Added radius claim

src/com/massivecraft/factions/FLocation.java

@@ -1,8 +1,12 @@
 package com.massivecraft.factions;
 
 import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.Set;
 
+import org.bukkit.Bukkit;
 import org.bukkit.Location;
+import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.entity.Player;
 
@@ -64,6 +68,11 @@ public class FLocation
 	{
 		return worldName;
 	}
+	
+	public World getWorld()
+	{
+		return Bukkit.getWorld(worldName);
+	}
 
 	public void setWorldName(String worldName)
 	{
@@ -104,10 +113,46 @@ public class FLocation
 	// Misc Geometry
 	//----------------------------------------------//
 	
-	public FLocation getRelative(int dx, int dz) {
+	public FLocation getRelative(int dx, int dz)
+	{
 		return new FLocation(this.worldName, this.x + dx, this.z + dz);
 	}
 	
+	public double getDistanceTo(FLocation that)
+	{
+		double dx = that.x - this.x;
+		double dz = that.z - this.z;
+		return Math.sqrt(dx*dx+dz*dz); 
+	}
+	
+	//----------------------------------------------//
+	// Some Geometry
+	//----------------------------------------------//
+	public Set<FLocation> getCircle(double radius)
+	{
+		Set<FLocation> ret = new LinkedHashSet<FLocation>();
+		if (radius <= 0) return ret;
+		
+		int xfrom = (int) Math.floor(this.x - radius);
+		int xto =   (int) Math.ceil(this.x + radius);
+		int zfrom = (int) Math.floor(this.z - radius);
+		int zto =   (int) Math.ceil(this.z + radius);
+		
+		for (int x=xfrom; x<=xto; x++)
+		{
+			for (int z=zfrom; z<=zto; z++)
+			{
+				FLocation potential = new FLocation(this.worldName, x, z);
+				if (this.getDistanceTo(potential) <= radius)
+				{
+					ret.add(potential);
+				}
+			}	
+		}
+		
+		return ret;
+	}
+	
 	public static HashSet<FLocation> getArea(FLocation from, FLocation to)
 	{
 		HashSet<FLocation> ret = new HashSet<FLocation>();