function [flickerTexture]=flickerTexture(winWidth,winHeight,targetWidth,targetHeight)
%% Generate matrix for 4 target (Top, Right, Down, Left)
for i=1:5
targetMatrix{i} = zeros(winHeight,winWidth,'uint8');
end
%conver maxtrix from zero to target
% 00100 Top
% 10001 Left/Right
% 00100 Down
for i =1:winHeight
for j=1:winWidth
%Target1 : Top
if (j>= (winWidth/2-targetWidth/2))&&( j <= winWidth/2+targetWidth/2)&&( i <= targetHeight)
targetMatrix{1}(i,j)=1; %match target coordinate
%disp('got it');
end
%Target3 : Down
if (j>= (winWidth/2-targetWidth/2))&&( j <= winWidth/2+targetWidth/2)&&( i >= (winHeight-targetHeight))
targetMatrix{3}(i,j)=1; %match target coordinate
%disp('got it');
end
%Target2 : Right
if (j >= (winWidth - targetWidth))&&( i >= (winHeight/2-targetHeight/2))&&( i <= (winHeight/2+targetHeight/2))
targetMatrix{2}(i,j)=1; %match target coordinate
end
%Target4 : Left
if (j<= (targetWidth))&&( i >= (winHeight/2-targetHeight/2))&&( i <= (winHeight/2+targetHeight/2))
targetMatrix{4}(i,j)=1; %match target coordinate
%disp('got it');
end
end
end
%%Draw texture to screen: Draw 16 states depens on the value of
for targetState1=1:2
for targetState2=1:2
for targetState3=1:2
for targetState4=1:2
textureNumber = (targetState4-1)*8 +(targetState3-1)*4 +(targetState2-1)*2 +(targetState1-1)*1 +1;
screenMatrix{textureNumber}=targetMatrix{5} | targetMatrix{1}*uint8(targetState1-1) |...
targetMatrix{2}*uint8(targetState2-1) | targetMatrix{3}*uint8(targetState3-1) |...
targetMatrix{4}*uint8(targetState4-1);
end
end
end
end
flickerTexture = screenMatrix;
end
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