HexoDSP/src/cell_dir.rs

131 lines
3.6 KiB
Rust
Raw Normal View History

// Copyright (c) 2021 Weird Constructor <weirdconstructor@gmail.com>
// This is a part of HexoDSP. Released under (A)GPLv3 or any later.
// See README.md and COPYING for details.
#[derive(Debug, Clone, Copy, PartialEq, PartialOrd, Eq, Ord)]
pub enum CellDir {
TR,
BR,
B,
BL,
TL,
T,
/// Center
C
}
impl CellDir {
pub fn from(edge: u8) -> Self {
match edge {
0 => CellDir::TR,
1 => CellDir::BR,
2 => CellDir::B,
3 => CellDir::BL,
4 => CellDir::TL,
5 => CellDir::T,
_ => CellDir::C,
}
}
pub fn flip(&self) -> Self {
match self {
CellDir::TR => CellDir::BL,
CellDir::BR => CellDir::TL,
CellDir::B => CellDir::T,
CellDir::BL => CellDir::TR,
CellDir::TL => CellDir::BR,
CellDir::T => CellDir::B,
CellDir::C => CellDir::T,
}
}
#[inline]
pub fn is_output(&self) -> bool {
2021-07-23 04:35:03 +00:00
let e = self.as_edge();
e <= 2
}
#[inline]
pub fn is_input(&self) -> bool {
!self.is_output()
}
#[inline]
2021-07-23 04:35:03 +00:00
pub fn as_edge(&self) -> u8 {
*self as u8
}
2021-06-07 03:06:04 +00:00
pub fn as_menu_pos(&self) -> (i32, i32) {
match self {
// out 1 - TR
CellDir::TR => (0, 1),
// out 2 - BR
CellDir::BR => (1, 1),
// out 3 - B
CellDir::B => (0, 1),
// in 3 - BL
CellDir::BL => (-1, 1),
// in 2 - TL
CellDir::TL => (-1, 0),
// in 1 - T
CellDir::T => (0, -1),
_ => (0, 0),
}
}
2021-06-07 03:06:04 +00:00
pub fn as_offs(&self, x: usize) -> (i32, i32) {
let even = x % 2 == 0;
match self {
// out 1 - TR
CellDir::TR => (1, if even { -1 } else { 0 }),
// out 2 - BR
CellDir::BR => (1, if even { 0 } else { 1 }),
// out 3 - B
CellDir::B => (0, 1),
// in 3 - BL
CellDir::BL => (-1, if even { 0 } else { 1 }),
// in 2 - TL
CellDir::TL => (-1, if even { -1 } else { 0 }),
// in 1 - T
CellDir::T => (0, -1),
_ => (0, 0),
}
}
/// If it returns 0 they are not adjacent,
/// if it returns 1 the data flow direction is pos_a => pos_b
/// if it returns -1 the data flow direction is pos_b => pos_a
pub fn are_adjacent(pos_a: (usize, usize), pos_b: (usize, usize)) -> Option<CellDir> {
let ipos_a = (pos_a.0 as i32, pos_a.1 as i32);
let ipos_b = (pos_b.0 as i32, pos_b.1 as i32);
let (ox, oy) = CellDir::T.as_offs(pos_a.0);
if ipos_b == (ipos_a.0 + ox, ipos_a.1 + oy) {
return Some(CellDir::T);
}
let (ox, oy) = CellDir::TL.as_offs(pos_a.0);
if ipos_b == (ipos_a.0 + ox, ipos_a.1 + oy) {
return Some(CellDir::TL);
}
let (ox, oy) = CellDir::BL.as_offs(pos_a.0);
if ipos_b == (ipos_a.0 + ox, ipos_a.1 + oy) {
return Some(CellDir::BL);
}
let (ox, oy) = CellDir::TR.as_offs(pos_a.0);
if ipos_b == (ipos_a.0 + ox, ipos_a.1 + oy) {
return Some(CellDir::TR);
}
let (ox, oy) = CellDir::BR.as_offs(pos_a.0);
if ipos_b == (ipos_a.0 + ox, ipos_a.1 + oy) {
return Some(CellDir::BR);
}
let (ox, oy) = CellDir::B.as_offs(pos_a.0);
if ipos_b == (ipos_a.0 + ox, ipos_a.1 + oy) {
return Some(CellDir::B);
}
None
}
}