--- deliantra/server/lib/cf.pm	2006/08/28 14:05:24	1.51
+++ deliantra/server/lib/cf.pm	2006/08/30 08:28:33	1.56
@@ -107,17 +107,35 @@
 #############################################################################
 # "new" plug-in system
 
+=head3 EVENTS AND OBJECT ATTACHMENTS
+
+=over 4
+
 =item $object->attach ($attachment, key => $value...)
 
-Attach a pre-registered attachment to an object.
+=item $object->detach ($attachment)
+
+Attach/detach a pre-registered attachment to an object.
 
 =item $player->attach ($attachment, key => $value...)
 
-Attach a pre-registered attachment to a player.
+=item $player->detach ($attachment)
+
+Attach/detach a pre-registered attachment to a player.
+
+=item $map->attach ($attachment, key => $value...)
+
+=item $map->detach ($attachment)
 
-=item $map->attach ($attachment, key => $value...) # not yet persistent
+Attach/detach a pre-registered attachment to a map.
 
-Attach a pre-registered attachment to a map.
+=item $bool = $object->attached ($name)
+
+=item $bool = $player->attached ($name)
+
+=item $bool = $map->attached ($name)
+
+Checks wether the named attachment is currently attached to the object.
 
 =item cf::attach_global ...
 
@@ -176,6 +194,19 @@
 
 =item cf:register_attachment $name, ...
 
+Register an attachment by name through which objects can refer to this
+attachment.
+
+=item cf:register_player_attachment $name, ...
+
+Register an attachment by name through which players can refer to this
+attachment.
+
+=item cf:register_map_attachment $name, ...
+
+Register an attachment by name through which maps can refer to this
+attachment.
+
 =cut
 
 # the following variables are defined in .xs and must not be re-created
@@ -249,6 +280,8 @@
 sub _attach_attachment {
    my ($obj, $name, %arg) = @_;
 
+   return if exists $obj->{_attachment}{$name};
+
    my $res;
 
    if (my $attach = $attachment{$name}) {
@@ -270,23 +303,31 @@
    $res
 }
 
-sub cf::object::attach {
+*cf::object::attach =
+*cf::player::attach =
+*cf::map::attach = sub {
    my ($obj, $name, %arg) = @_;
 
    _attach_attachment $obj, $name, %arg;
-}
+};
 
-sub cf::player::attach {
-   my ($obj, $name, %arg) = @_;
+# all those should be optimised
+*cf::object::detach =
+*cf::player::detach =
+*cf::map::detach = sub {
+   my ($obj, $name) = @_;
 
-   _attach_attachment KLASS_PLAYER, $obj, $name, %arg;
-}
+   delete $obj->{_attachment}{$name};
+   reattach ($obj);
+};
 
-sub cf::map::attach {
-   my ($obj, $name, %arg) = @_;
+*cf::object::attached =
+*cf::player::attached =
+*cf::map::attached = sub {
+   my ($obj, $name) = @_;
 
-   _attach_attachment KLASS_MAP, $obj, $name, %arg;
-}
+   exists $obj->{_attachment}{$name}
+};
 
 sub attach_global {
    _attach @CB_GLOBAL, KLASS_GLOBAL, @_
@@ -317,6 +358,18 @@
    $attachment{$name} = [[KLASS_OBJECT, @_]];
 }
 
+sub register_player_attachment {
+   my $name = shift;
+
+   $attachment{$name} = [[KLASS_PLAYER, @_]];
+}
+
+sub register_map_attachment {
+   my $name = shift;
+
+   $attachment{$name} = [[KLASS_MAP, @_]];
+}
+
 our $override;
 our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
 
@@ -348,6 +401,46 @@
    0
 }
 
+=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
+
+=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
+
+=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
+
+=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
+
+Generate a global/object/player/map-specific event with the given arguments.
+
+This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
+removed in future versions), and there is no public API to access override
+results (if you must, access C<@cf::invoke_results> directly).
+
+=back
+
+=head2 methods valid for all pointers
+
+=over 4
+
+=item $object->valid
+
+=item $player->valid
+
+=item $map->valid
+
+Just because you have a perl object does not mean that the corresponding
+C-level object still exists. If you try to access an object that has no
+valid C counterpart anymore you get an exception at runtime. This method
+can be used to test for existence of the C object part without causing an
+exception.
+
+=back
+
+=cut
+
+*cf::object::valid =
+*cf::player::valid =
+*cf::map::valid = \&cf::_valid;
+
 #############################################################################
 # object support
 
@@ -674,13 +767,14 @@
 };
 
 # old style persistent data, TODO: remove #d#
-*cf::mapsupport::on_swapin =
-*cf::mapsupport::on_load = sub {
+*cf::mapsupport::on_swapin = sub {
    my ($map) = @_;
 
    my $path = $map->tmpname;
    $path = $map->path unless defined $path;
 
+   warn "$path.cfperl\n";#d#
+
    open my $fh, "<:raw", "$path.cfperl"
       or return; # no perl data