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use crate::client::Client;
use common::{
comp::{
self,
group::{ChangeNotification, Group, GroupManager},
invite::{InviteKind, PendingInvites},
ChatType, Content, GroupManip,
},
event::GroupManipEvent,
uid::{IdMaps, Uid},
};
use common_net::msg::ServerGeneral;
use specs::{world::Entity, DispatcherBuilder, Entities, Read, ReadStorage, Write, WriteStorage};
use super::{event_dispatch, ServerEvent};
pub(super) fn register_event_systems(builder: &mut DispatcherBuilder) {
event_dispatch::<GroupManipEvent>(builder, &[]);
}
pub fn can_invite(
clients: &ReadStorage<'_, Client>,
groups: &ReadStorage<'_, Group>,
group_manager: &GroupManager,
pending_invites: &mut WriteStorage<'_, PendingInvites>,
max_group_size: u32,
inviter: Entity,
invitee: Entity,
) -> bool {
// Disallow inviting entity that is already in your group
let already_in_same_group = groups.get(inviter).map_or(false, |group| {
group_manager
.group_info(*group)
.map_or(false, |g| g.leader == inviter)
&& groups.get(invitee) == Some(group)
});
if already_in_same_group {
// Inform of failure
if let Some(client) = clients.get(inviter) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Invite failed, can't invite someone already in your group".to_string(),
),
));
}
return false;
}
// Check if group max size is already reached
// Adding the current number of pending invites
let group_size_limit_reached = groups
.get(inviter)
.copied()
.and_then(|group| {
// If entity is currently the leader of a full group then they can't invite
// anyone else
group_manager
.group_info(group)
.filter(|i| i.leader == inviter)
.map(|i| i.num_members)
})
.unwrap_or(1) as usize
+ pending_invites.get(inviter).map_or(0, |p| {
p.0.iter()
.filter(|(_, k, _)| *k == InviteKind::Group)
.count()
})
>= max_group_size as usize;
if group_size_limit_reached {
// Inform inviter that they have reached the group size limit
if let Some(client) = clients.get(inviter) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Invite failed, pending invites plus current group size have reached the \
group size limit"
.to_owned(),
),
));
}
return false;
}
true
}
pub fn update_map_markers<'a>(
map_markers: &ReadStorage<'a, comp::MapMarker>,
uids: &ReadStorage<'a, Uid>,
client: &Client,
change: &ChangeNotification<Entity>,
) {
use comp::group::ChangeNotification::*;
let send_update = |entity| {
if let (Some(map_marker), Some(uid)) = (map_markers.get(entity), uids.get(entity)) {
client.send_fallible(ServerGeneral::MapMarker(
comp::MapMarkerUpdate::GroupMember(
*uid,
comp::MapMarkerChange::Update(map_marker.0),
),
));
}
};
match change {
&Added(entity, _) => {
send_update(entity);
},
NewGroup { leader: _, members } => {
for (entity, _) in members {
send_update(*entity);
}
},
// Removed and NoGroup can be inferred by the client, NewLeader does not affect map markers
Removed(_) | NoGroup | NewLeader(_) => {},
}
}
impl ServerEvent for GroupManipEvent {
type SystemData<'a> = (
Entities<'a>,
Write<'a, GroupManager>,
Read<'a, IdMaps>,
WriteStorage<'a, Group>,
ReadStorage<'a, Client>,
ReadStorage<'a, Uid>,
ReadStorage<'a, comp::Alignment>,
ReadStorage<'a, comp::MapMarker>,
);
fn handle(
events: impl ExactSizeIterator<Item = Self>,
(entities, mut group_manager, id_maps, mut groups, clients, uids, alignments, map_markers): Self::SystemData<'_>,
) {
for GroupManipEvent(entity, manip) in events {
match manip {
GroupManip::Leave => {
group_manager.leave_group(
entity,
&mut groups,
&alignments,
&uids,
&entities,
&mut |entity, group_change| {
clients
.get(entity)
.and_then(|c| {
group_change
.try_map_ref(|e| uids.get(*e).copied())
.map(|g| (g, c))
})
.map(|(g, c)| {
update_map_markers(&map_markers, &uids, c, &group_change);
c.send_fallible(ServerGeneral::GroupUpdate(g));
});
},
);
},
GroupManip::Kick(uid) => {
let target = match id_maps.uid_entity(uid) {
Some(t) => t,
None => {
// Inform of failure
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Kick failed, target does not exist.".to_string(),
),
));
}
continue;
},
};
// Can't kick pet
if matches!(alignments.get(target), Some(comp::Alignment::Owned(owner)) if uids.get(target).map_or(true, |u| u != owner))
{
if let Some(general_stream) = clients.get(entity) {
general_stream.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain("Kick failed, you can't kick pets.".to_string()),
));
}
continue;
}
// Can't kick yourself
if uids.get(entity).map_or(false, |u| *u == uid) {
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain("Kick failed, you can't kick yourself.".to_string()),
));
}
continue;
}
// Make sure kicker is the group leader
match groups
.get(target)
.and_then(|group| group_manager.group_info(*group))
{
Some(info) if info.leader == entity => {
// Remove target from group
group_manager.leave_group(
target,
&mut groups,
&alignments,
&uids,
&entities,
&mut |entity, group_change| {
clients
.get(entity)
.and_then(|c| {
group_change
.try_map_ref(|e| uids.get(*e).copied())
.map(|g| (g, c))
})
.map(|(g, c)| {
update_map_markers(
&map_markers,
&uids,
c,
&group_change,
);
c.send_fallible(ServerGeneral::GroupUpdate(g));
});
},
);
// Tell them the have been kicked
if let Some(client) = clients.get(target) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain("You were removed from the group.".to_string()),
));
}
// Tell kicker that they were successful
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain("Player kicked.".to_string()),
));
}
},
Some(_) => {
// Inform kicker that they are not the leader
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Kick failed: You are not the leader of the target's \
group."
.to_string(),
),
));
}
},
None => {
// Inform kicker that the target is not in a group
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Kick failed: Your target is not in a group.".to_string(),
),
));
}
},
}
},
GroupManip::AssignLeader(uid) => {
let target = match id_maps.uid_entity(uid) {
Some(t) => t,
None => {
// Inform of failure
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Leadership transfer failed, target does not exist"
.to_string(),
),
));
}
continue;
},
};
// Make sure assigner is the group leader
match groups
.get(target)
.and_then(|group| group_manager.group_info(*group))
{
Some(info) if info.leader == entity => {
// Assign target as group leader
group_manager.assign_leader(
target,
&groups,
&entities,
&alignments,
&uids,
|entity, group_change| {
clients
.get(entity)
.and_then(|c| {
group_change
.try_map_ref(|e| uids.get(*e).copied())
.map(|g| (g, c))
})
.map(|(g, c)| {
update_map_markers(
&map_markers,
&uids,
c,
&group_change,
);
c.send_fallible(ServerGeneral::GroupUpdate(g));
});
},
);
// Tell them they are the leader
if let Some(client) = clients.get(target) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain("You are the group leader now.".to_string()),
));
}
// Tell the old leader that the transfer was succesful
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"You are no longer the group leader.".to_string(),
),
));
}
},
Some(_) => {
// Inform transferer that they are not the leader
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Transfer failed: You are not the leader of the target's \
group."
.to_string(),
),
));
}
},
None => {
// Inform transferer that the target is not in a group
if let Some(client) = clients.get(entity) {
client.send_fallible(ServerGeneral::server_msg(
ChatType::Meta,
Content::Plain(
"Transfer failed: Your target is not in a group."
.to_string(),
),
));
}
},
}
},
}
}
}
}