1 files changed, 189 insertions, 0 deletions
diff --git a/dungeon/src/map.rs b/dungeon/src/map.rs
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+++ b/dungeon/src/map.rs
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+//! The `map` module contains structures of the dungeon game map
+//! including the current `Floor`, map `Tile`, and `Entity`.
+
+use crate::pos::{Direction, Pos};
+
+/// `MAP_SIZE` is the size of the size of the dungeon grid.
+pub const MAP_SIZE: u16 = 100;
+
+/// The number of tiles in the dungeon grid
+pub const TILE_COUNT: usize = MAP_SIZE as usize * MAP_SIZE as usize;
+
+/// The `EntityKind` represents what kind of entity this is.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
+pub enum EntityKind {
+	Player,
+}
+
+/// The `Entity` kind represents the main player, or any other
+/// ai autonomous character that can move freely across the
+/// dungeon.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
+pub struct Entity {
+	pos: Pos,
+	dir: Direction,
+	kind: EntityKind,
+}
+impl Entity {
+	/// Creates a new `Entity` at a given `Pos`, `Direction`, and `EntityKind`.
+	///
+	/// # Examples
+	///
+	/// ```
+	/// use dungeon::{Pos, Direction, Entity, EntityKind};
+	///
+	/// let pos = Pos::new(0, 0).unwrap();
+	/// let dir = Direction::North;
+	/// let kind = EntityKind::Player;
+	/// let entity = Entity::new(pos, dir, kind);
+	/// ```
+	#[must_use]
+	pub const fn new(pos: Pos, dir: Direction, kind: EntityKind) -> Self {
+		Self { pos, dir, kind }
+	}
+
+	/// Creates the Player version of the `Entity`
+	///
+	/// # Examples
+	///
+	/// ```
+	/// use dungeon::{Pos, Entity};
+	///
+	/// let pos = Pos::new(0, 0).unwrap();
+	/// let player = Entity::player(pos);
+	/// ```
+	#[must_use]
+	pub const fn player(pos: Pos) -> Self {
+		let dir = Direction::East;
+		let kind = EntityKind::Player;
+		Self::new(pos, dir, kind)
+	}
+
+	/// Returns the `Pos` of the entity
+	#[must_use]
+	pub const fn pos(&self) -> Pos {
+		self.pos
+	}
+
+	/// Returns a mutable referense to the `Pos` of the entity
+	#[must_use]
+	pub const fn pos_mut(&mut self) -> &mut Pos {
+		&mut self.pos
+	}
+
+	/// Returns the `Direction` of the entity
+	#[must_use]
+	pub const fn dir(&self) -> Direction {
+		self.dir
+	}
+
+	/// Returns a mutable referense to the `Direction` of the entity
+	#[must_use]
+	pub const fn dir_mut(&mut self) -> &mut Direction {
+		&mut self.dir
+	}
+
+	/// Returns the `EntityKind` of this entity
+	#[must_use]
+	pub const fn kind(&self) -> EntityKind {
+		self.kind
+	}
+}
+
+/// The `Tile` enum represents what is (or is not) at
+/// any given spot in the dungeon grid.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
+pub enum Tile {
+	/// `Wall` represents an impassible wall
+	Wall,
+	/// `Air` represents empty walkable space
+	Air,
+}
+
+/// The `Floor` type represents the current playing
+/// grid of the dungeon. It contains the tiles of the
+/// grid, and the starting position of the player.
+#[derive(Clone, Debug, PartialEq, Eq, Hash)]
+pub struct Floor {
+	/// The dungeon grid
+	tiles: Box<[Tile; TILE_COUNT]>,
+	/// The position the player starts at
+	player_start: Pos,
+	/// The seed used when generating the dungeon grid
+	seed: u64,
+}
+impl Floor {
+	/// Generates a dungeon `Floor` using wave function collapse.
+	///
+	/// # Examples
+	///
+	/// ```no_run
+	/// use dungeon::Floor;
+	///
+	/// let floor = Floor::generate();
+	/// ```
+	#[must_use]
+	pub fn generate() -> Self {
+		let seed = rand::random();
+		Self::generate_seeded(seed)
+	}
+
+	/// Genreates a dungeon `Floor` using wave function collapse provided with a seed.
+	///
+	/// The provided seed is used for randomness in the wave function
+	/// collapse algorithm.
+	///
+	/// # Examples
+	///
+	/// ```no_run
+	/// use dungeon::Floor;
+	///
+	/// /// here is our very seedy seed
+	/// let seed = 2893249402u64;
+	/// let floor = Floor::generate_seeded(seed);
+	/// ```
+	#[must_use]
+	pub fn generate_seeded(_seed: u64) -> Self {
+		unimplemented!()
+	}
+
+	/// Returns the start position of the player
+	#[must_use]
+	pub const fn player_start(&self) -> Pos {
+		self.player_start
+	}
+
+	/// Returns the seed used to generate the map
+	#[must_use]
+	pub const fn seed(&self) -> u64 {
+		self.seed
+	}
+
+	/// Returns a `Tile` on the dungeon grid at `Pos`.
+	#[must_use]
+	pub const fn get(&self, pos: Pos) -> Tile {
+		let idx = pos.idx();
+		self.tiles[idx]
+	}
+
+	/// Returns a multable reference to a `Tile` on the dungeon grid at `Pos`.
+	#[must_use]
+	pub const fn get_mut(&mut self, pos: Pos) -> &mut Tile {
+		let idx = pos.idx();
+		&mut self.tiles[idx]
+	}
+
+	/// Returns a reference to all tiles in the `Floor`.
+	/// The size of this lise will always be `TILE_COUNT` long.
+	#[must_use]
+	pub const fn tiles(&self) -> &[Tile] {
+		&*self.tiles
+	}
+
+	/// Returns a mutable reference to all tiles in the `Floor`.
+	/// The size of this lise will always be `TILE_COUNT` long.
+	#[must_use]
+	pub const fn tiles_mut(&mut self) -> &mut [Tile] {
+		&mut *self.tiles
+	}
+}