3 files changed, 226 insertions, 0 deletions
diff --git a/server/client-lib/Cargo.toml b/server/client-lib/Cargo.toml
new file mode 100644
index 00000000..6a3e7f98
--- /dev/null
+++ b/server/client-lib/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "hurrycurry-client-lib"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+hurrycurry-protocol = { path = "../protocol" }
diff --git a/server/client-lib/src/lib.rs b/server/client-lib/src/lib.rs
new file mode 100644
index 00000000..74f6f10c
--- /dev/null
+++ b/server/client-lib/src/lib.rs
@@ -0,0 +1,167 @@
+/*
+    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/>.
+
+*/
+pub mod spatial_index;
+
+use hurrycurry_protocol::{
+    glam::IVec2, movement::MovementBase, ClientGamedata, ItemIndex, ItemLocation, Message, PacketC,
+    PlayerID, Score, TileIndex,
+};
+use spatial_index::SpatialIndex;
+use std::{
+    collections::{HashMap, HashSet},
+    sync::Arc,
+    time::Instant,
+};
+
+#[derive(Debug, PartialEq)]
+pub struct Item {
+    pub kind: ItemIndex,
+    pub progress: Option<(f32, bool)>,
+}
+
+pub struct Tile {
+    pub kind: TileIndex,
+    pub item: Option<Item>,
+}
+
+pub struct Player {
+    pub name: String,
+    pub character: i32,
+    pub interacting: Option<IVec2>,
+    pub item: Option<Item>,
+    pub communicate_persist: Option<Message>,
+
+    pub movement: MovementBase,
+}
+
+pub struct Game {
+    pub data: Arc<ClientGamedata>,
+    pub tiles: HashMap<IVec2, Tile>,
+    pub walkable: HashSet<IVec2>,
+    pub players: HashMap<PlayerID, Player>,
+    pub players_spatial_index: SpatialIndex<PlayerID>,
+    pub end: Option<Instant>,
+    pub lobby: bool,
+
+    pub environment_effects: HashSet<String>,
+    pub score: Score,
+}
+
+impl Game {
+    pub fn apply_packet(&mut self, packet: PacketC) {
+        match packet {
+            PacketC::Data { data } => {
+                self.data = Arc::new(data);
+            }
+            PacketC::AddPlayer {
+                id,
+                position,
+                character,
+                name,
+            } => {
+                self.players.insert(
+                    id,
+                    Player {
+                        name,
+                        character,
+                        interacting: None,
+                        item: None,
+                        communicate_persist: None,
+                        movement: MovementBase::new(position),
+                    },
+                );
+            }
+            PacketC::RemovePlayer { id } => {
+                self.players.remove(&id);
+            }
+            PacketC::Position {
+                player,
+                pos,
+                rot,
+                boosting,
+            } => {
+                if let Some(p) = self.players.get_mut(&player) {
+                    p.movement.position = pos;
+                    p.movement.rotation = rot;
+                    p.movement.boosting = boosting;
+                }
+            }
+
+            PacketC::MoveItem { from, to } => {
+                *self.get_item(to) = self.get_item(from).take();
+            }
+            PacketC::SetItem { location, item } => {
+                *self.get_item(location) = item.map(|kind| Item {
+                    kind,
+                    progress: None,
+                });
+            }
+            PacketC::SetProgress {
+                item,
+                progress,
+                warn,
+            } => {
+                self.get_item(item).as_mut().unwrap().progress = progress.map(|s| (s, warn));
+            }
+            PacketC::UpdateMap {
+                tile,
+                kind,
+                neighbors: _,
+            } => {
+                if let Some(kind) = kind {
+                    self.tiles.insert(tile, Tile { kind, item: None });
+                    if self.data.tile_collide[kind.0] {
+                        self.walkable.remove(&tile);
+                    } else {
+                        self.walkable.insert(tile);
+                    }
+                } else {
+                    self.tiles.remove(&tile);
+                    self.walkable.remove(&tile);
+                }
+            }
+            PacketC::Communicate {
+                player,
+                message,
+                persist,
+            } => {
+                if persist {
+                    if let Some(player) = self.players.get_mut(&player) {
+                        player.communicate_persist = message;
+                    }
+                }
+            }
+            PacketC::Score(score) => {
+                self.score = score;
+            }
+            PacketC::SetIngame { state: _, lobby } => {
+                self.lobby = lobby;
+            }
+            PacketC::Environment { effects } => {
+                self.environment_effects = effects;
+            }
+            _ => (),
+        }
+    }
+    pub fn get_item(&mut self, location: ItemLocation) -> &mut Option<Item> {
+        match location {
+            ItemLocation::Tile(pos) => &mut self.tiles.get_mut(&pos).unwrap().item,
+            ItemLocation::Player(pid) => &mut self.players.get_mut(&pid).unwrap().item,
+        }
+    }
+}
diff --git a/server/client-lib/src/spatial_index.rs b/server/client-lib/src/spatial_index.rs
new file mode 100644
index 00000000..d4bd1776
--- /dev/null
+++ b/server/client-lib/src/spatial_index.rs
@@ -0,0 +1,52 @@
+/*
+    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::Vec2;
+use std::{collections::HashMap, hash::Hash};
+
+// TODO stub implementation. please implement
+pub struct SpatialIndex<T> {
+    entries: HashMap<T, Vec2>,
+}
+
+impl<T: Eq + Hash + Copy> SpatialIndex<T> {
+    pub fn update_entry(&mut self, id: T, position: Vec2) {
+        self.entries.insert(id, position);
+    }
+    pub fn remove_entry(&mut self, id: T) {
+        self.entries.remove(&id);
+    }
+    pub fn all(&self, mut cb: impl FnMut(T, Vec2)) {
+        for (&e, &pos) in &self.entries {
+            cb(e, pos)
+        }
+    }
+    pub fn query(&self, position: Vec2, radius: f32, mut cb: impl FnMut(T, Vec2)) {
+        self.all(|pl, p| {
+            if p.distance(position) < radius {
+                cb(pl, p)
+            }
+        })
+    }
+}
+impl<T> Default for SpatialIndex<T> {
+    fn default() -> Self {
+        Self {
+            entries: Default::default(),
+        }
+    }
+}