Android Open Source - android-per-pixel-lighting-demo Vec2

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License

The source code is released under:

Apache License

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Java Source Code

package com.pedroedrasousa.engine;
// ww  w . j  a  va 2  s .  c  o m
public class Vec2 {
    
  public float x, y;
  
  public Vec2() {
    x = y = 0.0f;
  }
  
  public Vec2(float x, float y) {
    this.x = x;
    this.y = y;
  }
  
  public Vec2(float[] v) {
    this.x = v[0];
    this.y = v[1];
  }
  
  public Vec2(Vec2 a) {
    this.x = a.x;
    this.y = a.y;
  }
  
  public void assign(float x, float y) {
    this.x = x;
    this.y = y;
  } 
  
  public void assign(float[] v) {
    this.x = v[0];
    this.y = v[1];
  }
  
  public void assign(Vec2 a) {
    this.x = a.x;
    this.y = a.y;
  }
  
  public void setZero() {
    this.x = 0.0f;
    this.y = 0.0f;
  }
  
  public void add(Vec2 a) {
    this.x += a.x;
    this.y += a.y;
  }
  
  public void sub(Vec2 a) {
    this.x -= a.x;
    this.y -= a.y;
  }
  
  public void scale(float factor) {
    this.x *= factor;
    this.y *= factor;
  }
  
  @Override
  public String toString() {
      return x + ", " + y;
  }
  
  @Override
  public boolean equals(Object obj) {
    
     if (obj == null) {
        return false;
     }

     if (this.getClass() != obj.getClass()) {
        return false;
     }

     if (this.x != ((Vec2)obj).x || this.y != ((Vec2)obj).y) {
        return false;
     }

     return true;
  }
  
  public static Vec2 add(Vec2 a, Vec2 b) {
    return new Vec2(a.x + b.x, a.y + b.y);
  }
  
  public static Vec2 sub(Vec2 a, Vec2 b) {
    return new Vec2(a.x - b.x, a.y - b.y);
  }
  
  public static Vec2 mul(Vec2 a, float f) {
    return new Vec2(a.x * f, a.y * f);
  }
}

Java Source Code List