Add effects

main/HalfEdge.pde

@@ -20,10 +20,34 @@ public class HalfEdge {
     // SETS THE COUNTED
     setCounted(false);
     twin.setCounted(false);
-
-    // MAGIC METHOD
+    int state = -1;
+    if ((p.count() == 0) && (q.count() == 0)) {
+      // this new structure was created not connected to anything
+      // watchout inside a face!!!!!
+      state = 0;
+    }
+    else if ((p.count() == 0) || (q.count() == 0)) {
+      // this means that this edge was addeded such that only one point is already a connected graph 
+      // easy fix
+      state = 1;
+    }
+    else { 
+      // this means both things are connected graph if here that means
+      // risk of new face or connected two unconnected components;
+      state = -1;
+    }
+    int expected = p.count() + q.count() + 2;
     connect();
     twin.connect();
+    if (state == -1) {
+      if (p.count() == expected) {
+        // two disconnected graphs are now one!
+        state = 2;
+      } else {
+        state = 3;
+        // a face is divided in 2.
+      }
+    }
 
 
 
@@ -37,25 +61,26 @@ public class HalfEdge {
 
   public int connect() {
     ArrayList<HalfEdge> others = origin.getEntering();
+    int result = -1;
     if (others == null) { 
       this.setprevious(gettwin());
       gettwin().setnext(this);
       // update vertex
       makeVertexReference();
-      return 0;
+      result = 0;
     }
-    if (others.size() == 1) {
+    else if (others.size() == 1) {
       HalfEdge other = others.get(0);
       this.setprevious(other);
       other.setnext(this);
       gettwin().setnext(other.gettwin());
       other.gettwin().setprevious(gettwin());
-
-
-      // no update vertex
-      return 1;
+      result = 1;
     }
-    return complex(this, others); 
+    else if (others.size() > 1) {
+      result = complex(this, others); 
+    }
+    return result;
   }
 
 
@@ -88,7 +113,11 @@ public class HalfEdge {
 
 
 
-
+  public int countReset() {
+    int c = count();
+    reset();
+    return c;
+  }
 
   public int count() {
     if (counted == false) {

main/Point.pde

@@ -47,4 +47,9 @@ public class Point {
     return "(x,y) = " +  x + "," + y; 
   }
 
+  public int count() {
+    if (ref == null) { return 0; }
+    return ref.countReset();
+  }
+
 }