package src;

public class MyLineSub extends MyPoint2 {

// A line needs two points: begin and end.

// The begin point is inherited from its superclass Point.

MyPoint2 end;

// Constructors

public MyLineSub (int beginX, int beginY, int endX, int endY) {

super(beginX, beginY);

this.end = new MyPoint2(endX, endY);

}

public MyLineSub (MyPoint2 begin, MyPoint2 end) {

super(begin.getX(), begin.getY());

this.end = end;

}

@Override

public String toString() {

return "Line: ("+getX()+", "+getY()+") - ("

+ end.getX()+", "+end.getY() +")";

}

public MyPoint2 getBegin() {

return new MyPoint2(getX(), getY());

}

public MyPoint2 getEnd() {

return end;

}

public void setBegin(MyPoint2 begin) {

this.setXY(begin.getX(), begin.getY());

}

public void setEnd(MyPoint2 end) {

this.end.setXY(end.getX(), end.getY());

}

public int getBeginX() {

return getX();

}

public int getBeginY() {

return getY();

}

public int getEndX() {

return end.getX();

}

public int getEndY() {

return end.getY();

}

public void setBeginX(int x) {

setX(x);

}

public void setBeginY(int y) {

setY(y);

}

public void setBeginXY(int x, int y) {

setXY(x, y);

}

public void setEndX(int x) {

end.setX(x);

}

public void setEndY(int y) {

end.setY(y);

}

public void setEndXY(int x , int y) {

end.setXY(x, y);

}

public int getLength() {

int xDiff = getEndX() - getBeginX();

int yDiff = getEndY() - getBeginY();

return (int) Math.sqrt(xDiff*xDiff + yDiff*yDiff);

}

public double getGradient() {

int xDiff = getEndX() - getBeginX();

int yDiff = getEndY() - getBeginY();

return Math.atan2(yDiff, xDiff);

}

}