Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packaging/macos/apphost.c

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+
+//
+// A custom apphost is required (instead of just invoking <arch-dir>/OpenRA directly)
+// because macOS will only properly associate dock icons and tooltips to windows that are
+// created by a process in the Contents/MacOS directory (not subdirectories).
+//
+// .NET 8 does not support universal binaries, and the apphost that is created when
+// publishing requires the runtime files to exist in the same directory as the launcher.
+//
+
+#include <dlfcn.h>
+#include <libgen.h>
+#include <stdio.h>
+
+typedef void* hostfxr_handle;
+struct hostfxr_initialize_parameters
+{
+	size_t size;
+	char *host_path;
+	char *dotnet_root;
+};
+
+typedef int32_t(*hostfxr_initialize_for_dotnet_command_line_fn)(
+	int argc,
+	char **argv,
+	struct hostfxr_initialize_parameters *parameters,
+	hostfxr_handle *host_context_handle);
+
+typedef int32_t(*hostfxr_run_app_fn)(const hostfxr_handle host_context_handle);
+typedef int32_t(*hostfxr_close_fn)(const hostfxr_handle host_context_handle);
+
+int main(int argc, char **argv)
+{
+	void *lib = dlopen(argv[1], RTLD_LAZY);
+	if (lib == NULL)
+	{
+		fprintf(stderr, "Failed to load %s: %s\n", argv[1], dlerror());
+		return 1;
+	}
+
+	hostfxr_initialize_for_dotnet_command_line_fn hostfxr_initialize_for_dotnet_command_line = (hostfxr_initialize_for_dotnet_command_line_fn)dlsym(lib, "hostfxr_initialize_for_dotnet_command_line");
+	if (!hostfxr_initialize_for_dotnet_command_line)
+	{
+		fprintf(stderr, "Could not load hostfxr_initialize_for_dotnet_command_line(): %s\n", dlerror());
+		return 1;
+	}
+
+	hostfxr_run_app_fn hostfxr_run_app = (hostfxr_run_app_fn)dlsym(lib, "hostfxr_run_app");
+	if (!hostfxr_run_app)
+	{
+		fprintf(stderr, "Could not load hostfxr_run_app(): %s\n", dlerror());
+		return 1;
+	}
+
+	hostfxr_close_fn hostfxr_close = (hostfxr_close_fn)dlsym(lib, "hostfxr_close");
+	if (!hostfxr_close)
+	{
+		fprintf(stderr, "Could not load hostfxr_close(): %s\n", dlerror());
+		return 1;
+	}
+
+	struct hostfxr_initialize_parameters params;
+	params.size = sizeof(params);
+	params.host_path = argv[0];
+	params.dotnet_root = dirname(argv[1]);
+
+	hostfxr_handle host_context_handle;
+	hostfxr_initialize_for_dotnet_command_line(
+	    argc - 2,
+	    &argv[2],
+	    &params,
+	    &host_context_handle);
+
+	hostfxr_run_app(host_context_handle);
+
+	return hostfxr_close(host_context_handle);
+}