From f3980ca02930f85013c5180ca80d0173434a4a2a Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Mon, 25 Jan 2016 11:58:22 -0800
Subject: [PATCH] deprecate chain.getTip().

---
 lib/bcoin/chain.js | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/lib/bcoin/chain.js b/lib/bcoin/chain.js
index 65952b09..8e32f956 100644
--- a/lib/bcoin/chain.js
+++ b/lib/bcoin/chain.js
@@ -492,11 +492,15 @@ Chain.prototype.getTip = function getTip() {
 };
 
 Chain.prototype.isFull = function isFull() {
+  if (!this.tip)
+    return false;
   var delta = utils.now() - this.tip.ts;
   return delta < 40 * 60;
 };
 
 Chain.prototype.fillPercent = function fillPercent() {
+  if (!this.tip)
+    return 0;
   return Math.min(1, this.tip.ts / (utils.now() - 40 * 60));
 };
 
@@ -602,11 +606,15 @@ Chain.prototype.size = function size() {
 };
 
 Chain.prototype.height = function height() {
-  return this.getTip().height;
+  if (!this.tip)
+    return -1;
+  return this.tip.height;
 };
 
 Chain.prototype.currentTarget = function currentTarget() {
-  return this.target(this.getTip());
+  if (!this.tip)
+    return utils.toCompact(network.powLimit);
+  return this.target(this.tip);
 };
 
 Chain.prototype.target = function target(last, block) {