package Aufgabenzettel;

import java.awt.Graphics;

import javax.swing.JComponent;

public class Bresenhamline extends JComponent {
	
	//Variablen initialisieren
	double ixa,iya,ixe,iye; //Übergabeargumente ixa = input x anfang; iye = input y ende
	int xstart,xende,ystart,yende,dx,dy,adx,sdx,ady,sdy;

	public Bresenhamline(double ixa, double iya, double ixe, double iye) {

		this.ixa = ixa;
		this.iya = iya;
		this.ixe = ixe;
		this.iye = iye;
		this.xstart = (int)Math.ceil(ixa+0.5); //Umwandlung in integer
		this.xende = (int)Math.ceil(ixe+0.5);
		this.ystart = (int)Math.ceil(iya+0.5);
		this.yende = (int)Math.ceil(iye+0.5);
		this.dx = xende - xstart;
		this.dy = ystart - yende;
		this.adx = Math.abs(dx); // Absolutbetraege von dx u dy
		this.ady = Math.abs(dy);
		if(dx < 0 ){
			 sdx = -1;
		} else {
			sdx = 1;
		}
		int sdy;
		if(dy < 0 ){
			sdy = -1;
		} else {
			sdy = 1;
		}
	}
}