Android Open Source - X3n0break Vector

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License

The source code is released under:

GNU General Public License

Java Source Code

package org.x3n0m0rph59.breakout;
//from ww w .  j av a  2s . c  om
public final class Vector {
  private final float x, y, theta;
  
  public Vector(float x, float y, float theta) {
    this.x = x;
    this.y = y;
    
    this.theta = theta;
  }
  
  public Vector add(Vector rhs) {    
    return new Vector(this.x + rhs.x, this.y + rhs.y, theta);
  }
  
  public Vector mult(float scalar) {    
    return new Vector(this.x * scalar, this.y * scalar, theta);
  }
      
  public float dot(Vector rhs) {  
    return (this.x * rhs.x) + (this.y * rhs.y);
  }
  
  public Vector cross(Vector rhs) {  
    return new Vector(rhs.y, -rhs.x, 0.0f);
  }
  
  public Vector normalize() {
    if (magnitude() == 0)
      return this;
    else
      return new Vector(x / magnitude(), y / magnitude(), theta);
  }
  
  public float magnitude() {  
    return (float) Math.sqrt((x * x) + (y * y));
  }
  
  public float getX() {
    return x;
  }

  public float getY() {
    return y;
  }

  public float getTheta() {
    return theta;
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + Float.floatToIntBits(theta);
    result = prime * result + Float.floatToIntBits(x);
    result = prime * result + Float.floatToIntBits(y);
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (obj == null)
      return false;
    if (getClass() != obj.getClass())
      return false;
    Vector other = (Vector) obj;
    if (Float.floatToIntBits(theta) != Float.floatToIntBits(other.theta))
      return false;
    if (Float.floatToIntBits(x) != Float.floatToIntBits(other.x))
      return false;
    if (Float.floatToIntBits(y) != Float.floatToIntBits(other.y))
      return false;
    return true;
  }

  @Override
  public String toString() {
    return "Vector [x=" + x + ", y=" + y + ", theta=" + theta + "]";
  }
}

Java Source Code List

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