1 files changed, 47 insertions, 0 deletions
diff --git a/dungeon/src/lib.rs b/dungeon/src/lib.rs
index cfd2fbe..399807c 100644
--- a/dungeon/src/lib.rs
+++ b/dungeon/src/lib.rs
@@ -5,11 +5,13 @@ pub mod astar;
 pub mod bsp;
 pub mod entity;
 pub mod map;
+pub mod player_input;
 pub mod pos;
 
 pub use bsp::*;
 pub use entity::*;
 pub use map::*;
+pub use player_input::*;
 pub use pos::*;
 
 /// The `Dungeon` type represents the game state of the
@@ -55,6 +57,51 @@ impl Dungeon {
 	pub fn camera(&self) -> FPos {
 		self.player.entity.fpos
 	}
+
+	pub fn update(&mut self, player_input: PlayerInput, delta_time: f32) {
+		self.act_player(player_input, delta_time);
+		self.act_non_players(delta_time);
+	}
+
+	fn act_player(&mut self, player_input: PlayerInput, delta_time: f32) {
+		let mut move_distance = self.player.entity.kind.move_speed() * delta_time;
+		// having this be a loop is a *little* unnecessary,
+		// but is technically more correct if the entity is fast enough
+		// to move more than one tile in a single frame
+		// (plus, it was easier to write if i thought of this like a state machine)
+		loop {
+			match (self.player.moving_to, player_input.direction) {
+				(Some(pos), _) => {
+					move_distance -= self
+						.player
+						.entity
+						.fpos
+						.move_towards_manhattan(pos.into(), move_distance);
+					if move_distance == 0.0 {
+						// can't move any further
+						break;
+					}
+					// otherwise, reached `pos`
+					self.player.entity.pos = pos;
+					self.player.moving_to = None;
+					// continue moving
+				}
+				(None, Some(dir)) => {
+					// set direction & find out next position
+					self.player.entity.dir = dir;
+					self.player.moving_to = self.player.entity.pos.step(dir);
+				}
+				(None, None) => break,
+			}
+		}
+		// TODO: reuse a similar structure across all entities
+	}
+
+	fn act_non_players(&mut self, delta_time: f32) {
+		for enemy in self.enemies.iter_mut() {
+			enemy.handle_movement(self.player.entity.pos, &mut self.floor, delta_time);
+		}
+	}
 }
 impl Default for Dungeon {
 	fn default() -> Self {