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|
implement Engine;
include "sys.m";
sys: Sys;
include "draw.m";
include "../spree.m";
spree: Spree;
Attributes, Range, Object, Clique, Member, rand: import spree;
include "allow.m";
allow: Allow;
include "cardlib.m";
cardlib: Cardlib;
publicstack: import cardlib;
VERT, HORIZ, TOP, BOTTOM, LEFT, RIGHT, Stackspec: import Cardlib;
clique: ref Clique;
PLAY, START, SAY, SNAP: con iota;
started := 0;
buttons: ref Object;
scores: ref Object;
deck: ref Object;
HAND, PILE: con iota;
hands := array[2] of ref Object;
piles := array[2] of ref Object;
publicspec: array of Stackspec;
privatespec := array[] of {
HAND => Stackspec(Cardlib->sPILE,
52,
0,
"hand",
HORIZ,
BOTTOM),
PILE => Stackspec(Cardlib->sPILE,
52,
0,
"pile",
HORIZ,
TOP),
};
oneplayed := 0; # true if only one member's put down a card so far
MINPLAYERS: con 2;
MAXPLAYERS: con 2;
clienttype(): string
{
return "cards";
}
init(g: ref Clique, srvmod: Spree): 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);
allow->add(SAY, nil, "say &");
cardlib = load Cardlib Cardlib->PATH;
if (cardlib == nil) {
sys->print("whist: cannot load %s: %r\n", Cardlib->PATH);
return "bad module";
}
cardlib->init(clique, spree);
deck = clique.newobject(nil, ~0, "stack");
cardlib->makepack(deck, (0, 52), 1);
cardlib->shuffle(deck);
buttons = clique.newobject(nil, ~0, "buttons");
scores = clique.newobject(nil, ~0, "scoretable");
return nil;
}
join(p: ref Member): string
{
sys->print("%s(%d) joining\n", p.name(), p.id);
if (!started && cardlib->nmembers() < MAXPLAYERS) {
(nil, err) := cardlib->join(p, -1);
if (err == nil) {
if (cardlib->nmembers() == MINPLAYERS) {
mkbutton("Start", "start");
allow->add(START, nil, "start");
}
} else
sys->print("error on join: %s\n", err);
}
return nil;
}
leave(p: ref Member)
{
cardlib->leave(p);
started == 0;
if (cardlib->nmembers() < MINPLAYERS) {
buttons.deletechildren((0, len buttons.children));
allow->del(START, nil);
}
}
command(p: ref Member, cmd: string): string
{
e := ref Sys->Exception;
if (sys->rescue("parse:*", e) == Sys->EXCEPTION) {
sys->rescued(Sys->ONCE, nil);
return e.name[6:];
}
(err, tag, toks) := allow->action(p, cmd);
if (err != nil)
return err;
case tag {
START =>
buttons.deletechildren((0, len buttons.children));
allow->del(START, nil);
allow->add(SNAP, nil, "snap");
mkbutton("Snap!", "snap");
cardlib->startclique(publicspec, privatespec);
for (i := 0; i < 2; i++) {
hands[i] = cardlib->info(i).stacks[HAND];
piles[i] = cardlib->info(i).stacks[PILE];
}
deck.transfer((0, 26), hands[0], 0);
deck.transfer((0, 26), hands[1], 0);
canplay(0);
canplay(1);
PLAY =>
# click index
ord := cardlib->order(p);
inf := cardlib->info(ord);
hand := hands[ord];
pile := piles[ord];
hand.transfer((len hand.children - 1, len hand.children), pile, len pile.children);
cardlib->setface(pile.children[len pile.children - 1], 1);
cantplay(ord);
oneplayed = !oneplayed;
if (!oneplayed || len hands[!ord].children == 0) {
for (i := 0; i < 2; i++)
if (len hands[i].children > 0)
canplay(i);
}
SNAP =>
# snap
ord := cardlib->order(p);
inf := cardlib->info(ord);
if (oneplayed) # XXX allow for case where one person has no cards.
return "must wait for two cards to be put down";
if (len piles[0].children == 0 || len piles[1].children == 0)
return "no cards";
c0 := cardlib->getcard(piles[0].children[len piles[0].children - 1]);
c1 := cardlib->getcard(piles[1].children[len piles[0].children - 1]);
if (c0.number != c1.number) {
remark(p.name() + " said snap wrongly!");
return "cards must be the same";
} else {
transferall(piles[!ord], piles[ord], len piles[ord].children);
flipstack(piles[ord]);
transferall(piles[ord], hands[ord], 0);
if (len hands[!ord].children == 0)
remark(p.name() + " has won!");
oneplayed = 0;
for (i := 0; i < 2; i++)
if (len hands[i].children > 0)
canplay(i);
else
cantplay(i);
}
SAY =>
clique.action("say member " + string p.id + ": '" + joinwords(tl toks) + "'", nil, nil, ~0);
}
return nil;
}
transferall(stack, into: ref Object, idx: int)
{
stack.transfer((0, len stack.children), into, idx);
}
flipstack(stack: ref Object)
{
for (i := 0; i < len stack.children; i++) {
card := stack.children[i];
cardlib->setface(card, ! int card.getattr("face"));
}
}
joinwords(v: list of string): string
{
if (v == nil)
return nil;
s := hd v;
for (v = tl v; v != nil; v = tl v)
s += " " + hd v;
return s;
}
canplay(ord: int)
{
inf := cardlib->info(ord);
allow->del(PLAY, inf.p);
allow->add(PLAY, inf.p, "click %d");
inf.stacks[HAND].setattr("actions", "click", 1<<inf.p.id);
}
cantplay(ord: int)
{
inf := cardlib->info(ord);
allow->del(PLAY, inf.p);
inf.stacks[HAND].setattr("actions", nil, 1<<inf.p.id);
}
member(ord: int): ref Member
{
return cardlib->info(ord).p;
}
remark(s: string)
{
clique.action("remark " + s, nil, nil, ~0);
}
mkbutton(text, cmd: string): ref Object
{
but := clique.newobject(buttons, ~0, "button");
but.setattr("text", text, ~0);
but.setattr("command", cmd, ~0);
return but;
}
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