## Creature Project
## CSC323: Group 1: Nora, Terian, Josh, and Jordan
## 4/7/10
## species.py: Contains methods associated with the class Species.

#NOTE, 4/14/10: Currently no enumerated type State. spec is a string.

from rule import Rule

class Species:
    """Name and rules associated with creatures of a particular species"""
    
    def __init__(self, spec):
        """Initializes a species object."""
    #ensure spec is an element of the enumerated type State
        self.name = spec
        self.rules = []

    def addRule(self, rule):
        """Adds a Rule object to the list of rules"""
        self.rules.append(rule)

    def next(self, world, location):
        """Returns list of instructions for next step based on rules, loc"""
        changes = []
        for nextRule in self.rules:
            if nextRule.apply(world, location):
                changes.append(nextRule.nextMove)
        return changes
    #what will happen when multiple rules hold true, and conflict?
    #will some other class handle conflicts?

    def toString(self):
        """Returns a string object representing the species."""

    def fromString(self, newspecies):
        """Resets itself from a string object representing the species."""

    def __str__(self):
        """Returns a string representation"""
        return self.name