Herz.java

Herz.java

	
public class Herz{
	public static boolean inRaute(double px, double py, double cx, double cy, double b) {
		double x_abstand = Math.abs(cx - px);
		double y_abstand = Math.abs(cy - py);
		if((x_abstand + y_abstand) <= b)	
			return(true);
		else
			return(false);
	}

	public static boolean inKreis(double px, double py, double cx, double cy, double r) {
		double dif_x = (cx - px)*(cx - px);
		double dif_y = (cy - py)*(cy - py);
		double wurzel = Math.sqrt(dif_x + dif_y);
		return (wurzel <= r);
	}

	public static boolean inHerz(double px, double py, double cx, double cy, double b) {
		double d = b*0.4;
		double kreis_links_x = cx - d/2; 
		double kreis_links_y = cy - d/2;

		double kreis_rechts_x = cx + d/2;
		double kreis_rechts_y = cy - d/2;

		if(inRaute(px,py,cx,cy,d) || 
		   inKreis(px,py,kreis_links_x,kreis_links_y,d/Math.sqrt(2)) ||
		   inKreis(px,py,kreis_rechts_x,kreis_rechts_y,d/Math.sqrt(2)) ) {
			return true;
		}else return false;
	}

	public static void main(String[] params){ 
		
		System.out.print("Breite eingeben: ");
		double durchmesser = IO.readInt();
		double cx = durchmesser/2;
		double cy = durchmesser/2;
		
		for(int y = 0; y <= durchmesser; y++) {
			for(int x = 0; x <= durchmesser; x++) {
				if(inHerz(x,y*2,cx,cy*2,durchmesser)) {
					System.out.print("#");
				}else{
					System.out.print("_");
				}
			}	
			System.out.println("");
		}	
	}
}