added getMinPointExtension and getMaxPointExtension

BauSystem_Main/src/de/steamwar/bausystem/world/Region.java

@@ -166,11 +166,19 @@ public class Region {
         return prototype.getMaxPoint(this);
     }
 
-    public Point getMinBuildAreaPoint() {
+    public Point getMinPointExtension() {
+        return prototype.getMinPointExtension(this);
+    }
+
+    public Point getMaxPointExtension() {
+        return prototype.getMaxPointExtension(this);
+    }
+
+    public Point getMinPointBuildArea() {
         return prototype.buildArea.getMinPoint(this);
     }
 
-    public Point getMaxBuildAreaPoint() {
+    public Point getMaxPointBuildArea() {
         return prototype.buildArea.getMaxPoint(this);
     }
 
@@ -391,6 +399,23 @@ public class Region {
             );
         }
 
+
+        public Point getMinPointExtension(Region region) {
+            return new Point(
+                    region.minPoint.getX() + offsetX - extensionAxisX,
+                    region.minPoint.getY() + offsetY,
+                    region.minPoint.getZ() + offsetZ - extensionNegativeZ
+            );
+        }
+
+        public Point getMaxPointExtension(Region region) {
+            return new Point(
+                    region.minPoint.getX() + offsetX - extensionAxisX + (sizeX + extensionAxisX * 2),
+                    region.minPoint.getY() + offsetY + sizeY + extensionPositiveY,
+                    region.minPoint.getZ() + offsetZ - extensionNegativeZ + (sizeZ + extensionNegativeZ + extensionPositiveZ)
+            );
+        }
+
         public boolean inRegion(Region region, Location l) {
             return inRange(l.getX(), region.minPoint.getX() + offsetX, sizeX) &&
                     inRange(l.getY(), region.minPoint.getY() + offsetY, sizeY) &&