a lot of work

master
Edward Shen 2020-03-21 00:05:39 -04:00
parent e5c32b3855
commit ab74480bfd
Signed by: edward
GPG Key ID: 19182661E818369F
9 changed files with 1035 additions and 74 deletions

442
Cargo.lock generated
View File

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View File

@ -8,3 +8,7 @@ edition = "2018"
[dependencies]
rand = "0.7"
tokio = { version = "0.2", features = ["full"] }
log = "0.4"
simple_logger = "1.6"
sdl2 = { version = "0.33.0", features = ["ttf"] }

View File

@ -4,25 +4,123 @@
use crate::playfield::PlayField;
use crate::srs::RotationSystem;
use crate::srs::SRS;
use crate::tetromino::Position;
use crate::Renderable;
use crate::TICKS_PER_SECOND;
use log::trace;
use sdl2::{render::Canvas, video::Window};
use std::fmt;
pub struct Game<RS: RotationSystem> {
// I think this was correct, can't find source
const LINE_CLEAR_DELAY: u64 = TICKS_PER_SECOND as u64 * 41 / 60;
// Logic is based on 60 ticks / second
pub struct Game {
playfield: PlayField,
rotation_system: RS,
rotation_system: SRS,
level: u8,
points: u64,
points: u32,
pub tick: u64,
next_gravity_tick: u64,
next_lock_tick: u64,
next_spawn_tick: u64,
is_game_over: bool,
}
impl<RS: RotationSystem> Default for Game<RS> {
impl fmt::Debug for Game {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
writeln!(f, "level: {}, points: {}", self.level, self.points)?;
writeln!(f, "tick: {}", self.tick)?;
write!(f, "{:?}", self.playfield)
}
}
impl Default for Game {
fn default() -> Self {
Game {
playfield: PlayField::new(),
rotation_system: RS::default(),
level: 0,
rotation_system: SRS::default(),
level: 1,
points: 0,
tick: 0,
next_gravity_tick: 60,
next_lock_tick: 0,
next_spawn_tick: 0,
is_game_over: false,
}
}
}
pub trait Tickable {
fn tick(&mut self);
}
impl Tickable for Game {
fn tick(&mut self) {
if self.is_game_over() {
return;
}
self.tick += 1;
match self.tick {
t if t == self.next_spawn_tick => self.spawn_tetromino(),
t if t == self.next_lock_tick => {
// It's possible that the player moved the piece in the meantime.
if !self.playfield.can_active_piece_move_down() {
let positions = self.playfield.lock_active_piece();
self.is_game_over =
self.is_game_over || positions.iter().all(|Position { x: _, y }| *y < 20);
if self.clear_lines() {
self.next_spawn_tick = self.tick + LINE_CLEAR_DELAY;
} else {
self.spawn_tetromino();
}
}
}
t if t == self.next_gravity_tick => {
self.playfield.tick_gravity();
if !self.playfield.can_active_piece_move_down() {
self.update_lock_tick();
}
self.update_gravity_tick();
}
_ => (),
}
}
}
impl Game {
pub fn is_game_over(&self) -> bool {
self.is_game_over || !self.playfield.is_active_piece_in_valid_position()
}
fn update_gravity_tick(&mut self) {
self.next_gravity_tick = self.tick + TICKS_PER_SECOND as u64;
}
fn update_lock_tick(&mut self) {
self.next_lock_tick = self.tick + TICKS_PER_SECOND as u64 / 2;
}
fn spawn_tetromino(&mut self) {
self.playfield.spawn_tetromino();
self.playfield.tick_gravity();
self.update_gravity_tick();
}
/// Returns if some lines were cleared
fn clear_lines(&mut self) -> bool {
// todo: award points based on how lines were cleared
return false;
}
}
impl Renderable for Game {
fn render(&self, canvas: &mut Canvas<Window>) -> Result<(), String> {
self.playfield.render(canvas)
}
}
trait Controllable {
fn move_left(&mut self);
fn move_up(&mut self);
@ -34,7 +132,7 @@ trait Controllable {
fn hold(&mut self);
}
impl<RS: RotationSystem> Controllable for Game<RS> {
impl Controllable for Game {
fn move_left(&mut self) {}
fn move_up(&mut self) {}
fn move_right(&mut self) {}

12
src/graphics.rs Normal file
View File

@ -0,0 +1,12 @@
use sdl2::pixels::Color;
pub const CELL_SIZE: u32 = 32;
pub static COLOR_BACKGROUND: Color = Color::RGB(60, 60, 60);
pub static COLOR_CYAN: Color = Color::RGB(0, 255, 255);
pub static COLOR_YELLOW: Color = Color::RGB(255, 255, 0);
pub static COLOR_PURPLE: Color = Color::RGB(255, 0, 255);
pub static COLOR_GREEN: Color = Color::RGB(0, 255, 0);
pub static COLOR_RED: Color = Color::RGB(255, 0, 0);
pub static COLOR_BLUE: Color = Color::RGB(0, 0, 255);
pub static COLOR_ORANGE: Color = Color::RGB(255, 127, 0);
pub static COLOR_GRAY: Color = Color::RGB(100, 100, 100);

View File

@ -1,22 +1,58 @@
use game::Game;
use srs::SRS;
use game::{Game, Tickable};
use graphics::COLOR_BACKGROUND;
use sdl2::event::Event;
use sdl2::keyboard::Keycode;
use sdl2::{render::Canvas, video::Window};
use std::time::Duration;
use tokio::time::interval;
mod game;
mod graphics;
mod playfield;
mod random;
mod srs;
mod tetromino;
#[derive(Debug, Copy, Clone)]
pub enum Tetromino {
I,
O,
T,
S,
Z,
J,
L,
const TICKS_PER_SECOND: usize = 60;
pub trait Renderable {
fn render(&self, canvas: &mut Canvas<Window>) -> Result<(), String>;
}
fn main() {
let mut game: Game<SRS> = Game::default();
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
let sdl_context = sdl2::init()?;
let video_subsystem = sdl_context.video()?;
let window = video_subsystem
.window("retris", 800, 800)
.position_centered()
.build()?;
let mut canvas = window.into_canvas().build()?;
let mut event_pump = sdl_context.event_pump()?;
let mut game = Game::default();
let mut interval = interval(Duration::from_millis(60 / TICKS_PER_SECOND as u64));
'running: while !game.is_game_over() {
for event in event_pump.poll_iter() {
match event {
Event::Quit { .. }
| Event::KeyDown {
keycode: Some(Keycode::Escape),
..
} => break 'running,
_ => {}
}
}
game.tick();
canvas.set_draw_color(COLOR_BACKGROUND);
canvas.clear();
game.render(&mut canvas)?;
canvas.present();
interval.tick().await;
}
println!("Game over! Final game state:");
dbg!(game);
Ok(())
}

View File

@ -1,76 +1,187 @@
use crate::graphics::{CELL_SIZE, COLOR_BACKGROUND};
use crate::random::RandomSystem;
use crate::Tetromino;
use crate::tetromino::Position;
use crate::tetromino::{MinoColor, Tetromino, TetrominoType};
use crate::Renderable;
use sdl2::{pixels::Color, rect::Rect, render::Canvas, video::Window};
use std::collections::VecDeque;
use std::fmt;
#[derive(Copy, Clone)]
enum MinoColor {
Cyan,
Yellow,
Purple,
Green,
Red,
Blue,
Orange,
Gray,
}
pub const PLAYFIELD_HEIGHT: usize = 20;
pub const PLAYFIELD_WIDTH: usize = 10;
pub type Matrix = [[Option<MinoColor>; PLAYFIELD_WIDTH]; 2 * PLAYFIELD_HEIGHT];
enum Movement {
Rotate,
Rotation,
Gravity,
Translation,
}
pub struct Position {
x: u8,
y: u8,
}
pub struct PlayField {
can_swap_hold: bool,
hold_piece: Option<Tetromino>,
field: [[Option<MinoColor>; 10]; 40], // access via y, x
active_piece: Tetromino,
active_pos: Position,
hold_piece: Option<TetrominoType>,
field: Matrix,
active_piece: Option<Tetromino>,
bag: RandomSystem,
next_pieces: VecDeque<Tetromino>,
next_pieces: VecDeque<TetrominoType>,
last_movement: Movement,
}
impl fmt::Debug for PlayField {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match &self.active_piece {
Some(active_piece) => {
writeln!(
f,
"current piece: {:?} @ {}, {}",
active_piece.piece_type, active_piece.position.x, active_piece.position.y
)?;
}
None => (),
}
writeln!(f, "next pieces: {:?}", self.next_pieces)?;
let occupied_spaces = self
.active_piece
.and_then(|t| Some(t.get_cur_occupied_spaces()))
.unwrap_or_default();
for y in PLAYFIELD_HEIGHT..self.field.len() {
write!(
f,
"{} │",
('a' as usize - PLAYFIELD_HEIGHT + y) as u8 as char
)?;
for x in 0..PLAYFIELD_WIDTH {
if occupied_spaces.contains(&Position::new(x, y)) {
write!(f, "#")?;
} else {
match self.field[y][x] {
Some(t) => write!(f, "{:?}", t)?,
None => write!(f, " ")?,
}
}
}
writeln!(f, "")?;
}
writeln!(f, " └{}┘", "".repeat(PLAYFIELD_WIDTH))?;
write!(
f,
" {}",
(0..PLAYFIELD_WIDTH)
.map(|e| e.to_string())
.collect::<Vec<_>>()
.join("")
)?;
Ok(())
}
}
impl PlayField {
pub fn new() -> Self {
let mut bag = RandomSystem::new();
let active_piece = bag.get_tetrino();
let active_piece = Tetromino::from(bag.get_tetrino());
let mut next_pieces = VecDeque::with_capacity(3);
for _ in 0..next_pieces.len() {
for _ in 0..next_pieces.capacity() {
next_pieces.push_back(bag.get_tetrino());
}
PlayField {
can_swap_hold: true,
hold_piece: None,
field: [[None; 10]; 40],
active_piece,
active_pos: Position { x: 0, y: 0 },
field: [[None; PLAYFIELD_WIDTH]; 2 * PLAYFIELD_HEIGHT],
active_piece: Some(active_piece),
bag,
next_pieces,
last_movement: Movement::Gravity,
}
}
fn get_new_piece(&mut self) {
self.active_piece = self
.next_pieces
.pop_front()
.expect("visible queue to be populated");
pub fn spawn_tetromino(&mut self) {
self.active_piece = Some(Tetromino::from(
self.next_pieces
.pop_front()
.expect("visible queue to be populated"),
));
self.next_pieces.push_back(self.bag.get_tetrino());
self.reset_position();
self.can_swap_hold = true;
}
/// Place the current Tetromino at its default spawn position and
/// orientation. Used for hold-swapping or spawning in a new piece.
fn reset_position(&mut self) {
self.last_movement = Movement::Gravity;
unimplemented!();
pub fn tick_gravity(&mut self) {
match &self.active_piece {
Some(mut active_piece) if self.can_active_piece_move_down() => {
active_piece.position.y += 1;
self.active_piece = Some(active_piece);
}
_ => (),
}
}
pub fn can_active_piece_move_down(&self) -> bool {
self.active_piece
.and_then(|p| {
Some(p.get_next_occupied_spaces().iter().fold(true, |acc, pos| {
acc && pos.y < self.field.len()
&& self.field[pos.y as usize][pos.x as usize].is_none()
}))
})
.unwrap_or_else(|| false)
}
pub fn lock_active_piece(&mut self) -> Vec<Position> {
match &self.active_piece {
Some(active_piece) => {
let active_color = active_piece.get_color();
let new_pieces = active_piece.get_cur_occupied_spaces();
for Position { x, y } in &new_pieces {
self.field[*y][*x] = Some(active_color);
}
self.active_piece = None;
new_pieces
}
None => panic!("Tried to lock active piece while active piece doesn't exist!"),
}
}
pub fn is_active_piece_in_valid_position(&self) -> bool {
match self.active_piece {
Some(active_piece) => active_piece.get_cur_occupied_spaces().iter().all(|Position {x, y}| self.field[*y][*x].is_none()),
None => panic!("Tried checking if active piece is in a valid position but active piece doesn't exist")
}
}
}
impl Renderable for PlayField {
fn render(&self, canvas: &mut Canvas<Window>) -> Result<(), String> {
for y in 0..PLAYFIELD_HEIGHT {
for x in 0..PLAYFIELD_WIDTH {
canvas.set_draw_color(Color::RGB(0, 0, 0));
canvas.fill_rect(Rect::new(
CELL_SIZE as i32 * x as i32,
CELL_SIZE as i32 * y as i32,
CELL_SIZE,
CELL_SIZE,
))?;
match self.field[y + PLAYFIELD_HEIGHT][x] {
Some(mino) => canvas.set_draw_color(mino),
None => canvas.set_draw_color(COLOR_BACKGROUND),
}
canvas.fill_rect(Rect::new(
CELL_SIZE as i32 * x as i32 + 2,
CELL_SIZE as i32 * y as i32 + 2,
28,
28,
))?;
}
}
match self.active_piece {
Some(piece) => piece.render(canvas)?,
None => (),
}
Ok(())
}
}

View File

@ -1,9 +1,9 @@
use crate::Tetromino;
use crate::tetromino::TetrominoType;
use rand::{rngs::ThreadRng, seq::SliceRandom, thread_rng};
pub struct RandomSystem {
rng: ThreadRng,
bag: [Tetromino; 7],
bag: [TetrominoType; 7],
cur_pos: usize,
}
@ -12,12 +12,12 @@ impl RandomSystem {
let rng = thread_rng();
RandomSystem {
rng: rng,
bag: [Tetromino::I; 7], // Default value, should get init on first get
bag: [TetrominoType::I; 7], // Default value, should get init on first get
cur_pos: 0,
}
}
pub fn get_tetrino(&mut self) -> Tetromino {
pub fn get_tetrino(&mut self) -> TetrominoType {
if self.cur_pos == 0 {
self.refresh_bag();
}
@ -28,13 +28,13 @@ impl RandomSystem {
fn refresh_bag(&mut self) {
self.bag = [
Tetromino::I,
Tetromino::O,
Tetromino::T,
Tetromino::S,
Tetromino::Z,
Tetromino::J,
Tetromino::L,
TetrominoType::I,
TetrominoType::O,
TetrominoType::T,
TetrominoType::S,
TetrominoType::Z,
TetrominoType::J,
TetrominoType::L,
];
self.bag.shuffle(&mut self.rng);
self.cur_pos = 0;

View File

@ -1,5 +1,5 @@
use crate::playfield::{PlayField, Position};
use crate::Tetromino;
use crate::playfield::PlayField;
use crate::tetromino::{Position, TetrominoType};
#[derive(Copy, Clone)]
pub struct Offset {
@ -16,7 +16,7 @@ pub trait RotationSystem {
fn default() -> Self;
fn get_rotation_offset(
piece: &Tetromino,
piece: &TetrominoType,
center: &Position,
direction: RotationDirection,
playfield: &PlayField,
@ -37,7 +37,7 @@ impl RotationSystem for SRS {
}
fn get_rotation_offset(
piece: &Tetromino,
piece: &TetrominoType,
center: &Position,
direction: RotationDirection,
playfield: &PlayField,

258
src/tetromino.rs Normal file
View File

@ -0,0 +1,258 @@
use crate::{
graphics::*,
playfield::{PLAYFIELD_HEIGHT, PLAYFIELD_WIDTH},
Renderable,
};
use sdl2::{pixels::Color, rect::Rect, render::Canvas, video::Window};
use std::fmt;
#[derive(Copy, Clone)]
pub enum MinoColor {
Cyan,
Yellow,
Purple,
Green,
Red,
Blue,
Orange,
Gray,
}
impl fmt::Debug for MinoColor {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(
f,
"{}",
match self {
Self::Cyan => "c",
Self::Yellow => "y",
Self::Purple => "p",
Self::Green => "g",
Self::Red => "r",
Self::Blue => "b",
Self::Orange => "o",
Self::Gray => "x",
}
)
}
}
impl Into<Color> for MinoColor {
fn into(self) -> Color {
match self {
Self::Cyan => COLOR_CYAN,
Self::Yellow => COLOR_YELLOW,
Self::Purple => COLOR_PURPLE,
Self::Green => COLOR_GREEN,
Self::Red => COLOR_RED,
Self::Blue => COLOR_BLUE,
Self::Orange => COLOR_ORANGE,
Self::Gray => COLOR_GRAY,
}
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum TetrominoType {
I,
O,
T,
S,
Z,
J,
L,
}
impl Into<Color> for TetrominoType {
fn into(self) -> Color {
match self {
Self::I => COLOR_CYAN,
Self::O => COLOR_YELLOW,
Self::T => COLOR_PURPLE,
Self::S => COLOR_GREEN,
Self::Z => COLOR_RED,
Self::J => COLOR_BLUE,
Self::L => COLOR_ORANGE,
}
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
enum RotationState {
O, // initial state
R, // clockwise rotation
L, // counter-clockwise rotation
U, // 180 deg rotation
}
impl Default for RotationState {
fn default() -> Self {
RotationState::O
}
}
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub struct Position {
pub x: usize,
pub y: usize,
}
impl Position {
pub fn new(x: usize, y: usize) -> Position {
Self {
x: x as usize,
y: y as usize,
}
}
fn offset(&self, x: isize, y: isize) -> Position {
Self {
x: (x + self.x as isize) as usize,
y: (y + self.y as isize) as usize,
}
}
}
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub struct Tetromino {
pub position: Position,
pub piece_type: TetrominoType,
rotation_state: RotationState,
}
impl Tetromino {
pub fn new(tetromino_type: TetrominoType) -> Self {
Self {
position: Self::get_start_position(tetromino_type),
piece_type: tetromino_type,
rotation_state: RotationState::default(),
}
}
pub fn get_next_occupied_spaces(&self) -> Vec<Position> {
self.get_occupied_spaces(self.position.offset(0, 1))
}
pub fn get_cur_occupied_spaces(&self) -> Vec<Position> {
self.get_occupied_spaces(self.position)
}
pub fn get_color(&self) -> MinoColor {
match self.piece_type {
TetrominoType::I => MinoColor::Cyan,
TetrominoType::O => MinoColor::Yellow,
TetrominoType::T => MinoColor::Purple,
TetrominoType::S => MinoColor::Green,
TetrominoType::Z => MinoColor::Red,
TetrominoType::J => MinoColor::Blue,
TetrominoType::L => MinoColor::Orange,
}
}
fn get_start_position(tetromino_type: TetrominoType) -> Position {
if tetromino_type == TetrominoType::I {
Position::new(PLAYFIELD_WIDTH / 2 - 1, PLAYFIELD_HEIGHT - 1)
} else {
Position::new(PLAYFIELD_WIDTH / 2 - 1, PLAYFIELD_HEIGHT)
}
}
fn get_occupied_spaces(&self, center: Position) -> Vec<Position> {
let mut spaces = vec![center];
match self.piece_type {
TetrominoType::I => match self.rotation_state {
RotationState::O => spaces.extend_from_slice(&[
center.offset(-1, 0),
center.offset(1, 0),
center.offset(2, 0),
]),
RotationState::R => spaces.extend_from_slice(&[
center.offset(0, -1),
center.offset(0, 1),
center.offset(0, 2),
]),
RotationState::L => todo!(),
RotationState::U => todo!(),
},
TetrominoType::J => match self.rotation_state {
RotationState::O => spaces.extend_from_slice(&[
center.offset(-1, -1),
center.offset(-1, 0),
center.offset(1, 0),
]),
RotationState::R => todo!(),
RotationState::L => todo!(),
RotationState::U => todo!(),
},
TetrominoType::L => match self.rotation_state {
RotationState::O => spaces.extend_from_slice(&[
center.offset(1, -1),
center.offset(-1, 0),
center.offset(1, 0),
]),
RotationState::R => todo!(),
RotationState::L => todo!(),
RotationState::U => todo!(),
},
TetrominoType::O => match self.rotation_state {
RotationState::O => spaces.extend_from_slice(&[
center.offset(0, -1),
center.offset(1, -1),
center.offset(1, 0),
]),
RotationState::R => todo!(),
RotationState::L => todo!(),
RotationState::U => todo!(),
},
TetrominoType::S => match self.rotation_state {
RotationState::O => spaces.extend_from_slice(&[
center.offset(0, -1),
center.offset(1, -1),
center.offset(-1, 0),
]),
RotationState::R => todo!(),
RotationState::L => todo!(),
RotationState::U => todo!(),
},
TetrominoType::T => match self.rotation_state {
RotationState::O => spaces.extend_from_slice(&[
center.offset(0, -1),
center.offset(-1, 0),
center.offset(1, 0),
]),
RotationState::R => todo!(),
RotationState::L => todo!(),
RotationState::U => todo!(),
},
TetrominoType::Z => match self.rotation_state {
RotationState::O => spaces.extend_from_slice(&[
center.offset(-1, -1),
center.offset(0, -1),
center.offset(1, 0),
]),
RotationState::R => todo!(),
RotationState::L => todo!(),
RotationState::U => todo!(),
},
}
spaces
}
}
impl From<TetrominoType> for Tetromino {
fn from(tetromino_type: TetrominoType) -> Self {
Self::new(tetromino_type)
}
}
impl Renderable for Tetromino {
fn render(&self, canvas: &mut Canvas<Window>) -> Result<(), String> {
for Position { x, y } in self.get_cur_occupied_spaces() {
canvas.set_draw_color(self.piece_type);
let height = y as isize - PLAYFIELD_HEIGHT as isize;
canvas.fill_rect(Rect::new(32 * x as i32 + 2, 32 * height as i32 + 2, 28, 28))?;
}
Ok(())
}
}