class Agent:
    def __init__(self, start_x, start_y, assigned_warehouse, radius=5):
        self.x = start_x
        self.y = start_y
        self.radius = radius
        self.assigned_warehouse = assigned_warehouse
        self.is_loaded = False

    def move_right(self):
        self.x += 1
        if self.x > self.assigned_warehouse.width - 1:
            self.x = self.assigned_warehouse.width - 1

    def move_left(self):
        self.x -= 1
        if self.x < 0:
            self.x = 0

    def move_down(self):
        self.y += 1
        if self.y > self.assigned_warehouse.height - 1:
            self.y = self.assigned_warehouse.height - 1

    def move_up(self):
        self.y -= 1
        if self.y < 0:
            self.y = 0