First commit
En Yi
commit
988a7b9492
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function OuO()
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%% Create the window
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clc;
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%Default Constants
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default_updatetime = 0.002;
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%Create the update timer, used for continuously updating the game screen
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update_t = timer('ExecutionMode','fixedSpacing','Period',default_updatetime,'TimerFcn',@update_face);
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blink_t = timer('ExecutionMode','singleShot','StartDelay',2,'TimerFcn',@set_blink);
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mood_t = timer('ExecutionMode','fixedSpacing','Period',5,'TimerFcn',@set_mood);
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%Create the window
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scrsz = get(0,'ScreenSize');
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start_dim = min(scrsz(3)/1.5,scrsz(4)/1.5);%Used for rescaling
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win = figure('DeleteFcn',@delete_timers,'ToolBar',...
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'none','Name','OuO','NumberTitle','off','MenuBar','none',...
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'Resize','off','Visible','off','Color',[0 0 0]/255,...
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'Position',[[scrsz(3),scrsz(4)]/4.5 start_dim start_dim],...
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'WindowButtonMotionFcn',@blank_function);
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%% Create the UI componenets
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face_axes = axes('Parent',win,'Position',[0 0 1 1]);
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set(win,'Visible','on')
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%% Define face features
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face_size = [4;4];
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lefteye_startpos = [1.1;2.5];
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lefteye_currentpos = lefteye_startpos;
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lefteye_setpos = lefteye_startpos;
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lefteye_size = 0.3;
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leftbrow_currentangles = [90 90];
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leftbrow_setangles = [90 90];
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leftbottom_currentangles = [90 90];
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leftbottom_setangles = [90 90];
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righteye_startpos = [2.9;2.5];
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righteye_currentpos = righteye_startpos;
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righteye_setpos = righteye_startpos;
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righteye_size = 0.3;
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rightbrow_currentangles = [90 90];
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rightbrow_setangles = [90 90];
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rightbottom_currentangles = [90 90];
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rightbottom_setangles = [90 90];
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blinking = 0;
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mouth_centre = [2;1.5];
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mouth_width = 0.5;
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mouth_shift = -1;
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mouth_setshift = -1;
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current_mood = 'Happy';
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set(face_axes,'Xlim',[0 face_size(1)],'Ylim',[0 face_size(2)],'Visible','off');
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start(update_t)
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start(mood_t)
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%% Callback functions
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function update_face(~,~)
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cla(face_axes)
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[Xx,Yy] = get_mouse_pos();
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detect_range = 1.5;
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mouse_relative_pos = ([Xx;Yy] - face_size/2).*[1;1j];
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if (abs(mouse_relative_pos)<detect_range)
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mouse_ang = atan2d(Yy-lefteye_startpos(2),Xx-lefteye_startpos(1));
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lefteye_setpos = pos_offset(lefteye_startpos,mouse_ang,lefteye_size);
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mouse_ang = atan2d(Yy-righteye_startpos(2),Xx-righteye_startpos(1));
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righteye_setpos = pos_offset(righteye_startpos,mouse_ang,righteye_size);
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max_h = max(righteye_setpos(2),lefteye_setpos(2));
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lefteye_setpos(2) = max_h;
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righteye_setpos(2) = max_h;
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else
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lefteye_setpos = lefteye_startpos;
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righteye_setpos = righteye_startpos;
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end
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lefteye_currentpos = approach(lefteye_currentpos,lefteye_setpos,0.2);
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righteye_currentpos = approach(righteye_currentpos,righteye_setpos,0.2);
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if(~blinking)
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leftbrow_currentangles = approach(leftbrow_currentangles,leftbrow_setangles,0.2);
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leftbottom_currentangles = approach(leftbottom_currentangles,leftbottom_setangles,0.2);
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rightbrow_currentangles = approach(rightbrow_currentangles,rightbrow_setangles,0.2);
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rightbottom_currentangles = approach(rightbottom_currentangles,rightbottom_setangles,0.2);
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lefteye_vert = calc_eye_vertex(lefteye_currentpos,lefteye_size,leftbrow_currentangles,leftbottom_currentangles);
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righteye_vert = calc_eye_vertex(righteye_currentpos,righteye_size,rightbrow_currentangles,rightbottom_currentangles);
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else
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leftbrow_currentangles = approach(leftbrow_currentangles,[0 0],0.8);
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leftbottom_currentangles = approach(leftbottom_currentangles,[0 0],0.8);
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rightbrow_currentangles = approach(rightbrow_currentangles,[0 0],0.8);
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rightbottom_currentangles = approach(rightbottom_currentangles,[0 0],0.8);
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lefteye_vert = calc_eye_vertex(lefteye_currentpos,lefteye_size,leftbrow_currentangles,leftbottom_currentangles);
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righteye_vert = calc_eye_vertex(righteye_currentpos,righteye_size,rightbrow_currentangles,rightbottom_currentangles);
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end
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mouth_shift = approach(mouth_shift,mouth_setshift,0.2);
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mouth_vert = calc_mouth_vertex(mouth_centre,mouth_width,mouth_shift);
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draw_vertices(lefteye_vert);
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draw_vertices(righteye_vert);
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draw_vertices(mouth_vert);
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if(strcmp(get(blink_t,'Running'),'off'))
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start(blink_t)
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end
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end
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function delete_timers(~,~)
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% alltimer = timerfindall('Parent',win);
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% stop(alltimer);
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% delete(alltimer);
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stop(update_t);
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delete(update_t);
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stop(blink_t);
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delete(blink_t);
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stop(mood_t);
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delete(mood_t);
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end
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function blank_function(~,~)
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end
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function set_blink(~,~)
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if ~blinking
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blinking = 1;
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stop(blink_t);
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set(blink_t,'StartDelay',0.1)
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else
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blinking = 0;
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stop(blink_t);
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set(blink_t,'StartDelay',round((rand(1)*1.9+0.1)*1000)/1000)
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end
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end
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function set_mood(~,~)
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moods = {'Happy','Neutral','Sad'};
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selected_mood = round(rand(1)*(length(moods)-1)+1);
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current_mood = moods{selected_mood};
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determine_mood_face();
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end
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%% Non Callback Functions
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function[eye_vertices] = calc_eye_vertex(centre,radius,brow_angles,bottom_angles)
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eye_top_vertices = cutoff_circle_vertice(centre,radius,brow_angles);
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eye_bottom_vertices = cutoff_circle_vertice(centre,radius,bottom_angles);
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eye_bottom_vertices = fliplr(eye_bottom_vertices);
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eye_bottom_vertices(2,:) = eye_bottom_vertices(2,:)- 2*(eye_bottom_vertices(2,:)-centre(2));
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eye_vertices = [eye_top_vertices eye_bottom_vertices];
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end
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function[mouth_vertices] = calc_mouth_vertex(centre,width,cen_y_offset)
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P0 = centre - [width;0];P2 = centre + [width;0];
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P1 = centre+[0;cen_y_offset];
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mouth_vertices = quad_beizer(P0,P1,P2);
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bot = quad_beizer(P0,P1-[0;0.1],P2);
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bot = fliplr(bot);
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mouth_vertices = [mouth_vertices bot];
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end
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function draw_vertices(vertices)
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patch(vertices(1,:),vertices(2,:),[1 1 1],'Parent',face_axes)
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end
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function [offset_pos] = pos_offset(ori_pos,angle,radius_limit)
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offset_pos = ori_pos+radius_limit*[cosd(angle);sind(angle)];
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end
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function[val] = approach(start_val,end_val,incre)
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val = start_val + (end_val - start_val)*incre;
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end
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function[X,Y]= get_mouse_pos()
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mpos = get(face_axes,'CurrentPoint');
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X = mpos(1,1);
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Y = mpos(1,2);
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end
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function[vertices] = cutoff_circle_vertice(centre,radius,end_angles)
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n_of_vertices = 7+1; %because need to reach 90 degrees
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left_increment = end_angles(1)/(n_of_vertices-1);
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right_increment = end_angles(2)/(n_of_vertices-1);
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vertices = zeros(2,n_of_vertices*2);
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for i = 1:n_of_vertices
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theta = 180 - left_increment*(i-1);
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vertices(1,i) = centre(1)+radius*cosd(theta);
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vertices(2,i) = centre(2)+radius*sind(theta);
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theta = 0 + right_increment*(i-1);
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vertices(1,end+1-i) = centre(1)+radius*cosd(theta);
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vertices(2,end+1-i) = centre(2)+radius*sind(theta);
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end
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end
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function[vertices] = quad_beizer(P0,P1,P2)
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t = 0:0.05:1;
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vertices = zeros(2,length(t));
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for n = 1:length(t)
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vertices(:,n) = power(1-t(n),2).*P0 + 2*(1-t(n))*t(n).*P1 + power(t(n),2).*P2;
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end
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end
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function determine_mood_face()
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switch(current_mood)
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case 'Happy'
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leftbrow_setangles = [90 90];
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leftbottom_setangles = [90 90];
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rightbrow_setangles = [90 90];
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rightbottom_setangles = [90 90];
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mouth_setshift = -0.5;
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case 'Neutral'
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leftbrow_setangles = [90 90];
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leftbottom_setangles = [90 90];
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rightbrow_setangles = [90 90];
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rightbottom_setangles = [90 90];
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mouth_setshift = 0;
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case 'Sad'
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leftbrow_setangles = [30 60];
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leftbottom_setangles = [90 90];
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rightbrow_setangles = [60 30];
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rightbottom_setangles = [90 90];
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mouth_setshift = 1;
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end
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end
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end
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