src/activities/house/mod.rs

@@ -11,13 +11,16 @@ pub struct HouseState {
 }
 
 pub fn draw(state: &crate::State, _engine: &comfy::EngineContext<'_>) {
-	//Draw Grid
-	state.house.grid.draw();
+	if let Some(house) = state.house() {
+		//Draw Grid
+		house.grid.draw();
 
-	//Draw Player
-	state.house.player.draw();
+		//Draw Player
+		house.player.draw();
+	}
 }
 
 pub fn update(state: &mut crate::State, _engine: &mut comfy::EngineContext<'_>) {
-	state.house.player.update(&state.house.grid);
+	let house = state.house_mut();
+	house.player.update(&house.grid);
 }

src/activities/mod.rs

@@ -1,10 +1,11 @@
+use comfy::IVec2;
+
 pub mod house;
 pub mod overworld;
 
 #[derive(Debug, Default)]
 pub enum Activity {
-	#[allow(dead_code)]
-	House,
+	House(IVec2),
 	#[default]
 	Overworld
 }

src/activities/overworld/mod.rs

@@ -1,4 +1,11 @@
-use crate::{game::ZLayer, State};
+use crate::{
+	activities::{
+		house::{self, HouseState},
+		Activity
+	},
+	game::ZLayer,
+	State
+};
 use comfy::{
 	draw_circle, draw_rect_outline, draw_sprite, error, info, is_key_down,
 	main_camera_mut, EngineContext, IVec2, KeyCode, Vec2, RED, WHITE
@@ -146,6 +153,16 @@ fn update_move_player(state: &mut State) {
 		y: requested_pos_diff.y as _
 	};
 	state.ghost.overworld_pos_last_update = now;
+
+	//move into house if player stepp at door
+	{
+		let current_tile = state.overworld.get_or_generate_tile(tile_pos);
+		if current_tile.can_enter_house() {
+			info!("enter house at {tile_pos}");
+			state.activity = Activity::House(tile_pos);
+			state.house_mut(); // gen new house
+		}
+	}
 }
 
 pub fn update(state: &mut State, _ctx: &mut EngineContext<'_>) {

src/game.rs

@@ -88,14 +88,14 @@ impl Sub<i32> for ZLayer {
 pub fn update(state: &mut State, engine: &mut EngineContext<'_>) {
 	state.score += engine.delta * 10.0;
 	match state.activity {
-		Activity::House => house::update(state, engine),
+		Activity::House(_) => house::update(state, engine),
 		Activity::Overworld => overworld::update(state, engine)
 	}
 }
 
 pub fn draw(state: &State, engine: &EngineContext<'_>) {
 	match state.activity {
-		Activity::House => house::draw(state, engine),
+		Activity::House(_) => house::draw(state, engine),
 		Activity::Overworld => overworld::draw(state, engine)
 	}
 	crate::ui::draw(state, engine);

src/main.rs

@@ -17,7 +17,7 @@ use self::{
 };
 use comfy::{
 	init_game_config, pollster, run_comfy_main_async, EngineContext, EngineState,
-	GameConfig, GameLoop
+	GameConfig, GameLoop, HashMap, IVec2
 };
 
 const GAME_NAME: &str = "Powercreep";
@@ -28,10 +28,29 @@ struct State {
 	activity: Activity,
 	ghost: Ghost,
 	overworld: Overworld,
-	house: HouseState,
+	houses: HashMap<IVec2, HouseState>,
 	score: f32
 }
 
+impl State {
+	fn get_house_pos(&self) -> Option<IVec2> {
+		match self.activity {
+			Activity::House(pos) => Some(pos),
+			_ => None
+		}
+	}
+
+	fn house(&self) -> Option<&HouseState> {
+		self.houses.get(&self.get_house_pos().unwrap())
+	}
+
+	fn house_mut(&mut self) -> &mut HouseState {
+		self.houses
+			.entry(self.get_house_pos().unwrap())
+			.or_insert_with(HouseState::default)
+	}
+}
+
 impl GameLoop for State {
 	fn new(_c: &mut EngineState) -> Self {
 		Self::default()