Section - Finding the Next Task


To decide which task is next task in (problem - a puzzle):
    if problem is sequential:
        if puzzle-testing all, say "(checking sequential puzzle [problem])";
        repeat with req running through things required by problem:
            if req is a task and req is unsolved:
[ say "(**deciding on [req]**)";]
                decide on req;
            otherwise if req is a puzzle and req is unsolved:
[ say "(**deciding on next task in [req]**)";]
                decide on next task in req;
    otherwise: [problem is not sequential ]
        if puzzle-testing all, say "(checking not sequential puzzle [problem])";
        unless saved endeavor is nothing: [problem is not sequential & something it requires is our saved endeavor.]
[ say "(saved endeavor: [saved endeavor])";]
            let tmptask be saved endeavor;
            unless problem is tmptask:
                while tmptask is not required by problem:
                    now tmptask is requiree of tmptask;
[ say "(**[tmptask]**)";]
            if tmptask is a task:
[ say "**tmptask deciding on [tmptask]**";]
                decide on tmptask;
            otherwise if problem is not tmptask:
[ say "**tmptask deciding on next task in [tmptask]**";]
                decide on next task in tmptask;
[ say "**made it this far**";]
        [If we've made it this far, we need to choose a new thing to do.]
        if puzzle-testing inferences, say "(no saved endeavor: looking for recent actions/moves related to [problem])";
        scour recent input for puzzle suggestions;
        let candidate be the best choice of the ranked puzzles under problem;
        if puzzle-testing inferences, say "(choosing [candidate])";
        [If we've ended up with a task, we're solved; otherwise save our progress and recurse.]
        if candidate is a task and candidate is unsolved:
            now saved endeavor is candidate;
            decide on candidate;
        otherwise if candidate is a puzzle and ( candidate requires something unsolved or candidate requires something unsolved ) :
            now saved endeavor is nothing;
            now saved endeavor is next task in candidate;
            decide on saved endeavor.