def polyculture():
	
	field = field_plant_grid(get_world_size(), Entities.Grass)
	
	for cell in field:
		goto(cell)
		if get_companion() != None:
			c, x, y = get_companion()
			field[(x,y)] = c
			
			p = field[(get_pos_x(), get_pos_y())]
			better_plant(p)
			
		if can_harvest():
			harvest()

init_plant(get_world_size(), Entities.Grass)	
while num_items(Items.Carrot) < 30000:
	polyculture()