Changed the game to use true fullscreen.

The fake "windowed fullscreen" is less invasive, but it sometimes
causes ugly artifacts and as a general rule isn't really all that
useful.

However, I also defined it in defs.h, so that it can be more easily
changed in the future.

src/defs.h

@@ -57,6 +57,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define PATH_MAX 4096
 #endif
 
+#define FULLSCREEN SDL_WINDOW_FULLSCREEN
+
 #define STARS_NUM 200
 
 // Object Flags

src/engine.cpp

@@ -250,7 +250,7 @@ void engine_setMode()
 	}
 
 	SDL_SetWindowIcon(window, gfx_loadImage("gfx/alienDevice.png"));
-	SDL_SetWindowFullscreen(window, engine.fullScreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
+	SDL_SetWindowFullscreen(window, engine.fullScreen ? FULLSCREEN : 0);
 
 	renderer = SDL_CreateRenderer(window, -1, 0);
 

src/intermission.cpp

@@ -1173,7 +1173,7 @@ static void intermission_doOptions(SDL_Surface *optionsSurface, int x, int y)
 		{
 			if (!engine.fullScreen)
 			{
-				SDL_SetWindowFullscreen(window, SDL_WINDOW_FULLSCREEN_DESKTOP);
+				SDL_SetWindowFullscreen(window, FULLSCREEN);
 				engine.fullScreen = 1;
 			}
 		}

src/mission.cpp

@@ -1070,16 +1070,16 @@ void mission_showStartScreen()
 			case MISN_ELLESH:
 			case MISN_MARS:
 			case MISN_VENUS:
-				screen_renderString("Phoebe Lexx will not be present", 160, screen->h / 2 + 115, FONT_WHITE);
+				screen_renderString("Phoebe Lexx will not be present", screen->w / 2 - 240, screen->h / 2 + 115, FONT_WHITE);
 				if (game.hasWingMate2)
-					screen_renderString("Ursula Lexx will not be present", 160, screen->h / 2 + 145, FONT_WHITE);
+					screen_renderString("Ursula Lexx will not be present", screen->w / 2 - 240, screen->h / 2 + 145, FONT_WHITE);
 				break;
 		}
 
 		if ((game.area == MISN_URUSOR) ||
 				(game.area == MISN_POSWIC) ||
 				(game.area == MISN_EARTH))
-			screen_renderString("Sid Wilson will join you on this mission", 160, screen->h / 2 + 175, FONT_WHITE);
+			screen_renderString("Sid Wilson will join you on this mission", screen->w / 2 - 240, screen->h / 2 + 175, FONT_WHITE);
 
 		renderer_update();
 	}

src/player.cpp

@@ -279,7 +279,7 @@ void player_getInput()
 		if (engine.keyState[KEY_FULLSCREEN])
 		{
 			engine.fullScreen = !engine.fullScreen;
-			SDL_SetWindowFullscreen(window, engine.fullScreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
+			SDL_SetWindowFullscreen(window, engine.fullScreen ? FULLSCREEN : 0);
 			engine.keyState[KEY_FULLSCREEN] = 0;
 		}
 	}

src/title.cpp

@@ -551,8 +551,7 @@ int title_show()
 						{
 							engine.fullScreen = !engine.fullScreen;
 							SDL_SetWindowFullscreen(window,
-								(engine.fullScreen ?
-									SDL_WINDOW_FULLSCREEN_DESKTOP : 0));
+								(engine.fullScreen ? FULLSCREEN : 0));
 							selectedOption = listLength;
 						}
 						else if (selectedOption == 4)