/*
 * Verrückte Turing-Maschinen — A turing complete game
 * Copyright (C) 2016 Christian Fraß <vidofnir@folksprak.org>
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

module mod_vtm_manifestation
	{
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export const svg_float_praezission : int = 4;
		
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export const svg_form_pfeil : string = "M +4 0 L 0 +1 L 0 -1 Z";
		
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export function svg_pfad
			(
				vertices : Array<mod_vtm_helfer.typ_vektor>,
				schliessen : boolean = true,
				attribute : {[schlussel : string] : string} = {},
			)
			: mod_vtm_helfer.typ_xmlknoten
			{
				let d : string = "";
				vertices.forEach
					(
						(vertex, index) =>
							{
								let c : string = ((index <= 0) ? "M" : "L");
								let x : string = vertex.x.toFixed(svg_float_praezission);
								let y : string = vertex.y.toFixed(svg_float_praezission);
								d += [c, x, y].join(" ");
							}
					)
				;
				if (schliessen)
					d += "Z";
				attribute["d"] = d;
				return (mod_vtm_helfer.xmlknoten_normal_erstellen_erweitert("path", attribute));
			}
		
		
		/**
		 * @author kcf <vidofnir@folksprak.org>
		 */
		export function svg_wurzel
			(
				von_x : float,
				von_y : float,
				bis_x : float,
				bis_y : float,
				hoehe : int = 500,
				breite : int = 500,
				kinder : Array<mod_vtm_helfer.typ_xmlknoten> = []
			)
			: mod_vtm_helfer.typ_xmlknoten
			{
				return (
					mod_vtm_helfer.xmlknoten_normal_erstellen_erweitert
						(
							"svg",
							{
								"xmlns": "http://www.w3.org/2000/svg",
								"xmlns:xlink": "http://www.w3.org/1999/xlink",
								"width": breite.toFixed(0),
								"height": hoehe.toFixed(0),
								"viewBox": [von_x.toFixed(4), von_y.toFixed(4), (bis_x-von_x).toFixed(4), (bis_y-von_y).toFixed(4)].join(" "),
							},
							kinder,
						)
				);
			}
		
	}