graphics: add text message rendering (and sans ig)

1 files changed, 26 insertions, 3 deletions

diff --git a/dungeon/src/lib.rs b/dungeon/src/lib.rs
index a475f95..0c9e055 100644
--- a/dungeon/src/lib.rs
+++ b/dungeon/src/lib.rs
@@ -5,6 +5,7 @@ pub mod astar;
 pub mod bsp;
 pub mod entity;
 pub mod map;
+pub mod msg;
 pub mod player_input;
 pub mod pos;
 
@@ -16,10 +17,23 @@ use rand::{
 use crate::{
 	entity::{Entity, Player},
 	map::Floor,
+	msg::Message,
 	player_input::PlayerInput,
 	pos::FPos,
 };
 
+/// Lets the caller know what has
+/// changed in the game state this
+/// tick
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum UpdateResult {
+	/// Default, entities have moved
+	EntityMovement,
+	/// Message on screen updated.
+	/// Contains if a char was added.
+	MessageUpdated(bool),
+}
+
 /// The `Dungeon` type represents the game state of the
 /// dungeon crawler.
 #[derive(Debug, Clone)]
@@ -27,6 +41,7 @@ pub struct Dungeon {
 	pub floor: Floor,
 	pub player: Player,
 	pub enemies: Vec<Entity>,
+	pub msg: Message,
 	seed: u64,
 	rng: SmallRng,
 }
@@ -48,11 +63,13 @@ impl Dungeon {
 		let player = Player::new(floor.player_start());
 		// TODO: Randomize enemy positions/types
 		let enemies = vec![Entity::zombie(floor.random_walkable_pos(&mut rng))];
+		let msg = Message::empty();
 
 		Self {
 			floor,
 			player,
 			enemies,
+			msg,
 			seed,
 			rng,
 		}
@@ -91,9 +108,15 @@ impl Dungeon {
 		&mut self.rng
 	}
 
-	pub fn update(&mut self, player_input: PlayerInput, delta_time: f32) {
-		self.act_player(player_input, delta_time);
-		self.act_non_players(delta_time);
+	pub fn update(&mut self, player_input: PlayerInput, delta_time: f32) -> UpdateResult {
+		if self.msg.visible() {
+			let changed = self.msg.update(player_input);
+			UpdateResult::MessageUpdated(changed)
+		} else {
+			self.act_player(player_input, delta_time);
+			self.act_non_players(delta_time);
+			UpdateResult::EntityMovement
+		}
 	}
 
 	fn act_player(&mut self, player_input: PlayerInput, delta_time: f32) {