From 2c898a819201d7f3be25c10a834b7605d494b68f Mon Sep 17 00:00:00 2001
From: johni0702 <me@johni0702.de>
Date: Sat, 24 Dec 2016 01:44:51 +0100
Subject: [PATCH] Prevent rendering without sufficient keyframes (fixes #45)

---
 .../java/com/replaymod/simplepathing/gui/GuiPathing.java   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/java/com/replaymod/simplepathing/gui/GuiPathing.java b/src/main/java/com/replaymod/simplepathing/gui/GuiPathing.java
index 91815070..2c21a106 100644
--- a/src/main/java/com/replaymod/simplepathing/gui/GuiPathing.java
+++ b/src/main/java/com/replaymod/simplepathing/gui/GuiPathing.java
@@ -512,6 +512,13 @@ public class GuiPathing {
             lastTime = time;
         }
 
+        // Make sure there are at least two position- and two time-keyframes
+        if (timeline.getPaths().get(POSITION_PATH).getSegments().isEmpty()
+                || timeline.getPaths().get(TIME_PATH).getSegments().isEmpty()) {
+            GuiInfoPopup.open(replayHandler.getOverlay(), "replaymod.chat.morekeyframes");
+            return false;
+        }
+
         return true;
     }