74 lines
2.6 KiB
Rust
74 lines
2.6 KiB
Rust
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use specs::{Entities, Join, ReadStorage, System, Write};
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use std::collections::HashMap;
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use crate::{
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audio::AudioStore,
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components::*,
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events::{BoxPlacedOnSpot, EntityMoved, Event},
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resources::EventQueue,
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};
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pub struct EventSystem {}
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impl<'a> System<'a> for EventSystem {
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// Data
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type SystemData = (
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Write<'a, EventQueue>,
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Write<'a, AudioStore>,
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Entities<'a>,
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ReadStorage<'a, Box>,
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ReadStorage<'a, BoxSpot>,
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ReadStorage<'a, Position>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (mut event_queue, mut audio_store, entities, boxes, box_spots, positions) = data;
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let mut new_events = Vec::new();
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for event in event_queue.events.drain(..) {
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println!("New event: {:?}", event);
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match event {
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Event::PlayerHistObstacle => {
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// play sound here
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audio_store.play_sound(&"wall".to_string());
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}
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Event::EntityMoved(EntityMoved { id }) => {
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// An entity was just moved, check if it was a box and fire
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// more events if it's been moved on a spot.
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if let Some(the_box) = boxes.get(entities.entity(id)) {
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let box_spots_with_positions: HashMap<(u8, u8), &BoxSpot> = (&box_spots, &positions)
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.join()
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.map(|t| ((t.1.x, t.1.y), t.0))
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.collect();
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if let Some(box_position) = positions.get(entities.entity(id)) {
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// Check if there is a spot on this position, and if there
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// is, if it's the correct or incorrect type
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if let Some(box_spot) = box_spots_with_positions.get(&(box_position.x, box_position.y)) {
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new_events.push(Event::BoxPlacedOnSpot(BoxPlacedOnSpot {
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is_correct_spot: (box_spot.color == the_box.color),
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}));
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}
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}
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}
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}
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Event::BoxPlacedOnSpot(BoxPlacedOnSpot { is_correct_spot }) => {
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// play sound here
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let sound = if is_correct_spot {
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"correct"
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} else {
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"inncorrect"
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};
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audio_store.play_sound(&sound.to_string())
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}
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}
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}
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event_queue.events.append(&mut new_events);
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}
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}
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