From 5c61995d1ceb3141e22d722ce930d89a40f64455 Mon Sep 17 00:00:00 2001
From: k <markers711@gmail.com>
Date: Sat, 3 May 2025 16:50:20 -0400
Subject: [PATCH] Basic window

---
 .envrc    |  1 +
 main.cc   | 39 +++++++++++++++++++++++++++++++++++++++
 shell.nix | 16 ++++++++++++++++
 3 files changed, 56 insertions(+)
 create mode 100644 .envrc
 create mode 100644 main.cc
 create mode 100644 shell.nix

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..1d953f4
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use nix
diff --git a/main.cc b/main.cc
new file mode 100644
index 0000000..3158739
--- /dev/null
+++ b/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;
+}
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..04b81f4
--- /dev/null
+++ b/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;
+  }