Add optimization on getPosToGenerate.

src/main/java/com/seibel/lod/core/objects/PosToGenerateContainer.java

@@ -138,6 +138,16 @@ public class PosToGenerateContainer
 		return farSize;
 	}
 	
+	public int getMaxNumberOfNearPos()
+	{
+		return nearPosToGenerate.length;
+	}
+	
+	public int getMaxNumberOfFarPos()
+	{
+		return farPosToGenerate.length;
+	}
+	
 	// TODO what does getNth mean? could the name be more descriptive or is it just a index?
 	public int getNthDetail(int n, boolean near)
 	{

src/main/java/com/seibel/lod/core/objects/lod/LodDimension.java

@@ -473,6 +473,7 @@ public class LodDimension
 				}
 				if (updated) {
 					region.needRegenBuffer = 2;
+					region.needRecheckGenPoint = true;
 					regenDimensionBuffers = true;
 				}
 			});
@@ -534,9 +535,23 @@ public class LodDimension
 			//boolean isCloseRange = true;
 			//All of this is handled directly by the region, which scan every pos from top to bottom of the quad tree
 			LodRegion lodRegion = regions[x][z];
-			if (lodRegion != null)
+			
+			
+			if (lodRegion != null && lodRegion.needRecheckGenPoint) {
+				int nearCount = posToGenerate.getNumberOfNearPos();
+				int farCount = posToGenerate.getNumberOfFarPos();
+				boolean checkForFlag = (nearCount < posToGenerate.getMaxNumberOfNearPos() && farCount < posToGenerate.getMaxNumberOfFarPos());
+				if (checkForFlag) {
+					lodRegion.needRecheckGenPoint = false;
+				}
 				lodRegion.getPosToGenerate(posToGenerate, playerBlockPosX, playerBlockPosZ, allowedPriority, genMode,
 						isCloseRange);
+				if (checkForFlag) {
+					if (nearCount != posToGenerate.getNumberOfNearPos() || farCount != posToGenerate.getNumberOfFarPos()) {
+						lodRegion.needRecheckGenPoint = true;
+					}
+				}
+			}
 		});
 	return posToGenerate;
 	}

src/main/java/com/seibel/lod/core/objects/lod/LodRegion.java

@@ -67,6 +67,7 @@ public class LodRegion {
 	/** this region's z RegionPos */
 	public final int regionPosZ;
 
+	public volatile boolean needRecheckGenPoint = true;
 	public volatile int needRegenBuffer = 2;
 	public volatile boolean needSaving = false;
 	public volatile int isWriting = 0;
@@ -532,6 +533,7 @@ public class LodRegion {
 			minDetailLevel = levelContainer.getDetailLevel();
 
 		dataContainer[levelContainer.getDetailLevel()] = levelContainer;
+		needRecheckGenPoint = true;
 	}
 
 	// TODO James thinks cutTree and growTree (which he renamed to match cutTree)
@@ -564,6 +566,7 @@ public class LodRegion {
 				dataContainer[detailLevelIndex] = dataContainer[detailLevelIndex + 1].expand();
 			}
 			minDetailLevel = detailLevel;
+			needRecheckGenPoint = true;
 		}
 	}