PlayMovieDriftBar3.m

% this script do not need the prepared movie text.
% Niki 2016/4/1
% adjusting stimuli setting according to published paper: CANG J, KALATSKY
% VA, L?WEL S, STRYKER MP. Optical imaging of the intrinsic signal as a
% measure of cortical plasticity in the mouse. Visual neuroscience.
% 2005;22(5):685-691. doi:10.1017/S0952523805225178.

clear
clc

Duration = 10;% seconds
repetition = 2;
BarWidth = 2/180*pi; % in radians

TriggerWidth = 60; % pixel size of Trigger Stingal (a white square on the bottom right corner on the screen)
TriggerDuration = 1; % seconds

NumCondition = 4; % [1:right, 2:bottom, 3:left, 4:top]
BlocksForEachCondition = 1;
InterBlockDuration = 2; %seconds

StimHoriRange = [-15, 5]; % degree
scr = screen;
PixPerDegree = scr.pix_per_degree;
BarWidth = BarWidth*scr.pix_per_rad;
MoveDirection = Shuffle(repmat((1:NumCondition)',1,BlocksForEachCondition));  

try
    Screen('Preference', 'SkipSyncTests', 1);
    % This script calls Psychtoolbox commands available only in OpenGL-based
    % versions of the Psychtoolbox. (So far, the OS X Psychtoolbox is the
    % only OpenGL-base Psychtoolbox.)  The Psychtoolbox command AssertPsychOpenGL will issue
    % an error message if someone tries to execute this script on a computer without
    % an OpenGL Psychtoolbox
    AssertOpenGL;
    
    % Get the list of screens and choose the one with the highest screen number.
    % Screen 0 is, by definition, the display with the menu bar. Often when
    % two monitors are connected the one without the menu bar is used as
    % the stimulus display.  Chosing the display with the highest dislay number is
    % a best guess about where you want the stimulus displayed.
    screens=Screen('Screens');
    screenNumber=max(screens);
    
    % Find the color values which correspond to white and black: Usually
    % black is always 0 and white 255, but this rule is not true if one of
    % the high precision framebuffer modes is enabled via the
    % PsychImaging() commmand, so we query the true values via the
    % functions WhiteIndex and BlackIndex:
    white=WhiteIndex(screenNumber);
    black=BlackIndex(screenNumber);
    
    % Round gray to integral number, to avoid roundoff artifacts with some
    % graphics cards:
    gray=round((white+black)/2);
    
    % This makes sure that on floating point framebuffers we still get a
    % well defined gray. It isn't strictly neccessary in this demo:
    if gray == white
        gray=white / 2;
    end
    
    % Open a double buffered fullscreen window and select a gray background
    % color:
    [w, screenRect]=Screen('OpenWindow',screenNumber, black);
    StimRect = reshape([screenRect(3)/2+round(StimHoriRange*PixPerDegree); screenRect([2,4])],1,4);
    
    frameRate=Screen('FrameRate',screenNumber);
    % If MacOSX does not know the frame rate the 'FrameRate' will return 0.
    % That usually means we run on a flat panel with 60 Hz fixed refresh
    % rate:
    if frameRate == 0
        frameRate=60;
    end
    
    HideCursor
    ListenChar(2) % suppress input from keybroad to appear in the command window or script

    % waitframes = 1 means: Redraw every monitor refresh. If your GPU is
    % not fast enough to do this, you can increment this to only redraw
    % every n'th refresh. All animation paramters will adapt to still
    % provide the proper grating. However, if you have a fine grating
    % drifting at a high speed, the refresh rate must exceed that
    % "effective" grating speed to avoid aliasing artifacts in time, i.e.,
    % to make sure to satisfy the constraints of the sampling theorem
    % (See Wikipedia: "Nyquist?Shannon sampling theorem" for a starter, if
    % you don't know what this means):
    waitframes = 1;
    % Query duration of one monitor refresh interval:
    ifi=Screen('GetFlipInterval', w);
    % Translate frames into seconds for screen update interval:
    waitduration = (waitframes - 0.5) * ifi;
    
    while 1
        WaitSecs(0.2);
        [~, ~, keyCode] = KbCheck();
        if any(strcmp(KbName(keyCode), {'ESCAPE','Escape','ESC','esc'}))
            ListenChar(1)
            sca;
            return;
        elseif any(strcmp(KbName(keyCode), {'space','s'}))
            break
        end
    end
    
    for i_block = 1:BlocksForEachCondition
        for j = 1:NumCondition
            
            BarRect = MakeDriftBarRect(Duration, BarWidth, MoveDirection(j,i_block), StimRect, frameRate);
            
            TriggerFrames = TriggerDuration * frameRate;
            % right bottom:
            %TriggerRect = [screenRect([3,4])-TriggerWidth, screenRect([3,4])]';
            % right top:
            TriggerRect = [screenRect(3)-TriggerWidth, screenRect([2,3]), TriggerWidth]';
            totalframes = size(BarRect,2);
            % onset = nan(totalframes,1);
            
            vbl=GetSecs;
            for rep = 1:repetition
                % Animation loop:
                for i=1:totalframes
                    % Draw image:
                    if i<=TriggerFrames&&rep==1
                        Screen('Fillrect', w, white, [BarRect(:,i), TriggerRect]);
                    else
                        Screen('Fillrect', w, white, BarRect(:,i));
                    end
                    % Screen('DrawText', w, [num2str(i_rep), num2str(frameRate)],10 );
                    % Flip 'waitframes' monitor refresh intervals after last redraw.
                    % Providing this 'when' timestamp allows for optimal timing
                    % precision in stimulus onset, a stable animation framerate and at
                    % the same time allows the built-in "skipped frames" detector to
                    % work optimally and report skipped frames due to hardware
                    % overload:
                    %[vbl, onset(i)]= Screen('Flip', w, vbl + waitduration);
                    vbl= Screen('Flip', w, vbl + waitduration);
                    %[~, onset(i)]= Screen('Flip', w);
                end
            end
            DrawFormattedText(w, 'Waiting for next block','center','center',white)
            Screen('Flip',w);
            WaitSecs(InterBlockDuration);
        end
        
    end
    
    Priority(0);

    % Close window:
    Screen('CloseAll');
    ListenChar(1);
    ShowCursor;
%     difonset = diff(onset(:));
%     plot(difonset);
%     title(['total duration: ' num2str(range(onset(:)))])

    save(['StimSequcence',datestr(date,'yyyymmddTHHMMSS')], 'MoveDirection')
catch
    
    Screen('CloseAll');
    Priority(0);
    ListenChar(1);
    ShowCursor;
    psychrethrow(psychlasterror);
    
end %try..catch..