package org.expeditee.gio.swing;


/**
	 * Obtained from stackoverflow.
	 * https://stackoverflow.com/questions/48799393/robot-mousemove-not-moving-to-specified-location-properly
	 * Fixes a (hopefully temporary) issue with the java.awt.Robot class on some
	 * specific systems (such as David's laptop) wherein the mouseMove function
	 * would move the mouse to odd locations.
	 * 
	 * @author bln4
	 *
	 */

import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.MouseInfo;
import java.awt.Robot;
import java.awt.Toolkit;

public class MouseCorrectRobot extends Robot {
		final Dimension ScreenSize;// Primary Screen Size

		public MouseCorrectRobot() throws AWTException {
			super();
			ScreenSize = Toolkit.getDefaultToolkit().getScreenSize();
		}

		private double getTav(java.awt.Point a, java.awt.Point b) {
			return Math.sqrt((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y));
		}

		public void MoveMouseControlled(double xbe, double ybe)// Position of the cursor in [0,1] ranges. (0,0) is the
																// upper
																// left corner
		{

			int xbepix = (int) (ScreenSize.width * xbe);
			int ybepix = (int) (ScreenSize.height * ybe);

			int x = xbepix;
			int y = ybepix;

			java.awt.Point mert = MouseInfo.getPointerInfo().getLocation();
			java.awt.Point ElozoInitPont = new java.awt.Point(0, 0);

			int UgyanAztMeri = 0;
			final int UgyanAZtMeriLimit = 30;

			int i = 0;
			final int LepesLimit = 20000;
			while ((mert.x != xbepix || mert.y != ybepix) && i < LepesLimit && UgyanAztMeri < UgyanAZtMeriLimit) {
				++i;
				if (mert.x < xbepix) {
					++x;
				} else {
					--x;
				}
				if (mert.y < ybepix) {
					++y;
				} else {
					--y;
				}
				mouseMove(x, y);

				mert = MouseInfo.getPointerInfo().getLocation();

				if (getTav(ElozoInitPont, mert) < 5) {
					++UgyanAztMeri;
				} else {
					UgyanAztMeri = 0;
					ElozoInitPont.x = mert.x;
					ElozoInitPont.y = mert.y;
				}

			}
		}

}