X-Git-Url: http://gitweb.pgornicz.com/gitweb.cgi?a=blobdiff_plain;f=src%2FEntities%2FPolygon.cpp;h=cd03d853056ff035b4a711eafc60ce094be1f225;hb=aa2791cf43a9ddd3a288e504db08e11d03439653;hp=bd2a38ddd4bca94b59abb377289f3b3c7053cb2d;hpb=379cc454ab369431b3bdd2fe97cb2e6a1d68c26d;p=physics.git

diff --git a/src/Entities/Polygon.cpp b/src/Entities/Polygon.cpp
index bd2a38d..cd03d85 100644
--- a/src/Entities/Polygon.cpp
+++ b/src/Entities/Polygon.cpp
@@ -1,24 +1,69 @@
+/*
+ *  Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com.
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #include "Polygon.h"
-#include "../Vector2.h"
+#include "debug.h"
 
-/// ***** Public Class Methods *****
-Polygon::Polygon(Vector2 pos, vector<Vector2> points)
-    : PhysicsEntity(pos), points(points)
+#include "Vector2.h"
+
+#include "graphics/graphics.h"
+
+
+/// ***** Constructors/Destructors *****
+
+Polygon::Polygon(const vector<Vector2>& points)
+    : PhysicsEntity(Vector2(0,0)), points(points)
 {
-    CreateBindingBox();
+    DASSERT(0 < points.size());
+
+    createBindingBox();
+    centerPosition();
 }
 Polygon::~Polygon()
 {
 
 }
 
+/// ***** Public Class Methods *****
+
 void Polygon::draw() const
 {
-    // TODO
+    graphics::drawPolygon(points);
 }
 
 /// ***** Private Class Methods *****
-void Polygon::CreateBindingBox()
+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
 }