diff -r 302971e8599b -r 9dd76cbd6c90 src/window.c
--- a/src/window.c	Wed Nov 01 20:09:49 2023 +0100
+++ b/src/window.c	Wed Nov 01 21:00:33 2023 +0100
@@ -26,6 +26,8 @@
  */
 
 #include "ascension/window.h"
+#include "ascension/context.h"
+#include "ascension/error.h"
 
 #include <cx/linked_list.h>
 #include <cx/printf.h>
@@ -50,11 +52,10 @@
 
 
 static void asc_event_window_resized(Uint32 id, Sint32 width, Sint32 height) {
-    CxIterator iter = cxListIterator(asc_context.windows);
-    cx_foreach(AscWindow*, w, iter) {
-        if (w->id == id) {
-            w->dimensions.width = width;
-            w->dimensions.height = height;
+    for (unsigned int i = 0 ; i < ASC_MAX_WINDOWS ; i++) {
+        if (asc_context.windows[i].id == id) {
+            asc_context.windows[i].dimensions.width = width;
+            asc_context.windows[i].dimensions.height = height;
             return;
         }
     }
@@ -87,9 +88,10 @@
     }
 
     // sync the windows
-    CxMutIterator windows = cxListMutIterator(asc_context.windows);
-    cx_foreach(AscWindow*, w, windows) {
-        asc_window_sync(w);
+    for (unsigned int i = 0 ; i < ASC_MAX_WINDOWS ; i++) {
+        if (asc_context.windows[i].id > 0) {
+            asc_window_sync(&asc_context.windows[i]);
+        }
     }
     return true;
 }
@@ -105,7 +107,18 @@
     settings->title = "Ascended Window";
 }
 
-void asc_window_initialize(AscWindow* window, AscWindowSettings const* settings) {
+AscWindow *asc_window_initialize(unsigned int index, AscWindowSettings const *settings) {
+    if (index >= ASC_MAX_WINDOWS) {
+        asc_error("Maximum number of windows exceeded.");
+        return NULL;
+    }
+    AscWindow *window = &asc_context.windows[index];
+    if (window->id > 0) {
+        asc_error("Cannot create window - slot already occupied.");
+        asc_dprintf("Tried to create window with index %u", index);
+        return NULL;
+    }
+
     Uint32 flags = SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN;
     flags |= settings->fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_RESIZABLE;
 
@@ -119,7 +132,7 @@
     );
     if (window->window == NULL) {
         asc_error(SDL_GetError());
-        return;
+        return NULL;
     }
 
     window->id = SDL_GetWindowID(window->window);
@@ -147,8 +160,7 @@
             glEnable(GL_DEBUG_OUTPUT);
             glDebugMessageCallback(asc_gl_debug_callback, NULL);
             asc_dprintf("Window %u initialized", window->id);
-            cxListAdd(asc_context.windows, window);
-            return;
+            return window;
         } else {
             asc_error(glewGetErrorString(err));
         }
@@ -164,8 +176,11 @@
     window->id = 0;
 }
 
-void asc_window_destroy_impl(AscWindow* window) {
-    // destory the GL context and the window
+void asc_window_destroy(AscWindow* window) {
+    // safeguard
+    if (window->id == 0) return;
+
+    // destroy the GL context and the window
     if (window->glctx != NULL) {
         SDL_GL_DeleteContext(window->glctx);
     }
@@ -178,19 +193,6 @@
     memset(window, 0, sizeof(AscWindow));
 }
 
-void asc_window_destroy(AscWindow* window) {
-    // find the window in the context and remove it
-    bool found = false;
-    CxMutIterator iter = cxListMutIterator(asc_context.windows);
-    cx_foreach(AscWindow*, w, iter) {
-        if (w == window) {
-            found = true;
-            cxIteratorFlagRemoval(iter);
-        }
-    }
-    if (!found) asc_window_destroy_impl(window);
-}
-
 void asc_window_sync(AscWindow const* window) {
     SDL_GL_MakeCurrent(window->window, window->glctx);
     SDL_GL_SwapWindow(window->window);