added event Chunk load

core/src/main/java/mc/core/GameLoop.java

@@ -9,8 +9,11 @@ import lombok.Setter;
 import lombok.extern.slf4j.Slf4j;
 import mc.core.events.CS_PlayerMoveEvent;
 import mc.core.events.EventBusGetter;
+import mc.core.events.SC_ChunkLoadEvent;
 import mc.core.player.PlayerManager;
 import mc.core.time.TimeProcessor;
+import mc.core.utils.CompactedCoords;
+import mc.core.world.chunk.ChunkSection;
 import org.springframework.beans.factory.annotation.Autowired;
 
 @Slf4j
@@ -46,6 +49,36 @@ public class GameLoop extends Thread {
         log.trace("(GameLoop) playerMoveEventHandler()");
         event.getPlayer().getLocation().setXYZ(event.getNewLocation());
 
+        ChunkSection chunkSection = event.getNewLocation().getChunkSection();
+        int ncX = chunkSection.getX();
+        int ncZ = chunkSection.getZ();
+        chunkSection = event.getPlayer().getLocation().getChunkSection();
+        int ccX = chunkSection.getX();
+        int ccZ = chunkSection.getZ();
+
+        if (event.isRecalcChunk() || (ncX != ccX && ncZ != ccZ)) {
+            /* FIXME заменить "8" на актуальный view distance */
+            final int viewDistance = 8;
+            int cMinX = chunkSection.getX() - viewDistance;
+            int cMaxX = chunkSection.getX() + viewDistance;
+            int cMinZ = chunkSection.getZ() - viewDistance;
+            int cMaxZ = chunkSection.getZ() + viewDistance;
+
+            SC_ChunkLoadEvent eventChunkLoad = new SC_ChunkLoadEvent(event.getPlayer());
+            for (int cZ = cMinZ; cZ <= cMaxZ; cZ++) {
+                for (int cX = cMinX; cX <= cMaxX; cX++) {
+                    int compressXZ = CompactedCoords.compressXZ(cX, cZ);
+                    if (!event.getPlayer().getLoadedChunks().contains(compressXZ)) {
+                        eventChunkLoad.getNeedLoadChunks().add(compressXZ);
+                    }
+                }
+            }
+
+            if (!eventChunkLoad.getNeedLoadChunks().isEmpty()) {
+                EventBusGetter.INSTANCE.post(eventChunkLoad);
+            }
+        }
+
         // TODO отсылать клиенту только(!) для корректировки позиции
 //        SC_PlayerMoveEvent nextEvent = new SC_PlayerMoveEvent(event.getPlayer());
 //        nextEvent.setNewLocation(event.getNewLocation());

core/src/main/java/mc/core/events/CS_PlayerMoveEvent.java

@@ -18,4 +18,6 @@ public class CS_PlayerMoveEvent extends EventBase {
     // вообще нужно будет создать реализацию "иммутабл локейшен" для подобных ситуаций
     @Setter
     private EntityLocation newLocation;
+    @Setter
+    private boolean recalcChunk = false;
 }

core/src/main/java/mc/core/events/SC_ChunkLoadEvent.java

@@ -0,0 +1,16 @@
+package mc.core.events;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import mc.core.player.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RequiredArgsConstructor
+public class SC_ChunkLoadEvent extends EventBase {
+    @Getter
+    private final Player player;
+    @Getter
+    private List<Integer> needLoadChunks = new ArrayList<>();
+}

core/src/main/java/mc/core/player/Player.java

@@ -7,6 +7,7 @@ package mc.core.player;
 import mc.core.EntityLocation;
 import mc.core.network.NetChannel;
 
+import java.util.List;
 import java.util.UUID;
 
 public interface Player {
@@ -15,10 +16,14 @@ public interface Player {
     String getName();
     boolean isOnline();
 
+    /** Compacted list of Chunk coords (x,z) */
+    List<Integer> getLoadedChunks();
+
     NetChannel getChannel();
     void setChannel(NetChannel channel);
 
     EntityLocation getLocation();
+    //TODO надо определиться - нужно ли здесь setLocation() или нет
 
     boolean isFlying();
     void setFlying(boolean value);

core/src/main/java/mc/core/player/SimplePlayer.java

@@ -8,6 +8,8 @@ import lombok.Data;
 import mc.core.EntityLocation;
 import mc.core.network.NetChannel;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.UUID;
 
 @Data
@@ -20,6 +22,7 @@ public class SimplePlayer implements Player {
     private EntityLocation location = new EntityLocation(0d, 0d, 0d, 0f, 0f, null);
     private boolean flying = false;
     private PlayerSettings settings;
+    private List<Integer> loadedChunks = new ArrayList<>();
 
     public void setLocation(EntityLocation location) {
         this.location.setXYZ(location);