ref: 02ac617541ca1a7bf82b1615fb5a58235469b5d3
dir: /appl/spree/engines/canfield.b/
implement Gatherengine;
include "sys.m";
sys: Sys;
include "draw.m";
include "sets.m";
All, None: import Sets;
include "../spree.m";
spree: Spree;
Attributes, Range, Object, Clique, Member: import spree;
include "allow.m";
allow: Allow;
include "cardlib.m";
cardlib: Cardlib;
Selection, Cmember, Card: import cardlib;
dTOP, dRIGHT, dLEFT, oDOWN,
aCENTRELEFT, aUPPERRIGHT,
EXPAND, FILLX, FILLY, Stackspec: import Cardlib;
include "../gather.m";
clique: ref Clique;
sevens: array of ref Object; # [7]
spare1, spare2: ref Object;
acepiles: array of ref Object; # [4]
top2botcount := 3;
top2bot: ref Object;
CLICK, TOP2BOT, REDEAL, SHOW: con iota;
Openspec := Stackspec(
"display", # style
19, # maxcards
0, # conceal
"" # title
);
Pilespec := Stackspec(
"pile", # style
19, # maxcards
0, # conceal
"pile" # title
);
Untitledpilespec := Stackspec(
"pile", # style
13, # maxcards
0, # conceal
"" # title
);
clienttype(): string
{
return "cards";
}
rank := array[] of {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
maxmembers(): int
{
return 1;
}
init(srvmod: Spree, g: ref Clique, nil: list of string, nil: int): string
{
sys = load Sys Sys->PATH;
clique = g;
spree = srvmod;
allow = load Allow Allow->PATH;
if (allow == nil) {
sys->print("whist: cannot load %s: %r\n", Allow->PATH);
return "bad module";
}
allow->init(spree, clique);
cardlib = load Cardlib Cardlib->PATH;
if (cardlib == nil) {
sys->print("whist: cannot load %s: %r\n", Cardlib->PATH);
return "bad module";
}
cardlib->init(spree, clique);
return nil;
}
propose(members: array of string): string
{
if (len members != 1)
return "one member only";
return nil;
}
start(members: array of ref Member, archived: int)
{
allow->add(SHOW, nil, "show");
if (archived) {
archiveobj := cardlib->unarchive();
sevens = cardlib->getarchivearray("sevens");
acepiles = cardlib->getarchivearray("acepiles");
spare1 = cardlib->getarchiveobj("spare1");
spare2 = cardlib->getarchiveobj("spare2");
top2bot = cardlib->getarchiveobj("top2bot");
top2botcount = int archiveobj.getattr("top2botcount");
allow->unarchive(archiveobj);
archiveobj.delete();
} else {
p := members[0];
Cmember.join(p, -1).layout.lay.setvisibility(All);
startclique();
allow->add(CLICK, p, "click %o %d");
allow->add(TOP2BOT, p, "top2bot");
allow->add(REDEAL, p, "redeal");
}
}
archive()
{
archiveobj := cardlib->archive();
cardlib->archivearray(sevens, "sevens");
cardlib->archivearray(acepiles, "acepiles");
cardlib->setarchivename(spare1, "spare1");
cardlib->setarchivename(spare2, "spare2");
cardlib->setarchivename(top2bot, "top2bot");
archiveobj.setattr("top2botcount", string top2botcount, None);
allow->archive(archiveobj);
}
command(p: ref Member, cmd: string): string
{
(err, tag, toks) := allow->action(p, cmd);
if (err != nil)
return err;
cp := Cmember.find(p);
if (cp == nil)
return "you are not playing";
case tag {
CLICK =>
# click stack index
stack := clique.objects[int hd tl toks];
nc := len stack.children;
idx := int hd tl tl toks;
sel := cp.sel;
stype := stack.getattr("type");
if (sel.isempty() || sel.stack == stack) {
if (nc == 0 && stype == "spare1") {
cardlib->flip(spare2);
spare2.transfer((0, len spare2.children), spare1, 0);
return nil;
}
if (idx < 0 || idx >= len stack.children)
return "invalid index";
case stype {
"spare2" or
"open" =>
select(cp, stack, (idx, nc));
"spare1" =>
if ((n := nc) > 3)
n = 3;
for (i := 0; i < n; i++) {
cardlib->setface(stack.children[nc - 1], 1);
stack.transfer((nc - 1, nc), spare2, -1);
nc--;
}
* =>
return "you can't move cards from there";
}
} else {
from := sel.stack;
case stype {
"acepile" =>
if (sel.r.end != sel.r.start + 1)
return "only one card at a time!";
card := getcard(sel.stack.children[sel.r.start]);
if (nc == 0) {
if (card.number != 0)
return "aces only";
} else {
top := getcard(stack.children[nc - 1]);
if (card.number != top.number + 1)
return "out of sequence";
if (card.suit != top.suit)
return "wrong suit";
}
sel.transfer(stack, -1);
"open" =>
c := getcard(sel.stack.children[sel.r.start]);
col := !isred(c);
n := c.number + 1;
for (i := sel.r.start; i < sel.r.end; i++) {
c2 := getcard(sel.stack.children[i]);
if (c2.face == 0)
return "cannot move face-down cards";
if (isred(c2) == col)
return "bad colour sequence";
if (c2.number != n - 1)
return "bad number sequence";
n = c2.number;
col = isred(c2);
}
if (nc != 0) {
c2 := getcard(stack.children[nc - 1]);
if (isred(c2) == isred(c) || c2.number != c.number + 1)
return "invalid move";
} else if (c.number != 12)
return "only kings allowed there";
sel.transfer(stack, -1);
* =>
return "can't move there";
}
if (from.getattr("type") == "open" && len from.children > 0)
cardlib->setface(from.children[len from.children - 1], 1);
}
TOP2BOT =>
if (len spare2.children != 0)
return "can only top-to-bottom on the whole pile";
if (top2botcount <= 0)
return "too late";
nc := len spare1.children;
if (nc > 0) {
spare1.transfer((nc - 1, nc), spare1, 0);
top2botcount--;
settop2bottext();
}
REDEAL =>
clearup();
cardlib->shuffle(spare1);
deal();
top2botcount = 3;
settop2bottext();
SHOW =>
clique.show(nil);
}
return nil;
}
readfile(nil: int, nil: big, nil: int): array of byte
{
return nil;
}
settop2bottext()
{
top2bot.setattr("text",
sys->sprint("top to bottom (%d left)", top2botcount), All);
}
startclique()
{
addlayobj, addlayframe: import cardlib;
entry := clique.newobject(nil, All, "widget entry");
entry.setattr("command", "say", All);
addlayobj("entry", nil, nil, dTOP|FILLX, entry);
addlayframe("arena", nil, nil, dTOP|EXPAND|FILLX|FILLY, dTOP);
addlayframe("top", "arena", nil, dTOP|EXPAND, dTOP);
addlayframe("mid", "arena", nil, dTOP|EXPAND, dTOP);
addlayframe("bot", "arena", nil, dTOP|EXPAND, dTOP);
sevens = array[7] of {* => newstack(nil, Openspec, "open")};
acepiles = array[4] of {* => newstack(nil, Untitledpilespec, "acepile")};
spare1 = newstack(nil, Untitledpilespec, "spare1");
spare2 = newstack(nil, Untitledpilespec, "spare2");
cardlib->makecards(spare1, (0, 13), nil);
for (i := 0; i < 4; i++)
addlayobj(nil, "top", nil, dRIGHT, acepiles[i]);
for (i = 0; i < len sevens; i++)
addlayobj(nil, "mid", nil, dLEFT|oDOWN|EXPAND, sevens[i]);
addlayframe("buts", "bot", nil, dLEFT|EXPAND|aUPPERRIGHT, dTOP);
top2bot = newbutton("top2bot", "top to bottom");
addlayobj(nil, "buts", nil, dTOP, top2bot);
addlayobj(nil, "buts", nil, dTOP, newbutton("redeal", "redeal"));
addlayobj(nil, "bot", nil, dLEFT, spare1);
addlayobj(nil, "bot", nil, dLEFT|EXPAND|aCENTRELEFT, spare2);
deal();
settop2bottext();
}
clearup()
{
for (i := 0; i < len sevens; i++)
cardlib->discard(sevens[i], spare1, 1);
for (i = 0; i < len acepiles; i++)
cardlib->discard(acepiles[i], spare1, 1);
cardlib->discard(spare2, spare1, 1);
}
deal()
{
cardlib->shuffle(spare1);
for (i := 0; i < 7; i++) {
spare1.transfer((0, i + 1), sevens[i], 0);
cardlib->setface(sevens[i].children[i], 1);
}
}
newbutton(cmd, text: string): ref Object
{
but := clique.newobject(nil, All, "widget button");
but.setattr("command", cmd, All);
but.setattr("text", text, All);
return but;
}
newstack(parent: ref Object, spec: Stackspec, stype: string): ref Object
{
stack := cardlib->newstack(parent, nil, spec);
stack.setattr("type", stype, None);
stack.setattr("actions", "click", All);
return stack;
}
getcard(card: ref Object): Card
{
c := cardlib->getcard(card);
c.number = rank[c.number];
return c;
}
isred(c: Card): int
{
return c.suit == Cardlib->DIAMONDS || c.suit == Cardlib->HEARTS;
}
select(cp: ref Cmember, stack: ref Object, r: Range)
{
if (cp.sel.isempty()) {
cp.sel.set(stack);
cp.sel.setrange(r);
} else {
if (cp.sel.r.start == r.start && cp.sel.r.end == r.end)
cp.sel.set(nil);
else
cp.sel.setrange(r);
}
}