+ if (PendingEvent())
+ HandleEvents();
+ else
+ HandleNoEvent();
+
+ /* execute event related actions after pending events have been processed */
+ HandleEventActions();
+
+ /* don't use all CPU time when idle; the main loop while playing
+ has its own synchronization and is CPU friendly, too */
+
+ if (game_status == GAME_MODE_PLAYING)
+ HandleGameActions();
+
+ /* always copy backbuffer to visible screen for every video frame */
+ BackToFront();
+
+ /* reset video frame delay to default (may change again while playing) */
+ SetVideoFrameDelay(MenuFrameDelay);
+
+ if (game_status == GAME_MODE_QUIT)
+ return;
+ }
+}
+
+void ClearEventQueue()
+{
+ Event event;
+
+ while (NextValidEvent(&event))
+ {
+ switch (event.type)
+ {
+ case EVENT_BUTTONRELEASE:
+ button_status = MB_RELEASED;
+ break;
+
+ case EVENT_KEYRELEASE:
+ ClearPlayerAction();
+ break;
+
+#if defined(TARGET_SDL2)
+ case SDL_CONTROLLERBUTTONUP:
+ HandleJoystickEvent(&event);
+ ClearPlayerAction();
+ break;
+#endif
+
+ default:
+ HandleOtherEvents(&event);
+ break;
+ }
+ }
+}
+
+void ClearPlayerMouseAction()
+{
+ local_player->mouse_action.lx = 0;
+ local_player->mouse_action.ly = 0;
+ local_player->mouse_action.button = 0;
+}
+
+void ClearPlayerAction()
+{
+ int i;
+
+ /* simulate key release events for still pressed keys */
+ key_joystick_mapping = 0;
+ for (i = 0; i < MAX_PLAYERS; i++)
+ stored_player[i].action = 0;
+
+ ClearJoystickState();
+ ClearPlayerMouseAction();
+}
+
+void SetPlayerMouseAction(int mx, int my, int button)
+{
+ int lx = getLevelFromScreenX(mx);
+ int ly = getLevelFromScreenY(my);
+ int new_button = (!local_player->mouse_action.button && button);
+
+ if (local_player->mouse_action.button_hint)
+ button = local_player->mouse_action.button_hint;
+
+ ClearPlayerMouseAction();
+
+ if (!IN_GFX_FIELD_PLAY(mx, my) || !IN_LEV_FIELD(lx, ly))
+ return;
+
+ local_player->mouse_action.lx = lx;
+ local_player->mouse_action.ly = ly;
+ local_player->mouse_action.button = button;
+
+ if (tape.recording && tape.pausing && tape.use_mouse)
+ {
+ /* un-pause a paused game only if mouse button was newly pressed down */
+ if (new_button)
+ TapeTogglePause(TAPE_TOGGLE_AUTOMATIC);
+ }
+
+ SetTileCursorXY(lx, ly);
+}
+
+void SleepWhileUnmapped()
+{
+ boolean window_unmapped = TRUE;
+
+ KeyboardAutoRepeatOn();
+
+ while (window_unmapped)
+ {
+ Event event;
+
+ if (!WaitValidEvent(&event))
+ continue;
+
+ switch (event.type)
+ {
+ case EVENT_BUTTONRELEASE:
+ button_status = MB_RELEASED;
+ break;
+
+ case EVENT_KEYRELEASE:
+ key_joystick_mapping = 0;
+ break;
+
+#if defined(TARGET_SDL2)
+ case SDL_CONTROLLERBUTTONUP:
+ HandleJoystickEvent(&event);
+ key_joystick_mapping = 0;
+ break;
+#endif
+
+ case EVENT_MAPNOTIFY:
+ window_unmapped = FALSE;
+ break;
+
+ case EVENT_UNMAPNOTIFY:
+ /* this is only to surely prevent the 'should not happen' case
+ * of recursively looping between 'SleepWhileUnmapped()' and
+ * 'HandleOtherEvents()' which usually calls this funtion.
+ */
+ break;
+
+ default:
+ HandleOtherEvents(&event);
+ break;
+ }
+ }
+
+ if (game_status == GAME_MODE_PLAYING)
+ KeyboardAutoRepeatOffUnlessAutoplay();
+}
+
+void HandleExposeEvent(ExposeEvent *event)
+{
+}
+
+void HandleButtonEvent(ButtonEvent *event)
+{
+#if DEBUG_EVENTS_BUTTON
+ Error(ERR_DEBUG, "BUTTON EVENT: button %d %s, x/y %d/%d\n",
+ event->button,
+ event->type == EVENT_BUTTONPRESS ? "pressed" : "released",
+ event->x, event->y);
+#endif
+
+ // for any mouse button event, disable playfield tile cursor
+ SetTileCursorEnabled(FALSE);
+
+#if defined(HAS_SCREEN_KEYBOARD)
+ if (video.shifted_up)
+ event->y += video.shifted_up_pos;
+#endif
+
+ motion_status = FALSE;
+
+ if (event->type == EVENT_BUTTONPRESS)
+ button_status = event->button;
+ else
+ button_status = MB_RELEASED;
+
+ HandleButton(event->x, event->y, button_status, event->button);
+}
+
+void HandleMotionEvent(MotionEvent *event)
+{
+ if (button_status == MB_RELEASED && game_status != GAME_MODE_EDITOR)
+ return;
+
+ motion_status = TRUE;
+
+#if DEBUG_EVENTS_MOTION
+ Error(ERR_DEBUG, "MOTION EVENT: button %d moved, x/y %d/%d\n",
+ button_status, event->x, event->y);
+#endif
+
+ HandleButton(event->x, event->y, button_status, button_status);
+}
+
+#if defined(TARGET_SDL2)
+
+void HandleWheelEvent(WheelEvent *event)
+{
+ int button_nr;
+
+#if DEBUG_EVENTS_WHEEL
+#if 1
+ Error(ERR_DEBUG, "WHEEL EVENT: mouse == %d, x/y == %d/%d\n",
+ event->which, event->x, event->y);
+#else
+ // (SDL_MOUSEWHEEL_NORMAL/SDL_MOUSEWHEEL_FLIPPED needs SDL 2.0.4 or newer)
+ Error(ERR_DEBUG, "WHEEL EVENT: mouse == %d, x/y == %d/%d, direction == %s\n",
+ event->which, event->x, event->y,
+ (event->direction == SDL_MOUSEWHEEL_NORMAL ? "SDL_MOUSEWHEEL_NORMAL" :
+ "SDL_MOUSEWHEEL_FLIPPED"));
+#endif
+#endif
+
+ button_nr = (event->x < 0 ? MB_WHEEL_LEFT :
+ event->x > 0 ? MB_WHEEL_RIGHT :
+ event->y < 0 ? MB_WHEEL_DOWN :
+ event->y > 0 ? MB_WHEEL_UP : 0);
+
+#if defined(PLATFORM_WIN32) || defined(PLATFORM_MACOSX)
+ // accelerated mouse wheel available on Mac and Windows
+ wheel_steps = (event->x ? ABS(event->x) : ABS(event->y));
+#else
+ // no accelerated mouse wheel available on Unix/Linux
+ wheel_steps = DEFAULT_WHEEL_STEPS;
+#endif
+
+ motion_status = FALSE;
+
+ button_status = button_nr;
+ HandleButton(0, 0, button_status, -button_nr);
+
+ button_status = MB_RELEASED;
+ HandleButton(0, 0, button_status, -button_nr);
+}
+
+void HandleWindowEvent(WindowEvent *event)
+{
+#if DEBUG_EVENTS_WINDOW
+ int subtype = event->event;
+
+ char *event_name =
+ (subtype == SDL_WINDOWEVENT_SHOWN ? "SDL_WINDOWEVENT_SHOWN" :
+ subtype == SDL_WINDOWEVENT_HIDDEN ? "SDL_WINDOWEVENT_HIDDEN" :
+ subtype == SDL_WINDOWEVENT_EXPOSED ? "SDL_WINDOWEVENT_EXPOSED" :
+ subtype == SDL_WINDOWEVENT_MOVED ? "SDL_WINDOWEVENT_MOVED" :
+ subtype == SDL_WINDOWEVENT_SIZE_CHANGED ? "SDL_WINDOWEVENT_SIZE_CHANGED" :
+ subtype == SDL_WINDOWEVENT_RESIZED ? "SDL_WINDOWEVENT_RESIZED" :
+ subtype == SDL_WINDOWEVENT_MINIMIZED ? "SDL_WINDOWEVENT_MINIMIZED" :
+ subtype == SDL_WINDOWEVENT_MAXIMIZED ? "SDL_WINDOWEVENT_MAXIMIZED" :
+ subtype == SDL_WINDOWEVENT_RESTORED ? "SDL_WINDOWEVENT_RESTORED" :
+ subtype == SDL_WINDOWEVENT_ENTER ? "SDL_WINDOWEVENT_ENTER" :
+ subtype == SDL_WINDOWEVENT_LEAVE ? "SDL_WINDOWEVENT_LEAVE" :
+ subtype == SDL_WINDOWEVENT_FOCUS_GAINED ? "SDL_WINDOWEVENT_FOCUS_GAINED" :
+ subtype == SDL_WINDOWEVENT_FOCUS_LOST ? "SDL_WINDOWEVENT_FOCUS_LOST" :
+ subtype == SDL_WINDOWEVENT_CLOSE ? "SDL_WINDOWEVENT_CLOSE" :
+ "(UNKNOWN)");
+
+ Error(ERR_DEBUG, "WINDOW EVENT: '%s', %ld, %ld",
+ event_name, event->data1, event->data2);
+#endif
+
+#if 0
+ // (not needed, as the screen gets redrawn every 20 ms anyway)
+ if (event->event == SDL_WINDOWEVENT_SIZE_CHANGED ||
+ event->event == SDL_WINDOWEVENT_RESIZED ||
+ event->event == SDL_WINDOWEVENT_EXPOSED)
+ SDLRedrawWindow();
+#endif
+
+ if (event->event == SDL_WINDOWEVENT_RESIZED)
+ {
+ if (!video.fullscreen_enabled)
+ {
+ int new_window_width = event->data1;
+ int new_window_height = event->data2;
+
+ // if window size has changed after resizing, calculate new scaling factor
+ if (new_window_width != video.window_width ||
+ new_window_height != video.window_height)
+ {
+ int new_xpercent = 100.0 * new_window_width / video.screen_width + .5;
+ int new_ypercent = 100.0 * new_window_height / video.screen_height + .5;
+
+ // (extreme window scaling allowed, but cannot be saved permanently)
+ video.window_scaling_percent = MIN(new_xpercent, new_ypercent);
+ setup.window_scaling_percent =
+ MIN(MAX(MIN_WINDOW_SCALING_PERCENT, video.window_scaling_percent),
+ MAX_WINDOW_SCALING_PERCENT);
+
+ video.window_width = new_window_width;
+ video.window_height = new_window_height;
+
+ if (game_status == GAME_MODE_SETUP)
+ RedrawSetupScreenAfterFullscreenToggle();
+
+ SetWindowTitle();
+ }
+ }
+#if defined(PLATFORM_ANDROID)
+ else
+ {
+ int new_display_width = event->data1;
+ int new_display_height = event->data2;
+
+ // if fullscreen display size has changed, device has been rotated
+ if (new_display_width != video.display_width ||
+ new_display_height != video.display_height)
+ {
+ int nr = GRID_ACTIVE_NR(); // previous screen orientation
+
+ video.display_width = new_display_width;
+ video.display_height = new_display_height;
+
+ SDLSetScreenProperties();
+
+ // check if screen orientation has changed (should always be true here)
+ if (nr != GRID_ACTIVE_NR())
+ {
+ int x, y;
+
+ if (game_status == GAME_MODE_SETUP)
+ RedrawSetupScreenAfterScreenRotation(nr);
+
+ nr = GRID_ACTIVE_NR();
+
+ overlay.grid_xsize = setup.touch.grid_xsize[nr];
+ overlay.grid_ysize = setup.touch.grid_ysize[nr];
+
+ for (x = 0; x < MAX_GRID_XSIZE; x++)
+ for (y = 0; y < MAX_GRID_YSIZE; y++)
+ overlay.grid_button[x][y] = setup.touch.grid_button[nr][x][y];
+ }
+ }
+ }
+#endif
+ }
+}
+
+#define NUM_TOUCH_FINGERS 3
+
+static struct
+{
+ boolean touched;
+ SDL_FingerID finger_id;
+ int counter;
+ Key key;
+} touch_info[NUM_TOUCH_FINGERS];
+
+void HandleFingerEvent_VirtualButtons(FingerEvent *event)
+{
+#if 1
+ int x = event->x * overlay.grid_xsize;
+ int y = event->y * overlay.grid_ysize;
+ int grid_button = overlay.grid_button[x][y];
+ int grid_button_action = GET_ACTION_FROM_GRID_BUTTON(grid_button);
+ Key key = (grid_button == CHAR_GRID_BUTTON_LEFT ? setup.input[0].key.left :
+ grid_button == CHAR_GRID_BUTTON_RIGHT ? setup.input[0].key.right :
+ grid_button == CHAR_GRID_BUTTON_UP ? setup.input[0].key.up :
+ grid_button == CHAR_GRID_BUTTON_DOWN ? setup.input[0].key.down :
+ grid_button == CHAR_GRID_BUTTON_SNAP ? setup.input[0].key.snap :
+ grid_button == CHAR_GRID_BUTTON_DROP ? setup.input[0].key.drop :
+ KSYM_UNDEFINED);
+#else
+ float ypos = 1.0 - 1.0 / 3.0 * video.display_width / video.display_height;
+ float event_x = (event->x);
+ float event_y = (event->y - ypos) / (1 - ypos);
+ Key key = (event_x > 0 && event_x < 1.0 / 6.0 &&
+ event_y > 2.0 / 3.0 && event_y < 1 ?
+ setup.input[0].key.snap :
+ event_x > 1.0 / 6.0 && event_x < 1.0 / 3.0 &&
+ event_y > 2.0 / 3.0 && event_y < 1 ?
+ setup.input[0].key.drop :
+ event_x > 7.0 / 9.0 && event_x < 8.0 / 9.0 &&
+ event_y > 0 && event_y < 1.0 / 3.0 ?
+ setup.input[0].key.up :
+ event_x > 6.0 / 9.0 && event_x < 7.0 / 9.0 &&
+ event_y > 1.0 / 3.0 && event_y < 2.0 / 3.0 ?
+ setup.input[0].key.left :
+ event_x > 8.0 / 9.0 && event_x < 1 &&
+ event_y > 1.0 / 3.0 && event_y < 2.0 / 3.0 ?
+ setup.input[0].key.right :
+ event_x > 7.0 / 9.0 && event_x < 8.0 / 9.0 &&
+ event_y > 2.0 / 3.0 && event_y < 1 ?
+ setup.input[0].key.down :
+ KSYM_UNDEFINED);
+#endif
+ int key_status = (event->type == EVENT_FINGERRELEASE ? KEY_RELEASED :
+ KEY_PRESSED);
+ char *key_status_name = (key_status == KEY_RELEASED ? "KEY_RELEASED" :
+ "KEY_PRESSED");
+ int i;
+
+ // for any touch input event, enable overlay buttons (if activated)
+ SetOverlayEnabled(TRUE);
+
+ Error(ERR_DEBUG, "::: key '%s' was '%s' [fingerId: %lld]",
+ getKeyNameFromKey(key), key_status_name, event->fingerId);
+
+ if (key_status == KEY_PRESSED)
+ overlay.grid_button_action |= grid_button_action;
+ else
+ overlay.grid_button_action &= ~grid_button_action;
+
+ // check if we already know this touch event's finger id
+ for (i = 0; i < NUM_TOUCH_FINGERS; i++)
+ {
+ if (touch_info[i].touched &&
+ touch_info[i].finger_id == event->fingerId)
+ {
+ // Error(ERR_DEBUG, "MARK 1: %d", i);
+
+ break;
+ }
+ }
+
+ if (i >= NUM_TOUCH_FINGERS)
+ {
+ if (key_status == KEY_PRESSED)