diff --git a/assets/levels/level.toml b/assets/levels/level.toml
new file mode 100644
index 0000000..39eaf4a
--- /dev/null
+++ b/assets/levels/level.toml
@@ -0,0 +1,110 @@
+[[tiles.floors]]
+x = 0
+y = 0
+w = 16
+
+[[tiles.floors]]
+x = 0
+y = 4
+w = 16
+
+[[tiles.floors]]
+x = 0
+y = 8
+w = 16
+
+[[tiles.walls]]
+x = 0
+y = 1
+h = 3
+
+[[tiles.walls]]
+x = 0
+y = 5
+h = 3
+
+[[tiles.walls]]
+x = 15
+y = 1
+h = 3
+
+[[tiles.walls]]
+x = 15
+y = 5
+h = 3
+
+[[tiles.wall_connectors]]
+x = 4
+y = 3
+
+[[tiles.wall_connectors]]
+x = 4
+y = 7
+
+[[tiles.wall_connectors]]
+x = 11
+y = 3
+
+[[tiles.wall_connectors]]
+x = 11
+y = 7
+
+[interactive.player]
+x = 1
+y = 1
+
+[[interactive.doors]]
+x = 4
+y = 1
+facing = "right"
+
+[[interactive.doors]]
+x = 4
+y = 5
+facing = "right"
+lock = "right"
+
+[[interactive.doors]]
+x = 11
+y = 1
+facing = "left"
+lock = "left"
+
+[[interactive.doors]]
+x = 11
+y = 1
+facing = "left"
+
+[[interactive.stairs]]
+x = 8
+y = 1
+floors = 2
+
+[[interactive.containers]]
+x = 2
+y = 1
+
+[[interactive.containers]]
+x = 14
+y = 1
+
+[[interactive.containers]]
+x = 2
+y = 5
+w = 4
+h = 4
+
+[interactive.containers.items]
+id = "lockpick"
+x = 2
+y = 2
+
+[[interactive.containers]]
+x = 14
+y = 5
+w = 2
+h = 2
+
+[interactive.containers.items]
+id = "lockpick"
+rotated = true
diff --git a/assets/levels/level_alt.toml b/assets/levels/level_alt.toml
new file mode 100644
index 0000000..04d4343
--- /dev/null
+++ b/assets/levels/level_alt.toml
@@ -0,0 +1,48 @@
+[tiles]
+floors = [
+    { x = 0, y = 0, w = 16 },
+    { x = 0, y = 4, w = 16 },
+    { x = 0, y = 8, w = 16 },
+]
+walls = [
+    { x = 0, y = 1, h = 3 },
+    { x = 0, y = 5, h = 3 },
+    { x = 15, y = 1, h = 3 },
+    { x = 15, y = 5, h = 3 },
+]
+wall_connectors = [
+    { x = 4, y = 3 },
+    { x = 4, y = 7 },
+    { x = 11, y = 3 },
+    { x = 11, y = 7 },
+]
+
+[interactive]
+player = { x = 1, y = 1 }
+doors = [
+    { x = 4, y = 1, facing = "right" },
+    { x = 4, y = 5, facing = "right", lock = "right" },
+    { x = 11, y = 1, facing = "left", lock = "left" },
+    { x = 11, y = 5, facing = "left" },
+]
+stairs = [
+    { x = 8, y = 1, floors = 2 },
+]
+containers = [
+    { x = 2, y = 1 },
+    { x = 14, y = 1 },
+    {
+        x = 2, y = 5,
+        w = 4, h = 4,
+        items = [
+            { id = "lockpick", x = 2, y = 2 },
+        ],
+    },
+    {
+        x = 14, y = 5,
+        w = 2, h = 2,
+        items = [
+            { id = "lockpick", rotated = true },
+        ],
+    },
+]
diff --git a/src/item/lockpick.rs b/src/item/lockpick.rs
index 32cd95a..8cd8dea 100644
--- a/src/item/lockpick.rs
+++ b/src/item/lockpick.rs
@@ -9,10 +9,14 @@ const LOCKPICK_SPRITE: &'static str = "sprites/items/lockpick.png";
 #[require(Item)]
 pub struct Lockpick;
 
-pub fn lockpick_bundle(asset_server: &Res<AssetServer>, position: UVec2) -> impl Bundle {
+pub fn lockpick_bundle(asset_server: &Res<AssetServer>, position: UVec2, rotated: bool) -> impl Bundle {
     let image = asset_server.load(LOCKPICK_SPRITE);
+    let mut item = Item::new(uvec2(1, 1), position);
+    if rotated {
+        item.rotate();
+    }
     (
-        Item::new(uvec2(1, 1), position),
+        item,
         ItemData {
             image,
             name: "Lockpick".into(),
diff --git a/src/layout/asset.rs b/src/layout/asset.rs
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/src/layout/asset.rs
@@ -0,0 +1 @@
+
diff --git a/src/layout/mod.rs b/src/layout/mod.rs
index d298e8e..32f6e72 100644
--- a/src/layout/mod.rs
+++ b/src/layout/mod.rs
@@ -1,5 +1,6 @@
 use bevy::prelude::*;
 
+pub mod asset;
 pub mod container;
 pub mod door;
 pub mod lock;
diff --git a/src/layout/systems.rs b/src/layout/systems.rs
index d15af28..f09a6b5 100644
--- a/src/layout/systems.rs
+++ b/src/layout/systems.rs
@@ -78,80 +78,66 @@ pub fn setup_world(
     mut commands: Commands,
     asset_server: Res<AssetServer>,
 ) {
-    // floor 1F
-    let mut tiles = (0..16).map(|x| {
-        (0, uvec2(x, 1))
-    }).collect::<Vec<(u16, UVec2)>>();
-
-    // floor/ceil 1-2F
-    tiles.extend((0..16).map(|x| {
-        (0, uvec2(x, 5))
-    }));
-
-    // ceil 2F
-    tiles.extend((0..16).map(|x| {
-        (0, uvec2(x, 9))
-    }));
+    let tiles = [
+        ( 0, ( 0, 0, 16, 1 )), // 1F floor
+        ( 0, ( 0, 4, 16, 1 )), // 1F ceiling / 2F floor
+        ( 0, ( 0, 8, 16, 1 )), // 2F ceiling
+        
+        ( 1, ( 0, 1, 1, 3 )),  // 1F left wall
+        ( 1, ( 0, 5, 1, 3 )),  // 2F left wall
+        ( 1, ( 15, 1, 1, 3 )), // 1F right wall
+        ( 1, ( 15, 5, 1, 3 )), // 2F right wall
+        
+        ( 2, ( 4, 3, 1, 1 )),  // 1F left door connector
+        ( 2, ( 4, 7, 1, 1 )),  // 2F left door connector
+        ( 2, ( 11, 3, 1, 1 )), // 1F right door connector
+        ( 2, ( 11, 7, 1, 1 )), // 2F right door connector
+    ].into_iter().map(|(id, (x, y, w, h))| {
+        (id, URect::from_corners(uvec2(x, y), uvec2(x + w - 1, y + h - 1)))
+    }).collect::<Vec<(u16, URect)>>();
     
-    // walls
-    tiles.extend([
-        (0, 4), (0, 3), (0, 2),
-        (0, 8), (0, 7), (0, 6),
-        (15, 4), (15, 3), (15, 2),
-        (15, 8), (15, 7), (15, 6),
-    ].iter().map(|(x, y)| {
-        (1, uvec2(*x, *y))
-    }));
-    
-    // wall connectors
-    tiles.extend([
-        (4, 8), (4, 4), (11, 8), (11, 4),
-    ].iter().map(|(x, y)| {
-        (2, uvec2(*x, *y))
-    }));
-    
-    commands.spawn(tilemap::tilemap_bundle(&asset_server, uvec2(16, 10), tiles));
+    commands.spawn(tilemap::tilemap_bundle(&asset_server, tiles));
 
-    commands.spawn(door::door_bundle(&asset_server, vec2(meters(-3.5), 0.), false));
-    commands.spawn(door::door_bundle(&asset_server, vec2(meters(-3.5), meters(4.)), false))
+    commands.spawn(player_bundle(&asset_server, vec2(meters(1.5), meters(1.))));
+
+    commands.spawn(door::door_bundle(&asset_server, vec2(meters(4.5), meters(1.)), false));
+    commands.spawn(door::door_bundle(&asset_server, vec2(meters(4.5), meters(5.)), false))
         .with_child(lock::padlock_bundle(&asset_server, false));
-    commands.spawn(door::door_bundle(&asset_server, vec2(meters(3.5), 0.), true))
+    commands.spawn(door::door_bundle(&asset_server, vec2(meters(11.5), meters(1.)), true))
         .with_child(lock::padlock_bundle(&asset_server, true));
-    commands.spawn(door::door_bundle(&asset_server, vec2(meters(3.5), meters(4.)), true));
+    commands.spawn(door::door_bundle(&asset_server, vec2(meters(11.5), meters(5.)), true));
 
     commands.spawn(stairs::stairs_bundle(
         &asset_server,
-        vec2(meters(0.), 0.),
+        vec2(meters(8.), meters(1.)),
         Some(vec2(meters(2.), meters(4.))),
         None,
     ));
     commands.spawn(stairs::stairs_bundle(
         &asset_server,
-        vec2(meters(0.), meters(4.)),
+        vec2(meters(8.), meters(5.)),
         None,
         Some(vec2(meters(-2.), meters(-4.))),
     ));
 
     commands.spawn(container::container_bundle(
         &asset_server,
-        vec2(meters(-6.), 0.),
+        vec2(meters(2.), meters(1.)),
         uvec2(1, 1),
     ));
     commands.spawn(container::container_bundle(
         &asset_server,
-        vec2(meters(-6.), meters(4.)),
-        uvec2(1, 1),
-    )).with_child(lockpick_bundle(&asset_server, UVec2::ZERO));
-    commands.spawn(container::container_bundle(
-        &asset_server,
-        vec2(meters(6.), 0.),
+        vec2(meters(14.), meters(1.)),
         uvec2(1, 1),
     ));
     commands.spawn(container::container_bundle(
         &asset_server,
-        vec2(meters(6.), meters(4.)),
-        uvec2(1, 1),
-    )).with_child(lockpick_bundle(&asset_server, UVec2::ZERO));
-
-    commands.spawn(player_bundle(&asset_server, vec2(meters(-6.), meters(4.))));
+        vec2(meters(2.), meters(5.)),
+        uvec2(4, 4),
+    )).with_child(lockpick_bundle(&asset_server, uvec2(2, 2), false));
+    commands.spawn(container::container_bundle(
+        &asset_server,
+        vec2(meters(14.), meters(5.)),
+        uvec2(2, 2),
+    )).with_child(lockpick_bundle(&asset_server, UVec2::ZERO, true));
 }
diff --git a/src/layout/tilemap.rs b/src/layout/tilemap.rs
index 7a9bd7d..1e81175 100644
--- a/src/layout/tilemap.rs
+++ b/src/layout/tilemap.rs
@@ -23,11 +23,15 @@ pub struct Tilemap;
 
 pub fn tilemap_bundle(
     asset_server: &Res<AssetServer>,
-    size: UVec2,
-    tiles: Vec<(u16, UVec2)>,
+    tiles: Vec<(u16, URect)>,
 ) -> impl Bundle {
+    let mut size = uvec2(0, 0);
+    for tile in tiles.iter() {
+        size.x = size.x.max(tile.1.max.x + 1);
+        size.y = size.y.max(tile.1.max.y + 1);
+    }
     let tile_data: Vec<Option<TileData>> = (0..size.element_product()).map(|xy| {
-        if let Some((id, _)) = tiles.iter().find(|(_, pos)| pos.x == xy % size.x && pos.y == xy / size.x) {
+        if let Some((id, _)) = tiles.iter().find(|(_, rect)| rect.contains(uvec2(xy % size.x, xy / size.x))) {
             Some(TileData::from_tileset_index(*id))
         } else { None }
     }).collect();
@@ -44,27 +48,26 @@ pub fn tilemap_bundle(
             ),
             ..default()
         },
-        Transform::from_xyz(0., meters(0.5) * size.y as f32 - meters(3.), 0.),
+        Transform::from_xyz(
+            meters(0.5) * size.x as f32,
+            meters(0.5) * size.y as f32 - meters(1.),
+            0.,
+        ),
         TilemapChunkTileData(tile_data),
-        Children::spawn(SpawnIter(tiles.into_iter().map(move |(_, pos)| {(
-                // TODO: optimize colliders
-                Collider::cuboid(meters(0.5), meters(0.5)),
+        Children::spawn(SpawnIter(tiles.into_iter().map(move |(_, rect)| {
+            let mut rect = rect.as_rect();
+            rect.max = vec2(rect.max.x + 1., rect.max.y + 1.);
+
+            let (width, height) = (rect.width(), rect.height());
+            let offset = rect.center();
+            (
+                Collider::cuboid(meters(width * 0.5), meters(height * 0.5)),
                 Transform::from_xyz(
-                    meters(0.5 + pos.x as f32 - (size.x as f32 * 0.5)),
-                    meters(0.5 + pos.y as f32 - (size.y as f32 * 0.5)),
+                    meters(offset.x - size.x as f32 * 0.5),
+                    meters(offset.y - size.y as f32 * 0.5),
                     0.,
                 ),
-            )})
-        )),
-        //Children::spawn(SpawnIter(colliders.into_iter()
-        //    .map(move |(collider, pos)| {(
-        //        collider.clone(),
-        //        Transform::from_xyz(
-        //            pos.x - meters(0.5) * size.x as f32,
-        //            pos.y - meters(0.5) * size.y as f32,
-        //            0.
-        //        ),
-        //    )})
-        //)),
+            )}
+        ))),
     )
 }