From d4a42e1793e09423c886a4411f61db88fe1151ff Mon Sep 17 00:00:00 2001
From: Alec Thomas <alec@swapoff.org>
Date: Tue, 23 Jun 2015 16:34:49 +0200
Subject: Also pass EntityManager to System::configure().

Old configure() left for compatibility.

Fixes #104.
---
 entityx/System.cc           | 2 +-
 entityx/System.h            | 7 +++++++
 entityx/deps/Dependencies.h | 4 ++--
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/entityx/System.cc b/entityx/System.cc
index 009ac9c..8e4b5a9 100644
--- a/entityx/System.cc
+++ b/entityx/System.cc
@@ -26,7 +26,7 @@ void SystemManager::update_all(TimeDelta dt) {
 
 void SystemManager::configure() {
   for (auto &pair : systems_) {
-    pair.second->configure(event_manager_);
+    pair.second->configure(entity_manager_, event_manager_);
   }
   initialized_ = true;
 }
diff --git a/entityx/System.h b/entityx/System.h
index 7c90ef5..b39f2ca 100644
--- a/entityx/System.h
+++ b/entityx/System.h
@@ -41,6 +41,13 @@ class BaseSystem : entityx::help::NonCopyable {
    *
    * Typically used to set up event handlers.
    */
+  virtual void configure(EntityManager &entities, EventManager &events) {
+    configure(events);
+  }
+
+  /**
+   * Legacy configure(). Called by default implementation of configure(EntityManager&, EventManager&).
+   */
   virtual void configure(EventManager &events) {}
 
   /**
diff --git a/entityx/deps/Dependencies.h b/entityx/deps/Dependencies.h
index b1fb93c..88c9f79 100644
--- a/entityx/deps/Dependencies.h
+++ b/entityx/deps/Dependencies.h
@@ -31,11 +31,11 @@ public:
     assign<Deps...>(event.entity);
   }
 
-  virtual void configure(EventManager &events) override {
+  void configure(EventManager &events) override {
     events.subscribe<ComponentAddedEvent<C>>(*this);
   }
 
-  virtual void update(EntityManager &entities, EventManager &events, TimeDelta dt) override {}
+  void update(EntityManager &entities, EventManager &events, TimeDelta dt) override {}
 
 private:
   template <typename D>
-- 
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