#ifndef GEOMETRY_H

#define GEOMETRY_H

#include <QPointF>

#include <QRectF>

#include <QPolygonF>

QRectF addBBox(QRectF r1, QRectF r2);

bool inBox(const QPointF &p, const QRectF &box);

QPointF normalize (const QPointF &p);

qreal dotProduct (const QPointF &a, const QPointF &b);

class PolygonCollisionResult {

public:

    // Are the polygons going to intersect forward in time?

    bool willIntersect;

    // Are the polygons currently intersecting?

    bool intersect;

    // The translation to apply to the first polygon to push the polygons apart.

    QPointF minTranslation;

};

void ProjectPolygon(QPointF axis, QPolygonF polygon, qreal &min, qreal &max) ;

qreal intervalDistance(qreal minA, qreal maxA, qreal minB, qreal maxB);

PolygonCollisionResult PolygonCollision(QPolygonF polygonA, 

                              QPolygonF polygonB, QPointF velocity);

#endif