From f942405184c2d6067fb5303b58a225edf7e452b1 Mon Sep 17 00:00:00 2001
From: LaG1924 <12997935+LaG1924@users.noreply.github.com>
Date: Sat, 29 Jul 2017 19:55:16 +0500
Subject: 2017-07-29

---
 src/Render.cpp | 137 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 src/Render.cpp

(limited to 'src/Render.cpp')

diff --git a/src/Render.cpp b/src/Render.cpp
new file mode 100644
index 0000000..ebfbc20
--- /dev/null
+++ b/src/Render.cpp
@@ -0,0 +1,137 @@
+#include "Render.hpp"
+
+#include "Utility.hpp"
+#include "Shader.hpp"
+#include "AssetManager.hpp"
+#include "Event.hpp"
+
+Render::Render(unsigned int windowWidth, unsigned int windowHeight, std::string windowTitle) {
+	InitSfml(windowWidth, windowHeight, windowTitle);
+	glCheckError();
+	InitGlew();
+	glCheckError();
+	PrepareToRendering();
+	glCheckError();
+}
+
+Render::~Render() {
+	delete window;
+}
+
+void Render::InitSfml(unsigned int WinWidth, unsigned int WinHeight, std::string WinTitle) {
+	LOG(INFO) << "Creating window: " << WinWidth << "x" << WinHeight << " \"" << WinTitle << "\"";
+	sf::ContextSettings contextSetting;
+	contextSetting.majorVersion = 3;
+	contextSetting.minorVersion = 3;
+	contextSetting.attributeFlags = contextSetting.Core;
+	contextSetting.depthBits = 24;
+	window = new sf::Window(sf::VideoMode(WinWidth, WinHeight), WinTitle, sf::Style::Default, contextSetting);
+	glCheckError();
+	window->setPosition(sf::Vector2i(sf::VideoMode::getDesktopMode().width / 2 - window->getSize().x / 2,
+	                                 sf::VideoMode::getDesktopMode().height / 2 - window->getSize().y / 2));
+	SetMouseCapture(false);
+}
+
+void Render::InitGlew() {
+	LOG(INFO) << "Initializing GLEW";
+	glewExperimental = GL_TRUE;
+	GLenum glewStatus = glewInit();
+	glCheckError();
+	if (glewStatus != GLEW_OK) {
+		LOG(FATAL) << "Failed to initialize GLEW: " << glewGetErrorString(glewStatus);
+	}
+	glViewport(0, 0, window->getSize().x, window->getSize().y);
+	glEnable(GL_DEPTH_TEST);
+	glEnable(GL_CULL_FACE);
+	glCullFace(GL_BACK);
+	glFrontFace(GL_CCW);
+	//glEnable(GL_BLEND);
+	//glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	glCheckError();
+}
+
+void Render::PrepareToRendering() {
+	shader = new Shader("./shaders/face.vs", "./shaders/face.fs");
+	shader->Use();
+
+	//TextureAtlas texture
+	glActiveTexture(GL_TEXTURE0);
+	glBindTexture(GL_TEXTURE_2D, AssetManager::Instance().GetTextureAtlas());
+	glUniform1i(glGetUniformLocation(shader->Program, "textureAtlas"), 0);
+}
+
+void Render::RenderFrame() {
+	glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+
+	window->display();
+}
+
+void Render::HandleEvents() {
+	sf::Event event;
+	while (window->pollEvent(event)) {
+		switch (event.type) {
+			case sf::Event::Closed:
+				LOG(INFO) << "Received close event by window closing";
+				isRunning = false;
+				break;
+			case sf::Event::Resized:
+				glViewport(0, 0, window->getSize().x, window->getSize().y);
+				break;
+			case sf::Event::KeyPressed:
+				if (!window->hasFocus()) break;
+				switch (event.key.code) {
+					case sf::Keyboard::Escape:
+						LOG(INFO) << "Received close event by esc";
+						isRunning = false;
+						break;
+					case sf::Keyboard::T:
+						SetMouseCapture(!isMouseCaptured);
+						break;
+					default:
+						break;
+				}
+			default:
+				break;
+		}
+	}
+	if (window->hasFocus()) {
+		/*if (sf::Keyboard::isKeyPressed(sf::Keyboard::W)) gameState->HandleMovement(GameState::FORWARD, deltaTime);
+		if (sf::Keyboard::isKeyPressed(sf::Keyboard::S)) gameState->HandleMovement(GameState::BACKWARD, deltaTime);
+		if (sf::Keyboard::isKeyPressed(sf::Keyboard::A)) gameState->HandleMovement(GameState::LEFT, deltaTime);
+		if (sf::Keyboard::isKeyPressed(sf::Keyboard::D)) gameState->HandleMovement(GameState::RIGHT, deltaTime);
+		if (sf::Keyboard::isKeyPressed(sf::Keyboard::Space)) gameState->HandleMovement(GameState::JUMP, deltaTime);*/
+	}
+}
+
+void Render::HandleMouseCapture() {
+	sf::Vector2i mousePos = sf::Mouse::getPosition(*window);
+	sf::Vector2i center = sf::Vector2i(window->getSize().x / 2, window->getSize().y / 2);
+	sf::Mouse::setPosition(center, *window);
+	mouseXDelta = (mousePos - center).x, mouseYDelta = (center - mousePos).y;
+	const float Sensetivity = 0.7f;
+	//gameState->HandleRotation(mouseXDelta * Sensetivity, mouseYDelta * Sensetivity);
+}
+
+void Render::SetMouseCapture(bool IsCaptured) {
+	window->setMouseCursorVisible(!isMouseCaptured);
+	sf::Mouse::setPosition(sf::Vector2i(window->getSize().x / 2, window->getSize().y / 2), *window);
+	isMouseCaptured = IsCaptured;
+	window->setMouseCursorVisible(!IsCaptured);
+}
+
+void Render::ExecuteRenderLoop() {
+	using namespace std::chrono_literals;
+	LoopExecutionTimeController timer(16ms);
+	while (isRunning) {
+		HandleEvents();
+		if (isMouseCaptured) HandleMouseCapture();
+		glCheckError();
+
+		RenderFrame();
+		timer.Update();
+	}
+	EventData data = GlobalAppStateData{GlobalState::Exiting};
+	EventAgregator::PushEvent(EventType::GlobalAppState,data);
+}
-- 
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