// returns true if the game state was changed (loaded)
bool PLAYBACK::setPlaybackAboveOrToFrame(int frame, bool forceStateReload)
{
bool state_changed = false;
// search backwards for an earlier frame with valid savestate
int i = greenzone.getSize() - 1;
if (i > frame)
i = frame;
for (; i >= 0; i--)
{
if (!forceStateReload && !state_changed && i == currFrameCounter)
{
// we can remain at current game state
break;
} else if (!greenzone.isSavestateEmpty(i))
{
state_changed = true; // after we once tried loading a savestate, we cannot use currFrameCounter state anymore, because the game state might have been corrupted by this loading attempt
if (greenzone.loadSavestateOfFrame(i))
break;
}
}
if (i < 0)
{
// couldn't find a savestate
restartPlaybackFromZeroGround();
state_changed = true;
}
return state_changed;
}
void PLAYBACK::ensurePlaybackIsInsideGreenzone(bool executeLua)
{
// set the Playback cursor to the frame or at least above the frame
if (setPlaybackAboveOrToFrame(greenzone.getSize() - 1))
{
// since the game state was changed by this jump, we must update possible Lua callbacks and other tools that would normally only update in FCEUI_Emulate
if (executeLua)
ForceExecuteLuaFrameFunctions();
Update_RAM_Search(); // Update_RAM_Watch() is also called.
}
// follow the Playback cursor, but in case of seeking don't follow it
pianoRoll.followPlaybackCursorIfNeeded(false);
}
void PLAYBACK::handleMiddleButtonClick()
{
if (emuPausedState)
{
// Unpause or start seeking
// works only when right mouse button is released
if (GetAsyncKeyState(GetSystemMetrics(SM_SWAPBUTTON) ? VK_LBUTTON : VK_RBUTTON) >= 0)
{
if (GetAsyncKeyState(VK_SHIFT) < 0)
{
// if Shift is held, seek to nearest Marker
int last_frame = markersManager.getMarkersArraySize() - 1; // the end of movie Markers
int target_frame = currFrameCounter + 1;
for (; target_frame <= last_frame; ++target_frame)
if (markersManager.getMarkerAtFrame(target_frame)) break;
if (target_frame <= last_frame)
startSeekingToFrame(target_frame);
} else if (GetAsyncKeyState(VK_CONTROL) < 0)
{
// if Ctrl is held, seek to Selection cursor or replay from Selection cursor
int selection_beginning = selection.getCurrentRowsSelectionBeginning();
if (selection_beginning > currFrameCounter)
{
startSeekingToFrame(selection_beginning);
} else if (selection_beginning < currFrameCounter)
{
int saved_currFrameCounter = currFrameCounter;
if (selection_beginning < 0)
selection_beginning = 0;
jump(selection_beginning);
startSeekingToFrame(saved_currFrameCounter);
}
} else if (getPauseFrame() < 0 && getLastPosition() >= greenzone.getSize())
{
restoreLastPosition();
} else
{
unpauseEmulation();
}
}
} else
{
pauseEmulation();
}
}