X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=altoslib%2FAltosPointDouble.java;fp=altoslib%2FAltosPointDouble.java;h=45e7785e4c36eca6af585b7b4a354a229e6c61f5;hp=4a94067646ff29c0c2fbb1d60bf36b8fe7c504cf;hb=0cc03210d5d53d12604688f294b6ca39e3a025de;hpb=5568c30f0a4fe346b8ed58934c23653064427d65

diff --git a/altoslib/AltosPointDouble.java b/altoslib/AltosPointDouble.java
index 4a940676..45e7785e 100644
--- a/altoslib/AltosPointDouble.java
+++ b/altoslib/AltosPointDouble.java
@@ -20,7 +20,19 @@ package org.altusmetrum.altoslib_7;
 public class AltosPointDouble {
 	public double	x, y;
 
-	public boolean equals(AltosPointDouble n) {
+	public int hashCode() {
+		return new Double(x).hashCode() ^ new Double(y).hashCode();
+	}
+
+	public boolean equals(Object o) {
+		if (o == null)
+			return false;
+
+		if (!(o instanceof AltosPointDouble))
+			return false;
+
+		AltosPointDouble n = (AltosPointDouble) o;
+
 		return n.x == x && n.y == y;
 	}