fixed so that the demo player doesn't crash when the map isn't found

src/engine/client/ec_client.c

@@ -1902,9 +1902,10 @@ static void con_addfavorite(void *result, void *user_data)
 		client_serverbrowse_addfavorite(addr);
 }
 
-void client_demoplayer_play(const char *filename)
+const char *client_demoplayer_play(const char *filename)
 {
 	int crc;
+	const char *error;
 	client_disconnect();
 	netclient_error_string_reset(net);
 	
@@ -1912,14 +1913,20 @@ void client_demoplayer_play(const char *filename)
 	demorec_playback_registercallbacks(client_democallback_snapshot, client_democallback_message);
 	
 	if(demorec_playback_load(filename))
-		return;
+		return "error loading demo";
 	
 	/* load map */
 	crc = (demorec_playback_info()->header.crc[0]<<24)|
 		(demorec_playback_info()->header.crc[1]<<16)|
 		(demorec_playback_info()->header.crc[2]<<8)|
 		(demorec_playback_info()->header.crc[3]);
-	client_load_map_search(demorec_playback_info()->header.map, crc);
+	error = client_load_map_search(demorec_playback_info()->header.map, crc);
+	if(error)
+	{
+		client_disconnect_with_reason(error);	
+		return error;
+	}
+	
 	modc_connected();
 	
 	/* setup buffers */	
@@ -1943,6 +1950,8 @@ void client_demoplayer_play(const char *filename)
 	
 	demorec_playback_play();
 	modc_entergame();
+	
+	return 0;
 }
 
 static void con_play(void *result, void *user_data)

src/engine/e_if_client.h

@@ -567,7 +567,7 @@ typedef struct DEMOPLAYBACK_INFO
 	float speed;
 } DEMOPLAYBACK_INFO;
 
-void client_demoplayer_play(const char *filename);
+const char *client_demoplayer_play(const char *filename);
 const DEMOPLAYBACK_INFO *client_demoplayer_getinfo();
 void client_demoplayer_setpos(float percent);
 void client_demoplayer_setpause(int paused);

src/game/client/components/menus.cpp

@@ -666,6 +666,15 @@ void MENUS::on_init()
 	config.cl_show_welcome = 0;
 }
 
+void MENUS::popup_message(const char *topic, const char *body, const char *button)
+{
+	str_copy(message_topic, topic, sizeof(message_topic));
+	str_copy(message_body, body, sizeof(message_body));
+	str_copy(message_button, button, sizeof(message_button));
+	popup = POPUP_MESSAGE;
+}
+
+
 int MENUS::render()
 {
     RECT screen = *ui_screen();
@@ -749,7 +758,13 @@ int MENUS::render()
 		const char *button_text = "";
 		int extra_align = 0;
 		
-		if(popup == POPUP_CONNECTING)
+		if(popup == POPUP_MESSAGE)
+		{
+			title = message_topic;
+			extra_text = message_body;
+			button_text = message_button;
+		}
+		else if(popup == POPUP_CONNECTING)
 		{
 			title = localize("Connecting to");
 			extra_text = config.ui_server_address;  // TODO: query the client about the address

src/game/client/components/menus.hpp

@@ -68,6 +68,7 @@ class MENUS : public COMPONENT
 		POPUP_NONE=0,
 		POPUP_FIRST_LAUNCH,
 		POPUP_CONNECTING,
+		POPUP_MESSAGE,
 		POPUP_DISCONNECTED,
 		POPUP_PURE,
 		POPUP_PASSWORD,
@@ -95,6 +96,13 @@ class MENUS : public COMPONENT
 	vec2 mouse_pos;
 	
 	int64 last_input;
+	
+	//
+	char message_topic[512];
+	char message_body[512];
+	char message_button[512];
+	
+	void popup_message(const char *topic, const char *body, const char *button);
 
 	// TODO: this is a bit ugly but.. well.. yeah	
 	enum { MAX_INPUTEVENTS = 32 };

src/game/client/components/menus_demo.cpp

@@ -406,7 +406,11 @@ void MENUS::render_demolist(RECT main_view)
 	if(ui_do_button(&play_button, localize("Play"), 0, &play_rect, ui_draw_menu_button, 0))
 	{
 		if(selected_item >= 0 && selected_item < demos.size())
-			client_demoplayer_play(demos[selected_item].filename);
+		{
+			const char *error = client_demoplayer_play(demos[selected_item].filename);
+			if(error)
+				popup_message(localize("Error"), error, localize("Ok"));
+		}
 	}
 	
 }