From 55c8a14a7e2b2dadf0def3e09f970818164366f5 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Thu, 18 Jun 2015 12:14:05 -0400
Subject: Now displaying player character

---
 src/entity_manager.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/entity_manager.cpp

(limited to 'src/entity_manager.cpp')

diff --git a/src/entity_manager.cpp b/src/entity_manager.cpp
new file mode 100644
index 0000000..4bdfe8a
--- /dev/null
+++ b/src/entity_manager.cpp
@@ -0,0 +1,38 @@
+#ifndef ENTITY_MANAGER_CPP_42D78C22
+#define ENTITY_MANAGER_CPP_42D78C22
+
+#include "entity_manager.h"
+
+template <>
+std::set<int> EntityManager::getEntitiesWithComponents<>(std::set<std::type_index>& componentTypes)
+{
+  if (cachedComponents.count(componentTypes) == 1)
+  {
+    return cachedComponents[componentTypes];
+  }
+  
+  std::set<int>& cache = cachedComponents[componentTypes];
+  for (auto& entity : entities)
+  {
+    EntityData& data = entity.second;
+    bool cacheEntity = true;
+    
+    for (auto& componentType : componentTypes)
+    {
+      if (data.components.count(componentType) == 0)
+      {
+        cacheEntity = false;
+        break;
+      }
+    }
+    
+    if (cacheEntity)
+    {
+      cache.insert(entity.first);
+    }
+  }
+  
+  return cache;
+}
+
+#endif /* end of include guard: ENTITY_MANAGER_CPP_42D78C22 */
-- 
cgit 1.4.1