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|
use super::response::SpinResult;
use super::slots::SlotsGame;
use super::traits::{Game, GameError, GamePhase, GameState};
use std::collections::HashMap;
pub struct GameManager {
current_session: Option<GameState>,
games: HashMap<String, Box<dyn Game>>,
}
impl GameManager {
pub fn new() -> Self {
let mut games: HashMap<String, Box<dyn Game>> = HashMap::new();
games.insert("slots".to_string(), Box::new(SlotsGame::new()));
Self {
current_session: None,
games,
}
}
pub fn get_available_games(&self) -> Vec<(&str, &str)> {
let mut games: Vec<(&str, &str)> = self
.games
.iter()
.map(|(key, game)| (key.as_str(), game.get_name()))
.collect();
games.sort_unstable_by_key(|(key, _)| *key);
games
}
pub fn enter_game(&mut self, game_type: &str) -> Result<(), GameError> {
if self.current_session.is_some() {
return Err(GameError::InvalidAction);
}
if !self.games.contains_key(game_type) {
return Err(GameError::InvalidAction);
}
self.current_session = Some(GameState {
game_type: game_type.to_string(),
bet_amount: 10,
phase: GamePhase::WaitingToStart,
data: HashMap::new(),
});
Ok(())
}
/// The wire request for a spin, if the current phase allows one.
pub fn spin_request(&self) -> Option<String> {
let session = self.current_session.as_ref()?;
if session.phase != GamePhase::WaitingToStart && session.phase != GamePhase::Finished {
return None;
}
Some(format!(
"PLAY_START {} {}",
session.game_type, session.bet_amount
))
}
/// Move the board into its spinning state and drop the previous result
/// so stale reels/winnings cannot leak into the new spin.
pub fn begin_spin(&mut self) -> Result<(), GameError> {
let session = self
.current_session
.as_mut()
.ok_or(GameError::InvalidAction)?;
if session.phase != GamePhase::WaitingToStart && session.phase != GamePhase::Finished {
return Err(GameError::InvalidAction);
}
session.phase = GamePhase::Playing;
session.data.remove("error");
session.data.remove("reels");
session.data.remove("win_type");
session.data.remove("win_lines");
session.data.remove("winnings");
Ok(())
}
/// Store the settled spin so `render()` can draw it in place.
pub fn apply_result(&mut self, result: SpinResult) {
let Some(session) = self.current_session.as_mut() else {
return;
};
session.phase = GamePhase::Finished;
session.bet_amount = result.bet_amount;
session.data.remove("error");
session.data.insert("reels".to_string(), result.reels);
session
.data
.insert("win_type".to_string(), result.win_type);
session.data.insert(
"win_lines".to_string(),
result
.win_lines
.iter()
.map(usize::to_string)
.collect::<Vec<_>>()
.join(","),
);
session
.data
.insert("winnings".to_string(), result.winnings.to_string());
session
.data
.insert("balance".to_string(), result.balance.to_string());
}
/// Show a failed spin without leaving the player stuck in `Playing`.
pub fn set_error(&mut self, message: impl Into<String>) {
let Some(session) = self.current_session.as_mut() else {
return;
};
session.phase = GamePhase::WaitingToStart;
session.data.remove("reels");
session.data.remove("win_type");
session.data.remove("win_lines");
session.data.remove("winnings");
session.data.insert("error".to_string(), message.into());
}
pub fn set_balance(&mut self, balance: i64) {
if let Some(session) = self.current_session.as_mut() {
session
.data
.insert("balance".to_string(), balance.to_string());
}
}
pub fn get_current_game(&self) -> Option<&dyn Game> {
self.current_session
.as_ref()
.and_then(|session| self.games.get(&session.game_type).map(|game| game.as_ref()))
}
pub fn get_current_state(&self) -> Option<&GameState> {
self.current_session.as_ref()
}
pub fn is_in_game(&self) -> bool {
self.current_session.is_some()
}
pub fn end_game(&mut self) {
self.current_session = None;
}
pub fn set_bet(&mut self, bet: u64) -> Result<u64, GameError> {
let session = self
.current_session
.as_mut()
.ok_or(GameError::InvalidAction)?;
if session.phase != GamePhase::WaitingToStart && session.phase != GamePhase::Finished {
return Err(GameError::InvalidAction);
}
session.bet_amount = bet.max(10);
Ok(session.bet_amount)
}
pub fn adjust_bet(&mut self, delta: i64) -> Result<u64, GameError> {
let session = self
.current_session
.as_mut()
.ok_or(GameError::InvalidAction)?;
if session.phase != GamePhase::WaitingToStart && session.phase != GamePhase::Finished {
return Err(GameError::InvalidAction);
}
let current_bet = session.bet_amount as i64;
session.bet_amount = (current_bet + delta).max(10) as u64;
Ok(session.bet_amount)
}
}
|
