/*
 * © 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_DOORS_H
#define FLOORPLAN_3D_DOORS_H

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

namespace Floorplan3D {

	class Doors {

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

	public:

		std::vector<Obstacle3D> getDoors(const Floorplan::Floor* floor) {
			std::vector<Obstacle3D> res;
			for (const Floorplan::FloorObstacle* o: floor->obstacles) {
				const Floorplan::FloorObstacleWall* wall = dynamic_cast<const Floorplan::FloorObstacleWall*>(o);
				if (wall) {
					for (const Floorplan::FloorObstacleWallDoor* door : wall->doors) {
						res.push_back(getDoor(floor, wall, door));
					}
				}
			}
			return res;
		}

		Obstacle3D getDoor(const Floorplan::Floor* f, const Floorplan::FloorObstacleWall* wall, const Floorplan::FloorObstacleWallDoor* door) {

			FloorPos fpos(f);

			const float thickness_m = 0.1;
			const Point2 from = door->getStart(wall);
			const Point2 to =	door->getEnd(wall);
			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 double height =	door->height;
			const double cenZ =		(fpos.z1 + 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(Obstacle3D::Type::DOOR, door->material);
			res.triangles = cube.getTriangles();
			return res;

		}

	};

}

#endif // FLOORPLAN_3D_DOORS_H