added suport for ballxpolygon collision ... VERY hacky

[physics.git] / src / Entities / Polygon.cpp

diff --git a/src/Entities/Polygon.cpp b/src/Entities/Polygon.cpp
index bf2fb00..cd03d85 100644 (file)
--- a/src/Entities/Polygon.cpp
+++ b/src/Entities/Polygon.cpp
@@ -31,6 +31,7 @@ Polygon::Polygon(const vector<Vector2>& points)
     DASSERT(0 < points.size());
 
     createBindingBox();
+    centerPosition();
 }
 Polygon::~Polygon()
 {
@@ -47,5 +48,22 @@ void Polygon::draw() const
 /// ***** Private Class Methods *****
 void Polygon::createBindingBox()
 {
+    DASSERT(0 < points.size());
+
+    maxP = points.at(0);
+    minP = points.at(0);
+
+    for(unsigned int i=1; i<points.size(); i++)
+    {
+             if(points[i].x < minP.x) minP.x = points[i].x;
+        else if(points[i].x > maxP.x) maxP.x = points[i].x;
+
+             if(points[i].y < minP.y) minP.y = points[i].y;
+        else if(points[i].y > maxP.y) maxP.y = points[i].y;
+    }
+}
+
+void Polygon::centerPosition()
+{
     // TODO
 }