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EN605.607.81.SP22_ASDM_Project
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Move some backend fns to the shared "state.rs"

This commit is contained in:
Stephen Seo 2022-03-31 21:02:52 +09:00
parent b783e35759
commit 8782a731bc
2 changed files with 95 additions and 91 deletions
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94
back_end/src/db_handler.rs
View File

@ -1,8 +1,6 @@
use crate::constants::{COLS, ROWS};
use crate::game_logic::{check_win_draw, WinType};
use crate::state::{new_empty_board, BoardState, BoardType};
use crate::state::{BoardState, new_string_board, board_from_string, string_from_board};
use std::collections::hash_set::HashSet;
use std::sync::mpsc::{Receiver, SyncSender};
use std::{fmt, thread};
@ -355,7 +353,7 @@ impl DBHandler {
// TODO randomize players (or first-come-first-serve ok to do?)
conn.execute(
"INSERT INTO games (id, cyan_player, magenta_player, date_added, board, status) VALUES (?, ?, ?, datetime(), ?, 0);",
params![game_id, players[0], players[1], new_board()]
params![game_id, players[0], players[1], new_string_board()]
)
.map_err(|e| format!("{:?}", e))?;
conn.execute(
@ -637,7 +635,7 @@ impl DBHandler {
let board = board_result.unwrap();
if cyan_id_result.is_ok() && magenta_id_result.is_ok() {
if let (Ok(cyan_id_opt), Ok(magenta_id_opt)) = (cyan_id_result, magenta_id_result) {
if let (Some(cyan_id), Some(magenta_id)) = (cyan_id_opt, magenta_id_opt) {
if let (Some(cyan_id), Some(_magenta_id)) = (cyan_id_opt, magenta_id_opt) {
Ok(Ok((cyan_id == player_id, status, board)))
} else {
Ok(Err(DBPlaceError::OpponentDisconnected))
@ -761,90 +759,4 @@ pub fn start_db_handler_thread(
});
}
fn new_board() -> String {
let mut board = String::with_capacity(56);
for _i in 0..56 {
board.push('a');
}
board
}
fn board_from_string(board_string: String) -> BoardType {
let board = new_empty_board();
for (idx, c) in board_string.chars().enumerate() {
match c {
'a' => board[idx].replace(BoardState::Empty),
'b' | 'd' | 'f' => board[idx].replace(BoardState::Cyan),
'c' | 'e' | 'g' => board[idx].replace(BoardState::Magenta),
_ => BoardState::Empty,
};
}
board
}
/// Returns the board as a String, and true if the game has ended
fn string_from_board(board: BoardType, placed: usize) -> (String, bool) {
let mut board_string = String::with_capacity(56);
// check for winning pieces
let mut win_set: HashSet<usize> = HashSet::new();
let win_opt = check_win_draw(&board);
if let Some((board_state, win_type)) = win_opt {
match win_type {
WinType::Horizontal(pos) => {
for i in pos..(pos + 4) {
win_set.insert(i);
}
}
WinType::Vertical(pos) => {
for i in 0..4 {
win_set.insert(pos + i * COLS as usize);
}
}
WinType::DiagonalUp(pos) => {
for i in 0..4 {
win_set.insert(pos + i - i * COLS as usize);
}
}
WinType::DiagonalDown(pos) => {
for i in 0..4 {
win_set.insert(pos + i + i * COLS as usize);
}
}
WinType::None => (),
}
}
// set values to String
let mut is_full = true;
for (idx, board_state) in board.iter().enumerate().take((COLS * ROWS) as usize) {
board_string.push(match board_state.get() {
BoardState::Empty => {
is_full = false;
'a'
}
BoardState::Cyan | BoardState::CyanWin => {
if win_set.contains(&idx) {
'd'
} else if idx == placed {
'f'
} else {
'b'
}
}
BoardState::Magenta | BoardState::MagentaWin => {
if win_set.contains(&idx) {
'e'
} else if idx == placed {
'g'
} else {
'c'
}
}
});
}
(board_string, is_full || !win_set.is_empty())
}

92
front_end/src/state.rs
View File

@ -1,4 +1,8 @@
use crate::ai::AIDifficulty;
use crate::game_logic::{WinType, check_win_draw};
use crate::constants::{ROWS, COLS};
use std::collections::hash_set::HashSet;
use std::cell::Cell;
use std::fmt::Display;
use std::rc::Rc;
@ -296,3 +300,91 @@ pub enum MainMenuMessage {
LocalMultiplayer,
NetworkedMultiplayer(Turn),
}
pub fn new_string_board() -> String {
let mut board = String::with_capacity(56);
for _i in 0..56 {
board.push('a');
}
board
}
pub fn board_from_string(board_string: String) -> BoardType {
let board = new_empty_board();
for (idx, c) in board_string.chars().enumerate() {
match c {
'a' => board[idx].replace(BoardState::Empty),
'b' | 'd' | 'f' => board[idx].replace(BoardState::Cyan),
'c' | 'e' | 'g' => board[idx].replace(BoardState::Magenta),
_ => BoardState::Empty,
};
}
board
}
/// Returns the board as a String, and true if the game has ended
pub fn string_from_board(board: BoardType, placed: usize) -> (String, bool) {
let mut board_string = String::with_capacity(56);
// check for winning pieces
let mut win_set: HashSet<usize> = HashSet::new();
let win_opt = check_win_draw(&board);
if let Some((board_state, win_type)) = win_opt {
match win_type {
WinType::Horizontal(pos) => {
for i in pos..(pos + 4) {
win_set.insert(i);
}
}
WinType::Vertical(pos) => {
for i in 0..4 {
win_set.insert(pos + i * COLS as usize);
}
}
WinType::DiagonalUp(pos) => {
for i in 0..4 {
win_set.insert(pos + i - i * COLS as usize);
}
}
WinType::DiagonalDown(pos) => {
for i in 0..4 {
win_set.insert(pos + i + i * COLS as usize);
}
}
WinType::None => (),
}
}
// set values to String
let mut is_full = true;
for (idx, board_state) in board.iter().enumerate().take((COLS * ROWS) as usize) {
board_string.push(match board_state.get() {
BoardState::Empty => {
is_full = false;
'a'
}
BoardState::Cyan | BoardState::CyanWin => {
if win_set.contains(&idx) {
'd'
} else if idx == placed {
'f'
} else {
'b'
}
}
BoardState::Magenta | BoardState::MagentaWin => {
if win_set.contains(&idx) {
'e'
} else if idx == placed {
'g'
} else {
'c'
}
}
});
}
(board_string, is_full || !win_set.is_empty())
}