Added dungeon bosses, boss loot, boss arenas

CHANGELOG.md

@@ -73,6 +73,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added tab completion in chat for player names and chat commands
 - Added server persistence for character stats
 - Added a popup when setting your character's waypoint
+- Added dungeon arenas
+- Added dungeon bosses and rare boss loot
 
 ### Changed
 

assets/common/items/boss_drops/lantern.ron

@@ -0,0 +1,12 @@
+Item(
+    name: "Magic Lantern",
+    description: "Illuminates even the darkest dungeon\nA great monster was slain for this item",
+    kind: Lantern(
+        (
+            kind: Blue0,
+            color: (r: 220, g: 220, b: 255),
+            strength_thousandths: 6500,
+            flicker_thousandths: 300,
+        ),
+    ),
+)

assets/common/items/boss_drops/potions.ron

@@ -0,0 +1,12 @@
+Item(
+    name: "Powerful Potion",
+    description: "Restores 100 Health\nA great monster was slain for this item\n\n<Right-Click to use>",
+    kind: Consumable(
+        kind: Potion,
+        effect: Health((
+            amount: 100,
+            cause: Item,
+        )),
+		amount: 15,
+    ),
+)

assets/common/items/boss_drops/xp_potion.ron

@@ -0,0 +1,8 @@
+Item(
+    name: "Potion of Skill",
+    description: "Provides 250 XP to the drinker\n\n<Right-Click to use>",
+    kind: Consumable(
+        kind: Potion,
+        effect: Xp(250),
+    ),
+)

common/src/comp/inventory/item/mod.rs

@@ -123,6 +123,8 @@ impl Item {
         }
     }
 
+    pub fn expect_from_asset(asset: &str) -> Self { (*assets::load_expect::<Self>(asset)).clone() }
+
     pub fn set_amount(&mut self, give_amount: u32) -> Result<(), assets::Error> {
         use ItemKind::*;
         match self.kind {
@@ -235,3 +237,10 @@ impl Item {
 impl Component for Item {
     type Storage = FlaggedStorage<Self, IDVStorage<Self>>;
 }
+
+#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
+pub struct ItemDrop(pub Item);
+
+impl Component for ItemDrop {
+    type Storage = FlaggedStorage<Self, IDVStorage<Self>>;
+}

common/src/comp/mod.rs

@@ -31,7 +31,9 @@ pub use controller::{
 pub use energy::{Energy, EnergySource};
 pub use inputs::CanBuild;
 pub use inventory::{
-    item, item::Item, slot, Inventory, InventoryUpdate, InventoryUpdateEvent, MAX_PICKUP_RANGE_SQR,
+    item,
+    item::{Item, ItemDrop},
+    slot, Inventory, InventoryUpdate, InventoryUpdateEvent, MAX_PICKUP_RANGE_SQR,
 };
 pub use last::Last;
 pub use location::{Waypoint, WaypointArea};

common/src/event.rs

@@ -1,5 +1,5 @@
 use crate::{comp, sync::Uid, util::Dir};
-use comp::{item::ToolKind, InventoryUpdateEvent};
+use comp::{item::ToolKind, InventoryUpdateEvent, Item};
 use parking_lot::Mutex;
 use serde::Deserialize;
 use specs::Entity as EcsEntity;
@@ -107,6 +107,7 @@ pub enum ServerEvent {
         agent: comp::Agent,
         alignment: comp::Alignment,
         scale: comp::Scale,
+        drop_item: Option<Item>,
     },
     CreateWaypoint(Vec3<f32>),
     ClientDisconnect(EcsEntity),

common/src/generation.rs

@@ -16,6 +16,9 @@ pub struct EntityInfo {
     pub body: Body,
     pub name: Option<String>,
     pub main_tool: Option<Item>,
+    pub scale: f32,
+    pub level: Option<u32>,
+    pub loot_drop: Option<Item>,
 }
 
 impl EntityInfo {
@@ -28,6 +31,9 @@ impl EntityInfo {
             body: Body::Humanoid(humanoid::Body::random()),
             name: None,
             main_tool: Some(Item::empty()),
+            scale: 1.0,
+            level: None,
+            loot_drop: None,
         }
     }
 
@@ -68,6 +74,21 @@ impl EntityInfo {
         self
     }
 
+    pub fn with_loot_drop(mut self, loot_drop: Item) -> Self {
+        self.loot_drop = Some(loot_drop);
+        self
+    }
+
+    pub fn with_scale(mut self, scale: f32) -> Self {
+        self.scale = scale;
+        self
+    }
+
+    pub fn with_level(mut self, level: u32) -> Self {
+        self.level = Some(level);
+        self
+    }
+
     pub fn with_automatic_name(mut self) -> Self {
         self.name = match &self.body {
             Body::Humanoid(body) => Some(get_npc_name(&NPC_NAMES.humanoid, body.race)),

common/src/state.rs

@@ -153,6 +153,7 @@ impl State {
         ecs.register::<comp::Waypoint>();
         ecs.register::<comp::Projectile>();
         ecs.register::<comp::Attacking>();
+        ecs.register::<comp::ItemDrop>();
 
         // Register synced resources used by the ECS.
         ecs.insert(TimeOfDay(0.0));

server/src/events/entity_creation.rs

@@ -1,8 +1,8 @@
 use crate::{sys, Server, StateExt};
 use common::{
     comp::{
-        self, Agent, Alignment, Body, Gravity, LightEmitter, Loadout, Pos, Projectile, Scale,
-        Stats, Vel, WaypointArea,
+        self, Agent, Alignment, Body, Gravity, Item, ItemDrop, LightEmitter, Loadout, Pos,
+        Projectile, Scale, Stats, Vel, WaypointArea,
     },
     util::Dir,
 };
@@ -32,14 +32,22 @@ pub fn handle_create_npc(
     agent: Agent,
     alignment: Alignment,
     scale: Scale,
+    drop_item: Option<Item>,
 ) {
-    server
+    let entity = server
         .state
         .create_npc(pos, stats, loadout, body)
         .with(agent)
         .with(scale)
-        .with(alignment)
-        .build();
+        .with(alignment);
+
+    let entity = if let Some(drop_item) = drop_item {
+        entity.with(ItemDrop(drop_item))
+    } else {
+        entity
+    };
+
+    entity.build();
 }
 
 pub fn handle_shoot(

server/src/events/entity_manipulation.rs

@@ -106,10 +106,17 @@ pub fn handle_destroy(server: &mut Server, entity: EcsEntity, cause: HealthSourc
                 .ecs()
                 .write_storage()
                 .insert(entity, Body::Object(object::Body::Pouch));
-            let _ = state.ecs().write_storage().insert(
-                entity,
-                assets::load_expect_cloned::<Item>("common.items.cheese"),
-            );
+
+            let mut item_drops = state.ecs().write_storage::<comp::ItemDrop>();
+            let item = if let Some(item_drop) = item_drops.get(entity).cloned() {
+                item_drops.remove(entity);
+                item_drop.0
+            } else {
+                assets::load_expect_cloned::<Item>("common.items.cheese")
+            };
+
+            let _ = state.ecs().write_storage().insert(entity, item);
+
             state.ecs().write_storage::<comp::Stats>().remove(entity);
             state.ecs().write_storage::<comp::Agent>().remove(entity);
             state

server/src/events/mod.rs

@@ -84,7 +84,10 @@ impl Server {
                     agent,
                     alignment,
                     scale,
-                } => handle_create_npc(self, pos, stats, loadout, body, agent, alignment, scale),
+                    drop_item,
+                } => handle_create_npc(
+                    self, pos, stats, loadout, body, agent, alignment, scale, drop_item,
+                ),
                 ServerEvent::CreateWaypoint(pos) => handle_create_waypoint(self, pos),
                 ServerEvent::ClientDisconnect(entity) => {
                     frontend_events.push(handle_client_disconnect(self, entity))

server/src/sys/terrain.rs

@@ -245,11 +245,15 @@ impl<'a> System<'a> for Sys {
                     },
                 };
 
-                let mut scale = 1.0;
+                let mut scale = entity.scale;
 
                 // TODO: Remove this and implement scaling or level depending on stuff like
                 // species instead
-                stats.level.set_level(rand::thread_rng().gen_range(1, 9));
+                stats.level.set_level(
+                    entity.level.unwrap_or_else(|| {
+                        (rand::thread_rng().gen_range(1, 9) as f32 * scale) as u32
+                    }),
+                );
 
                 // Replace stuff if it's a boss
                 if entity.is_giant {
@@ -336,6 +340,7 @@ impl<'a> System<'a> for Sys {
                     alignment,
                     agent: comp::Agent::default().with_patrol_origin(entity.pos),
                     scale: comp::Scale(scale),
+                    drop_item: entity.loot_drop,
                 })
             }
         }

world/examples/namegen.rs

@@ -0,0 +1,37 @@
+use rand::prelude::*;
+
+fn main() {
+    let cons = vec![
+        "d", "f", "ph", "r", "st", "t", "s", "p", "sh", "th", "br", "tr", "m", "k", "st", "w", "y",
+    ];
+    let mut start = cons.clone();
+    start.extend(vec![
+        "cr", "thr", "str", "br", "ivy", "est", "ost", "ing", "kr", "in", "on", "tr", "tw", "wh",
+        "eld", "ar", "or", "ear", "ir",
+    ]);
+    let mut middle = cons.clone();
+    middle.extend(vec!["tt"]);
+    let vowel = vec!["o", "e", "a", "i", "u", "au", "ee", "ow", "ay", "ey", "oe"];
+    let end = vec![
+        "et", "ige", "age", "ist", "en", "on", "og", "end", "ind", "ock", "een", "edge", "ist",
+        "ed", "est", "eed", "ast", "olt", "ey", "ean", "ead", "onk", "ink", "eon", "er", "ow",
+        "cot", "in", "on",
+    ];
+
+    let gen_name = || {
+        let mut name = String::new();
+
+        name += start.choose(&mut thread_rng()).unwrap();
+        if thread_rng().gen() {
+            name += vowel.choose(&mut thread_rng()).unwrap();
+            name += middle.choose(&mut thread_rng()).unwrap();
+        }
+        name += end.choose(&mut thread_rng()).unwrap();
+
+        name
+    };
+
+    for _ in 0..20 {
+        println!("{}", gen_name());
+    }
+}

world/src/site/dungeon/mod.rs

@@ -11,6 +11,7 @@ use common::{
     astar::Astar,
     comp,
     generation::{ChunkSupplement, EntityInfo},
+    npc,
     store::{Id, Store},
     terrain::{Block, BlockKind, Structure, TerrainChunkSize},
     vol::{BaseVol, ReadVol, RectSizedVol, RectVolSize, Vox, WriteVol},
@@ -49,6 +50,8 @@ pub struct GenCtx<'a, R: Rng> {
 
 const ALT_OFFSET: i32 = -2;
 
+const LEVELS: usize = 5;
+
 impl Dungeon {
     pub fn generate(wpos: Vec2<i32>, sim: Option<&WorldSim>, rng: &mut impl Rng) -> Self {
         let mut ctx = GenCtx { sim, rng };
@@ -61,9 +64,9 @@ impl Dungeon {
                 + 6,
             seed: ctx.rng.gen(),
             noise: RandomField::new(ctx.rng.gen()),
-            floors: (0..6)
+            floors: (0..LEVELS)
                 .scan(Vec2::zero(), |stair_tile, level| {
-                    let (floor, st) = Floor::generate(&mut ctx, *stair_tile, level);
+                    let (floor, st) = Floor::generate(&mut ctx, *stair_tile, level as i32);
                     *stair_tile = st;
                     Some(floor)
                 })
@@ -184,7 +187,7 @@ const TILE_SIZE: i32 = 13;
 #[derive(Clone)]
 pub enum Tile {
     UpStair,
-    DownStair,
+    DownStair(Id<Room>),
     Room(Id<Room>),
     Tunnel,
     Solid,
@@ -194,7 +197,7 @@ impl Tile {
     fn is_passable(&self) -> bool {
         match self {
             Tile::UpStair => true,
-            Tile::DownStair => true,
+            Tile::DownStair(_) => true,
             Tile::Room(_) => true,
             Tile::Tunnel => true,
             _ => false,
@@ -206,7 +209,10 @@ pub struct Room {
     seed: u32,
     loot_density: f32,
     enemy_density: Option<f32>,
+    boss: bool,
     area: Rect<i32, i32>,
+    height: i32,
+    pillars: Option<i32>, // Pillars with the given separation
 }
 
 pub struct Floor {
@@ -227,40 +233,69 @@ impl Floor {
         stair_tile: Vec2<i32>,
         level: i32,
     ) -> (Self, Vec2<i32>) {
-        let new_stair_tile = std::iter::from_fn(|| {
+        let final_level = level == LEVELS as i32 - 1;
+
+        let new_stair_tile = if final_level {
+            Vec2::zero()
+        } else {
+            std::iter::from_fn(|| {
                 Some(FLOOR_SIZE.map(|sz| ctx.rng.gen_range(-sz / 2 + 2, sz / 2 - 1)))
             })
             .filter(|pos| *pos != stair_tile)
             .take(8)
             .max_by_key(|pos| (*pos - stair_tile).map(|e| e.abs()).sum())
-        .unwrap();
+            .unwrap()
+        };
 
         let tile_offset = -FLOOR_SIZE / 2;
         let mut this = Floor {
             tile_offset,
             tiles: Grid::new(FLOOR_SIZE, Tile::Solid),
             rooms: Store::default(),
-            solid_depth: if level == 0 { 80 } else { 13 * 2 },
-            hollow_depth: 13,
+            solid_depth: if level == 0 { 80 } else { 32 },
+            hollow_depth: 30,
             stair_tile: new_stair_tile - tile_offset,
         };
 
+        const STAIR_ROOM_HEIGHT: i32 = 13;
         // Create rooms for entrance and exit
         this.create_room(Room {
             seed: ctx.rng.gen(),
             loot_density: 0.0,
             enemy_density: None,
+            boss: false,
             area: Rect::from((stair_tile - tile_offset - 1, Extent2::broadcast(3))),
+            height: STAIR_ROOM_HEIGHT,
+            pillars: None,
         });
         this.tiles.set(stair_tile - tile_offset, Tile::UpStair);
+        if final_level {
+            // Boss room
             this.create_room(Room {
                 seed: ctx.rng.gen(),
                 loot_density: 0.0,
-            enemy_density: None,
-            area: Rect::from((new_stair_tile - tile_offset - 1, Extent2::broadcast(3))),
+                enemy_density: Some(0.001), // Minions!
+                boss: true,
+                area: Rect::from((new_stair_tile - tile_offset - 4, Extent2::broadcast(9))),
+                height: 30,
+                pillars: Some(2),
             });
-        this.tiles
-            .set(new_stair_tile - tile_offset, Tile::DownStair);
+        } else {
+            // Create downstairs room
+            let downstair_room = this.create_room(Room {
+                seed: ctx.rng.gen(),
+                loot_density: 0.0,
+                enemy_density: None,
+                boss: false,
+                area: Rect::from((new_stair_tile - tile_offset - 1, Extent2::broadcast(3))),
+                height: STAIR_ROOM_HEIGHT,
+                pillars: None,
+            });
+            this.tiles.set(
+                new_stair_tile - tile_offset,
+                Tile::DownStair(downstair_room),
+            );
+        }
 
         this.create_rooms(ctx, level, 7);
         // Create routes between all rooms
@@ -316,8 +351,11 @@ impl Floor {
             self.create_room(Room {
                 seed: ctx.rng.gen(),
                 loot_density: 0.000025 + level as f32 * 0.00015,
-                enemy_density: Some(0.001 + level as f32 * 0.00004),
+                enemy_density: Some(0.001 + level as f32 * 0.00006),
+                boss: false,
                 area,
+                height: ctx.rng.gen_range(10, 15),
+                pillars: None,
             });
         }
     }
@@ -334,7 +372,7 @@ impl Floor {
         let transition = |_a: &Vec2<i32>, b: &Vec2<i32>| match self.tiles.get(*b) {
             Some(Tile::Room(_)) | Some(Tile::Tunnel) => 1.0,
             Some(Tile::Solid) => 25.0,
-            Some(Tile::UpStair) | Some(Tile::DownStair) => 0.0,
+            Some(Tile::UpStair) | Some(Tile::DownStair(_)) => 0.0,
             _ => 100000.0,
         };
         let satisfied = |l: &Vec2<i32>| *l == b;
@@ -367,6 +405,7 @@ impl Floor {
         for x in area.min.x..area.max.x {
             for y in area.min.y..area.max.y {
                 let tile_pos = Vec2::new(x, y).map(|e| e.div_euclid(TILE_SIZE)) - self.tile_offset;
+                let wpos2d = origin.xy() + Vec2::new(x, y);
                 if let Some(Tile::Room(room)) = self.tiles.get(tile_pos) {
                     let room = &self.rooms[*room];
 
@@ -376,10 +415,20 @@ impl Floor {
                                 .map(|e| e.div_euclid(TILE_SIZE) * TILE_SIZE + TILE_SIZE / 2),
                         );
 
+                    let tile_is_pillar = room
+                        .pillars
+                        .map(|pillar_space| {
+                            tile_pos
+                                .map(|e| e.rem_euclid(pillar_space) == 0)
+                                .reduce_and()
+                        })
+                        .unwrap_or(false);
+
                     if room
                         .enemy_density
                         .map(|density| rng.gen_range(0, density.recip() as usize) == 0)
                         .unwrap_or(false)
+                        && !tile_is_pillar
                     {
                         // Bad
                         let entity = EntityInfo::at(
@@ -389,7 +438,7 @@ impl Floor {
                                 .map(|e| (RandomField::new(room.seed.wrapping_add(10 + e)).get(Vec3::from(tile_pos)) % 32) as i32 - 16)
                                 .map(|e| e as f32 / 16.0),
                         )
-                        .do_if(RandomField::new(room.seed.wrapping_add(1)).chance(Vec3::from(tile_pos), 0.2), |e| e.into_giant())
+                        .do_if(RandomField::new(room.seed.wrapping_add(1)).chance(Vec3::from(tile_pos), 0.2) && !room.boss, |e| e.into_giant())
                         .with_alignment(comp::Alignment::Enemy)
                         .with_body(comp::Body::Humanoid(comp::humanoid::Body::random()))
                         .with_automatic_name()
@@ -404,6 +453,46 @@ impl Floor {
 
                         supplement.add_entity(entity);
                     }
+
+                    if room.boss {
+                        let boss_spawn_tile = room.area.center();
+                        // Don't spawn the boss in a pillar
+                        let boss_spawn_tile = boss_spawn_tile + if tile_is_pillar { 1 } else { 0 };
+
+                        if tile_pos == boss_spawn_tile && tile_wcenter.xy() == wpos2d {
+                            let entity = EntityInfo::at(tile_wcenter.map(|e| e as f32))
+                                .with_scale(4.0)
+                                .with_level(rng.gen_range(50, 70))
+                                .with_alignment(comp::Alignment::Enemy)
+                                .with_body(comp::Body::Humanoid(comp::humanoid::Body::random()))
+                                .with_name(format!(
+                                    "{}, Destroyer of Worlds",
+                                    npc::get_npc_name(npc::NpcKind::Humanoid)
+                                ))
+                                .with_main_tool(assets::load_expect_cloned(
+                                    match rng.gen_range(0, 5) {
+                                        0 => "common.items.weapons.sword.starter_sword",
+                                        1 => "common.items.weapons.sword.short_sword_0",
+                                        2 => "common.items.weapons.sword.wood_sword",
+                                        3 => "common.items.weapons.sword.zweihander_sword_0",
+                                        _ => "common.items.weapons.hammer.hammer_1",
+                                    },
+                                ))
+                                .with_loot_drop(match rng.gen_range(0, 3) {
+                                    0 => comp::Item::expect_from_asset(
+                                        "common.items.boss_drops.lantern",
+                                    ),
+                                    1 => comp::Item::expect_from_asset(
+                                        "common.items.boss_drops.potions",
+                                    ),
+                                    _ => comp::Item::expect_from_asset(
+                                        "common.items.boss_drops.xp_potion",
+                                    ),
+                                });
+
+                            supplement.add_entity(entity);
+                        }
+                    }
                 }
             }
         }
@@ -477,9 +566,20 @@ impl Floor {
                     BlockMask::nothing()
                 }
             },
-            Some(Tile::Room(_)) | Some(Tile::DownStair)
+            Some(Tile::Room(room)) | Some(Tile::DownStair(room))
                 if dist_to_wall < wall_thickness
-                    || z as f32 >= self.hollow_depth as f32 - 13.0 * tunnel_dist.powf(4.0) =>
+                    || z as f32
+                        >= self.rooms[*room].height as f32 * (1.0 - tunnel_dist.powf(4.0))
+                    || self.rooms[*room]
+                        .pillars
+                        .map(|pillar_space| {
+                            tile_pos
+                                .map(|e| e.rem_euclid(pillar_space) == 0)
+                                .reduce_and()
+                                && rtile_pos.map(|e| e as f32).magnitude_squared()
+                                    < 3.5f32.powf(2.0)
+                        })
+                        .unwrap_or(false) =>
             {
                 BlockMask::nothing()
             },
@@ -492,7 +592,7 @@ impl Floor {
                     empty
                 }
             },
-            Some(Tile::DownStair) => {
+            Some(Tile::DownStair(_)) => {
                 make_staircase(Vec3::new(rtile_pos.x, rtile_pos.y, z), 0.0, 0.5, 9.0)
                     .resolve_with(empty)
             },