Create Point2D.java

A point 2d

src/main/java/br/com/rafael/math/geometry/plane/Point2D.java

@@ -0,0 +1,101 @@
+package br.com.rafael.math.geometry.plane;
+/**
+ * Copyright© 2020 Victor Rafael Pereira Alves
+ *
+ * <p>This file is part of MathUtils.
+ *
+ * <p>MathUtils is free software: you can redistribute it and/or modify it under the terms of the
+ * Lesser GNU General Public License as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * <p>MathUtils is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+ * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser
+ * GNU General Public License for more details.
+ *
+ * <p>You should have received a copy of the Lesser GNU General Public License along with MathUtils.
+ * If not, see &#60;https://www.gnu.org/licenses/ &#62;.
+ */
+import br.com.rafael.math.geometry.plane.Point2D;
+
+import java.io.Serializable;
+
+public class Point2D implements Cloneable, Serializable {
+
+  private static final long serialVersionUID = 0L;
+
+  private double _x;
+  private double _y;
+
+  public Point2D() {
+    _x = _y = 0;
+  }
+
+  public Point2D(double x, double y) {
+    _x = x;
+    _y = y;
+  }
+
+  public void setX(double x) {
+    _x = x;
+  }
+
+  public void setY(double y) {
+    _y = y;
+  }
+
+  public double getX() {
+    return _x;
+  }
+
+  public double getY() {
+    return _y;
+  }
+
+  public double distance(Point2D other) {
+    double disX = _x - other._x;
+    double disY = _y - other._y;
+
+    return Math.sqrt(disX * disX + disY * disY);
+  }
+
+  public boolean isCollide(Point2D other) {
+    return this.equals(other) && this != other;
+  }
+
+  @Override
+  public Point2D clone() {
+    try {
+      return (Point2D) super.clone();
+    } catch (CloneNotSupportedException e) {
+      throw new AssertionError();
+    }
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) return true;
+    if (!(o instanceof Point2D)) return false;
+    Point2D point = (Point2D) o;
+    return this._x == point._x && this._y == point._y;
+  }
+
+  @Override
+  public int hashCode() {
+    int result = 17;
+
+    result = result * 31 + hashDouble(_x);
+    result = result * 31 + hashDouble(_y);
+
+    return result;
+  }
+
+  private int hashDouble(double d) {
+    long longBits = Double.doubleToLongBits(d);
+    return (int) (longBits ^ (longBits >>> 32));
+  }
+
+  @Override
+  public String toString() {
+    return "[" + _x + ", " + _y + "]";
+  }
+}