Refactored to use Vector4i. Added Spider/Grasshopper. TODO: Ant

MovementBehaviour/Prefabs/MovementBehaviourSpider.gd

@@ -1,2 +1,38 @@
 extends MovementBehaviour
 class_name MovementBehaviourSpider
+
+@export var max_movement_reach: int = 3
+	
+func simulate_move_recursive(start: Vector4i, max_num: int, exclude: Array[Vector4i], map: HexGrid, visited_cells: Array[Vector4i] = []) -> Array[Vector4i]:
+	var visited = visited_cells.duplicate()
+	var possible: Array[Vector4i] = []
+	
+	visited.append(start)
+	
+	if max_num < 1:
+		return [start]
+	
+	for neighbour in map.get_empty_neighbours(start):
+		if neighbour in visited:
+			continue
+			
+		if not map.can_reach(start, neighbour):
+			continue
+			
+		var same_neighbours = map.get_same_neighbours(start, neighbour)
+		for e in exclude:
+			same_neighbours.erase(e)
+			
+		if same_neighbours.size() > 0:
+			visited.append(neighbour)
+			print("yay?")
+			possible.append_array(simulate_move_recursive(neighbour, max_num - 1, exclude, map, visited))
+
+	return possible
+	
+func get_available_spaces(pos: Vector4i, map: HexGrid) -> Array[Vector4i]:
+	var possible_places: Array[Vector4i] = []
+
+	possible_places = simulate_move_recursive(pos, max_movement_reach, [pos], map)
+		
+	return possible_places