Made a homemade ECS

4 files changed, 59 insertions, 1 deletions

diff --git a/mwe/ecs-homemade/src/ComponentManager.cpp b/mwe/ecs-homemade/src/ComponentManager.cpp
new file mode 100644
index 0000000..287da38
--- /dev/null
+++ b/mwe/ecs-homemade/src/ComponentManager.cpp
@@ -0,0 +1,9 @@
+#include "ComponentManager.h"
+
+ComponentManager ComponentManager::mInstance;
+
+ComponentManager& ComponentManager::GetInstance() {
+	return mInstance;
+}
+
+ComponentManager::ComponentManager() {}
diff --git a/mwe/ecs-homemade/src/Components.cpp b/mwe/ecs-homemade/src/Components.cpp
new file mode 100644
index 0000000..3aece4b
--- /dev/null
+++ b/mwe/ecs-homemade/src/Components.cpp
@@ -0,0 +1,10 @@
+#include "Components.h"
+#include <iostream>
+
+Component::Component() : mActive(true) {}
+
+void Sprite::Render() {
+	std::cout << "Rendering sprite" << std::endl;
+}
+
+Rigidbody::Rigidbody(int mass, int gravityScale, int bodyType) : mMass(mass), mGravityScale(gravityScale), mBodyType(bodyType) {}
diff --git a/mwe/ecs-homemade/src/GameObjectMax.cpp b/mwe/ecs-homemade/src/GameObjectMax.cpp
new file mode 100644
index 0000000..62c41de
--- /dev/null
+++ b/mwe/ecs-homemade/src/GameObjectMax.cpp
@@ -0,0 +1,5 @@
+#include "GameObjectMax.h"
+
+#include "ComponentManager.h"
+
+GameObject::GameObject(std::uint32_t id, std::string name, std::string tag, int layer) : mId(id), mName(name), mTag(tag), mActive(true), mLayer(layer) {}
diff --git a/mwe/ecs-homemade/src/main.cpp b/mwe/ecs-homemade/src/main.cpp
index f8b829c..3dd082f 100644
--- a/mwe/ecs-homemade/src/main.cpp
+++ b/mwe/ecs-homemade/src/main.cpp
@@ -1,5 +1,39 @@
 #include <iostream>
+#include <vector>
+#include <cstdint>
+
+#include "ComponentManager.h"
+#include "GameObjectMax.h"
+#include "Components.h"
 
 int main() {
-	std::cout << "Hello, world!" << std::endl;
+	GameObject gameObect0(0, "Name: 0", "Tag: 0", 0);	//Entity 0
+	GameObject gameObect1(1, "Name: 1", "Tag: 1", 1);	//Entity 1
+
+	Sprite sprite0;
+	Rigidbody rigidbody0(1, 2, 3);
+	gameObect0.AddComponent<Sprite>(&sprite0);			//Add a sprite to entity0
+	gameObect0.AddComponent<Rigidbody>(&rigidbody0);	//Also add a rigidbody to entity0
+
+	Rigidbody rigidbody1(4, 5, 6);
+	gameObect1.AddComponent<Rigidbody>(&rigidbody1);	//Only add a rigidbody to entity1
+
+	//The entities are now initialized
+	//Now I will demonstrate some ways of retreiving/getting components
+
+	Rigidbody* rigidbodyOfEntity0 = ComponentManager::GetInstance().GetComponent<Rigidbody>(gameObect0.mId);			//Get the pointer to the Rigidbody component of entity 0
+	std::cout << "rigidbodyOfEntity0: " << rigidbodyOfEntity0->mMass << " " << rigidbodyOfEntity0->mGravityScale << " " << rigidbodyOfEntity0->mBodyType << std::endl;
+	std::cout << std::endl;
+
+	std::vector<std::uint32_t> rigidbodyIDs = ComponentManager::GetInstance().GetAllComponentIDs<Rigidbody>();			//Get all the IDs that have a Rigidbody component
+	for(std::uint32_t ID : rigidbodyIDs) {
+		std::cout << "Rigidbody ID: " << ID << std::endl;
+	}
+	std::cout << std::endl;
+
+	std::vector<Rigidbody*> rigidbodyComponents = ComponentManager::GetInstance().GetAllComponentPointer<Rigidbody>();	//Get all the pointers to the Rigidbody component(s)
+	for(Rigidbody* rigidbody : rigidbodyComponents) {
+		std::cout << "rigidbody: " << rigidbody->mMass << " " << rigidbody->mGravityScale << " " << rigidbody->mBodyType << std::endl;
+	}
+	std::cout << std::endl;
 }