Basic window

.envrc

@@ -0,0 +1 @@
+use nix

main.cc

@@ -0,0 +1,39 @@
+#include <GL/glew.h>
+#include <GLFW/glfw3.h>
+
+#define X 16
+#define Y 16
+#define GRID_SIZE X*Y
+
+#define STR_EXPAND(tok) #tok
+#define STR(tok) STR_EXPAND(tok)
+
+int main() {
+  if (!glfwInit())
+    return -1;
+
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
+  glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+  glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE);
+
+  GLFWwindow *w = glfwCreateWindow(800, 800, "game of life", NULL, NULL);
+  if (!w)
+    return -2;
+
+  glfwMakeContextCurrent(w);
+
+  if (glewInit() != GLEW_OK)
+    return -3;
+
+  glfwShowWindow(w);
+  glViewport(0, 0, 800, 800);
+
+  while (!glfwWindowShouldClose(w)) {
+    glfwPollEvents();
+    glClear(GL_COLOR_BUFFER_BIT);
+    glfwSwapBuffers(w);
+  }
+
+  glfwTerminate();
+  return 0;
+}

shell.nix

@@ -0,0 +1,16 @@
+{pkgs ? import <nixpkgs> {}}:
+with pkgs;
+  mkShell rec {
+    packages = [gdb clang-tools];
+    nativeBuildInputs = [
+      pkg-config
+      gcc
+      gnumake
+    ];
+    buildInputs = [
+      glfw3
+      glm
+      glew
+    ];
+    LD_LIBRARY_PATH = lib.makeLibraryPath buildInputs;
+  }