README.md

   1 # solVItaire
   2
   3 Play klondike and spider solitaire in your unicode terminal.
   4
   5 Supports `vi` style keybindings (hjkl), cursor keys and the mouse. Press `J` to
   6 'join' a well-suited pile to the cursor. `Space` locks in a selection, and
   7 `Return` pulls cards from the stack in spider solitaire. Piles can also be
   8 *directly addressed* by the number below them (or 8, 9, 0 for stack, waste and
   9 foundation in klondike).
  10 See `$PROGNAME -h` for details.
  11
  12 ## Details
  13
  14 For details and screenshots see the project homepage at
  15 **https://gir.st/sol.htm**
  16
  17 ## Makefile Options
  18
  19 By default the character set uses an `X` to for the 10 card. Compile with `make
  20 DECIMAL_TEN=1` to display the letters `10` instead.
  21
  22 ## License
  23
  24 You can use, study, share and improve this software under the terms of the GNU
  25 General Public License, version 3. Copyright 2019 Tobias Girstmair. For
  26 licensing details, see `LICENSE`.
  27
  28 <details><summary>
  29 <h2>TODO</h2>
  30 </summary>
  31
  32 ### P1
  33 <!-- * none! \o/-->
  34  * TODO FREECELL: autodetect possible moves (card selector choice dialog)
  35 ### P2
  36  * TODO: klondike/freecell: auto-move to foundation (optional)
  37  * TODO: suggest moves (`h` => hint)
  38  * TODO: cleanup: in `x2y()` functions there is a lot of replication and noise
  39          when calculating legal moves, top cards, etc.
  40 ### P3
  41  * TODO: visbell changes: instead of screen, flash active {cursor,card} {red,twice}?
  42  * TODO: differential drawing mode (at least for highlighting cards)
  43  * TODO: `.` command (repeat last action)
  44 ### P4
  45  * TODO: ellipsis overlap: if more than three cards in a row overlap, replace
  46          middle ones with an ellipsis
  47  * TODO: mouse mode improvements:
  48           - spider/freecell: detect how many cards to move to empty pile
  49             (must find exact position despite `extreme_overlap`)
  50  * TODO: scores, variants: draw 3, max. n overturns
  51  * TODO: vt220 mode (problems: charset, slow baudrate and no differential drawing mode)
  52  * TODO: ed(1) mode (solEDaire): playable on a line printer; ascii/ibm only?
  53
  54 ### DONE
  55  * DONE: use `#ifdef`s to differentiate games (sol, spider, ed-sol, ed-spider)
  56  * DONE: keyboard alias: twice same key == waste/pile -> foundation
  57  * DONE: spider keyboard: `<from><to>` stacks; 1-9,0=tableu, return=draw
  58  * DONE: spider: easy/medium difficulty: only deal 1/2 suits instead of 4 -> deal()
  59  * DONE: patience: allow taking from 0(foundation)
  60  * DONE: highlight `from` pile, so users can see at what input stage they are
  61  * DONE: make piles 0-indexed in klondike as well
  62  * DONE: duplicate card ♠A found in tableu: added check at start to monitor this
  63          Cannot reproduce, removed check
  64  * DONE: bugs in spider's t2t()
  65          * once segfaulted on large column
  66          * sometimes doesn't work (ERR when it should be OK)
  67          Cannot reproduce
  68  * DONE: some input functions are in `x2y()` -- move them to `get_cmd()` (req.
  69          for mouse, hjkl modes)
  70  * DONE: sigint, sigcont handler! atexit() to avoid inconsistent term state
  71  * DONE: hjkl keyboard mode
  72  * DONE: more vim mode keys (first/last tableu)
  73  * DONE: online (key-)help `?`, `-h`, `-v` (NOTE: implemented -h, rest deemed
  74          not usedul)
  75  * DONE: extreme overlapping: if we are printing a sequence or multiple face down
  76          cards, only print `.overlap` lines of the ends, and `1` line for the
  77          middle cards
  78  * DONE: in direct addressing 'up to' dialog: make return/space select the lowest/highest option
  79  * DONE: undo:
  80          - insert append_undo() in x2y() functions
  81          - to encode stack position we need to overload `f.u.n` as index.
  82            (similar for foundation: overload `f.u.n` as foundation id)
  83          - w2f(): have to encode both stock index and foundation id
  84                   don't want to add a struct field for this one case;
  85                   for the time being (i.e. forever) I'm ORing waste index and
  86                   (foundation id<<16). ugly but works :/
  87          - turning over cards: this needs to be encoded, because the card might
  88            be consecutive and there's no way to tell what its previous state was.
  89             * indicate that a card was turned (can be at most 1) by negating u.n
  90               pros: no wasted space (it's just a boolean value), negation pattern
  91                     already used for closed cards
  92               cons: dirty C hack, less obvious than in other places, no need to
  93                     conserve memory this tightly
  94  * DONE: screen size > stack height => rendering issues!
  95          as good as it's going to get, since we can't just not draw cards at all
  96  * DONE: 'join to here' command (should take longest chain available)
  97  * DONE: expose deal() seed for restarting the game
  98  * DONE: make portable (clang on FreeBSD)
  99          makefile's `$<` refuses to work if prequisite name != target name
 100          Fix:
 101              ln -s sol.c. spider.c
 102              sed -i 's/^spider: sol.c/spider: spider.c/' Makefile
 103  * DONE: escape sequences (for real cursor keys)
 104  * DONE: inverted moves (if A->B doesn't work, try B->A)
 105  * DONE:  - allow dragging the mouse
 106  * DONE: use `10` instead of `X` on card face (/u/Valley6660)
 107  * DONE: `:help` to show keyhelp (/u/Valley6660)
 108  * DONE: don't show cursor-highlight when inputting directly or with the mouse (/u/TooEarlyForMe)
 109  * DONE: remove sysmlink trickery and just call sol.c explicitly
 110  * DONE FREECELL: t2t() multi card move and accompanying pop_undo()
 111  * DONE:   - mouse (term2pile() cell encoding, set_mouse(), wait_mouse_up())
 112  * DONE FREECELL: don't allow selecting more cards than movable (`DO_HI, TOP_HI, cursor_{up,down}`)
 113  * DONE: differentiate foundation placeholder from cells ph. (freecell)
 114  * DONE FREECELL: join()
 115 </details>
 116
 117 ## Notes
 118
 119  - terminology:
 120 ```
 121     {stock}[waste]    [4*foundation]
 122
 123     []   {}   {}   {}   {}   {}   {}
 124          []  (tableu piles)  {}   {}
 125               []   {}   {}   {}   {}
 126                    []   {}   {}   {}
 127                         []   {}   {}
 128                              []   {}
 129                                   []
 130 ```