diff options
Diffstat (limited to 'server/src/customer/pathfinding.rs')
-rw-r--r-- | server/src/customer/pathfinding.rs | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/server/src/customer/pathfinding.rs b/server/src/customer/pathfinding.rs deleted file mode 100644 index d1e1e997..00000000 --- a/server/src/customer/pathfinding.rs +++ /dev/null @@ -1,109 +0,0 @@ -/* - Hurry Curry! - a game about cooking - Copyright 2024 metamuffin - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU Affero General Public License as published by - the Free Software Foundation, version 3 of the License only. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Affero General Public License for more details. - - You should have received a copy of the GNU Affero General Public License - along with this program. If not, see <https://www.gnu.org/licenses/>. - -*/ -use hurrycurry_protocol::{ - glam::{IVec2, Vec2}, movement::MovementBase, PacketS -}; -use log::trace; -use std::{ - cmp::Ordering, - collections::{BinaryHeap, HashMap, HashSet}, -}; - -pub struct Path(Vec<Vec2>); - -impl Path { - pub fn execute_tick( - &mut self, - player: &mut MovementBase, - walkable: &HashSet<IVec2>, - dt: f32, - ) -> PacketS { - if let Some(next) = self.0.last().copied() { - trace!("next {next}"); - if next.distance(player.position) < if self.0.len() == 1 { 0.1 } else { 0.6 } { - self.0.pop(); - } - player.update( - &walkable, - (next - player.position).normalize_or_zero() * 0.5, - false, - dt, - ) - } else { - player.update(&walkable, Vec2::ZERO, false, dt) - } - } - pub fn is_done(&self) -> bool { - self.0.is_empty() - } -} - -pub fn find_path(walkable: &HashSet<IVec2>, from: IVec2, to: IVec2) -> Option<Path> { - #[derive(Debug, PartialEq, Eq)] - struct Open(i32, IVec2, IVec2, i32); - impl PartialOrd for Open { - fn partial_cmp(&self, other: &Self) -> Option<Ordering> { - self.0.partial_cmp(&other.0) - } - } - impl Ord for Open { - fn cmp(&self, other: &Self) -> Ordering { - self.0.cmp(&other.0) - } - } - - let mut visited = HashMap::new(); - let mut open = BinaryHeap::new(); - open.push(Open(1, from, from, 0)); - - loop { - let Some(Open(_, pos, f, distance)) = open.pop() else { - return None; - }; - if visited.contains_key(&pos) { - continue; - } - visited.insert(pos, f); - if pos == to { - break; - } - for dir in [IVec2::NEG_X, IVec2::NEG_Y, IVec2::X, IVec2::Y] { - let next = pos + dir; - if walkable.contains(&next) { - open.push(Open( - -(distance + next.distance_squared(to).isqrt()), - next, - pos, - distance + 1, - )); - } - } - } - - let mut path = Vec::new(); - let mut c = to; - loop { - path.push(c.as_vec2() + 0.5); - let cn = visited[&c]; - if cn == c { - break; - } - c = cn - } - Some(Path(path)) -} |