From b12be852a82a0439fcad4da47854efa118527ac1 Mon Sep 17 00:00:00 2001
From: KerelOlivier <olivierboeren@live.nl>
Date: Sat, 16 Apr 2022 02:36:48 +0200
Subject: [PATCH] setup opengl window

---
 CMakeLists.txt | 12 +++++++++++-
 main.cpp       | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b09192..ee14a08 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,4 +3,14 @@ project(Voronoi_2)
 
 set(CMAKE_CXX_STANDARD 20)
 
-add_executable(Voronoi_2 main.cpp src/datastructures/Beachline.cpp src/datastructures/Beachline.h src/datastructures/DCEL.cpp src/datastructures/DCEL.h src/types/point.h src/types/event.h src/types/node.h src/utils/intersection.h src/utils/circle.h)
+find_package(glfw3 3.3 REQUIRED)
+
+
+add_executable(Voronoi_2 main.cpp src/datastructures/Beachline.cpp
+        src/datastructures/Beachline.h src/datastructures/DCEL.cpp
+        src/datastructures/DCEL.h src/types/point.h
+        src/types/event.h src/types/node.h
+        src/utils/intersection.h src/utils/circle.h glad.c)
+include_directories(./includes)
+
+target_link_libraries(Voronoi_2 glfw)
diff --git a/main.cpp b/main.cpp
index 0ab7f9b..7054659 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,6 +1,48 @@
 #include <iostream>
 
+#include <glad/glad.h>
+#include <GLFW/glfw3.h>
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height);
+
 int main() {
   std::cout << "Hello, World!" << std::endl;
+
+  glfwInit();
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+  glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+  glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
+
+  GLFWwindow* window = glfwCreateWindow(800, 600, "Voronoi", NULL, NULL);
+  if (window == NULL) {
+    std::cout << "Failed to create GLFW window" << std::endl;
+    glfwTerminate();
+    return -1;
+  }
+  glfwMakeContextCurrent(window);
+
+  if(gladLoadGLLoader((GLADloadproc)glfwGetProcAddress) == 0) {
+    std::cout << "Failed to initialize GLAD" << std::endl;
+    return -1;
+  }
+
+  glViewport(0, 0, 800, 600);
+
+  glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+
+  while(!glfwWindowShouldClose(window)) {
+    glfwPollEvents();
+    glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
+    glClear(GL_COLOR_BUFFER_BIT);
+
+    glfwSwapBuffers(window);
+  }
+
+
   return 0;
 }
+
+void framebuffer_size_callback(GLFWwindow* window, int width, int height) {
+  glViewport(0, 0, width, height);
+}