/*
 * © Copyright 2014 – Urheberrechtshinweis
 * Alle Rechte vorbehalten / All Rights Reserved
 *
 * Programmcode ist urheberrechtlich geschuetzt.
 * Das Urheberrecht liegt, soweit nicht ausdruecklich anders gekennzeichnet, bei Frank Ebner.
 * Keine Verwendung ohne explizite Genehmigung.
 * (vgl. § 106 ff UrhG / § 97 UrhG)
 */

#ifndef FLOORPLAN_3D_LINES_H
#define FLOORPLAN_3D_LINES_H

#include "Walls.h"
#include "misc.h"
#include "primitives/Cube.h"

namespace Floorplan3D {

	/**
	 * simply use one 3D cube per wall
	 * if walls intersect in the 2D view, cubes will also intersect
	 */
	class LinesViaCubes : public Walls {

		Cube::Part cubeParts = (Cube::Part) 63;	// leftright,topbottom,rearfront

		std::vector<Obstacle3D> vec;

	public:

		void clear() override {
			vec.clear();
		}

		void add(const Floorplan::Floor* f, const Floorplan::FloorObstacleLine* fol, const Floorplan::FloorObstacleDoor* aboveDoor) override {

			FloorPos fpos(f);

			const float thickness_m = fol->thickness_m;
			const Point2 from = (!aboveDoor) ? (fol->from) :	(aboveDoor->from);
			const Point2 to =	(!aboveDoor) ? (fol->to) :		(aboveDoor->to);
			const Point2 cen2 = (from+to)/2;

			const float rad = std::atan2(to.y - from.y, to.x - from.x);
			const float deg = rad * 180 / M_PI;

			// cube's destination center
			const float _height =	(fol->height_m > 0) ? (fol->height_m) :		(fpos.height);	// use either floor's height or user height
			const double height =	(!aboveDoor) ? (_height) :					(fpos.height - aboveDoor->height);
			const double cenZ =		(!aboveDoor) ? (fpos.z1 + height/2) :		(fpos.z1 + aboveDoor->height + height/2);// (fpos.z2 - (fpos.height - aboveDoor->height) / 2);
			const Point3 pos(cen2.x, cen2.y, cenZ);

			// div by 2.01 to prevent overlapps and z-fighting
			const float sx = from.getDistance(to) / 2;
			const float sy = thickness_m / 2;
			const float sz = height / 2.01f;	// prevent overlaps
			const Point3 size(sx, sy, sz);
			const Point3 rot(0,0,deg);

			// build
			Cube cube(pos, size, rot, cubeParts);

			// done
			Obstacle3D res(getType(fol), fol->material);
			res.triangles = cube.getTriangles();
			vec.push_back(res);

		}

		const std::vector<Obstacle3D>& get() override {
			return vec;
		}

	};

}

#endif // FLOORPLAN_3D_LINES_H