67 lines
1.8 KiB
C++
Executable File
67 lines
1.8 KiB
C++
Executable File
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#include "Shape.h"
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#include <algorithm> /* sort() */
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#include <functional> /* binary_function */
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#include <utility>
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using namespace std;
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static refptr<Material> default_material;
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static bool default_material_initialized = false;
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Shape::Shape()
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{
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m_transparency = 0.0;
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if (default_material_initialized == false)
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{
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default_material = new Material();
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default_material_initialized = true;
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}
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m_material = default_material;
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}
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Shape::~Shape()
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{
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}
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class BoolIntersectionComparator
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: public std::binary_function<Shape::BoolIntersection,
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Shape::BoolIntersection,
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bool>
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{
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public:
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BoolIntersectionComparator(const Vector & refPoint)
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{
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m_refPoint = refPoint;
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}
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bool operator()(const Shape::BoolIntersection & i1,
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const Shape::BoolIntersection & i2) const
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{
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return (m_refPoint.dist_to(i1.intersection.vector)
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< m_refPoint.dist_to(i2.intersection.vector));
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}
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protected:
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Vector m_refPoint;
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};
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Shape::BoolIntersectionList::BoolIntersectionList(const IntersectionList & l1,
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const IntersectionList & l2,
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const Vector & startPoint)
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{
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for (size_t i = 0, sz = l1.size();
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i < sz;
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i++)
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{
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m_intersections.push_back( BoolIntersection(l1[i], true) );
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}
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for (size_t i = 0, sz = l2.size();
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i < sz;
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i++)
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{
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m_intersections.push_back( BoolIntersection(l2[i], false) );
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}
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sort(m_intersections.begin(),
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m_intersections.end(),
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BoolIntersectionComparator(startPoint));
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}
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