Fix falsely considering regions outside of the defined render-boundaries

BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/config/MapConfig.java

@@ -39,6 +39,9 @@ public class MapConfig implements MapSettings {
     private int minY = Integer.MIN_VALUE;
     private int maxY = Integer.MAX_VALUE;
 
+    private transient Vector3i min = null;
+    private transient Vector3i max = null;
+
     private boolean renderEdges = true;
 
     private String storage = "file";
@@ -83,11 +86,13 @@ public boolean isCaveDetectionUsesBlockLight() {
     }
 
     public Vector3i getMinPos() {
-        return new Vector3i(minX, minY, minZ);
+        if (min == null) min = new Vector3i(minX, minY, minZ);
+        return min;
     }
 
     public Vector3i getMaxPos() {
-        return new Vector3i(maxX, maxY, maxZ);
+        if (max == null) max = new Vector3i(maxX, maxY, maxZ);
+        return max;
     }
 
     public boolean isRenderEdges() {

BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/rendermanager/MapUpdateTask.java

@@ -34,6 +34,8 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
 
 @DebugDump
 public class MapUpdateTask extends CombinedRenderTask<WorldRegionRenderTask> {
@@ -42,19 +44,19 @@ public class MapUpdateTask extends CombinedRenderTask<WorldRegionRenderTask> {
     private final Collection<Vector2i> regions;
 
     public MapUpdateTask(BmMap map) {
-        this(map, getRegions(map.getWorld()));
+        this(map, getRegions(map));
     }
 
     public MapUpdateTask(BmMap map, boolean force) {
-        this(map, getRegions(map.getWorld()), force);
+        this(map, getRegions(map), force);
     }
 
     public MapUpdateTask(BmMap map, Vector2i center, int radius) {
-        this(map, getRegions(map.getWorld(), center, radius));
+        this(map, getRegions(map, center, radius));
     }
 
     public MapUpdateTask(BmMap map, Vector2i center, int radius, boolean force) {
-        this(map, getRegions(map.getWorld(), center, radius), force);
+        this(map, getRegions(map, center, radius), force);
     }
 
     public MapUpdateTask(BmMap map, Collection<Vector2i> regions) {
@@ -89,20 +91,37 @@ private static Collection<WorldRegionRenderTask> createTasks(BmMap map, Collecti
         return tasks;
     }
 
-    private static List<Vector2i> getRegions(World world) {
+    private static List<Vector2i> getRegions(BmMap map) {
-        return getRegions(world, null, -1);
+        return getRegions(map, null, -1);
     }
 
-    private static List<Vector2i> getRegions(World world, Vector2i center, int radius) {
+    private static List<Vector2i> getRegions(BmMap map, Vector2i center, int radius) {
-        if (center == null || radius < 0) return new ArrayList<>(world.listRegions()); //TODO: remove regions outside render-boundaries
+        World world = map.getWorld();
+        Grid regionGrid = world.getRegionGrid();
+
+        Predicate<Vector2i> regionFilter = r -> {
+            Vector2i cellMin = regionGrid.getCellMin(r);
+            if (cellMin.getX() > map.getMapSettings().getMaxPos().getX()) return false;
+            if (cellMin.getY() > map.getMapSettings().getMaxPos().getY()) return false;
+
+            Vector2i cellMax = regionGrid.getCellMax(r);
+            if (cellMax.getX() < map.getMapSettings().getMinPos().getX()) return false;
+            return cellMax.getY() >= map.getMapSettings().getMinPos().getY();
+        };
+
+        if (center == null || radius < 0) {
+            return world.listRegions().stream()
+                    .filter(regionFilter)
+                    .collect(Collectors.toList());
+        }
 
         List<Vector2i> regions = new ArrayList<>();
-
-        Grid regionGrid = world.getRegionGrid();
         Vector2i halfCell = regionGrid.getGridSize().div(2);
         int increasedRadiusSquared = (int) Math.pow(radius + Math.ceil(halfCell.length()), 2);
 
         for (Vector2i region : world.listRegions()) {
+            if (!regionFilter.test(region)) continue;
+
             Vector2i min = regionGrid.getCellMin(region);
             Vector2i regionCenter = min.add(halfCell);
 

BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/rendermanager/WorldRegionRenderTask.java

@@ -32,6 +32,7 @@
 import de.bluecolored.bluemap.core.world.Region;
 
 import java.util.*;
+import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
 @DebugDump
@@ -91,10 +92,22 @@ private synchronized void init() {
             }
         }
 
+        Predicate<Vector2i> boundsTileFilter = t -> {
+            Vector2i cellMin = tileGrid.getCellMin(t);
+            if (cellMin.getX() > map.getMapSettings().getMaxPos().getX()) return false;
+            if (cellMin.getY() > map.getMapSettings().getMaxPos().getY()) return false;
+
+            Vector2i cellMax = tileGrid.getCellMax(t);
+            if (cellMax.getX() < map.getMapSettings().getMinPos().getX()) return false;
+            return cellMax.getY() >= map.getMapSettings().getMinPos().getY();
+        };
+
         this.tileCount = tileSet.size();
         this.tiles = tileSet.stream()
                 .sorted(WorldRegionRenderTask::compareVec2L) //sort with longs to avoid overflow (comparison uses distanceSquared)
                 .map(Vector2l::toInt) // back to ints
+                .filter(boundsTileFilter)
+                .filter(map.getTileFilter())
                 .collect(Collectors.toCollection(ArrayDeque::new));
 
         if (tiles.isEmpty()) complete();

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/map/BmMap.java

@@ -53,6 +53,7 @@ public class BmMap {
     private final String worldId;
     private final World world;
     private final Storage storage;
+    private final MapSettings mapSettings;
 
     private final MapRenderState renderState;
 
@@ -70,9 +71,9 @@ public BmMap(String id, String name, String worldId, World world, Storage storag
         this.worldId = Objects.requireNonNull(worldId);
         this.world = Objects.requireNonNull(world);
         this.storage = Objects.requireNonNull(storage);
+        this.mapSettings = Objects.requireNonNull(settings);
 
         Objects.requireNonNull(resourcePack);
-        Objects.requireNonNull(settings);
 
         this.renderState = new MapRenderState();
 
@@ -149,6 +150,10 @@ public Storage getStorage() {
         return storage;
     }
 
+    public MapSettings getMapSettings() {
+        return mapSettings;
+    }
+
     public MapRenderState getRenderState() {
         return renderState;
     }