Replace the local implementation of 2d geometry by lowdim

This also forces an update of the rand dependency,
so while we are at it we update all the dependencies.
This commit is contained in:
Juergen Stuber 2023-04-10 00:57:36 +02:00
parent baf4df6c56
commit 7fe895f041
10 changed files with 588 additions and 475 deletions

516
Cargo.lock generated
View File

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"windows_i686_gnu",
"windows_i686_msvc",
"windows_x86_64_gnu",
"windows_x86_64_gnullvm",
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View File

@ -1,9 +1,10 @@
[package]
name = "pixelfoo"
version = "0.1.0"
version = "0.2.0"
authors = ["juergen <juergen@chaospott.de>"]
edition = "2018"
[dependencies]
rand = "0.6.0"
rand = "0.8.4"
chrono = "0.4.6"
lowdim = { version = "0.6.0", features = ["random"] }

View File

@ -56,8 +56,8 @@ fn main() -> std::io::Result<()> {
.take(y_size)
.collect::<Vec<_>>();
loop {
let x = rng.gen_range(0, x_size);
let y = rng.gen_range(0, y_size);
let x = rng.gen_range(0..x_size);
let y = rng.gen_range(0..y_size);
let c = pick_color(c0, c1, &mut rng);
frame[y][x] = c;

View File

@ -12,11 +12,16 @@ use chrono::Timelike;
use rand::thread_rng;
use rand::Rng;
use lowdim::bb2d;
use lowdim::p2d;
use lowdim::v2d;
use lowdim::Array2d;
use lowdim::BBox2d;
use lowdim::Point2d;
use lowdim::Vec2d;
use lowdim::Vector;
use pixelfoo::color::Color;
use pixelfoo::point2d::p2d;
use pixelfoo::point2d::Point2d;
use pixelfoo::vec2d::v2d;
use pixelfoo::vec2d::Vec2d;
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
enum Square {
@ -37,17 +42,24 @@ impl Square {
}
}
struct Board(Vec<Vec<Square>>);
#[derive(Clone, Debug)]
struct Board(Array2d<i64, Square>);
impl Board {
fn bbox(&self) -> BBox2d {
self.0.bbox()
}
}
fn send<T: Write>(w: &mut T, board: &Board) -> std::io::Result<()> {
for line in &board.0 {
for square in line {
for y in board.bbox().y_range() {
for x in board.bbox().x_range() {
let square = board.0[p2d(x, y)];
let c = match square {
Square::Unused => Color::black(),
Square::Unknown { prio } => {
if *prio == 0 {
if prio == 0 {
Color::black()
} else if *prio > 0 {
} else if prio > 0 {
Color::lightblue()
} else {
Color::darkyellow()
@ -71,35 +83,32 @@ enum Orientation {
}
impl Board {
fn new(board_size: Vec2d, maze_size: Vec2d) -> Board {
Board(
(0..board_size.y)
.map(move |y| {
(0..board_size.x)
.map(|x| {
if x < maze_size.x && y < maze_size.y {
if x == 0 || x == maze_size.x - 1 || y == 0 || y == maze_size.y - 1
{
Square::Wall
} else if x % 2 != 0 && y % 2 != 0 {
Square::Corridor
} else {
Square::Unknown { prio: 0 }
}
} else {
Square::Unused
}
})
.collect::<Vec<_>>()
})
.collect::<Vec<_>>(),
)
fn new(board_bbox: BBox2d, maze_bbox: BBox2d) -> Board {
Board(Array2d::with(board_bbox, |p| {
if maze_bbox.contains(&p) {
let x = p.x();
let y = p.y();
if x == maze_bbox.x_min()
|| x == maze_bbox.x_max()
|| y == maze_bbox.y_min()
|| y == maze_bbox.y_max()
{
Square::Wall
} else if x % 2 != 0 && y % 2 != 0 {
Square::Corridor
} else {
Square::Unknown { prio: 0 }
}
} else {
Square::Unused
}
}))
}
fn get(&self, pos: Point2d) -> Square {
self.0[pos.y as usize][pos.x as usize]
self.0[pos]
}
fn set(&mut self, pos: Point2d, sq: Square) {
self.0[pos.y as usize][pos.x as usize] = sq;
self.0[pos] = sq;
}
fn set_orientation(&mut self, desired: Orientation, pos: Point2d) {
@ -107,14 +116,14 @@ impl Board {
match sq {
Square::Unknown { .. } => {
let prio;
if pos.x % 2 == 0 && pos.y % 2 != 0 {
if pos.x() % 2 == 0 && pos.y() % 2 != 0 {
// horizontal corridor, vertical wall
prio = if desired == Orientation::Vertical {
10
} else {
-10
};
} else if pos.x % 2 != 0 && pos.y % 2 == 0 {
} else if pos.x() % 2 != 0 && pos.y() % 2 == 0 {
// vertical corridor, horizontal wall
prio = if desired == Orientation::Horizontal {
10
@ -137,28 +146,28 @@ impl Board {
self.set_orientation(Orientation::Vertical, pos);
}
fn draw_horizontal_segment(&mut self, pos: Point2d, size: Vec2d) {
for x in 0..size.x {
let xn = size.x - 1 - x;
for x in 0..size.x() {
let xn = size.x() - 1 - x;
self.set_horizontal(pos + v2d(x, 0));
for y in 1..x.min(xn).min(size.y / 2) + 1 {
for y in 1..x.min(xn).min(size.y() / 2) + 1 {
self.set_horizontal(pos + v2d(x, y));
self.set_horizontal(pos + v2d(x, -y));
}
}
}
fn draw_vertical_segment(&mut self, pos: Point2d, size: Vec2d) {
for y in 0..size.y {
let yn = size.y - 1 - y;
for y in 0..size.y() {
let yn = size.y() - 1 - y;
self.set_vertical(pos + v2d(0, y));
for x in 1..y.min(yn).min(size.x / 2) + 1 {
for x in 1..y.min(yn).min(size.x() / 2) + 1 {
self.set_vertical(pos + v2d(x, y));
self.set_vertical(pos + v2d(-x, y));
}
}
}
fn draw_7_segments(&mut self, pos: Point2d, size: Vec2d, segments: u8) {
let length = size.x;
let width = size.y;
let length = size.x();
let width = size.y();
let delta = length + 1;
let hsize = v2d(length, width);
let vsize = v2d(width, length);
@ -226,7 +235,7 @@ where
open.push(Move {
from,
dir,
prio: prio * 100 + rng.gen_range(0, 1000),
prio: prio * 100 + rng.gen_range(0..1000),
});
}
}
@ -237,8 +246,8 @@ fn main() -> std::io::Result<()> {
let args = args().collect::<Vec<_>>();
eprintln!("executing {}", args[0]);
let x_size = args[1].parse::<usize>().unwrap();
let y_size = args[2].parse::<usize>().unwrap();
let x_size = args[1].parse::<i64>().unwrap();
let y_size = args[2].parse::<i64>().unwrap();
let arg = args[3].parse::<isize>().unwrap_or(DEFAULT_ARG);
eprintln!("screen size {}x{}, arg {}", x_size, y_size, arg);
@ -247,14 +256,11 @@ fn main() -> std::io::Result<()> {
let t_frame = 0.040; // s
let delay = Duration::new(0, (1_000_000_000.0 * t_frame) as u32);
let board_size = v2d(x_size as i32, y_size as i32);
let board_bbox = bb2d(0..x_size, 0..y_size);
// round down to odd size for maze
let maze_size = v2d(
(board_size.x - 1) / 2 * 2 + 1,
(board_size.y - 1) / 2 * 2 + 1,
);
let maze_bbox = bb2d(0..(x_size - 1) / 2 * 2 + 1, 0..(y_size - 1) / 2 * 2 + 1);
let mut board = Board(Vec::new());
let mut board = Board::new(board_bbox, maze_bbox);
let mut open = BinaryHeap::new();
let mut last_drawn_minute = 99;
loop {
@ -267,7 +273,7 @@ fn main() -> std::io::Result<()> {
if m != last_drawn_minute {
last_drawn_minute = m;
board = Board::new(board_size, maze_size);
board = Board::new(board_bbox, maze_bbox);
// draw time in prios
let segment_size = v2d(11, 5);
@ -277,23 +283,35 @@ fn main() -> std::io::Result<()> {
board.draw_digit(p2d(59, 7), segment_size, (m % 10) as u8);
// start building walls from the border
for x in (2..(maze_size.x - 2)).step_by(2) {
add_move(&board, &mut open, &mut rng, p2d(x, 0), v2d(0, 1));
for x in (2..(maze_bbox.x_max() - 1)).step_by(2) {
add_move(
&board,
&mut open,
&mut rng,
p2d(x, maze_size.y - 1),
p2d(x, maze_bbox.y_min()),
v2d(0, 1),
);
add_move(
&board,
&mut open,
&mut rng,
p2d(x, maze_bbox.y_max()),
v2d(0, -1),
);
}
for y in (2..(maze_size.y - 2)).step_by(2) {
add_move(&board, &mut open, &mut rng, p2d(0, y), v2d(1, 0));
for y in (2..(maze_bbox.y_max() - 1)).step_by(2) {
add_move(
&board,
&mut open,
&mut rng,
p2d(maze_size.x - 1, y),
p2d(maze_bbox.x_min(), y),
v2d(1, 0),
);
add_move(
&board,
&mut open,
&mut rng,
p2d(maze_bbox.x_max(), y),
v2d(-1, 0),
);
}
@ -316,7 +334,7 @@ fn main() -> std::io::Result<()> {
board.set(p1, Square::Wall);
board.set(p2, Square::Wall);
for dir1 in Vec2d::directions() {
for dir1 in Vec2d::unit_vecs_l1() {
let p3 = p2 + dir1;
let p4 = p3 + dir1;
if board.get(p3).is_unknown() {
@ -332,12 +350,12 @@ fn main() -> std::io::Result<()> {
}
if open.is_empty() {
board.set(p2d(1, 1), Square::Start);
board.set(p2d(maze_size.x - 2, maze_size.y - 2), Square::Finish);
board.set(maze_bbox.min() + v2d(1, 1), Square::Start);
board.set(maze_bbox.max() - v2d(1, 1), Square::Finish);
}
}
let mut buf = Vec::with_capacity((board_size.x * board_size.y * 3) as usize);
let mut buf = Vec::with_capacity(board_bbox.area() * 3);
send(&mut buf, &board)?;
stdout().write_all(&buf)?;
stdout().flush()?;

View File

@ -12,11 +12,16 @@ use chrono::Timelike;
use rand::thread_rng;
use rand::Rng;
use lowdim::bb2d;
use lowdim::p2d;
use lowdim::v2d;
use lowdim::Array2d;
use lowdim::BBox2d;
use lowdim::Point2d;
use lowdim::Vec2d;
use lowdim::Vector;
use pixelfoo::color::Color;
use pixelfoo::point2d::p2d;
use pixelfoo::point2d::Point2d;
use pixelfoo::vec2d::v2d;
use pixelfoo::vec2d::Vec2d;
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
enum Square {
@ -37,17 +42,24 @@ impl Square {
}
}
struct Board(Vec<Vec<Square>>);
#[derive(Clone, Debug)]
struct Board(Array2d<i64, Square>);
impl Board {
fn bbox(&self) -> BBox2d {
self.0.bbox()
}
}
fn send<T: Write>(w: &mut T, board: &Board) -> std::io::Result<()> {
for line in &board.0 {
for square in line {
for y in board.bbox().y_range() {
for x in board.bbox().x_range() {
let square = board.0[p2d(x, y)];
let c = match square {
Square::Unused => Color::black(),
Square::Unknown { prio } => {
if *prio == 0 {
if prio == 0 {
Color::black()
} else if *prio < 0 {
} else if prio < 0 {
Color::lightblue()
} else {
Color::darkyellow()
@ -71,37 +83,31 @@ enum Orientation {
}
impl Board {
fn new(board_size: Vec2d, maze_size: Vec2d) -> Board {
Board(
(0..board_size.y)
.map(move |y| {
(0..board_size.x)
.map(|x| {
if x < maze_size.x && y < maze_size.y {
if x == 0
|| x == maze_size.x - 1
|| y == 0
|| y == maze_size.y - 1
|| (x % 2 == 0 && y % 2 == 0)
{
Square::Wall
} else {
Square::Unknown { prio: 0 }
}
} else {
Square::Unused
}
})
.collect::<Vec<_>>()
})
.collect::<Vec<_>>(),
)
fn new(board_bbox: BBox2d, maze_bbox: BBox2d) -> Board {
Board(Array2d::with(board_bbox, |p| {
if maze_bbox.contains(&p) {
let x = p.x();
let y = p.y();
if x == maze_bbox.x_min()
|| x == maze_bbox.x_max()
|| y == maze_bbox.y_min()
|| y == maze_bbox.y_max()
|| (x % 2 == 0 && y % 2 == 0)
{
Square::Wall
} else {
Square::Unknown { prio: 0 }
}
} else {
Square::Unused
}
}))
}
fn get(&self, pos: Point2d) -> Square {
self.0[pos.y as usize][pos.x as usize]
self.0[pos]
}
fn set(&mut self, pos: Point2d, sq: Square) {
self.0[pos.y as usize][pos.x as usize] = sq;
self.0[pos] = sq;
}
fn set_orientation(&mut self, desired: Orientation, pos: Point2d) {
@ -109,14 +115,14 @@ impl Board {
match sq {
Square::Unknown { .. } => {
let prio;
if pos.x % 2 == 0 && pos.y % 2 != 0 {
if pos.x() % 2 == 0 && pos.y() % 2 != 0 {
// horizontal corridor, vertical wall
prio = if desired == Orientation::Horizontal {
10
} else {
-10
};
} else if pos.x % 2 != 0 && pos.y % 2 == 0 {
} else if pos.x() % 2 != 0 && pos.y() % 2 == 0 {
// vertical corridor, horizontal wall
prio = if desired == Orientation::Vertical {
10
@ -139,28 +145,28 @@ impl Board {
self.set_orientation(Orientation::Vertical, pos);
}
fn draw_horizontal_segment(&mut self, pos: Point2d, size: Vec2d) {
for x in 0..size.x {
let xn = size.x - 1 - x;
for x in 0..size.x() {
let xn = size.x() - 1 - x;
self.set_horizontal(pos + v2d(x, 0));
for y in 1..x.min(xn).min(size.y / 2) + 1 {
for y in 1..x.min(xn).min(size.y() / 2) + 1 {
self.set_horizontal(pos + v2d(x, y));
self.set_horizontal(pos + v2d(x, -y));
}
}
}
fn draw_vertical_segment(&mut self, pos: Point2d, size: Vec2d) {
for y in 0..size.y {
let yn = size.y - 1 - y;
for y in 0..size.y() {
let yn = size.y() - 1 - y;
self.set_vertical(pos + v2d(0, y));
for x in 1..y.min(yn).min(size.x / 2) + 1 {
for x in 1..y.min(yn).min(size.x() / 2) + 1 {
self.set_vertical(pos + v2d(x, y));
self.set_vertical(pos + v2d(-x, y));
}
}
}
fn draw_7_segments(&mut self, pos: Point2d, size: Vec2d, segments: u8) {
let length = size.x;
let width = size.y;
let length = size.x();
let width = size.y();
let delta = length + 1;
let hsize = v2d(length, width);
let vsize = v2d(width, length);
@ -228,7 +234,7 @@ where
open.push(Move {
from,
dir,
prio: prio * 100 + rng.gen_range(0, 1000),
prio: prio * 100 + rng.gen_range(0..1000),
});
}
}
@ -239,8 +245,8 @@ fn main() -> std::io::Result<()> {
let args = args().collect::<Vec<_>>();
eprintln!("executing {}", args[0]);
let x_size = args[1].parse::<usize>().unwrap();
let y_size = args[2].parse::<usize>().unwrap();
let x_size = args[1].parse::<i64>().unwrap();
let y_size = args[2].parse::<i64>().unwrap();
let arg = args[3].parse::<isize>().unwrap_or(DEFAULT_ARG);
eprintln!("screen size {}x{}, arg {}", x_size, y_size, arg);
@ -249,16 +255,13 @@ fn main() -> std::io::Result<()> {
let t_frame = 0.040; // s
let delay = Duration::new(0, (1_000_000_000.0 * t_frame) as u32);
let board_size = v2d(x_size as i32, y_size as i32);
let board_bbox = bb2d(0..x_size, 0..y_size);
// round down to odd size for maze
let maze_size = v2d(
(board_size.x - 1) / 2 * 2 + 1,
(board_size.y - 1) / 2 * 2 + 1,
);
let maze_bbox = bb2d(0..(x_size - 1) / 2 * 2 + 1, 0..(y_size - 1) / 2 * 2 + 1);
// pick odd position at or near the middle
let maze_mid = p2d((maze_size.x - 1) / 4 * 2 + 1, (maze_size.y - 1) / 4 * 2 + 1);
let maze_mid = maze_bbox.center();
let mut board = Board(Vec::new());
let mut board = Board::new(board_bbox, maze_bbox);
let mut open = BinaryHeap::new();
let mut last_drawn_minute = 99;
loop {
@ -271,7 +274,7 @@ fn main() -> std::io::Result<()> {
if m != last_drawn_minute {
last_drawn_minute = m;
board = Board::new(board_size, maze_size);
board = Board::new(board_bbox, maze_bbox);
// draw time in prios
let segment_size = v2d(11, 5);
@ -305,7 +308,7 @@ fn main() -> std::io::Result<()> {
board.set(p1, Square::Corridor);
board.set(p2, Square::Corridor);
for dir1 in Vec2d::directions() {
for dir1 in Vec2d::unit_vecs_l1() {
let p3 = p2 + dir1;
let p4 = p3 + dir1;
if board.get(p3).is_unknown() {
@ -321,12 +324,12 @@ fn main() -> std::io::Result<()> {
}
if open.is_empty() {
board.set(p2d(1, 1), Square::Start);
board.set(p2d(maze_size.x - 2, maze_size.y - 2), Square::Finish);
board.set(maze_bbox.min() + v2d(1, 1), Square::Start);
board.set(maze_bbox.max() - v2d(1, 1), Square::Finish);
}
}
let mut buf = Vec::with_capacity((board_size.x * board_size.y * 3) as usize);
let mut buf = Vec::with_capacity(board_bbox.area() * 3);
send(&mut buf, &board)?;
stdout().write_all(&buf)?;
stdout().flush()?;

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@ -1,18 +1,19 @@
use std::env::args;
use std::io::stdout;
use std::io::Write;
use std::iter::repeat_with;
use std::thread::sleep;
use std::time::Duration;
use rand::thread_rng;
use rand::Rng;
use lowdim::bb2d;
use lowdim::p2d;
use lowdim::Array2d;
use lowdim::BBox2d;
use lowdim::Point2d;
use pixelfoo::color::Color;
use pixelfoo::point2d::Point2d;
use pixelfoo::rect2d::Rect2d;
use pixelfoo::vec2d::v2d;
use pixelfoo::vec2d::Vec2d;
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
enum Square {
@ -22,40 +23,27 @@ enum Square {
Fox,
}
struct Board(Vec<Vec<Square>>);
#[derive(Clone, Debug)]
struct Board(Array2d<i64, Square>);
impl Board {
pub fn new(size: Vec2d, mut f: impl FnMut() -> Square) -> Board {
Board(
repeat_with(|| {
repeat_with(&mut f)
.take(size.x as usize)
.collect::<Vec<_>>()
})
.take(size.y as usize)
.collect::<Vec<_>>(),
)
pub fn new(bbox: BBox2d, mut f: impl FnMut() -> Square) -> Board {
Board(Array2d::with(bbox, |_p| f()))
}
pub fn size(&self) -> Vec2d {
let x_size = self.0[0].len() as i32;
let y_size = self.0.len() as i32;
v2d(x_size, y_size)
fn bbox(&self) -> BBox2d {
self.0.bbox()
}
pub fn rect(&self) -> Rect2d {
Rect2d::new(0, self.size().x, 0, self.size().y)
fn get(&self, pos: Point2d) -> Square {
self.0[pos]
}
pub fn get(&self, pos: Point2d) -> Square {
self.0[pos.y as usize][pos.x as usize]
}
pub fn set(&mut self, pos: Point2d, sq: Square) {
self.0[pos.y as usize][pos.x as usize] = sq;
fn set(&mut self, pos: Point2d, sq: Square) {
self.0[pos] = sq;
}
}
fn send<T: Write>(w: &mut T, board: &Board) -> std::io::Result<()> {
let Board(lines) = board;
for line in lines {
for square in line {
for y in board.bbox().y_range() {
for x in board.bbox().x_range() {
let square = board.0[p2d(x, y)];
let c = match square {
Square::Empty => Color::blue(),
Square::Grass => Color::green(),
@ -68,11 +56,9 @@ fn send<T: Write>(w: &mut T, board: &Board) -> std::io::Result<()> {
w.flush()
}
const DEFAULT_ARG: usize = 10;
fn grow(board: &Board, pos: Point2d, grow: Square, die: Square) -> Square {
for pos1 in pos.neighbours() {
if board.rect().contains(pos1) {
for pos1 in pos.neighbors_l1() {
if board.bbox().contains(&pos1) {
let neigh_sq = board.get(pos1);
if neigh_sq == grow {
return grow;
@ -82,23 +68,24 @@ fn grow(board: &Board, pos: Point2d, grow: Square, die: Square) -> Square {
die
}
const DEFAULT_ARG: usize = 10;
fn main() -> std::io::Result<()> {
let args = args().collect::<Vec<_>>();
eprintln!("executing {}", args[0]);
let x_size = args[1].parse::<usize>().unwrap();
let y_size = args[2].parse::<usize>().unwrap();
let x_size = args[1].parse::<i64>().unwrap();
let y_size = args[2].parse::<i64>().unwrap();
let arg = args[3].parse::<usize>().unwrap_or(DEFAULT_ARG);
eprintln!("screen size {}x{}, arg {}", x_size, y_size, arg);
let mut rng = thread_rng();
let size = v2d(x_size as i32, y_size as i32);
let bbox = bb2d(0..x_size, 0..y_size);
let p_empty = 0.25;
let p_grass = 0.25;
let p_rabbit = 0.25;
// p_fox = 0.05
let mut board = Board::new(size, || {
let mut board = Board::new(bbox, || {
let p = rng.gen::<f64>();
if p < p_empty {
Square::Empty
@ -115,18 +102,18 @@ fn main() -> std::io::Result<()> {
let delay = Duration::new(0, (1_000_000_000.0 * t_frame) as u32);
// mid point of the board
let x_mid = (x_size - 1) as f64 / 2.0;
let y_mid = (y_size - 1) as f64 / 2.0;
let x_mid = (bbox.x_min() + bbox.x_max()) as f64 / 2.0;
let y_mid = (bbox.y_min() + bbox.y_max()) as f64 / 2.0;
// radius of the death zone in the middle
let r = (x_size.min(y_size) - 1) as f64 / 2.5;
loop {
for _ in 0..arg {
let pos = board.rect().random_point(&mut rng);
let pos = bbox.random_point(&mut rng);
let sq = board.get(pos);
let dx = (pos.x as f64 - x_mid as f64) / r as f64;
let dy = (pos.y as f64 - y_mid as f64) / r as f64;
let dx = (pos.x() as f64 - x_mid as f64) / r as f64;
let dy = (pos.y() as f64 - y_mid as f64) / r as f64;
let p0 = (dx * dx + dy * dy).min(1.0);
let p_survive = match sq {
Square::Empty => 1.0,
@ -150,7 +137,7 @@ fn main() -> std::io::Result<()> {
);
}
let mut buf = Vec::with_capacity(x_size * y_size * 3);
let mut buf = Vec::with_capacity(bbox.area() * 3);
send(&mut buf, &board)?;
stdout().write_all(&buf)?;
stdout().flush()?;

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@ -1,7 +1 @@
pub mod color;
pub mod vec2d;
pub mod point2d;
pub mod rect2d;

View File

@ -1,63 +0,0 @@
use std::ops::Add;
use crate::vec2d::Vec2d;
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub struct Point2d {
pub x: i32,
pub y: i32,
}
impl Point2d {
pub fn new(x: i32, y: i32) -> Point2d {
Point2d { x, y }
}
pub fn neighbours(&self) -> Vec<Point2d> {
Vec2d::directions().iter().map(|v| self + v).collect()
}
}
pub fn p2d(x: i32, y: i32) -> Point2d {
Point2d::new(x, y)
}
impl Add<Vec2d> for Point2d {
type Output = Point2d;
fn add(self, other: Vec2d) -> Point2d {
let x = self.x + other.x;
let y = self.y + other.y;
Point2d { x, y }
}
}
impl<'a> Add<&'a Vec2d> for Point2d {
type Output = Point2d;
fn add(self, other: &'a Vec2d) -> Point2d {
let x = self.x + other.x;
let y = self.y + other.y;
Point2d { x, y }
}
}
impl<'a> Add<Vec2d> for &'a Point2d {
type Output = Point2d;
fn add(self, other: Vec2d) -> Point2d {
let x = self.x + other.x;
let y = self.y + other.y;
Point2d { x, y }
}
}
impl<'a> Add<&'a Vec2d> for &'a Point2d {
type Output = Point2d;
fn add(self, other: &'a Vec2d) -> Point2d {
let x = self.x + other.x;
let y = self.y + other.y;
Point2d { x, y }
}
}

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