From ba41413396ed16cb8d6a24ebe78edf7dec941a39 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <madebr@users.noreply.github.com>
Date: Fri, 3 Oct 2025 00:56:28 +0200
Subject: [PATCH] Original (beta) demo does not have high resolution data
 (#497)

---
 src/DETHRACE/pc-all/allsys.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/DETHRACE/pc-all/allsys.c b/src/DETHRACE/pc-all/allsys.c
index b4572939..2b9a83b2 100644
--- a/src/DETHRACE/pc-all/allsys.c
+++ b/src/DETHRACE/pc-all/allsys.c
@@ -843,6 +843,11 @@ int original_main(int pArgc, char** pArgv) {
 
     for (i = 1; i < pArgc; i++) {
         if (strcasecmp(pArgv[i], "-hires") == 0) {
+#ifdef DETHRACE_FIX_BUGS
+            if (!PDCheckDriveExists("DATA/64X48X8/HEADUP.TXT")) {
+                PDFatalError("No high resolution data (\"DATA/64X48X8\") is available. Run game without -hires.");
+            }
+#endif
             gGraf_spec_index = 1;
         } else if (strcasecmp(pArgv[i], "-yon") == 0 && i < pArgc - 1) {
             i++;