From c2e13a67d969f1208a8b8c127c94a9841c7048d9 Mon Sep 17 00:00:00 2001
From: Florian Jung <flo@windfisch.org>
Date: Mon, 24 Aug 2015 18:06:59 +0200
Subject: cell motion history

---
 gui.py        |  7 +++++++
 main.py       |  5 +++--
 subscriber.py | 31 +++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/gui.py b/gui.py
index 19fffbb..440e0ef 100644
--- a/gui.py
+++ b/gui.py
@@ -142,6 +142,11 @@ def generate_virus(spikes, spike_length, radius, global_coords):
 
 def draw_cell(cell):
     cx,cy = world_to_win_pt(cell.pos,c.player.center)
+    try:
+        cx2,cy2 = world_to_win_pt(cell.poslog[-2],c.player.center)
+    except:
+        print("wtf, no poslog available?!")
+        cx2,cy2=cx,cy
     radius = world_to_win_length(cell.size)
 
     if cell.is_virus:
@@ -158,6 +163,8 @@ def draw_cell(cell):
             gfxdraw.aapolygon(screen, polygon2, color)
     else:
         color=(int(cell.color[0]*255), int(cell.color[1]*255), int(cell.color[2]*255))
+
+        gfxdraw.filled_circle(screen, cx2, cy2, radius, (127,127,127))
         
         if not (cell.is_ejected_mass or cell.is_food):
             gfxdraw.filled_circle(screen, cx, cy, radius, color)
diff --git a/main.py b/main.py
index d13c4ea..fd75b42 100644
--- a/main.py
+++ b/main.py
@@ -9,13 +9,14 @@ import time
 import random
 import gui
 import stats
-from subscriber import DummySubscriber
+from subscriber import EnhancingSubscriber
 from interval_utils import *
 from strategy import *
 
 # global vars
-sub = DummySubscriber()
+sub = EnhancingSubscriber()
 c = client.Client(sub)
+sub.set_client(c)
 stats = stats.Stats()
 
 for i in range(1,10): # 10 connection attempts
diff --git a/subscriber.py b/subscriber.py
index a637e67..1dcccc6 100644
--- a/subscriber.py
+++ b/subscriber.py
@@ -1,4 +1,5 @@
 from log import log
+from collections import deque
 import sys
 
 class DummySubscriber:
@@ -65,3 +66,33 @@ class DummySubscriber:
     def on_debug_line(self,x,y):
         log("debug line")
 
+class CellHistory:
+    def __init__(self):
+        self.poslog = deque(maxlen=10)
+        self.stale = False
+
+class EnhancingSubscriber(DummySubscriber):
+    def __init__(self):
+        self.c = None
+        self.history = {}
+
+    def set_client(self,c):
+        self.c = c
+    
+    def on_world_update_post(self):
+        for cid in self.history:
+            self.history[cid].stale = True
+
+        for cid in self.c.world.cells:
+            if cid not in self.history:
+                self.history[cid] = CellHistory()
+                print("unknown cell")
+            
+            self.history[cid].poslog.append(self.c.world.cells[cid].pos.copy())
+            self.c.world.cells[cid].poslog = self.history[cid].poslog
+            print("poslog of size="+str(len(self.history[cid].poslog)))
+            
+            self.history[cid].stale = False
+
+        self.history = {k: v for k, v in self.history.items() if v.stale == False}
+
-- 
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