Hi Geoffrey,
To address the issue of the program freezing when the user switches from typing after selecting the 21st box back to clicking on any of the previous 20 boxes, we'll implement a solution that effectively "disables" mouse input after the 21st box is selected. The following steps can be followed to achieve so:
- Introduce a Flag to Control Mouse Input: First, introduce a boolean flag, 'mouseEnabled', which will control whether mouse inputs are processed. This flag will be set to true at the beginning of each block of your program, allowing mouse input. Once the 21st box is selected, this flag will be set to false, effectively ignoring further mouse inputs.
- Modify Mouse Input Processing: With the 'mouseEnabled' flag in place, we modify the section of the code that handles mouse inputs. Before processing any mouse events (like checking if the mouse is within bounds of an object), we check if 'mouseEnabled' is 'true'. If it's 'false', we skip the mouse input processing steps.
- Re-enable Mouse Input as Needed: Depending on the structure of the program and what happens after typing is completed, you might need to re-enable mouse input by setting 'mouseEnabled' back to 'true'. This step is crucial if your program enters another phase where mouse input should be processed again.
Here's the MATLAB code to reflect the above steps:
block = 1; % Assuming block starts at 1
blockMax = 10; % Example value for blockMax
ab = 1; % Assuming ab starts at 1
windowPtr = 1; % Placeholder for actual window pointer
% Placeholders for other variables you might have like Object, list, etc.
while block < (blockMax+1)
c = 1;
resp = 1;
mamaLoop = 0;
mouseEnabled = true; % Enable mouse input at the start of each block
while ab < 21
selected=0;
while selected==0
if mouseEnabled
% Record mouse events to move pics
[z,w,buttons]=GetMouse(windowPtr);
in_bounds = (z > [Object.LX{:}] & z < [Object.RX{:}]) & (w > [Object.LY{:}] & w < [Object.RY{:}]);
if any(in_bounds) && buttons(1) == 1
p= find(in_bounds, 1);
if p < 21
if strcmp(list(p).cue,list2(21,ab).cue)
selected = 1;
else
% Handle the case where it's not a match if needed
end
elseif p == 21
mouseEnabled = false; % Stop processing mouse clicks
selected = 1;
FlushEvents('keyDown');% Flush GetChar queue to remove stale characters
done = 0;
subresponse = []; % Assuming subresponse needs to be initialized
while done == 0 % Loop until <return> or <enter> is hit
[char,t]=GetChar; %%% HERE'S THE INPUT ACTION!!!!
switch(abs(char))
case {13, 3, 10} %if they hit enter or return, store their response
if isempty(subresponse)
done = 1;
selected = 1;
break
else
ab = ab + 1;
mamaLoop = 1;
done = 1;
selected = 1;
end
case {97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122}
if length(subresponse)== 12
else
subresponse=[subresponse char];
% Your code here for drawing
end
Screen('Flip', windowPtr);
end
end
end
end
end
end
end
Screen('Flip', windowPtr);
block = block + 1; % Ensure block is incremented to avoid infinite loop
end
The above code will prevent the program from freezing by not processing further mouse clicks after the 21st box is selected, allowing the typing input to proceed without interruption.
You may refer to the following documentation links to have a better understanding of GetMouse functions and Psychtoolbox:
