From fb8b5089378b3fd994eb9770aebecb017b0e62c6 Mon Sep 17 00:00:00 2001
From: 4VRDriver <44267643+4VRDriver@users.noreply.github.com>
Date: Mon, 31 Aug 2020 14:09:54 +0200
Subject: [PATCH] First triangle

---
 .vscode/settings.json | 47 +++++++++++++++++++++++++++++-
 Controller.cpp        | 67 ++++++++++++++++++++++++++++++++++++++++++-
 Controller.h          | 15 +++++++++-
 3 files changed, 126 insertions(+), 3 deletions(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index 29fe99b..9029c4a 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,51 @@
 {
     "C_Cpp.default.configurationProvider": "ms-vscode.cmake-tools",
     "files.associations": {
-        "ostream": "cpp"
+        "ostream": "cpp",
+        "array": "cpp",
+        "atomic": "cpp",
+        "bit": "cpp",
+        "*.tcc": "cpp",
+        "cctype": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "compare": "cpp",
+        "concepts": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "deque": "cpp",
+        "unordered_map": "cpp",
+        "vector": "cpp",
+        "exception": "cpp",
+        "algorithm": "cpp",
+        "functional": "cpp",
+        "iterator": "cpp",
+        "memory": "cpp",
+        "memory_resource": "cpp",
+        "numeric": "cpp",
+        "optional": "cpp",
+        "random": "cpp",
+        "string": "cpp",
+        "string_view": "cpp",
+        "system_error": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "utility": "cpp",
+        "initializer_list": "cpp",
+        "iosfwd": "cpp",
+        "iostream": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "new": "cpp",
+        "ranges": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "cinttypes": "cpp",
+        "typeinfo": "cpp"
     }
 }
\ No newline at end of file
diff --git a/Controller.cpp b/Controller.cpp
index bda5e4a..a2a0c8b 100644
--- a/Controller.cpp
+++ b/Controller.cpp
@@ -1,5 +1,6 @@
 #include <stdlib.h>
 #include <iostream>
+#include <glad/glad.h>
 
 #ifdef __linux__
 #include <unistd.h>
@@ -30,7 +31,66 @@ Controller::~Controller() {
 }
 
 void Controller::run() {
-    glClearColor(0.341f, 0.678f, 0.408f, 1.0f);
+    glClearColor(0.241f, 0.578f, 0.308f, 1.0f);
+
+    unsigned int vertexShader;
+    vertexShader = glCreateShader(GL_VERTEX_SHADER);
+    glShaderSource(vertexShader, 1, &vertexShaderSource, NULL);
+    glCompileShader(vertexShader);
+
+    int  success;
+    char infoLog[512];
+    glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
+    if(!success) {
+        glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
+        std::cout << "ERROR::SHADER::VERTEX::COMPILATION_FAILED\n" << infoLog << std::endl;
+    }
+
+    unsigned int fragmentShader;
+    fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
+    glShaderSource(fragmentShader, 1, &fragmentShaderSource, NULL);
+    glCompileShader(fragmentShader);
+    glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
+    if(!success) {
+        glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
+        std::cout << "ERROR::SHADER::FRAGMENT::COMPILATION_FAILED\n" << infoLog << std::endl;
+    }
+
+    unsigned int shaderProgram;
+    shaderProgram = glCreateProgram();
+    glAttachShader(shaderProgram, vertexShader);
+    glAttachShader(shaderProgram, fragmentShader);
+    glLinkProgram(shaderProgram);
+    glGetProgramiv(shaderProgram, GL_LINK_STATUS, &success);
+    if(!success) {
+        glGetProgramInfoLog(shaderProgram, 512, NULL, infoLog);
+        std::cout << "ERROR::SHADER::PROGRAM::LINKING_FAILED\n" << infoLog << std::endl;
+    }
+    glDeleteShader(vertexShader);
+    glDeleteShader(fragmentShader);
+
+    unsigned int VBO, VAO;
+    glGenVertexArrays(1, &VAO);
+    glGenBuffers(1, &VBO);
+
+    glBindVertexArray(VAO);
+
+    float vertices[] = {
+        -0.5f, -0.5f, 0.0f,
+        0.5f, -0.5f, 0.0f,
+        0.0f,  0.5f, 0.0f
+    };
+
+    glBindBuffer(GL_ARRAY_BUFFER, VBO);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
+    glEnableVertexAttribArray(0);
+
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindVertexArray(0);
+
+
     // This is the game loop
     while(!glfwWindowShouldClose(gameWindow->getGLFWwindow())) {
         // Timing
@@ -41,6 +101,11 @@ void Controller::run() {
 
         // Render and buffer swap
         glClear(GL_COLOR_BUFFER_BIT);
+
+        glUseProgram(shaderProgram);
+        glBindVertexArray(VAO);
+        glDrawArrays(GL_TRIANGLES, 0, 3);
+
         glfwSwapBuffers(gameWindow->getGLFWwindow());
 
 
diff --git a/Controller.h b/Controller.h
index 7b4f4f8..fdc2ba0 100644
--- a/Controller.h
+++ b/Controller.h
@@ -24,6 +24,19 @@ private:
 
     const uint16_t MAX_FPS = 60;
 
-    double deltaTime; 
+    double deltaTime;
+
+    const char *vertexShaderSource = "#version 330 core\n"
+        "layout (location = 0) in vec3 aPos;\n"
+        "void main() {\n"
+        "   gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);\n"
+        "}\0";
+
+    
+    const char *fragmentShaderSource = "#version 330 core\n"
+        "out vec4 FragColor;\n"
+        "void main() {\n"
+        "    FragColor = vec4(1.0f, 0.5f, 0.2f, 1.0f);\n"
+        "}\0";
 
 };