From 1926a9eabb15ce3a0d0d5b0ef9f43a2e85195531 Mon Sep 17 00:00:00 2001
From: Stephen Seo <seo.disparate@gmail.com>
Date: Fri, 4 Mar 2016 22:59:43 +0900
Subject: [PATCH] Added EC/Meta/Morph.hpp

Started work on EC/Manager.hpp
---
 src/CMakeLists.txt    |  1 +
 src/EC/Manager.hpp    | 20 ++++++++++++++++++++
 src/EC/Meta/Meta.hpp  |  1 +
 src/EC/Meta/Morph.hpp | 28 ++++++++++++++++++++++++++++
 src/test/MetaTest.cpp | 31 +++++++++++++++++++++++++++++++
 5 files changed, 81 insertions(+)
 create mode 100644 src/EC/Manager.hpp
 create mode 100644 src/EC/Meta/Morph.hpp

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9b36e23..ba94a0b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -7,6 +7,7 @@ set(EntityComponentSystem_HEADERS
     EC/Meta/Contains.hpp
     EC/Meta/ContainsAll.hpp
     EC/Meta/IndexOf.hpp
+    EC/Meta/Morph.hpp
     EC/Meta/Meta.hpp
     EC/Bitset.hpp
     EC/EC.hpp)
diff --git a/src/EC/Manager.hpp b/src/EC/Manager.hpp
new file mode 100644
index 0000000..ed8c412
--- /dev/null
+++ b/src/EC/Manager.hpp
@@ -0,0 +1,20 @@
+
+#ifndef EC_MANAGER_HPP
+#define EC_MANAGER_HPP
+
+namespace EC
+{
+    template <typename ComponentsList, typename TagsList, typename Signatures>
+    struct Manager
+    {
+    public:
+        using Combined = EC::Meta::Combine<ComponentsList, TagsList>;
+
+    private:
+        using BitsetType = EC::Bitset<ComponentsList, TagsList>;
+
+    };
+}
+
+#endif
+
diff --git a/src/EC/Meta/Meta.hpp b/src/EC/Meta/Meta.hpp
index 1bb976d..0ac0ebd 100644
--- a/src/EC/Meta/Meta.hpp
+++ b/src/EC/Meta/Meta.hpp
@@ -4,4 +4,5 @@
 #include "Contains.hpp"
 #include "ContainsAll.hpp"
 #include "IndexOf.hpp"
+#include "Morph.hpp"
 
diff --git a/src/EC/Meta/Morph.hpp b/src/EC/Meta/Morph.hpp
new file mode 100644
index 0000000..b08655e
--- /dev/null
+++ b/src/EC/Meta/Morph.hpp
@@ -0,0 +1,28 @@
+
+#ifndef EC_META_MORPH_HPP
+#define EC_META_MORPH_HPP
+
+#include "TypeList.hpp"
+
+namespace EC
+{
+    namespace Meta
+    {
+        template <typename TypeA, typename TypeB>
+        struct MorphHelper
+        {
+        };
+
+        template <template <typename...> class TypeA, template <typename...> class TypeB, typename... TypesA, typename... TypesB>
+        struct MorphHelper<TypeA<TypesA...>, TypeB<TypesB...> >
+        {
+            using type = TypeB<TypesA...>;
+        };
+
+        template <typename TypeA, typename TypeB>
+        using Morph = typename MorphHelper<TypeA, TypeB>::type;
+    }
+}
+
+#endif
+
diff --git a/src/test/MetaTest.cpp b/src/test/MetaTest.cpp
index 84771c1..40ef63c 100644
--- a/src/test/MetaTest.cpp
+++ b/src/test/MetaTest.cpp
@@ -1,6 +1,7 @@
 
 #include <gtest/gtest.h>
 
+#include <tuple>
 #include <EC/Meta/Meta.hpp>
 #include <EC/EC.hpp>
 
@@ -125,3 +126,33 @@ TEST(Meta, Combine)
     EXPECT_EQ(combinedAllTemp, listAllTemp);
 }
 
+TEST(Meta, Morph)
+{
+    using TupleAll = std::tuple<C0, C1, C2, C3>;
+    using MorphedTuple = EC::Meta::Morph<TupleAll, EC::Meta::TypeList<> >;
+
+    int morphedTupleTemp = MorphedTuple::size;
+    int componentsTemp = ListComponentsAll::size;
+    EXPECT_EQ(morphedTupleTemp, componentsTemp);
+
+    morphedTupleTemp = EC::Meta::IndexOf<C0, MorphedTuple>::value;
+    componentsTemp = EC::Meta::IndexOf<C0, ListComponentsAll>::value;
+    EXPECT_EQ(morphedTupleTemp, componentsTemp);
+
+    morphedTupleTemp = EC::Meta::IndexOf<C1, MorphedTuple>::value;
+    componentsTemp = EC::Meta::IndexOf<C1, ListComponentsAll>::value;
+    EXPECT_EQ(morphedTupleTemp, componentsTemp);
+
+    morphedTupleTemp = EC::Meta::IndexOf<C2, MorphedTuple>::value;
+    componentsTemp = EC::Meta::IndexOf<C2, ListComponentsAll>::value;
+    EXPECT_EQ(morphedTupleTemp, componentsTemp);
+
+    morphedTupleTemp = EC::Meta::IndexOf<C3, MorphedTuple>::value;
+    componentsTemp = EC::Meta::IndexOf<C3, ListComponentsAll>::value;
+    EXPECT_EQ(morphedTupleTemp, componentsTemp);
+
+    using MorphedComponents = EC::Meta::Morph<ListComponentsAll, std::tuple<> >;
+    bool isSame = std::is_same<MorphedComponents, TupleAll>::value;
+    EXPECT_TRUE(isSame);
+}
+