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use std::collections::HashMap;
use specs::{
World,
WorldExt,
Builder,
DispatcherBuilder,
Dispatcher,
Entity
};
use super::controls::Action;
use super::pos::Pos;
use super::components::Position;
use super::worldmessages::WorldMessage;
use super::resources::{
Size,
Output,
Input,
NewEntities
};
use super::systems::{
moving::Move,
clearcontrols::ClearControllers,
makefloor::MakeFloor,
controlinput::ControlInput,
view::View
};
use super::componentwrapper::ComponentWrapper;
use crate::encyclopedia::Encyclopedia;
use crate::template::Template;
use crate::roomtemplate::RoomTemplate;
pub struct Room<'a, 'b> {
world: World,
dispatcher: Dispatcher<'a, 'b>,
encyclopedia: Encyclopedia
}
impl <'a, 'b>Room<'a, 'b> {
pub fn new(encyclopedia: Encyclopedia) -> Room<'a, 'b> {
let mut world = World::new();
let mut dispatcher = DispatcherBuilder::new()
.with(ControlInput, "controlinput", &[])
.with(MakeFloor, "makefloor", &[])
.with(Move, "move", &["makefloor", "controlinput"])
.with(ClearControllers, "clearcontrollers", &["move"])
.with(View::default(), "view", &["move"])
.build();
dispatcher.setup(&mut world);
Room {
world,
dispatcher,
encyclopedia
}
}
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;
// todo: set 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.add_entity(template, Pos{x, y});
}
}
}
pub fn view(&self) -> HashMap<String, WorldMessage> {
self.world.fetch::<Output>().output.clone()
}
pub fn update(&mut self) {
self.dispatcher.dispatch(&mut self.world);
let templates = self.world.remove::<NewEntities>().unwrap_or(NewEntities::default()).templates;
self.world.insert(NewEntities::default());
for (pos, template) in templates{
if let Err(msg) = self.add_entity(&template, pos){
println!("failed to add entity {:?}: {}", template, msg);
}
}
self.world.maintain();
}
pub fn set_input(&mut self, actions: Vec<Action>){
self.world.fetch_mut::<Input>().actions = actions;
}
pub fn add_entity(&mut self, template: &Template, pos: Pos) -> Result<Entity, &'static str> {
let preentity = self.encyclopedia.construct(template)?;
Ok(self.add_complist(&preentity, pos))
}
//
pub fn add_complist(&mut self, template: &Vec<ComponentWrapper>, pos: Pos) -> Entity{
let mut builder = self.world.create_entity();
for comp in template {
builder = comp.build(builder);
}
builder.with(Position::new(pos)).build()
}
}
|
