diff --git a/src/main.cpp b/src/main.cpp
index 0a8910a..36ff647 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -19,11 +19,13 @@
 
 static GLFWwindow* window;
 static float width, height;
+static glm::mat4 projection_t;
 
 void framebuffer_size_callback(GLFWwindow* window, int w, int h) {
     width = w;
     height = h;
     glViewport(0, 0, width, height);
+    projection_t = glm::infinitePerspective(glm::radians(45.0f), (float)width / (float)height, 0.1f);
 }
 
 void process_input() {
@@ -48,7 +50,7 @@ void* process_cin(void* args) {
     while (true) {
         std::getline(std::cin, line);
         Array<char*> words = split_str(line.c_str());
-        assert(words.len == 4);
+        if (!words.len == 4) return NULL;
         printf("Received: %s, %s, %s, %s\n", words[0], words[1], words[2], words[3]); // echo for debugging
         float x = atof(words[1]);
         float y = atof(words[2]);
@@ -194,7 +196,7 @@ int main() {
     glDisable(GL_CULL_FACE);
     glEnable(GL_DEPTH_TEST);
 
-    glm::mat4 projection_t = glm::infinitePerspective(glm::radians(45.0f), (float)width / (float)height, 0.1f);
+    projection_t = glm::infinitePerspective(glm::radians(45.0f), (float)width / (float)height, 0.1f);
     pthread_t thread_id;
     pthread_create(&thread_id, NULL, process_cin, NULL);