1 files changed, 344 insertions, 0 deletions
diff --git a/pixel-client/src/game.rs b/pixel-client/src/game.rs
new file mode 100644
index 00000000..7d8e466a
--- /dev/null
+++ b/pixel-client/src/game.rs
@@ -0,0 +1,344 @@
+/*
+    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 crate::{
+    helper::Vec2InterpolateExt,
+    render::{
+        misc::MiscTextures,
+        sprite::{Sprite, SpriteDraw},
+        AtlasLayout, SpriteRenderer,
+    },
+    tilemap::Tilemap,
+};
+use hurrycurry_protocol::{
+    glam::{IVec2, Vec2},
+    movement::MovementBase,
+    ClientGamedata, ItemIndex, ItemLocation, PacketC, PacketS, PlayerID, TileIndex,
+};
+use log::{info, warn};
+use sdl2::{
+    keyboard::{KeyboardState, Scancode},
+    rect::Rect,
+};
+use std::collections::{HashMap, HashSet, VecDeque};
+
+pub struct Game {
+    data: ClientGamedata,
+    tiles: HashMap<IVec2, Tile>,
+    tilemap: Tilemap,
+    collision_map: HashSet<IVec2>,
+    players: HashMap<PlayerID, Player>,
+    my_id: PlayerID,
+
+    camera_center: Vec2,
+    misc_textures: MiscTextures,
+    item_sprites: Vec<Sprite>,
+    movement_send_cooldown: f32,
+    interacting: bool,
+    score: Score,
+}
+
+#[derive(Debug, Default)]
+pub struct Score {
+    points: i64,
+    demands_failed: usize,
+    demands_completed: usize,
+    time_remaining: f32,
+}
+
+pub struct Tile {
+    _kind: TileIndex,
+    item: Option<Item>,
+}
+
+pub struct Player {
+    movement: MovementBase,
+    item: Option<Item>,
+    _name: String,
+    _character: i32,
+}
+
+pub struct Item {
+    position: Vec2,
+    kind: ItemIndex,
+    progress: Option<(f32, bool)>,
+}
+
+impl Game {
+    pub fn new(layout: &AtlasLayout) -> Self {
+        Self {
+            tiles: HashMap::new(),
+            players: HashMap::new(),
+            tilemap: Tilemap::default(),
+            my_id: PlayerID(0),
+            data: ClientGamedata::default(),
+            collision_map: HashSet::new(),
+            movement_send_cooldown: 0.,
+            misc_textures: MiscTextures::init(layout),
+            item_sprites: Vec::new(),
+            interacting: false,
+            score: Score::default(),
+            camera_center: Vec2::ZERO,
+        }
+    }
+
+    pub fn packet_in(&mut self, packet: PacketC, renderer: &mut SpriteRenderer) {
+        match packet {
+            PacketC::Init { id } => self.my_id = id,
+            PacketC::Data { data } => {
+                self.tilemap.init(&data.tile_names, renderer.atlas_layout());
+                self.item_sprites = data
+                    .item_names
+                    .iter()
+                    .map(|name| {
+                        Sprite::new(
+                            renderer
+                                .atlas_layout()
+                                .get(&format!("{name}+a"))
+                                .copied()
+                                .unwrap_or_else(|| {
+                                    warn!("no sprite for item {name:?}");
+                                    Rect::new(0, 0, 32, 24)
+                                }),
+                            Vec2::new(0., 0.0),
+                            0.1,
+                        )
+                    })
+                    .collect();
+                self.data = data;
+            }
+            PacketC::UpdateMap {
+                tile,
+                kind,
+                neighbors,
+            } => {
+                if let Some(kind) = kind {
+                    self.tiles.insert(
+                        tile,
+                        Tile {
+                            _kind: kind,
+                            item: None,
+                        },
+                    );
+                    if self.data.tile_collide[kind.0] {
+                        self.collision_map.remove(&tile);
+                    } else {
+                        self.collision_map.insert(tile);
+                    }
+                } else {
+                    self.tiles.remove(&tile);
+                    self.collision_map.remove(&tile);
+                }
+                self.tilemap.set(tile, kind, neighbors);
+            }
+            PacketC::AddPlayer {
+                id,
+                position,
+                character,
+                name,
+            } => {
+                info!("add player {} {name:?}", id.0);
+                self.players.insert(
+                    id,
+                    Player {
+                        _character: character,
+                        _name: name,
+                        item: None,
+                        movement: MovementBase {
+                            position,
+                            facing: Vec2::X,
+                            rotation: 0.,
+                            velocity: Vec2::ZERO,
+                            boosting: false,
+                            stamina: 0.,
+                        },
+                    },
+                );
+            }
+            PacketC::RemovePlayer { id } => {
+                info!("remove player {}", id.0);
+                self.players.remove(&id);
+            }
+            PacketC::Position {
+                player,
+                pos,
+                rot,
+                boosting,
+            } => {
+                if player != self.my_id {
+                    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,
+                    position: Vec2::ZERO,
+                    progress: None,
+                })
+            }
+            PacketC::SetProgress {
+                item,
+                progress,
+                warn,
+            } => {
+                self.get_item(item).as_mut().unwrap().progress = progress.map(|s| (s, warn));
+            }
+            PacketC::Collide {
+                player: _,
+                force: _,
+            } => (),
+            PacketC::Communicate { .. } => {
+                // TODO
+            }
+            PacketC::ServerMessage { text: _ } => {
+                // TODO
+            }
+            PacketC::Score {
+                points,
+                demands_failed,
+                demands_completed,
+                time_remaining,
+            } => {
+                self.score.points = points;
+                self.score.demands_completed = demands_completed;
+                self.score.demands_failed = demands_failed;
+                self.score.time_remaining = time_remaining.unwrap_or(-1.);
+            }
+            PacketC::SetIngame { state: _, lobby: _ } => {
+                // TODO
+            }
+            PacketC::Error { message } => {
+                warn!("server error: {message:?}")
+            }
+            _ => (),
+        }
+    }
+
+    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,
+        }
+    }
+
+    pub fn tick(&mut self, dt: f32, keyboard: &KeyboardState, packet_out: &mut VecDeque<PacketS>) {
+        let mut direction = IVec2::new(
+            keyboard.is_scancode_pressed(Scancode::D) as i32
+                - keyboard.is_scancode_pressed(Scancode::A) as i32,
+            keyboard.is_scancode_pressed(Scancode::S) as i32
+                - keyboard.is_scancode_pressed(Scancode::W) as i32,
+        )
+        .as_vec2();
+        let boost = keyboard.is_scancode_pressed(Scancode::K);
+        let interact = keyboard.is_scancode_pressed(Scancode::Space)
+            | keyboard.is_scancode_pressed(Scancode::J);
+
+        if interact {
+            direction *= 0.;
+        }
+
+        self.movement_send_cooldown -= dt;
+        let send_movement = self.movement_send_cooldown < 0.;
+        if send_movement {
+            self.movement_send_cooldown += 0.04
+        }
+
+        self.score.time_remaining -= dt;
+        self.score.time_remaining -= self.score.time_remaining.max(0.);
+
+        if interact != self.interacting {
+            if interact {
+                packet_out.push_back(PacketS::Interact {
+                    pos: Some(self.players[&self.my_id].movement.get_interact_target()),
+                });
+            } else {
+                packet_out.push_back(PacketS::Interact { pos: None });
+            }
+            self.interacting = interact;
+        }
+
+        if let Some(player) = self.players.get_mut(&self.my_id) {
+            let movement_packet = player
+                .movement
+                .update(&self.collision_map, direction, boost, dt);
+            if send_movement {
+                packet_out.push_back(movement_packet);
+            }
+
+            self.camera_center.exp_to(player.movement.position, dt * 5.);
+        }
+
+        for (_pid, player) in &mut self.players {
+            if let Some(item) = &mut player.item {
+                item.position = player.movement.position
+            }
+        }
+        for (pos, tile) in &mut self.tiles {
+            if let Some(item) = &mut tile.item {
+                item.position = pos.as_vec2() + 0.5
+            }
+        }
+    }
+
+    pub fn draw(&self, ctx: &mut SpriteRenderer) {
+        ctx.set_view(-self.camera_center + (ctx.size / ctx.get_scale() / 2.), 1.);
+
+        self.tilemap.draw(ctx);
+
+        for p in self.players.values() {
+            ctx.draw_world(self.misc_textures.player.at(p.movement.position));
+            if let Some(item) = &p.item {
+                item.draw(ctx, &self.item_sprites, &self.misc_textures)
+            }
+        }
+        for tile in self.tiles.values() {
+            if let Some(item) = &tile.item {
+                item.draw(ctx, &self.item_sprites, &self.misc_textures)
+            }
+        }
+    }
+}
+
+impl Item {
+    pub fn draw(&self, ctx: &mut SpriteRenderer, item_sprites: &[Sprite], misc: &MiscTextures) {
+        ctx.draw_world(item_sprites[self.kind.0].at(self.position));
+        if let Some((progress, warn)) = self.progress {
+            let (bg, fg) = if warn {
+                ([100, 0, 0, 200], [255, 0, 0, 200])
+            } else {
+                ([0, 100, 0, 200], [0, 255, 0, 200])
+            };
+            ctx.draw_world(SpriteDraw::overlay(
+                misc.solid,
+                self.position + Vec2::new(-0.5, -1.3),
+                Vec2::new(1., 0.2),
+                Some(bg),
+            ));
+            ctx.draw_world(SpriteDraw::overlay(
+                misc.solid,
+                self.position + Vec2::new(-0.5, -1.3),
+                Vec2::new(progress, 0.2),
+                Some(fg),
+            ))
+        }
+    }
+}