From bd128eb4e3446ff84e9d1af5d93c1f98569df6a2 Mon Sep 17 00:00:00 2001
From: Mason <Mason@mason-jwzy9dfja.hsd1.dc.comcast.net.>
Date: Sun, 16 Aug 2009 17:08:08 -0400
Subject: [PATCH] updated earClip init

---
 src/org/poly2tri/Poly2Tri.scala        |  5 -----
 src/org/poly2tri/cdt/AFront.scala      |  3 ---
 src/org/poly2tri/cdt/CDT.scala         |  1 +
 src/org/poly2tri/earClip/EarClip.scala | 13 ++++++++++++-
 4 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/org/poly2tri/Poly2Tri.scala b/src/org/poly2tri/Poly2Tri.scala
index a4c6bbb..00a271c 100644
--- a/src/org/poly2tri/Poly2Tri.scala
+++ b/src/org/poly2tri/Poly2Tri.scala
@@ -395,11 +395,6 @@ class Poly2TriDemo extends BasicGame("Poly2Tri") {
      
 	    var xVerts = polyX.toArray
 	    var yVerts = polyY.toArray
-       
-        if(currentModel != strange) {
-	      xVerts = xVerts.reverse
-          yVerts = yVerts.reverse
-        }
 	   
 	    val t1 = System.nanoTime
 	    earClip.triangulatePolygon(xVerts, yVerts, xVerts.size, earClipResults)
diff --git a/src/org/poly2tri/cdt/AFront.scala b/src/org/poly2tri/cdt/AFront.scala
index 6709096..5c1744a 100644
--- a/src/org/poly2tri/cdt/AFront.scala
+++ b/src/org/poly2tri/cdt/AFront.scala
@@ -117,9 +117,6 @@ class AFront(iTriangle: Triangle) {
 
       node = node.next
     }
-   
-    T1.last.markNeighbor(T2.last)
-    
   }
   
   def -=(tuple: Tuple3[Node, Node, Triangle]) {
diff --git a/src/org/poly2tri/cdt/CDT.scala b/src/org/poly2tri/cdt/CDT.scala
index 16cc29d..e26f0d7 100644
--- a/src/org/poly2tri/cdt/CDT.scala
+++ b/src/org/poly2tri/cdt/CDT.scala
@@ -229,6 +229,7 @@ class CDT(val points: List[Point], val segments: List[Segment], iTriangle: Trian
       // Update neighbors
       edgeNeighbors(nTriangles, T1)
       edgeNeighbors(nTriangles, T2)
+      T1.last.markNeighbor(T2.last)
       
       // Update advancing front
   
diff --git a/src/org/poly2tri/earClip/EarClip.scala b/src/org/poly2tri/earClip/EarClip.scala
index 86f19fc..cd9864c 100644
--- a/src/org/poly2tri/earClip/EarClip.scala
+++ b/src/org/poly2tri/earClip/EarClip.scala
@@ -26,6 +26,7 @@
 package org.poly2tri.earClip
 
 import shapes.Point
+import utils.Util
 
 class EarClip {
 
@@ -37,10 +38,20 @@ class EarClip {
  
 	var numTriangles = 0
  
-	def triangulatePolygon(xv: Array[Float], yv: Array[Float], vn: Int, results: Array[Triangle]): Int = {
+	def triangulatePolygon(x: Array[Float], y: Array[Float], vn: Int, results: Array[Triangle]): Int = {
 			
+	        val p1 = Point(x(0), y(0))
+            val p2 = Point(x(1), y(1))
+            val p3 = Point(x(2), y(2))
+            
+            val ccw = Util.orient2d(p1, p2, p3) > 0
+            
+            val xv = if(ccw) x else x.reverse.toArray
+            val yv = if(ccw) y else y.reverse.toArray
+            
 	        if (vn < 3) return 0
 	        var vNum = vn
+         
 			//Recurse and split on pinch points
 			val pA = new Poly
 			val pB = new Poly