added tile selection cursor for playing MM levels with keyboard or joystick

[rocksndiamonds.git] / src / libgame / sdl.c

diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c
index 8751f1b999dfa4de510e8eacf78aee61a9684e11..34c4004420f62e8b4ef947ece872dcca0656a569 100644 (file)
--- a/src/libgame/sdl.c
+++ b/src/libgame/sdl.c
@@ -17,6 +17,8 @@
 
 #define ENABLE_UNUSED_CODE     0       /* currently unused functions */
 
+#define DEBUG_JOYSTICKS                0
+
 
 /* ========================================================================= */
 /* video functions                                                           */
@@ -60,6 +62,10 @@ static void FinalizeScreen(int draw_target)
   // copy global animations to render target buffer, if defined (above border)
   if (gfx.draw_global_anim_function != NULL)
     gfx.draw_global_anim_function(draw_target, DRAW_GLOBAL_ANIM_STAGE_2);
+
+  // copy tile selection cursor to render target buffer, if defined (above all)
+  if (gfx.draw_tile_cursor_function != NULL)
+    gfx.draw_tile_cursor_function(draw_target);
 }
 
 static void UpdateScreenExt(SDL_Rect *rect, boolean with_frame_delay)
@@ -532,11 +538,7 @@ inline static void SDLInitVideoBuffer_VideoBuffer(boolean fullscreen)
   SDLSetWindowIcon(program.icon_filename);
 
   /* set window and icon title */
-#if defined(TARGET_SDL2)
-  SDL_SetWindowTitle(sdl_window, program.window_title);
-#else
-  SDL_WM_SetCaption(program.window_title, program.window_title);
-#endif
+  SDLSetWindowTitle();
 }
 
 inline static void SDLInitVideoBuffer_DrawBuffer()
@@ -830,6 +832,9 @@ boolean SDLSetVideoMode(boolean fullscreen)
 void SDLSetWindowTitle()
 {
 #if defined(TARGET_SDL2)
+  if (sdl_window == NULL)
+    return;
+
   SDL_SetWindowTitle(sdl_window, program.window_title);
 #else
   SDL_WM_SetCaption(program.window_title, program.window_title);
@@ -2535,7 +2540,7 @@ void SDLCloseAudio(void)
 /* event functions                                                           */
 /* ========================================================================= */
 
-void SDLNextEvent(Event *event)
+void SDLWaitEvent(Event *event)
 {
   SDL_WaitEvent(event);
 }
@@ -2601,7 +2606,22 @@ static int sdl_js_axis[MAX_PLAYERS][2];
 static int sdl_js_button[MAX_PLAYERS][2];
 static boolean sdl_is_controller[MAX_PLAYERS];
 
-static boolean SDLOpenJoystick(int nr)
+void SDLClearJoystickState()
+{
+  int i, j;
+
+  for (i = 0; i < MAX_PLAYERS; i++)
+  {
+    for (j = 0; j < 2; j++)
+    {
+      sdl_js_axis_raw[i][j] = -1;
+      sdl_js_axis[i][j] = 0;
+      sdl_js_button[i][j] = 0;
+    }
+  }
+}
+
+boolean SDLOpenJoystick(int nr)
 {
   if (nr < 0 || nr >= MAX_PLAYERS)
     return FALSE;
@@ -2612,7 +2632,7 @@ static boolean SDLOpenJoystick(int nr)
   sdl_is_controller[nr] = FALSE;
 #endif
 
-#if 1
+#if DEBUG_JOYSTICKS
   Error(ERR_DEBUG, "opening joystick %d (%s)",
        nr, (sdl_is_controller[nr] ? "game controller" : "joystick"));
 #endif
@@ -2629,12 +2649,12 @@ static boolean SDLOpenJoystick(int nr)
   return (sdl_joystick[nr] != NULL);
 }
 
-static void SDLCloseJoystick(int nr)
+void SDLCloseJoystick(int nr)
 {
   if (nr < 0 || nr >= MAX_PLAYERS)
     return;
 
-#if 1
+#if DEBUG_JOYSTICKS
   Error(ERR_DEBUG, "closing joystick %d", nr);
 #endif
 
@@ -2648,13 +2668,6 @@ static void SDLCloseJoystick(int nr)
 #endif
 
   sdl_joystick[nr] = NULL;
-
-  sdl_js_axis_raw[nr][0] = -1;
-  sdl_js_axis_raw[nr][1] = -1;
-  sdl_js_axis[nr][0] = 0;
-  sdl_js_axis[nr][1] = 0;
-  sdl_js_button[nr][0] = 0;
-  sdl_js_button[nr][1] = 0;
 }
 
 boolean SDLCheckJoystickOpened(int nr)
@@ -2741,7 +2754,7 @@ void HandleJoystickEvent(Event *event)
   {
 #if defined(TARGET_SDL2)
     case SDL_CONTROLLERDEVICEADDED:
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_CONTROLLERDEVICEADDED: device %d added",
            event->cdevice.which);
 #endif
@@ -2749,7 +2762,7 @@ void HandleJoystickEvent(Event *event)
       break;
 
     case SDL_CONTROLLERDEVICEREMOVED:
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_CONTROLLERDEVICEREMOVED: device %d removed",
            event->cdevice.which);
 #endif
@@ -2757,7 +2770,7 @@ void HandleJoystickEvent(Event *event)
       break;
 
     case SDL_CONTROLLERAXISMOTION:
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_CONTROLLERAXISMOTION: device %d, axis %d: %d",
            event->caxis.which, event->caxis.axis, event->caxis.value);
 #endif
@@ -2767,7 +2780,7 @@ void HandleJoystickEvent(Event *event)
       break;
 
     case SDL_CONTROLLERBUTTONDOWN:
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_CONTROLLERBUTTONDOWN: device %d, button %d",
            event->cbutton.which, event->cbutton.button);
 #endif
@@ -2777,7 +2790,7 @@ void HandleJoystickEvent(Event *event)
       break;
 
     case SDL_CONTROLLERBUTTONUP:
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_CONTROLLERBUTTONUP: device %d, button %d",
            event->cbutton.which, event->cbutton.button);
 #endif
@@ -2791,7 +2804,7 @@ void HandleJoystickEvent(Event *event)
       if (sdl_is_controller[event->jaxis.which])
        break;
 
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_JOYAXISMOTION: device %d, axis %d: %d",
            event->jaxis.which, event->jaxis.axis, event->jaxis.value);
 #endif
@@ -2805,7 +2818,7 @@ void HandleJoystickEvent(Event *event)
       if (sdl_is_controller[event->jaxis.which])
        break;
 
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_JOYBUTTONDOWN: device %d, button %d",
            event->jbutton.which, event->jbutton.button);
 #endif
@@ -2819,7 +2832,7 @@ void HandleJoystickEvent(Event *event)
       if (sdl_is_controller[event->jaxis.which])
        break;
 
-#if 1
+#if DEBUG_JOYSTICKS
       Error(ERR_DEBUG, "SDL_JOYBUTTONUP: device %d, button %d",
            event->jbutton.which, event->jbutton.button);
 #endif
@@ -2839,7 +2852,7 @@ void SDLInitJoysticks()
   static boolean sdl_joystick_subsystem_initialized = FALSE;
   boolean print_warning = !sdl_joystick_subsystem_initialized;
 #if defined(TARGET_SDL2)
-  char *mappings_file_base = getPath2(options.ro_base_directory,
+  char *mappings_file_base = getPath2(options.conf_directory,
                                      GAMECONTROLLER_BASENAME);
   char *mappings_file_user = getPath2(getUserGameDataDir(),
                                      GAMECONTROLLER_BASENAME);
@@ -2866,23 +2879,30 @@ void SDLInitJoysticks()
 #if defined(TARGET_SDL2)
     num_mappings = SDL_GameControllerAddMappingsFromFile(mappings_file_base);
 
-    if (num_mappings != -1)
-      Error(ERR_INFO, "%d game controller base mapping(s) added", num_mappings);
-    else
+    /* the included game controller base mappings should always be found */
+    if (num_mappings == -1)
       Error(ERR_WARN, "no game controller base mappings found");
+#if DEBUG_JOYSTICKS
+    else
+      Error(ERR_INFO, "%d game controller base mapping(s) added", num_mappings);
+#endif
 
     num_mappings = SDL_GameControllerAddMappingsFromFile(mappings_file_user);
 
-    if (num_mappings != -1)
-      Error(ERR_INFO, "%d game controller user mapping(s) added", num_mappings);
-    else
+#if DEBUG_JOYSTICKS
+    /* the personal game controller user mappings may or may not be found */
+    if (num_mappings == -1)
       Error(ERR_WARN, "no game controller user mappings found");
+    else
+      Error(ERR_INFO, "%d game controller user mapping(s) added", num_mappings);
 
     Error(ERR_INFO, "%d joystick(s) found:", SDL_NumJoysticks());
+#endif
 
     checked_free(mappings_file_base);
     checked_free(mappings_file_user);
 
+#if DEBUG_JOYSTICKS
     for (i = 0; i < SDL_NumJoysticks(); i++)
     {
       const char *name, *type;
@@ -2901,6 +2921,7 @@ void SDLInitJoysticks()
       Error(ERR_INFO, "- joystick %d (%s): '%s'",
            i, type, (name ? name : "(Unknown)"));
     }
+#endif
 #endif
   }
 
@@ -2935,6 +2956,8 @@ void SDLInitJoysticks()
     else if (print_warning)
       Error(ERR_WARN, "cannot open joystick %d", i);
   }
+
+  SDLClearJoystickState();
 }
 
 boolean SDLReadJoystick(int nr, int *x, int *y, boolean *b1, boolean *b2)
@@ -2955,6 +2978,11 @@ boolean SDLReadJoystick(int nr, int *x, int *y, boolean *b1, boolean *b2)
   return TRUE;
 }
 
+
+/* ========================================================================= */
+/* touch input overlay functions                                             */
+/* ========================================================================= */
+
 #if defined(USE_TOUCH_INPUT_OVERLAY)
 static void DrawTouchInputOverlay()
 {