Copy getters by reference as well.

xtrn/chess/utils.js

@@ -16,6 +16,17 @@ function parsePos(pos)
 	return ret;
 }
 
+function makePos(pos)
+{
+	if(pos.x == null || pos.x < 1 || pos.x > 8)
+		throw("Illegal location '"+pos.toSource()+"'");
+	if(pos.y == null || pos.y < 1 || pos.y > 8)
+		throw("Illegal location '"+pos.toSource()+"'");
+	var ret=ascii(96+pos.x);
+	ret += ascii(48+pos.y);
+	return ret;
+}
+
 function parseColour(colour)
 {
 	if(colour=='w')
@@ -37,6 +48,9 @@ function toward(from, to)
 function copyProps(from, to)
 {
 	for(prop in from) {
-		to[prop]=from[prop];
+		if(from.__lookupGetter__(prop))
+			to.__defineGetter__(prop, from.__lookupGetter__(prop));
+		else
+			to[prop]=from[prop];
 	}
 }