Avoid loading islands unless necessary

Author: tastybento

pom.xml

@@ -88,7 +88,7 @@
         <!-- Do not change unless you want different name for local builds. -->
         <build.number>-LOCAL</build.number>
         <!-- This allows to change between versions. -->
-        <build.version>2.6.0</build.version>
+        <build.version>2.7.0</build.version>
         <sonar.organization>bentobox-world</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
         <server.jars>${project.basedir}/lib</server.jars>

src/main/java/world/bentobox/bentobox/managers/IslandsManager.java

@@ -442,7 +442,7 @@ public Optional<Island> getIslandAt(@NonNull Location location) {
                 : Optional.empty();
     }
 
-    public boolean isIslandAd(@NonNull Location location) {
+    public boolean isIslandAt(@NonNull Location location) {
         return plugin.getIWM().inWorld(location) ? islandCache.isIslandAt(location) : false;
     }
 

src/main/java/world/bentobox/bentobox/managers/island/DefaultNewIslandLocationStrategy.java

@@ -74,7 +74,9 @@ public Location getNextLocation(World world) {
      */
     protected Result isIsland(Location location) {
         // Quick check
-        if (plugin.getIslands().getIslandAt(location).isPresent()) return Result.ISLAND_FOUND;
+        if (plugin.getIslands().isIslandAt(location)) {
+            return Result.ISLAND_FOUND;
+        }
 
         World world = location.getWorld();
 

src/main/java/world/bentobox/bentobox/managers/island/IslandGrid.java

@@ -37,7 +37,7 @@ public boolean addToGrid(Island island) {
         // Check if we know about this island already
         int minX = island.getMinX();
         int minZ = island.getMinZ();
-        IslandData islandData = new IslandData(island.getUniqueId(), minZ, minZ, island.getRange());
+        IslandData islandData = new IslandData(island.getUniqueId(), minX, minZ, island.getRange());
         if (grid.containsKey(minX)) {
             TreeMap<Integer, IslandData> zEntry = grid.get(minX);
             if (zEntry.containsKey(minZ)) {
@@ -99,7 +99,7 @@ public Island getIslandAt(int x, int z) {
      * Checks if an island is at this coordinate or not
      * @param x coord
      * @param z coord
-     * @return true if there is an island registered in the grid
+     * @return true if there is an island registered here in the grid
      */
     public boolean isIslandAt(int x, int z) {
         return getIslandStringAt(x, z) != null;
@@ -124,8 +124,8 @@ public boolean isIslandAt(int x, int z) {
             return null; // No z-coordinate entry found, return null
         }
         // Check if the specified coordinates are within the island space
-        if (x >= zEntry.getValue().minX() && x < zEntry.getValue().minX() + zEntry.getValue().range() * 2
-                && z >= zEntry.getValue().minZ() && z < zEntry.getValue().minZ() + zEntry.getValue().range() * 2) {
+        if (x >= zEntry.getValue().minX() && x < (zEntry.getValue().minX() + zEntry.getValue().range() * 2)
+                && z >= zEntry.getValue().minZ() && z < (zEntry.getValue().minZ() + zEntry.getValue().range() * 2)) {
             return zEntry.getValue().id();
         }
         return null;

src/test/java/world/bentobox/bentobox/managers/island/IslandCacheTest.java

@@ -137,6 +137,7 @@ public void setUp() throws Exception {
         when(island.getMemberSet()).thenReturn(members.build());
         when(island.getMinX()).thenReturn(-200);
         when(island.getMinZ()).thenReturn(-200);
+        when(island.getRange()).thenReturn(400);
 
         // database must be mocked here
         db = mock(Database.class);
@@ -234,12 +235,10 @@ public void testGetIslandAtLocation() throws InstantiationException, IllegalAcce
 
         Location location2 = mock(Location.class);
         when(location2.getWorld()).thenReturn(world);
-        when(location2.getBlockX()).thenReturn(10);
-        when(location2.getBlockY()).thenReturn(10);
-        when(location2.getBlockZ()).thenReturn(10);
+        when(location2.getBlockX()).thenReturn(10000);
+        when(location2.getBlockY()).thenReturn(100);
+        when(location2.getBlockZ()).thenReturn(10000);
 
-        assertEquals(island, ic.getIslandAt(location2));
-        when(island.inIslandSpace(any(Integer.class), any(Integer.class))).thenReturn(false);
         assertNull(ic.getIslandAt(location2));
     }