From 1059de9c548e6dd8ab13926464cbb4036df1da4c Mon Sep 17 00:00:00 2001
From: Christian Semmler <mail@csemmler.com>
Date: Wed, 21 May 2025 15:59:35 -0700
Subject: [PATCH] Add message box errors for missing files

---
 LEGO1/lego/legoomni/src/entity/legoworldpresenter.cpp |  7 +++++++
 LEGO1/lego/sources/misc/legostorage.cpp               |  9 +++++++++
 LEGO1/omni/src/stream/mxio.cpp                        | 10 ++++++++++
 3 files changed, 26 insertions(+)

diff --git a/LEGO1/lego/legoomni/src/entity/legoworldpresenter.cpp b/LEGO1/lego/legoomni/src/entity/legoworldpresenter.cpp
index 2145b191..045052bd 100644
--- a/LEGO1/lego/legoomni/src/entity/legoworldpresenter.cpp
+++ b/LEGO1/lego/legoomni/src/entity/legoworldpresenter.cpp
@@ -27,6 +27,7 @@
 #include "mxstl/stlcompat.h"
 #include "mxutilities.h"
 
+#include <SDL3/SDL_messagebox.h>
 #include <SDL3/SDL_stdinc.h>
 #include <stdio.h>
 
@@ -187,6 +188,12 @@ MxResult LegoWorldPresenter::LoadWorld(char* p_worldName, LegoWorld* p_world)
 		MxString::MapPathToFilesystem(wdbPath);
 
 		if ((wdbFile = SDL_IOFromFile(wdbPath, "rb")) == NULL) {
+			SDL_ShowSimpleMessageBox(
+				SDL_MESSAGEBOX_ERROR,
+				"LEGO® Island Error",
+				"\"LEGO® Island\" failed to load world.wdb.\nPlease make sure this file is available on HD/CD.",
+				NULL
+			);
 			return FAILURE;
 		}
 	}
diff --git a/LEGO1/lego/sources/misc/legostorage.cpp b/LEGO1/lego/sources/misc/legostorage.cpp
index 6004977c..3ddcbf0c 100644
--- a/LEGO1/lego/sources/misc/legostorage.cpp
+++ b/LEGO1/lego/sources/misc/legostorage.cpp
@@ -2,6 +2,7 @@
 
 #include "decomp.h"
 
+#include <SDL3/SDL_messagebox.h>
 #include <memory.h>
 #include <string.h>
 
@@ -127,6 +128,14 @@ LegoResult LegoFile::Open(const char* p_name, LegoU32 p_mode)
 	path.MapPathToFilesystem();
 
 	if (!(m_file = SDL_IOFromFile(path.GetData(), mode))) {
+		char buffer[256];
+		SDL_snprintf(
+			buffer,
+			sizeof(buffer),
+			"\"LEGO® Island\" failed to load %s.\nPlease make sure this file is available on HD/CD.",
+			path.GetData()
+		);
+		SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "LEGO® Island Error", buffer, NULL);
 		return FAILURE;
 	}
 	return SUCCESS;
diff --git a/LEGO1/omni/src/stream/mxio.cpp b/LEGO1/omni/src/stream/mxio.cpp
index 87cdaf8b..9227dc06 100644
--- a/LEGO1/omni/src/stream/mxio.cpp
+++ b/LEGO1/omni/src/stream/mxio.cpp
@@ -3,6 +3,7 @@
 #include "decomp.h"
 #include "mxstring.h"
 
+#include <SDL3/SDL_messagebox.h>
 #include <assert.h>
 #include <limits.h>
 
@@ -72,6 +73,15 @@ MxU16 MXIOINFO::Open(const char* p_filename, MxULong p_flags)
 		}
 	}
 	else {
+		char buffer[256];
+		SDL_snprintf(
+			buffer,
+			sizeof(buffer),
+			"\"LEGO® Island\" failed to load %s.\nPlease make sure this file is available on HD/CD.",
+			path.GetData()
+		);
+		SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "LEGO® Island Error", buffer, NULL);
+
 		result = MMIOERR_CANNOTOPEN;
 	}