24 files changed, 68 insertions, 65 deletions
diff --git a/src/crepe/CMakeLists.txt b/src/crepe/CMakeLists.txt
index ef2584e..57c77be 100644
--- a/src/crepe/CMakeLists.txt
+++ b/src/crepe/CMakeLists.txt
@@ -9,15 +9,11 @@ target_sources(crepe PUBLIC
 	SDLApp.cpp
 	ComponentManager.cpp
 	Component.cpp
-	GameObject.cpp
-	Collider.cpp
-	Rigidbody.cpp
-	Sprite.cpp
 	ScriptSystem.cpp
 	PhysicsSystem.cpp
 	Transform.cpp
-	Force.cpp
 	CollisionSystem.cpp
+	Collider.cpp
 )
 
 target_sources(crepe PUBLIC FILE_SET HEADERS FILES
@@ -31,17 +27,12 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	ComponentManager.h
 	ComponentManager.hpp
 	Component.h
-	GameObject.h
-	GameObject.hpp
-	Collider.h
-	Rigidbody.h
-	Sprite.h
 	System.h
 	ScriptSystem.h
 	PhysicsSystem.h
 	Transform.h
-	Force.h
 	CollisionSystem.h
+	Collider.h
 )
 
 add_subdirectory(api)
diff --git a/src/crepe/Component.h b/src/crepe/Component.h
index 8a42a45..9483dad 100644
--- a/src/crepe/Component.h
+++ b/src/crepe/Component.h
@@ -5,16 +5,12 @@ namespace crepe {
 
 class Component {
 protected:
-	Component() = default;
+	Component(uint32_t id);
 
 public:
-	Component(uint32_t id);
-	virtual ~Component() {}
-	// TODO: shouldn't this constructor be deleted because this class will never
-	// directly be instantiated?
-	//changed so it sets the id (jaro)
 	uint32_t gameObjectId;
 	bool active;
+	virtual ~Component() = default;
 };
 
 } // namespace crepe
diff --git a/src/crepe/GameObject.cpp b/src/crepe/GameObject.cpp
deleted file mode 100644
index 36eb886..0000000
--- a/src/crepe/GameObject.cpp
+++ /dev/null
@@ -1,12 +0,0 @@
-#include "GameObject.h"
-#include "Transform.h"
-
-using namespace crepe;
-
-GameObject::GameObject(uint32_t id, std::string name, std::string tag,
-					   int layer)
-	: id(id), name(name), tag(tag), active(true), layer(layer) 
-{
-	Position pos = {0,0};
-	this->add_component<Transform>(pos, 0, 0);
-}
diff --git a/src/crepe/PhysicsSystem.cpp b/src/crepe/PhysicsSystem.cpp
index 7d16044..e0bbc5b 100644
--- a/src/crepe/PhysicsSystem.cpp
+++ b/src/crepe/PhysicsSystem.cpp
@@ -1,11 +1,12 @@
 #include "PhysicsSystem.h"
 #include "ComponentManager.h"
-#include "Rigidbody.h"
+#include "api/Rigidbody.h"
 #include "Transform.h"
-#include "Force.h"
+#include "api/Force.h"
 #include <iostream>
 
 using namespace crepe;
+using namespace crepe::api;
 
 PhysicsSystem::PhysicsSystem() {
 
diff --git a/src/crepe/api/AudioSource.cpp b/src/crepe/api/AudioSource.cpp
index b512d27..bb067dc 100644
--- a/src/crepe/api/AudioSource.cpp
+++ b/src/crepe/api/AudioSource.cpp
@@ -1,7 +1,8 @@
+#include <memory>
+
 #include "AudioSource.h"
 
 #include "../Sound.h"
-#include <memory>
 
 using namespace crepe::api;
 
diff --git a/src/crepe/api/AudioSource.h b/src/crepe/api/AudioSource.h
index 2d26cda..7980212 100644
--- a/src/crepe/api/AudioSource.h
+++ b/src/crepe/api/AudioSource.h
@@ -2,8 +2,8 @@
 
 #include <memory>
 
-#include "Asset.h"
-#include "Component.h"
+#include "../Asset.h"
+#include "../Component.h"
 
 namespace crepe {
 class Sound;
diff --git a/src/crepe/api/BehaviorScript.cpp b/src/crepe/api/BehaviorScript.cpp
index 063d225..74788ec 100644
--- a/src/crepe/api/BehaviorScript.cpp
+++ b/src/crepe/api/BehaviorScript.cpp
@@ -1,7 +1,6 @@
 #include "../util/log.h"
 
 #include "BehaviorScript.h"
-#include "Script.h"
 
 using namespace crepe::api;
 
diff --git a/src/crepe/api/BehaviorScript.h b/src/crepe/api/BehaviorScript.h
index 6ce6798..25d3cc5 100644
--- a/src/crepe/api/BehaviorScript.h
+++ b/src/crepe/api/BehaviorScript.h
@@ -2,7 +2,7 @@
 
 #include <memory>
 
-#include "Component.h"
+#include "../Component.h"
 #include "Script.h"
 
 namespace crepe {
diff --git a/src/crepe/api/CMakeLists.txt b/src/crepe/api/CMakeLists.txt
index 6b337be..c97423d 100644
--- a/src/crepe/api/CMakeLists.txt
+++ b/src/crepe/api/CMakeLists.txt
@@ -2,11 +2,20 @@ target_sources(crepe PUBLIC
 	# AudioSource.cpp
 	BehaviorScript.cpp
 	Script.cpp
+	GameObject.cpp
+	Rigidbody.cpp
+	Sprite.cpp
+	Force.cpp
 )
 
 target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	# AudioSource.h
 	BehaviorScript.h
 	Script.h
+	GameObject.h
+	GameObject.hpp
+	Rigidbody.h
+	Sprite.h
+	Force.h
 )
 
diff --git a/src/crepe/CircleCollider.h b/src/crepe/api/CircleCollider.h
index 922477b..4a4883c 100644
--- a/src/crepe/CircleCollider.h
+++ b/src/crepe/api/CircleCollider.h
@@ -1,7 +1,7 @@
 #pragma once
-#include "Collider.h"
+#include "../Collider.h"
 
-namespace crepe {
+namespace crepe::api {
 
 class CircleCollider : public Collider {
 public:
diff --git a/src/crepe/Force.cpp b/src/crepe/api/Force.cpp
index b314f49..1b4c81a 100644
--- a/src/crepe/Force.cpp
+++ b/src/crepe/api/Force.cpp
@@ -1,7 +1,7 @@
 #include "Force.h"
 #include <cmath>
 
-namespace crepe {
+namespace crepe::api {
 
 Force::Force(uint32_t gameObjectId, uint32_t forceMagnitude, uint32_t direction): Component(gameObjectId)
 { 
@@ -11,4 +11,4 @@ Force::Force(uint32_t gameObjectId, uint32_t forceMagnitude, uint32_t direction)
     force_y = static_cast<int32_t>(std::round(forceMagnitude * std::sin(radian_direction)));
 }
 
-} // namespace crepe
+} // namespace crepe::api
diff --git a/src/crepe/Force.h b/src/crepe/api/Force.h
index a121ec2..0b06da1 100644
--- a/src/crepe/Force.h
+++ b/src/crepe/api/Force.h
@@ -1,10 +1,10 @@
 #pragma once
 
-#include "Component.h"
+#include "../Component.h"
 #include <cstdint>
 #include <utility>
 
-namespace crepe {
+namespace crepe::api {
 
 class Force : public Component {
 public:
diff --git a/src/crepe/api/GameObject.cpp b/src/crepe/api/GameObject.cpp
new file mode 100644
index 0000000..b167187
--- /dev/null
+++ b/src/crepe/api/GameObject.cpp
@@ -0,0 +1,7 @@
+#include "GameObject.h"
+
+using namespace crepe::api;
+using namespace std;
+
+GameObject::GameObject(uint32_t id, string name, string tag, int layer)
+	: id(id), name(name), tag(tag), active(true), layer(layer) {}
diff --git a/src/crepe/GameObject.h b/src/crepe/api/GameObject.h
index b5d6399..57508c5 100644
--- a/src/crepe/GameObject.h
+++ b/src/crepe/api/GameObject.h
@@ -3,7 +3,7 @@
 #include <cstdint>
 #include <string>
 
-namespace crepe {
+namespace crepe::api {
 
 class GameObject {
 public:
@@ -19,6 +19,6 @@ public:
 	int layer;
 };
 
-} // namespace crepe
+} // namespace crepe::api
 
 #include "GameObject.hpp"
diff --git a/src/crepe/GameObject.hpp b/src/crepe/api/GameObject.hpp
index 8cd1abe..8295ea3 100644
--- a/src/crepe/GameObject.hpp
+++ b/src/crepe/api/GameObject.hpp
@@ -1,10 +1,10 @@
 #pragma once
 
-#include "GameObject.h"
+#include "../ComponentManager.h"
 
-#include "ComponentManager.h"
+#include "GameObject.h"
 
-namespace crepe {
+namespace crepe::api {
 
 template <typename T, typename... Args>
 T & GameObject::add_component(Args &&... args) {
@@ -12,4 +12,4 @@ T & GameObject::add_component(Args &&... args) {
 	return mgr.add_component<T>(id, std::forward<Args>(args)...);
 }
 
-} // namespace crepe
+} // namespace crepe::api
diff --git a/src/crepe/Rigidbody.cpp b/src/crepe/api/Rigidbody.cpp
index a610e55..30a2cff 100644
--- a/src/crepe/Rigidbody.cpp
+++ b/src/crepe/api/Rigidbody.cpp
@@ -1,6 +1,6 @@
 #include "Rigidbody.h"
 
-using namespace crepe;
+using namespace crepe::api;
 
 Rigidbody::Rigidbody(uint32_t gameObjectId,int mass, int gravityScale, BodyType bodyType)
 	: Component(gameObjectId), mass(mass), gravity_scale(gravityScale), body_type(bodyType) {}
diff --git a/src/crepe/Rigidbody.h b/src/crepe/api/Rigidbody.h
index a03346f..b7a0064 100644
--- a/src/crepe/Rigidbody.h
+++ b/src/crepe/api/Rigidbody.h
@@ -1,9 +1,9 @@
 #pragma once
 
-#include "Component.h"
+#include "../Component.h"
 #include <cstdint>
 
-namespace crepe {
+namespace crepe::api {
 
 enum class BodyType {
     Static,     // Does not move (e.g. walls, ground ...)
@@ -21,4 +21,4 @@ public:
 	BodyType body_type;
 };
 
-} // namespace crepe
+} // namespace crepe::api
diff --git a/src/crepe/Sprite.cpp b/src/crepe/api/Sprite.cpp
index 7f5bca7..4eda466 100644
--- a/src/crepe/Sprite.cpp
+++ b/src/crepe/api/Sprite.cpp
@@ -2,7 +2,7 @@
 
 #include "Sprite.h"
 
-using namespace crepe;
+using namespace crepe::api;
 using namespace std;
 
 Sprite::Sprite(uint32_t gameObjectId, string path) : Component(gameObjectId), path(path) {}
diff --git a/src/crepe/Sprite.h b/src/crepe/api/Sprite.h
index 8c517ed..c06e76c 100644
--- a/src/crepe/Sprite.h
+++ b/src/crepe/api/Sprite.h
@@ -2,9 +2,9 @@
 
 #include <string>
 
-#include "Component.h"
+#include "../Component.h"
 
-namespace crepe {
+namespace crepe::api {
 
 class Sprite : public Component {
 public:
@@ -13,4 +13,4 @@ public:
 	std::string path;
 };
 
-} // namespace crepe
+} // namespace crepe::api
diff --git a/src/example/CMakeLists.txt b/src/example/CMakeLists.txt
index 256d87e..ceb8f9d 100644
--- a/src/example/CMakeLists.txt
+++ b/src/example/CMakeLists.txt
@@ -1,3 +1,6 @@
+# all examples
+add_custom_target(examples)
+
 # add_example(target_name [SOURCES...])
 function(add_example target_name)
 	# if SOURCES is not specified
@@ -10,6 +13,7 @@ function(add_example target_name)
 
 	add_executable(${target_name} EXCLUDE_FROM_ALL ${sources})
 	target_link_libraries(${target_name} PUBLIC crepe)
+	add_dependencies(examples ${target_name})
 endfunction()
 
 add_example(audio_internal)
diff --git a/src/example/Physics.cpp b/src/example/Physics.cpp
index 9ad6da0..6499fb0 100644
--- a/src/example/Physics.cpp
+++ b/src/example/Physics.cpp
@@ -2,13 +2,14 @@
 #include <thread>
 #include <chrono>
 #include "Transform.h"
-#include "Rigidbody.h"
-#include "Force.h"
+#include <crepe/api/Rigidbody.h>
+#include <crepe/api/Force.h>
 #include "PhysicsSystem.h"
 #include <crepe/Component.h>
 #include <crepe/ComponentManager.h>
-#include <crepe/GameObject.h>
+#include <crepe/api/GameObject.h>
 
+using namespace crepe::api;
 using namespace crepe;
 using namespace std;
 
@@ -18,6 +19,8 @@ int main(int argc, char* argv[]) {
 	GameObject * game_object[2];
 	game_object[1] = new GameObject(2, "Name", "Tag", 0); // not found not used
 	game_object[0] = new GameObject(5, "Name", "Tag", 0);
+	Position position = {0, 0};
+	game_object[0]->add_component<Transform>(position,0,0);
 	game_object[0]->add_component<Rigidbody>(1, 1 , BodyType::Dynamic);
 	game_object[0]->add_component<Force>(1 , 0);
 	physicsSystem.update(); 
diff --git a/src/example/components_internal.cpp b/src/example/components_internal.cpp
index 3ba5b5a..ae6c765 100644
--- a/src/example/components_internal.cpp
+++ b/src/example/components_internal.cpp
@@ -6,14 +6,17 @@
 #include <cassert>
 #include <chrono>
 
-#include <crepe/Collider.h>
 #include <crepe/Component.h>
 #include <crepe/ComponentManager.h>
-#include <crepe/GameObject.h>
-#include <crepe/Rigidbody.h>
-#include <crepe/Sprite.h>
+
+#include <crepe/api/Collider.h>
+#include <crepe/api/GameObject.h>
+#include <crepe/api/Rigidbody.h>
+#include <crepe/api/Sprite.h>
+
 #include <crepe/util/log.h>
 
+using namespace crepe::api;
 using namespace crepe;
 using namespace std;
 
diff --git a/src/example/script.cpp b/src/example/script.cpp
index cc585db..6e5563c 100644
--- a/src/example/script.cpp
+++ b/src/example/script.cpp
@@ -4,11 +4,11 @@
  */
 
 #include <crepe/ComponentManager.h>
-#include <crepe/GameObject.h>
 #include <crepe/ScriptSystem.h>
 #include <crepe/util/log.h>
 
 #include <crepe/api/BehaviorScript.h>
+#include <crepe/api/GameObject.h>
 #include <crepe/api/Script.h>
 
 using namespace crepe;
diff --git a/src/readme.md b/src/readme.md
index a4a71e7..a8ffc51 100644
--- a/src/readme.md
+++ b/src/readme.md
@@ -18,7 +18,8 @@ running the build command:
 $ ninja -C build test_main
 ```
 
-Each source file in the example/ folder corresponds to a CMake target as well:
+Each source file in the example/ folder corresponds to a CMake target as well
+(all examples can be built at once by specifying the `examples` target):
 
 ```
 $ ninja -C build audio_internal components_internal