fix issue with static dots

Author: Remi-Gau

lib/CPP_BIDS

@@ -50,19 +50,16 @@
     cfg.numEventsPerBlock = 12;
     cfg.eventDuration = 1; % second
 
-    % speed in visual angles / second
+    % Speed in visual angles / second
     cfg.dot.speed = 15;
     % Coherence Level (0-1)
     cfg.dot.coherence = 1;
-    % nb dots per visual angle square.
-    cfg.dot.density = .25;
-
+    % Number of dots per visual angle square.
+    cfg.dot.density = .05;
     % Dot life time in seconds
     cfg.dot.lifeTime = 10;
-
     % proportion of dots killed per frame
-    cfg.dot.proportionKilledPerFrame = .05;
-
+    cfg.dot.proportionKilledPerFrame = 0;
     % Dot Size (dot width) in visual angles.
     cfg.dot.size = 1;
     cfg.dot.color = cfg.color.white;

lib/CPP_PTB

@@ -16,7 +16,7 @@
 
     %% Get parameters
 
-    dots = initializeDots(cfg, thisEvent);
+    dots = initDots(cfg, thisEvent);
 
     % Set for how many frames this event will last
     framesLeft = floor(cfg.eventDuration / cfg.screen.ifi);

setParameters.m

@@ -38,8 +38,8 @@
 
     % Set directions for static and motion condition
     motionDirections = [0 90 180 270];
-    staticDirections = [0 90 180 270];
-    %     staticDirections = [-1 -1 -1 -1];
+%     staticDirections = [0 90 180 270];
+        staticDirections = [-1 -1 -1 -1];
 
     %% Check inputs