From 8a44a7c1f11211d56d54c185dc8fdc90e35f221b Mon Sep 17 00:00:00 2001
From: Florian Jung <flo@windfisch.org>
Date: Mon, 24 Aug 2015 18:52:36 +0200
Subject: draw the direction where ejected mass would fly

---
 subscriber.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'subscriber.py')

diff --git a/subscriber.py b/subscriber.py
index 1dcccc6..feddf04 100644
--- a/subscriber.py
+++ b/subscriber.py
@@ -95,4 +95,14 @@ class EnhancingSubscriber(DummySubscriber):
             self.history[cid].stale = False
 
         self.history = {k: v for k, v in self.history.items() if v.stale == False}
+        
 
+        for cid in self.c.world.cells:
+            cell = self.c.world.cells[cid]
+            try:
+                oldpos = cell.poslog[-3-1]
+                cell.movement = (cell.pos - oldpos)/3
+            except (AttributeError, IndexError):
+                # no oldpos available
+                cell.movement = None
+                pass
-- 
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