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#include <cfloat>
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#include <cfloat>
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#include <GL/gl.h>
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#include "AABox.h"
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#include "AABox.h"
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using namespace std;
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using namespace std;
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using namespace CGLA;
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using namespace CGLA;
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namespace Geometry
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{
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bool AABox::intersect(const CGLA::Vec3f& p, const CGLA::Vec3f& dir) const
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bool AABox::intersect(const CGLA::Vec3f& p, const CGLA::Vec3f& dir) const
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{
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{
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	Vec3f t0,t1;
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	Vec3f t0,t1;
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	for(int i=0;i<3;++i)
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	for(int i=0;i<3;++i)
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		{
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		{
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	float tmax = min(max(t0[0],t1[0]),min(max(t0[1],t1[1]),max(t0[2],t1[2])));
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	float tmax = min(max(t0[0],t1[0]),min(max(t0[1],t1[1]),max(t0[2],t1[2])));
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	return ( (tmin + CGLA::TINY) <tmax);
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	return ( (tmin + CGLA::TINY) <tmax);
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}
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}
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void AABox::gl_draw() const
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{
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	glBegin(GL_QUADS);
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	Vec3f norm_neg[] = {Vec3f(0,0,-1), Vec3f(-1,0,0), Vec3f(0,-1,0)};
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	Vec3f norm_pos[] = {Vec3f(0,0, 1), Vec3f( 1,0,0), Vec3f(0, 1,0)};
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	for(int j=0;j<3;++j)
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		{
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			glNormal3fv(norm_neg[j].get());
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			Vec3f p = pmin;
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			glVertex3f(p[0], p[1], p[2]);
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			p[(j+1)%3] = pmax[(j+1)%3];
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			glVertex3f(p[0], p[1], p[2]);
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			p[j] = pmax[j];
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			glVertex3f(p[0], p[1], p[2]);
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			p[(j+1)%3] = pmin[(j+1)%3];
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			glVertex3f(p[0], p[1], p[2]);
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		}
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	glEnd();
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	glBegin(GL_QUADS);
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	for(int j=0;j<3;++j)
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		{
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			glNormal3fv(norm_pos[j].get());
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			Vec3f p = pmax;
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			glVertex3f(p[0], p[1], p[2]);
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			p[j] = pmin[j];
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			glVertex3f(p[0], p[1], p[2]);
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			p[(j+1)%3] = pmin[(j+1)%3];
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			glVertex3f(p[0], p[1], p[2]);
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			p[j] = pmax[j];
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			glVertex3f(p[0], p[1], p[2]);
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		}
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	glEnd();
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}
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void AABox::minmax_sq_dist(const CGLA::Vec3f& p,
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void AABox::minmax_sq_dist(const CGLA::Vec3f& p,
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													 float& dmin, float& dmax) const
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													 float& dmin, float& dmax) const
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{
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{
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	const Vec3f a = 0.5*pmax-0.5*pmin;
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	const Vec3f a = 0.5*pmax-0.5*pmin;
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	const Vec3f p0 = pmin + a;
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	const Vec3f p0 = pmin + a;
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	assert(!rvec.empty());
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	assert(!rvec.empty());
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	assert(lvec.size()+rvec.size() == invec.size());
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	assert(lvec.size()+rvec.size() == invec.size());
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	return AABox(tri_pmin, tri_pmax, centre_close);
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	return AABox(tri_pmin, tri_pmax, centre_close);
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}
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}
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}