From 40d48773a393edadea97e501a4a47cd1746dadbe Mon Sep 17 00:00:00 2001
From: Yann Herklotz <ymherklotz@gmail.com>
Date: Fri, 15 Jun 2018 20:01:05 +0100
Subject: Adding components with test

---
 tests/component_test.cpp  | 13 +++++++++++++
 yage/entity/component.cpp |  6 ++++++
 yage/entity/component.h   | 17 +++++++++++++++++
 3 files changed, 36 insertions(+)
 create mode 100644 tests/component_test.cpp
 create mode 100644 yage/entity/component.cpp
 create mode 100644 yage/entity/component.h

diff --git a/tests/component_test.cpp b/tests/component_test.cpp
new file mode 100644
index 00000000..db42c287
--- /dev/null
+++ b/tests/component_test.cpp
@@ -0,0 +1,13 @@
+#include <yage/entity/entity.h>
+
+struct Position {
+    double x;
+    double y;
+
+    Position(double x_i, double y_i) : x(x_i), y(y_i) {}
+};
+
+int main() {
+    EntityManager em();
+    Entity player = em.createEntity();
+}
diff --git a/yage/entity/component.cpp b/yage/entity/component.cpp
new file mode 100644
index 00000000..83fe4424
--- /dev/null
+++ b/yage/entity/component.cpp
@@ -0,0 +1,6 @@
+#include "component.h"
+
+GroupId BaseComponent::getGroup() {
+    static GroupId group_id = group_id_counter_++;
+    return group_id;
+}
diff --git a/yage/entity/component.h b/yage/entity/component.h
new file mode 100644
index 00000000..84eb8b54
--- /dev/null
+++ b/yage/entity/component.h
@@ -0,0 +1,17 @@
+typedef unsigned int GroupId;
+
+class BaseComponent
+{
+protected:
+    GroupId getGroup();
+
+private:
+    friend class EntityManager;
+
+    static GroupId group_id_counter_;
+};
+
+template <typename T>
+class Component : public BaseComponent
+{
+};
-- 
cgit