1 files changed, 51 insertions, 0 deletions
diff --git a/src/base/GeomHelper.h b/src/base/GeomHelper.h
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+++ b/src/base/GeomHelper.h
@@ -0,0 +1,51 @@
+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2 of the License, or (at your option) any later version.
+//
+//  This library 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
+//  Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#ifndef _GeomHelper_H_
+#define _GeomHelper_H_
+
+#include "../api.h"
+
+#include "../glm/glm.hpp"
+
+#include <vector>
+
+namespace avg {
+
+struct AVG_API LineSegment {
+public:
+    LineSegment(const glm::vec2& pt0, const glm::vec2& pt1);
+    glm::vec2 p0;
+    glm::vec2 p1;
+
+    bool isPointOver(const glm::vec2& pt);
+};
+
+bool AVG_API lineSegmentsIntersect(const LineSegment& l0, const LineSegment& l1);
+
+bool AVG_API pointInPolygon(const glm::vec2& pt, const std::vector<glm::vec2>& poly); 
+
+glm::vec2 AVG_API getLineLineIntersection(const glm::vec2& p1, const glm::vec2& v1, 
+        const glm::vec2& p2, const glm::vec2& v2);
+
+}
+#endif
+