gistfile1.java

import static java.lang.Math.*;

public class Vector {
	
	public float x, y, magnitude;
	
	
	public Vector(double angle) {
		this.x = (float) cos(angle);
		this.y = (float) sin(angle);
		initValues();
	}
	
	public Vector(float angle) {
		this.x = (float) cos(angle);
		this.y = (float) sin(angle);
		initValues();
	}
	
	public Vector(float x, float y) {
		this.x = x;
		this.y = y;
		initValues();
	}

	private void initValues() {
		this.magnitude = (float) sqrt( (pow(x,2)+pow(y,2)) );
	}
	
	public Vector normalize() {
		float dx = this.x / this.magnitude;
		float dy = this.y / this.magnitude;
		return new Vector(dx,dy);
	}
	
	public void speedUp(float speed) {
		this.x = this.x*speed;
		this.y = this.y*speed;
		initValues();
	}
	
	public Vector add(Vector v2) {
		float x3 = this.x+v2.x;
		float y3 = this.y+v2.y;
		return new Vector(x3,y3);
	}
	
	public Vector subtract(Vector v2) {
		float x3 = this.x-v2.x;
		float y3 = this.y-v2.y;
		return new Vector(x3,y3);
	}
	
	public Vector multiply(Vector v2) {
		float x3 = this.x*v2.x;
		float y3 = this.y*v2.y;
		return new Vector(x3,y3);
	}
	
	public Vector divide(Vector v2) {
		float x3 = this.x/v2.x;
		float y3 = this.y/v2.y;
		return new Vector(x3,y3);
	}
	
	public Vector mod(Vector v2) {
		float x3 = this.x%v2.x;
		float y3 = this.y%v2.y;
		return new Vector(x3,y3);
	}
	
	
}