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+- Sprites
+- Initialize Tilemap (Yan)
+    - Script --> World (manages access to tilemap)
+    - Player is an object, not on tilemap
+    - Multiple layers
+        - Ground (Water, Ground) --> custom data (Walkable, Weight = 1)
+        - Obstacles (Stone, ...)
+        - Pickup (Berries, Trees, Boat parts) --> custom data (Type of collectable "tree", "berry", "boat")
+        - Temperature layer (toggleable, types: normal and warm, transparent solid color)
+    - Collect all "objects" from the tilemap on initialization in arrays/dictionaries for later access in the tree
+- Design a tilemap for the game
+- Player (Dome)
+    - Stats (see document)
+    - Inventory
+        - with one slot
+        - can pick up items from tilemap (Pickup)
+        - can drop items back onto tilemap (Pickup)
+- Navigation (Dome?)
+    - Use tilemap layers to compute route
+    - Support obstacles
+    - Result must be an array of tile coordinates, length (array length) and the total cost (sum of weights)
+- Decision Tree (Classes, etc.) (Luca, Cool in)
+    - Reference Food Gatherer for implementation
+    - Child of player, serves as controller
+    - Script needs access to the scene, player and other objects/data
+- Implement Behaviours
+    - Implement all kinds of Behaviours, see document
+- Visualization, make the simulation understandable
+    - GraphEdit
+    - Distances
+    - Current navigation path
+    - ...
diff --git a/doc/sprites.md b/doc/sprites.md
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+# Game Sprites