lz);
+                        if (phase == 0) {
+                            if (d > 0) phase = 1;
+                        } else if (phase == 1) {
+                            if (d <= 0) { phase = 2; voidCnt = 1; }
+                        } else {
+                            if (d <= 0) { voidCnt++; }
+                            else {
+                                if (voidCnt >= 3) { out[idx] = true; break; }
+                                phase = 1; voidCnt = 0;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /** Wie buildSandwichMaskInto, aber lädt Chunks von Disk (für CaveMapView). */
+    static boolean[] bakeSandwichMask() {
+        int VS = WorldMapRenderer.VOXEL_SURFACE_RES;
+        boolean[] sm = new boolean[VS * VS];
+        List<VoxelChunk> chunks;
+        try { chunks = VoxelChunkIO.loadAll(); } catch (Exception e) { return sm; }
+        buildSandwichMaskInto(chunks, sm, VS, WorldMapRenderer.WORLD_HALF, WorldMapRenderer.WORLD_SIZE);
+        return sm;
     }
 
     private WorldMapRenderModel buildRenderModel(