padme_core/ppu/
sprite.rs

1use core::cmp::Ordering;
2
3const FLAG_BGWIN_PRIO: u8               = 0b10000000;
4const FLAG_Y_FLIP: u8                   = 0b01000000;
5const FLAG_X_FLIP: u8                   = 0b00100000;
6const FLAG_PALETTE_NUMBER: u8           = 0b00010000;
7
8#[derive(Clone, Copy, Eq)]
9pub struct Sprite {
10    /// X coord
11    pub x: u8,
12    /// Y coord
13    pub y: u8,
14    /// Tile index in the data
15    pub tile_index: u8,
16    /// Tile attributes
17    attrs: u8,
18}
19
20impl Sprite {
21    pub fn new(x: u8, y: u8, tile_index: u8, attrs: u8) -> Self {
22        Self { x, y, tile_index, attrs }
23    }
24
25    pub fn default() -> Self {
26        Self { x: 0, y: 0, tile_index: 0, attrs: 0 }
27    }
28
29    #[inline]
30    pub fn is_x_flipped(&self) -> bool {
31        is_set!(self.attrs, FLAG_X_FLIP)
32    }
33
34    #[inline]
35    pub fn is_y_flipped(&self) -> bool {
36        is_set!(self.attrs, FLAG_Y_FLIP)
37    }
38
39    #[inline]
40    pub fn is_bgwin_prio(&self) -> bool {
41        is_set!(self.attrs, FLAG_BGWIN_PRIO)
42    }
43
44    #[inline]
45    pub fn palette_number(&self) -> u8 {
46        is_set!(self.attrs, FLAG_PALETTE_NUMBER) as u8
47    }
48}
49
50impl Ord for Sprite {
51    fn cmp(&self, other: &Self) -> Ordering {
52        self.x.cmp(&other.x)
53    }
54}
55
56impl PartialOrd for Sprite {
57    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
58        Some(self.cmp(other))
59    }
60}
61
62impl PartialEq for Sprite {
63    fn eq(&self, other: &Self) -> bool {
64        self.x == other.x
65    }
66}
padme_core/ppu/sprite.rs

padme_core/ppu/
sprite.rs
