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use std::collections::HashMap;
use specs::{
World,
WorldExt,
DispatcherBuilder,
Dispatcher,
Join
};
use super::controls::Action;
use super::worldmessages::WorldMessage;
use super::resources::{
Size,
Output,
Input,
NewEntities,
Spawn
};
use super::systems::{
moving::Move,
registernew::RegisterNew,
controlinput::ControlInput,
view::View,
remove::Remove,
create::Create,
take::Take
};
use crate::components::{Position, Serialise};
use crate::encyclopedia::Encyclopedia;
use crate::roomtemplate::RoomTemplate;
use crate::savestate::SaveState;
use crate::template::Template;
use crate::{Pos, PlayerId};
pub struct Room<'a, 'b> {
world: World,
dispatcher: Dispatcher<'a, 'b>
}
impl <'a, 'b>Room<'a, 'b> {
pub fn new(encyclopedia: Encyclopedia) -> Room<'a, 'b> {
let mut world = World::new();
world.insert(NewEntities{
templates: Vec::new(),
encyclopedia
});
world.register::<Serialise>();
let mut dispatcher = DispatcherBuilder::new()
.with(RegisterNew::default(), "registernew", &[])
.with(ControlInput, "controlinput", &[])
.with(Take, "take", &["controlinput"])
.with(Move, "move", &["registernew", "controlinput"])
.with(View::default(), "view", &["move"])
.with(Create, "create", &["view", "controlinput"])
.with(Remove, "remove", &["view", "move"])
.build();
dispatcher.setup(&mut world);
Room {
world,
dispatcher
}
}
pub fn load_from_template(&mut self, template: &RoomTemplate) {
let (width, height) = template.size;
self.world.fetch_mut::<Size>().width = width;
self.world.fetch_mut::<Size>().height = height;
self.world.fetch_mut::<Spawn>().pos = template.spawn;
for (idx, templates) in template.field.iter().enumerate() {
let x = (idx as i64) % width;
let y = (idx as i64) / width;
for template in templates {
self.create_entity(template.clone().unsaved(), Pos{x, y});
}
}
}
pub fn view(&self) -> HashMap<PlayerId, WorldMessage> {
self.world.fetch::<Output>().output.clone()
}
pub fn update(&mut self) {
self.dispatcher.dispatch(&self.world);
self.world.maintain();
}
pub fn set_input(&mut self, actions: Vec<Action>){
self.world.fetch_mut::<Input>().actions = actions;
}
pub fn save(&self) -> SaveState {
let positions = self.world.read_component::<Position>();
let serialisers = self.world.write_component::<Serialise>();
let mut state = SaveState::new();
for (pos, serialiser) in (&positions, &serialisers).join() {
state.changes.entry(pos.pos).or_insert(Vec::new()).push(serialiser.template.clone());
}
state
}
pub fn load_saved(&mut self, state: &SaveState) {
for (pos, templates) in state.changes.iter() {
for template in templates {
self.create_entity(template.clone(), *pos);
}
}
}
fn create_entity(&mut self, template: Template, pos: Pos){
self.world.fetch_mut::<NewEntities>().templates.push((pos, template));
}
}
|
