## Creature Project
## CSC323
## 4/17/10
## Instruction.py: Initializes and packs instructions for Species.

class Instruction():
    def __init__(self, direction, species, coordinates=(0,0)):
        """The optional coordinates parameter is for the pack method."""
        self.direction = direction
        self.species = species
        self.coords = coordinates

    def pack(self, coordinates):
        """Packs an instruction object with the coordinates given."""
        self.coords = coordinates
        return Instruction(self.direction, self.species,\
        (self.coords[0]+self.direction.x, self.coords[1]+self.direction.y))
    def __str__(self):
        s = "Direction =" + str(self.direction) + "Species = " + str(self.species) + "Coords = (" + str(self.coords[0]) + ", " + str(self.coords[1]) + ")"
        return s

    def save_the_instruction(self):
        savedRule="\D" + str(self.direction) + "\S" +str(self.species) +"\C" + str(self.coords[0]) + "|" + str(self.coords[1])
        return savedRule