insertShape query {URGENT}

I am trying to insert 4 shapes in a single image using MATLAB function insertShape. The sequence of these 4 types of shape is decided by the MATLAB function randperm . I want suppose a shape is inserted after another shape, if the previous shape lies inside the present shape, then it should be removed. Please help!

The shapes are of white color with black boundary on a white background.

Please find the code as follows and suggest the changes as per my requirement

% definition of function used below to generate polygon
function cord=my_shape(sides,centroid_distance,centre)
clear x
clear y
clear xy
clear xyRotated
clear rotationMatrix
numSides=sides;
centroidToVertexDistance=centroid_distance;
minDistance = centroidToVertexDistance;
maxDistance = centroidToVertexDistance;

thisDistance = (maxDistance - minDistance) * rand(1) + minDistance;

for v = 1 : numSides
    angle = v * 360 / numSides;
    x(v) = thisDistance * cosd(angle);
    y(v) = thisDistance * sind(angle);
end
x(end+1) = x(1);
y(end+1) = y(1);
angleToRotate = 360 * rand(1);
rotationMatrix = [cosd(angleToRotate), sind(angleToRotate); -sind(angleToRotate), cosd(angleToRotate)];
xy = [x ; y];
xy=xy';
xyRotated = xy * rotationMatrix; 
x = xyRotated(:, 1); 
y = xyRotated(:, 2); 
xCenter = centre;
yCenter = centre;
x = x + xCenter;
y = y + yCenter;
cord=[x' ; y'];
cord=cord(:);
cord=round(cord');

num_of_images=2;
size_x=3000;
start_x=size_x;
size_y=3000;
start_y=size_y;
start=round(size_x/16);
for loop=1:num_of_images  
    cx=randi([round(start_x/4) round(3*size_x/4)]);
    cy=randi([round(start_y/4) round(3*size_y/4)]);
    cr=randi([round(start_x/6) round(size_x/4)]);
    rx=randi([round(start_x/4) round(3*size_x/4)]);
    ry=randi([round(start_y/4) round(3*size_y/4)]);
    rl=randi([round(start_x/6) round(size_x/3)]);
    rw=randi([round(start_x/6) round(size_y/3)]);
    RGB =255+zeros(size_x,size_y,3);
    RGB1=zeros(size_x,size_y,3);
    segim=zeros(size(RGB));
    turn=randperm(4);
    for i=1:4
        if turn(i)==1
            RGB = insertShape(RGB,'Circle',[cx cy cr],'LineWidth',15,'Color','black');
            segim = insertShape(segim,'FilledCircle',[cx cy cr],'Color','red','Opacity',1);
        elseif turn(i)==2
            RGB = insertShape(RGB,'Rectangle',[rx ry rw rl],'LineWidth',15,'Color','black');
            segim = insertShape(segim,'FilledRectangle',[rx ry rw rl],'Color','green','Opacity',1);
        elseif turn(i)==3
            cent=randi([round(start_x/8) round(3*size_x/4)]);
            dist=randi([round(start_x/6) round(size_x/4)]);
            put=my_shape(3,dist,cent);
            RGB = insertShape(RGB,'Polygon',put,'LineWidth',15,'Color','black');
            segim = insertShape(segim,'FilledPolygon',put,'Color','blue','Opacity',1);
        elseif turn(i)==4
            cent=randi([round(start_x/8) round(3*size_x/4)]);
            dist=randi([round(start_x/6) round(size_x/4)]);
            const=my_shape(5,dist,cent);
            RGB = insertShape(RGB,'Polygon',const,'LineWidth',15,'Color','black');
            segim = insertShape(segim,'FilledPolygon',const,'Color','yellow','Opacity',1);
        end
    end
    imshow([RGB,segim])
end