phantop/doukutsu-rs
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useless probably

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Alula 2024-08-12 22:40:24 +02:00
parent e8744a1aed
commit 256437bec6
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GPG key ID: 3E00485503A1D8BA
1 changed files with 32 additions and 8 deletions
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40
src/game/map.rs
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@ -25,9 +25,33 @@ pub struct Map {
pub tile_size: TileSize, pub tile_size: TileSize,
} }
static SOLID_TILES: [u8; 8] = [0x05, 0x41, 0x43, 0x46, 0x54, 0x55, 0x56, 0x57]; struct BitLUT {
static WATER_TILES: [u8; 16] = bits: [u64; 4]
[0x02, 0x60, 0x61, 0x62, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0xa0, 0xa1, 0xa2, 0xa3]; }
impl BitLUT {
const fn new<const N: usize>(bits: [u8; N]) -> Self {
let mut result = Self { bits: [0; 4] };
let mut i = 0;
loop {
if i >= N {
break;
}
result.bits[i / 64] |= (bits[i] as u64) << (i % 64);
i += 1;
}
result
}
const fn contains(&self, bit: u8) -> bool {
let idx = bit as usize;
(self.bits[idx / 64] & (1 << (idx % 64))) != 0
}
}
static SOLID_TILES: BitLUT = BitLUT::new([0x05, 0x41, 0x43, 0x46, 0x54, 0x55, 0x56, 0x57]);
static WATER_TILES: BitLUT = BitLUT::new([0x02, 0x60, 0x61, 0x62, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0xa0, 0xa1, 0xa2, 0xa3]);
#[derive(Copy, Clone, PartialEq)] #[derive(Copy, Clone, PartialEq)]
pub enum WaterRegionType { pub enum WaterRegionType {
@ -309,7 +333,7 @@ impl Map {
let attr = self.get_attribute(x as usize, y as usize); let attr = self.get_attribute(x as usize, y as usize);
if !WATER_TILES.contains(&attr) { if !WATER_TILES.contains(attr) {
continue; continue;
} }
@ -372,7 +396,7 @@ impl Map {
} }
let attr = self.get_attribute(ex as usize, ey as usize); let attr = self.get_attribute(ex as usize, ey as usize);
if WATER_TILES.contains(&attr) { if WATER_TILES.contains(attr) {
queue.push((flow_flags, ex as u16, ey as u16)); queue.push((flow_flags, ex as u16, ey as u16));
} }
}; };
@ -415,11 +439,11 @@ impl Map {
let attr = self.get_attribute(x as usize, line as usize); let attr = self.get_attribute(x as usize, line as usize);
let attr_up = if rect.top > 0 { self.get_attribute(x as usize, line_up as usize) } else { 0x41 }; let attr_up = if rect.top > 0 { self.get_attribute(x as usize, line_up as usize) } else { 0x41 };
if !SOLID_TILES.contains(&attr_up) && !WATER_TILES.contains(&attr_up) { if !SOLID_TILES.contains(attr_up) && !WATER_TILES.contains(attr_up) {
make_water_line = true; make_water_line = true;
} }
if !walked[idx] && WATER_TILES.contains(&attr) { if !walked[idx] && WATER_TILES.contains(attr) {
length += 1; length += 1;
} else if length != 0 { } else if length != 0 {
let bounds = Rect::new(x - length, line, x, line); let bounds = Rect::new(x - length, line, x, line);
@ -432,7 +456,7 @@ impl Map {
length = 1; length = 1;
let attr_up = let attr_up =
if rect.top > 0 { self.get_attribute(x as usize + 1, line_up as usize) } else { 0x41 }; if rect.top > 0 { self.get_attribute(x as usize + 1, line_up as usize) } else { 0x41 };
make_water_line = !SOLID_TILES.contains(&attr_up) && !WATER_TILES.contains(&attr_up); make_water_line = !SOLID_TILES.contains(attr_up) && !WATER_TILES.contains(attr_up);
} else { } else {
length = 0; length = 0;
} }