blackout/src/exploration.rs

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use std::error::Error;
use bevy::prelude::*;
use bevy_input_actionmap::InputMap;
use bevy_tts::Tts;
use derive_more::{Deref, DerefMut};
use mapgen::TileType;
use crate::{
core::{Coordinates, Player, PointLike},
error::error_handler,
map::Map,
pathfinding::Destination,
visibility::{RevealedTiles, Viewshed, VisibleTiles},
};
#[derive(Clone, Copy, Debug, Default, PartialEq, Reflect)]
#[reflect(Component)]
pub struct ExplorationFocused;
#[allow(dead_code)]
#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd, Reflect)]
pub enum ExplorationType {
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Portal = 0,
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Item = 1,
Character = 2,
Ally = 3,
Enemy = 4,
}
// Doesn't make sense to create from a `String`.
#[allow(clippy::from_over_into)]
impl Into<String> for ExplorationType {
fn into(self) -> String {
match self {
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ExplorationType::Portal => "Portal".into(),
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ExplorationType::Item => "Item".into(),
ExplorationType::Character => "Character".into(),
ExplorationType::Ally => "Ally".into(),
ExplorationType::Enemy => "Enemy".into(),
}
}
}
// Likewise.
#[allow(clippy::from_over_into)]
impl Into<&str> for ExplorationType {
fn into(self) -> &'static str {
match self {
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ExplorationType::Portal => "exit",
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ExplorationType::Item => "item",
ExplorationType::Character => "character",
ExplorationType::Ally => "ally",
ExplorationType::Enemy => "enemy",
}
}
}
#[derive(Clone, Copy, Debug, Default, Deref, DerefMut, Reflect)]
#[reflect(Component)]
pub struct Exploring(pub (f32, f32));
impl_pointlike_for_tuple_component!(Exploring);
#[derive(Clone, Debug, Default, Deref, DerefMut)]
pub struct FocusedExplorationType(pub Option<ExplorationType>);
#[derive(Clone, Copy, Debug, Default, Reflect)]
#[reflect(Component)]
pub struct Mappable;
pub const ACTION_EXPLORE_FORWARD: &str = "explore_forward";
pub const ACTION_EXPLORE_BACKWARD: &str = "explore_backward";
pub const ACTION_EXPLORE_LEFT: &str = "explore_left";
pub const ACTION_EXPLORE_RIGHT: &str = "explore_right";
pub const ACTION_EXPLORE_FOCUS_NEXT: &str = "explore_focus_next";
pub const ACTION_EXPLORE_FOCUS_PREV: &str = "explore_focus_prev";
pub const ACTION_EXPLORE_SELECT_NEXT_TYPE: &str = "explore_select_next_type";
pub const ACTION_EXPLORE_SELECT_PREV_TYPE: &str = "explore_select_prev_type";
pub const ACTION_NAVIGATE_TO_EXPLORED: &str = "navigate_to";
fn exploration_type_change(
mut tts: ResMut<Tts>,
input: Res<InputMap<String>>,
mut explorers: Query<(&Player, &Viewshed, &mut FocusedExplorationType)>,
features: Query<(&Coordinates, &ExplorationType)>,
) -> Result<(), Box<dyn Error>> {
let changed = input.just_active(ACTION_EXPLORE_SELECT_NEXT_TYPE)
|| input.just_active(ACTION_EXPLORE_SELECT_PREV_TYPE);
if !changed {
return Ok(());
}
for (_, viewshed, mut focused) in explorers.iter_mut() {
let mut types: Vec<ExplorationType> = vec![];
for (coordinates, t) in features.iter() {
let (x, y) = **coordinates;
let x = x as i32;
let y = y as i32;
if viewshed.visible.contains(&(x, y)) {
types.push(*t);
}
}
types.sort();
types.dedup();
if types.is_empty() {
tts.speak("Nothing visible.", true)?;
} else if input.just_active(ACTION_EXPLORE_SELECT_PREV_TYPE) {
if let Some(t) = &focused.0 {
if let Some(i) = types.iter().position(|v| *v == *t) {
if i == 0 {
focused.0 = None;
} else {
let t = &types[i - 1];
focused.0 = Some(*t);
}
} else {
let t = types.last().unwrap();
focused.0 = Some(*t);
}
} else {
let t = types.last().unwrap();
focused.0 = Some(*t);
}
} else if input.just_active(ACTION_EXPLORE_SELECT_NEXT_TYPE) {
if let Some(t) = &focused.0 {
if let Some(i) = types.iter().position(|v| *v == *t) {
if i == types.len() - 1 {
focused.0 = None;
} else {
let t = &types[i + 1];
focused.0 = Some(*t);
}
} else {
let t = types.first().unwrap();
focused.0 = Some(*t);
}
} else {
let t = types.first().unwrap();
focused.0 = Some(*t)
}
}
}
Ok(())
}
fn exploration_type_focus(
mut commands: Commands,
input: Res<InputMap<String>>,
mut tts: ResMut<Tts>,
explorers: Query<(
Entity,
&Player,
&Viewshed,
&FocusedExplorationType,
Option<&Exploring>,
)>,
features: Query<(&Coordinates, &ExplorationType)>,
) -> Result<(), Box<dyn Error>> {
let changed = input.just_active(ACTION_EXPLORE_FOCUS_NEXT)
|| input.just_active(ACTION_EXPLORE_FOCUS_PREV);
if !changed {
return Ok(());
}
for (entity, _, viewshed, focused, exploring) in explorers.iter() {
let mut features = features
.iter()
.filter(|(coordinates, _)| {
let (x, y) = ***coordinates;
let x = x as i32;
let y = y as i32;
viewshed.visible.contains(&(x, y))
})
.collect::<Vec<(&Coordinates, &ExplorationType)>>();
features.sort_by(|(c1, _), (c2, _)| c1.partial_cmp(c2).unwrap());
if let Some(focused) = &focused.0 {
features.retain(|(_, t)| **t == *focused);
}
if features.is_empty() {
tts.speak("Nothing visible.", true)?;
} else {
let mut target: Option<&(&Coordinates, &ExplorationType)> = None;
if input.just_active(ACTION_EXPLORE_FOCUS_NEXT) {
if let Some(exploring) = exploring {
target = features.iter().find(|(c, _)| ***c > **exploring);
if target.is_none() {
target = features.first();
}
} else {
target = features.first();
}
} else if input.just_active(ACTION_EXPLORE_FOCUS_PREV) {
if let Some(exploring) = exploring {
features.reverse();
target = features.iter().find(|(c, _)| ***c < **exploring);
if target.is_none() {
target = features.first();
}
} else {
target = features.last();
}
}
if let Some((coordinates, _)) = target {
commands.entity(entity).insert(Exploring(***coordinates));
}
}
}
Ok(())
}
fn exploration_type_changed_announcement(
mut tts: ResMut<Tts>,
focused: Query<
(
&FocusedExplorationType,
ChangeTrackers<FocusedExplorationType>,
),
Changed<FocusedExplorationType>,
>,
) -> Result<(), Box<dyn Error>> {
for (focused, changed) in focused.iter() {
if changed.is_added() {
return Ok(());
}
match &focused.0 {
Some(v) => {
let v: String = (*v).into();
tts.speak(v, true)?;
}
None => {
tts.speak("Everything", true)?;
}
};
}
Ok(())
}
fn exploration_focus(
mut commands: Commands,
input: Res<InputMap<String>>,
map: Query<&Map>,
explorers: Query<(Entity, &Player, &Coordinates, Option<&Exploring>)>,
) {
for map in map.iter() {
for (entity, _, coordinates, exploring) in explorers.iter() {
let coordinates = **coordinates;
let coordinates = (coordinates.0.floor(), coordinates.1.floor());
let mut exploring = if let Some(exploring) = exploring {
**exploring
} else {
coordinates
};
let orig = exploring;
if input.just_active(ACTION_EXPLORE_FORWARD) {
exploring.1 += 1.;
} else if input.just_active(ACTION_EXPLORE_BACKWARD) {
exploring.1 -= 1.;
} else if input.just_active(ACTION_EXPLORE_LEFT) {
exploring.0 -= 1.;
} else if input.just_active(ACTION_EXPLORE_RIGHT) {
exploring.0 += 1.;
}
if orig != exploring
&& exploring.0 >= 0.
&& exploring.0 < map.width() as f32
&& exploring.1 >= 0.
&& exploring.1 < map.height() as f32
{
commands.entity(entity).insert(Exploring(exploring));
}
}
}
}
fn navigate_to_explored(
mut commands: Commands,
input: Res<InputMap<String>>,
map: Query<(&Map, &RevealedTiles)>,
explorers: Query<(Entity, &Exploring)>,
) {
for (entity, exploring) in explorers.iter() {
for (map, revealed_tiles) in map.iter() {
let point = **exploring;
let idx = point.to_index(map.width());
let known = revealed_tiles[idx];
if input.just_active(ACTION_NAVIGATE_TO_EXPLORED) && known {
commands
.entity(entity)
.insert(Destination((point.x_i32(), point.y_i32())));
}
}
}
}
fn exploration_changed_announcement(
mut commands: Commands,
mut tts: ResMut<Tts>,
map: Query<(&Map, &RevealedTiles, &VisibleTiles)>,
explorers: Query<(&Coordinates, &Exploring), Changed<Exploring>>,
focused: Query<(Entity, &ExplorationFocused)>,
names: Query<&Name>,
types: Query<&ExplorationType>,
mappables: Query<&Mappable>,
) -> Result<(), Box<dyn Error>> {
for (coordinates, exploring) in explorers.iter() {
let coordinates = **coordinates;
let coordinates = (coordinates.0.floor(), coordinates.1.floor());
for (map, revealed_tiles, visible_tiles) in map.iter() {
let point = **exploring;
let idx = point.to_index(map.width());
let known = revealed_tiles[idx];
let visible = visible_tiles[idx];
let fog_of_war = known && !visible;
let description = if known {
let mut tokens: Vec<&str> = vec![];
for (entity, _) in focused.iter() {
commands.entity(entity).remove::<ExplorationFocused>();
}
for entity in &map.entities[idx] {
commands
.entity(*entity)
.insert(ExplorationFocused::default());
if visible || mappables.get(*entity).is_ok() {
if let Ok(name) = names.get(*entity) {
tokens.push(name.as_str());
}
if tokens.is_empty() {
if let Ok(t) = types.get(*entity) {
tokens.push((*t).into());
}
}
}
}
if tokens.is_empty() {
match map.base.tiles[idx] {
TileType::Floor => "Floor".to_string(),
TileType::Wall => "Wall".to_string(),
}
} else {
tokens.join(": ")
}
} else {
"Unknown".to_string()
};
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let mut tokens: Vec<String> = vec![coordinates.direction_and_distance(exploring, None)];
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if fog_of_war {
tokens.push("in the fog of war".into());
}
tts.speak(format!("{}: {}", description, tokens.join(", ")), true)?;
}
}
Ok(())
}
pub struct ExplorationPlugin;
impl Plugin for ExplorationPlugin {
fn build(&self, app: &mut AppBuilder) {
app.register_type::<ExplorationFocused>()
.register_type::<ExplorationType>()
.register_type::<Mappable>()
.add_system(exploration_focus.system())
.add_system(
exploration_type_focus
.system()
.chain(error_handler.system()),
)
.add_system(
exploration_type_change
.system()
.chain(error_handler.system()),
)
.add_system(navigate_to_explored.system())
.add_system_to_stage(
CoreStage::PostUpdate,
exploration_type_changed_announcement
.system()
.chain(error_handler.system()),
)
.add_system_to_stage(
CoreStage::PostUpdate,
exploration_changed_announcement
.system()
.chain(error_handler.system()),
);
}
}