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JSONWriter.m
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JSONWriter.m
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%% JSON WRITER FOR ROCKET COMMAND SEQUENCING
% Prompt user to fill fields for state commands until done entering
% There are 3 fields, one of which contains 7 sub-fields
% { <numID>: {
% "Name": <name>,
% "Duration": <duration>,
% "State": {
% "FUEL_Press": <bool>,
% "LOX_Press": <bool>,
% "FUEL_Vent": <bool>,
% "LOX_Vent": <bool>,
% "MAIN": <bool>,
% "FUEL_Purge": <bool>,
% "LOX_Purge": <bool>
% }
% }, ...
% CurrentSequenceStep
clc, clear
% Start the loop
ID = [];
loopControl = true;
n = 1;
FullSequence = [];
while loopControl == true
% Prompts the user
fprintf("Creating a new state in the sequence...\nYou may discard at end of entry...\n")
% Ask for the state name
CurrentSequenceStep.Name = input( ...
"State name? :", "s" );
% Ask for the state duration
CurrentSequenceStep.Duration = input ( ...
"State duration? :", "s" );
% Ask for FUEL_Press desired state
state = '';
while ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
prompt = fprintf("FUEL_Press is? ('OPEN'/'open'/'CLOSED'/'closed') :");
state = input ( "", "s" );
CurrentSequenceStep.State.FUEL_Press = state;
if ~strcmp(state,{'OPEN','open','CLOSED','closed'})
fprintf(repmat('\b', 1, (prompt+length(state)+1)));
end
end
% Ask for LOX_Press desired state
state = '';
while ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
prompt = fprintf("LOX_Press is? ('OPEN'/'open'/'CLOSED'/'closed') :");
state = input ( "", "s" );
CurrentSequenceStep.State.LOX_Press = state;
if ~strcmp(state,{'OPEN','open','CLOSED','closed'})
fprintf(repmat('\b', 1, (prompt+length(state)+1)));
end
end
% Ask for FUEL_Vent desired state
state = '';
while ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
prompt = fprintf("FUEL_Vent is? ('OPEN'/'open'/'CLOSED'/'closed') :");
state = input ( "", "s" );
CurrentSequenceStep.State.FUEL_Vent = state;
if ~strcmp(state,{'OPEN','open','CLOSED','closed'})
fprintf(repmat('\b', 1, (prompt+length(state)+1)));
end
end
% Ask for LOX_Vent desired state
state = '';
while ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
prompt = fprintf("LOX_Vent is? ('OPEN'/'open'/'CLOSED'/'closed') :");
state = input ( "", "s" );
CurrentSequenceStep.State.LOX_Vent = state;
if ~strcmp(state,{'OPEN','open','CLOSED','closed'})
fprintf(repmat('\b', 1, (prompt+length(state)+1)));
end
end
% Ask for MAIN desired state
state = '';
while ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
prompt = fprintf("MAIN is? ('OPEN'/'open'/'CLOSED'/'closed') :");
state = input ( "", "s" );
CurrentSequenceStep.State.MAIN = state;
if ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
fprintf(repmat('\b', 1, (prompt+length(state)+1)));
end
end
% Ask for FUEL_Purge desired state
state = '';
while ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
prompt = fprintf("FUEL_Purge is? ('OPEN'/'open'/'CLOSED'/'closed') :");
state = input ( "", "s" );
CurrentSequenceStep.State.FUEL_Purge = state;
if ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
fprintf(repmat('\b', 1, (prompt+length(state)+1)));
end
end
% Ask for LOX_Purge desired state
state = '';
while ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
prompt = fprintf("LOX_Purge is? ('OPEN'/'open'/'CLOSED'/'closed') :");
state = input ( "", "s" );
CurrentSequenceStep.State.LOX_Purge = state;
if ~any(strcmp(state,{'OPEN','open','CLOSED','closed'}))
fprintf(repmat('\b', 1, (prompt+length(state)+1)));
end
end
% Build the struct
ID = [ID sprintf("x%d",n)];
FullSequence = [FullSequence CurrentSequenceStep];
n = n + 1;
% Ask if finished
request = '';
while ~any(strcmp(request,{'Y','y','N','n'}))
prompt = fprintf("Make another entry in the sequence? ('Y'/'y'/'N'/'n') :");
request = input ( "", "s" );
if ~any(strcmp(request,{'Y','y','N','n'}))
fprintf(repmat('\b',1, (prompt+length(request)+1)));
end
end
% If done, break the loop
if any(strcmp(request,{'N','n'}))
disp('Breaking...')
loopControl = false;
else
disp('Loop')
end
end
% Convert the entries from strings to the proper types
for j = 1:length(ID)
% Fix duration string to int
FullSequence(j).Duration = str2double(FullSequence(j).Duration);
% Fix the state strings to booleans
if any(strcmp(FullSequence(j).State.FUEL_Press,{'OPEN','open'}))
FullSequence(j).State.FUEL_Press = true;
else
FullSequence(j).State.FUEL_Press = false;
end
if any(strcmp(FullSequence(j).State.LOX_Press,{'OPEN','open'}))
FullSequence(j).State.LOX_Press = true;
else
FullSequence(j).State.LOX_Press = false;
end
if any(strcmp(FullSequence(j).State.FUEL_Vent,{'CLOSED','closed'}))
FullSequence(j).State.FUEL_Vent = true;
else
FullSequence(j).State.FUEL_Vent = false;
end
if any(strcmp(FullSequence(j).State.LOX_Vent,{'CLOSED','closed'}))
FullSequence(j).State.LOX_Vent = true;
else
FullSequence(j).State.LOX_Vent = false;
end
if any(strcmp(FullSequence(j).State.MAIN,{'OPEN','open'}))
FullSequence(j).State.MAIN = true;
else
FullSequence(j).State.MAIN = false;
end
if any(strcmp(FullSequence(j).State.FUEL_Purge,{'OPEN','open'}))
FullSequence(j).State.FUEL_Purge = true;
else
FullSequence(j).State.FUEL_Purge = false;
end
if any(strcmp(FullSequence(j).State.LOX_Purge,{'OPEN','open'}))
FullSequence(j).State.LOX_Purge = true;
else
FullSequence(j).State.LOX_Purge = false;
end
end
% Label each state
for k = 1:length(ID)
% TFW Dynamic variables is the only reasonable answer
LabelSequence.(ID(k)) = FullSequence(k);
end
json = jsonencode(LabelSequence, PrettyPrint=true);
disp(json)
fileName = input("Save filename as:","s");
fid = fopen(fileName, 'w');
fprintf(fid,json);