从零开始的openGL--cs游戏（7）Scene类

Scene类似unity中的场景

#ifndef Scene_H
#define Scene_H
#include "Window.h"
#include <glm/glm.hpp>
#include <vector>
using namespace std;
class Transform;
class GameObject;
class CameraComponent;
struct Light
{
    
	glm::vec3 lightDir;
	glm::vec3 color;
	glm::vec3 ambient;
	float gloss;
};
class Scene
{
    
private:
	 unsigned int _uboPV;
	 unsigned int _uboBaseView;
	 unsigned int _uboBaseLight;
	Scene();
	static Scene* Init();
	friend void Window::InitScene();
public:
	 GameObject* player;
	 GameObject* cube;
	 Light light;
	static Scene* Instace;
	void Update();
	void LateUpdate();
	void Render();
    GameObject* RootGameObject;
	Transform* RootTransform;
	CameraComponent* MainCamera;
	vector<GameObject*> Gos;
};
#endif
#endif
-----------------
#include "Scene.h"
#include "Transform.h"
#include "GameObject.h"
#include "CameraComponent.h"
#include "EventCenter.h"
#include <glm/gtc/type_ptr.hpp>
#include "CubeMeshComponent.h"
#include "ResourceManager.h"
#include "MoveComponent.h"
#include "ModelComponent.h"
Scene* Scene::Instace = nullptr;

Scene::Scene()
{
    
	Scene::Instace = this;
	light.lightDir = glm::normalize(glm::vec3(0.0f, -1.0f, 1.5f));
	light.color = glm::vec3(1.0f);
	light.ambient = glm::vec3(0.0f,0.0f,0.0f);
	light.gloss = 5.0f;

	glGenBuffers(1, &_uboPV);
	glBindBuffer(GL_UNIFORM_BUFFER, _uboPV);
	glBufferData(GL_UNIFORM_BUFFER, 2 * sizeof(glm::mat4), NULL, GL_STATIC_DRAW);
	glBindBuffer(GL_UNIFORM_BUFFER, 0);
	glBindBufferRange(GL_UNIFORM_BUFFER, 0, _uboPV, 0, 2 * sizeof(glm::mat4));


	glGenBuffers(1, &_uboBaseLight);
	glBindBuffer(GL_UNIFORM_BUFFER, _uboBaseLight);
	glBufferData(GL_UNIFORM_BUFFER,sizeof(Light), &light, GL_STATIC_DRAW);
	glBindBuffer(GL_UNIFORM_BUFFER, 0);
	glBindBufferRange(GL_UNIFORM_BUFFER, 1, _uboBaseLight, 0, sizeof(Light));

	glGenBuffers(1, &_uboBaseView);
	glBindBuffer(GL_UNIFORM_BUFFER, _uboBaseView);
	glBufferData(GL_UNIFORM_BUFFER, sizeof(glm::vec3), NULL, GL_STATIC_DRAW);
	glBindBuffer(GL_UNIFORM_BUFFER, 0);
	glBindBufferRange(GL_UNIFORM_BUFFER, 2, _uboBaseView, 0, sizeof(glm::vec3));
	
	/*glBindBuffer(GL_UNIFORM_BUFFER, _uboPV); glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4), glm::value_ptr(glm::mat4(1.0f))); glBufferSubData(GL_UNIFORM_BUFFER, sizeof(glm::mat4), sizeof(glm::mat4), glm::value_ptr(glm::mat4(1.0f))); glBindBuffer(GL_UNIFORM_BUFFER, 0);*/
	RootGameObject = new GameObject("Root", nullptr);
	Transform::Root = new Transform(glm::vec3(0.0f), glm::vec3(0.0f), glm::vec3(1.0f), nullptr);
	Transform::Root->gameObject = RootGameObject;

	player = new GameObject("mySelf", Transform::Root);
	player->transform->localPosition = glm::vec3(0.0f, 0.5f, 0.0f);
	CameraComponent* camera = player->AddComponent<CameraComponent>();
	MoveComponent* move = player->AddComponent<MoveComponent>();
	camera->Active();
	cube = new GameObject("Cube", Transform::Root);
	cube->transform->localPosition = glm::vec3(0.0f, 0.0f, 10.0f);
	CubeMeshComponent* cubeMeshComponent = cube->AddComponent<CubeMeshComponent>();
	cubeMeshComponent->SetShader(ResourceManager::GetShaderP("CubeShader"));
	cubeMeshComponent->SetBound(100.0f, 0.2f, 100.0f);

	GameObject* c = new GameObject("swat", Transform::Root);
	c->transform->localPosition = glm::vec3(0.0f, 0.5f, 0.0f);
	c->transform->localScale = glm::vec3(0.1f, 0.1f, 0.1f);
	ModelComponent* model = c->AddComponent<ModelComponent>();
	model->LoadModel(ResourceManager::GetShaderP("ModelShader") ,"Model/swat/Swat.fbx" ,false);

	GameObject* d = new GameObject("zombie", Transform::Root);
	d->transform->localPosition = glm::vec3(10.0f, 0.5f, 0.0f);
	d->transform->localScale = glm::vec3(0.1f, 0.1f, 0.1f);
	ModelComponent* model_d = d->AddComponent<ModelComponent>();
	model_d->LoadModel(ResourceManager::GetShaderP("SkeletonModelShader"), "Model/zombieWalk/scene.gltf", false);
	model_d->InitAnimation();
}

Scene* Scene::Init()
{
    
	return new Scene();
}

void Scene::Update()
{
    
	Transform::Root->Updete();
}

void Scene::LateUpdate()
{
    
	if (Scene::MainCamera != nullptr)
	{
    
		glBindBuffer(GL_UNIFORM_BUFFER, _uboPV);
		glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4), glm::value_ptr(Scene::MainCamera->GetPerspective()));
		glBufferSubData(GL_UNIFORM_BUFFER, sizeof(glm::mat4), sizeof(glm::mat4), glm::value_ptr(Scene::MainCamera->GetViewMatrix()));
		glBindBuffer(GL_UNIFORM_BUFFER, 0);

		glBindBuffer(GL_UNIFORM_BUFFER, _uboBaseView);
		glBufferSubData(GL_UNIFORM_BUFFER, 0, sizeof(glm::vec3), glm::value_ptr(Scene::MainCamera->gameObject->transform->GetWordPosition()));
		glBindBuffer(GL_UNIFORM_BUFFER, 0);
	}
	Transform::Root->LateUpdate();
}

void Scene::Render()
{
    
	Transform::Root->Render();
}