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|
use teleia::*;
pub const WIDTH: usize = 64;
pub const HEIGHT: usize = 64;
#[derive(Debug, Clone, Copy, PartialOrd, Ord, PartialEq, Eq)]
pub struct Pos {
pub x: i32, pub y: i32,
}
impl Pos {
pub fn new(x: i32, y: i32) -> Self { Self { x, y } }
}
impl std::ops::Add for Pos {
type Output = Pos;
fn add(self, rhs: Self) -> Self { Self {x: self.x + rhs.x, y: self.y + rhs.y } }
}
#[derive(Debug, Clone)]
pub struct CharPair {
pub first: char,
pub second: Option<char>,
}
impl Default for CharPair {
fn default() -> Self {
Self {
first: 'a',
second: Some('b'),
}
}
}
pub struct Layer<T> {
pub data: [T; WIDTH * HEIGHT],
}
impl<T> Layer<T> {
pub fn new() -> Self where T: Default {
Self {
data: [(); WIDTH * HEIGHT].map(|_| T::default()),
}
}
pub fn get(&self, p: Pos) -> Option<&T> {
if p.x < 0 || p.x >= WIDTH as _ || p.y < 0 || p.y >= HEIGHT as _ { return None }
let idx = p.x as usize + p.y as usize * WIDTH;
Some(&self.data[idx])
}
pub fn set(&mut self, p: Pos, x: T) {
if p.x < 0 || p.x >= WIDTH as _ || p.y < 0 || p.y >= HEIGHT as _ { return }
let idx = p.x as usize + p.y as usize * WIDTH;
self.data[idx] = x;
}
}
impl Layer<CharPair> {
pub fn from_str(&mut self, s: &str) {
let chars: Vec<char> = s.chars().collect();
if chars.is_empty() { return }
let mut i: usize = 0;
for row in 0..64 {
for col in 0..64 {
let first = chars[i]; i += 1; i %= chars.len();
let second = Some(chars[i]); i += 1; i %= chars.len();
self.set(Pos::new(col, row), CharPair { first, second });
}
}
}
}
impl Layer<glam::Vec3> {
pub fn from_framebuffer(&mut self, ctx: &context::Context, fb: &framebuffer::Framebuffer) {
fb.get_pixels(ctx, &mut self.data);
}
pub fn get_surrounding(&self, pos: Pos, bgcolor: &glam::Vec3) -> u8 {
let offs = [
Pos::new(-1, -1),
Pos::new(0, -1),
Pos::new(1, -1),
Pos::new(-1, 0),
Pos::new(1, 0),
Pos::new(-1, 1),
Pos::new(0, 1),
Pos::new(1, 1),
];
let mut ret = 0;
for o in offs {
ret <<= 1;
let v = (self.get(pos + o) != Some(bgcolor)) as u8;
ret |= v;
}
ret
}
}
pub struct Terminal {
pub font: font::Bitmap,
pub base_color: Layer<glam::Vec3>,
pub set_color: Layer<glam::Vec3>,
pub set_char: Layer<CharPair>,
}
impl Terminal {
pub fn new(ctx: &context::Context) -> Self {
let mut set_char = Layer::new();
set_char.from_str("lcolonq");
Self {
font: font::Bitmap::from_image(ctx, 6, 12, 96, 72, include_bytes!("assets/fonts/terminus.png")),
base_color: Layer::new(),
set_color: Layer::new(),
set_char,
}
}
pub fn get_color(&self, pos: Pos) -> glam::Vec3 {
if let Some(c) = self.set_color.get(pos) {
if *c != glam::Vec3::new(0.0, 0.0, 0.0) {
return *c;
}
}
if let Some(c) = self.base_color.get(pos) {
if *c != glam::Vec3::new(0.0, 0.0, 0.0) {
return *c;
}
}
glam::Vec3::new(0.0, 0.0, 0.0)
}
pub fn update(&mut self, ctx: &context::Context, fb: &framebuffer::Framebuffer) {
self.base_color.from_framebuffer(ctx, fb);
}
pub fn fill_string(&mut self, s: &str) {
self.set_char.from_str(s);
}
pub fn outline_pattern(&self, pos: Pos) -> Option<String> {
let sur = self.base_color.get_surrounding(pos, &glam::Vec3::new(0.0, 0.0, 0.0));
let res = match sur {
0b01101011 | 0b01101111 => " |",
0b11010110 | 0b11010111 => "| ",
0b00101011 | 0b00101111 | 0b00101110 | 0b00101100 | 0b00001011 => " /",
0b10010110 | 0b10010111 | 0b10010011 | 0b10010001 | 0b00010110 => "\\ ",
0b00111111 => "-/", 0b10011111 => "\\-",
0b00011111 => "--", 0b00000111 => "__",
0b00001111 => " _", 0b00010111 => "_ ",
_ => return None,
};
Some(res.to_owned())
}
pub fn render(&self, ctx: &context::Context, pos: &glam::Vec2) {
let mut s = String::new();
let mut colors = Vec::new();
for row in 0..64 {
for col in 0..64 {
let pos = Pos::new(col, row);
let c = self.get_color(pos);
colors.push(c); colors.push(c);
let new = if let Some(p) = self.set_char.get(pos) {
if c == glam::Vec3::new(0.0, 0.0, 0.0) {
String::from(" ")
} else if let Some(pat) = self.outline_pattern(pos) {
pat
} else {
format!("{}{}", p.first, if let Some(snd) = p.second { snd } else { ' ' })
}
} else {
String::from(" ")
};
s += &new;
}
s += "\n";
colors.push(glam::Vec3::new(1.0, 1.0, 1.0));
}
self.font.render_text_helper(ctx, pos, &s, &colors);
}
}
|
