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/*
Hurry Curry! - a game about cooking
Copyright (C) 2025 Hurry Curry! Contributors
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 super::{Entity, EntityContext};
use anyhow::Result;
use hurrycurry_protocol::{glam::Vec2, Character, PacketS, PlayerClass, PlayerID};
use rand::random;
pub struct Tram {
pub length: usize,
pub character: Character,
pub ids: Vec<PlayerID>,
pub points: Vec<Vec2>,
pub progress: f32,
pub spacing: f32,
pub smoothing: f32,
}
impl Entity for Tram {
fn finished(&self) -> bool {
false
}
fn tick(&mut self, c: EntityContext<'_>) -> Result<()> {
if self.ids.is_empty() {
for i in 0..self.length {
let id = PlayerID(random());
c.packet_in.push_back(PacketS::Join {
name: format!("Tram {i}"),
character: self.character,
class: PlayerClass::Tram,
id: Some(id),
position: self.points.first().copied(),
});
self.ids.push(id);
}
}
for (i, id) in self.ids.iter().enumerate() {
if let Some(player) = c.game.players.get(id) {
let t = self.progress + self.spacing * i as f32;
let i = t.trunc() as usize;
let p_a = self.points[i % self.points.len()];
let p_b = self.points[(i + 1) % self.points.len()];
let p = p_a.lerp(p_b, t.fract());
if p.distance(player.movement.position) < self.smoothing {
self.progress += 0.1;
self.progress %= self.points.len() as f32;
};
let dir = if player.movement.position.distance(p) > self.smoothing * 0.8 {
p - player.movement.position
} else {
Vec2::ZERO
};
c.packet_in.push_back(PacketS::Movement {
player: *id,
dir,
boost: false,
pos: None,
});
}
}
Ok(())
}
fn destructor(&mut self, c: EntityContext<'_>) {
for id in self.ids.drain(..) {
c.packet_in.push_back(PacketS::Leave { player: id })
}
}
}
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