#!/usr/bin/python2

"""
Quick and dirty sketch of an NPC idea.
"""

import random

class Knowledge:
    def __init__(self,filename="knowledge.txt"):
        pass

SKILL_DEFAULTS = {"oak nation":"geography",
                  "mithrol":"geography",
                  "baccata":"geography",
                  }

KNOWLEDGE = {
    "great oak":[
        ("oak nation",3,"I hear it's a magic tree in the north."),
        ("oak nation",5,"It's a city in the north, built around a huge magical tree."),
        ("oak nation",7,"Great Oak is the capital of the nation ruled by the wizard-god Veles and the Velesian race he created.")
        ],
    "baccatan liberation war":[
        ("war",3,"A fast war in the east backed by Mithrol against Baccata's rulers."),
        ("war",5,"A revolution won by Prince Dominic in the east by clever use of religion and foreign aid."),
        ]
    }

class NPC:
    def __init__(self,**options):
        self.name = options.get("name","Grignr")
        self.skills = options.get("skills",{})

    def GetSkill(self,skill_name):
##        print "Checking for skill: " + skill_name
        s = self.skills.get(skill_name,0)
        if not s:
            default = SKILL_DEFAULTS.get(skill_name,0)
            if default:
                s = self.GetSkill(default)
        return s

    def GetSkillRollForTopic(self,skill,topic):
         """How much do I know about this specific topic?"""
         random.seed( self.name + topic )
         r = random.randint(1,6)
         s = self.GetSkill(skill)
         return r+s

    def FindLines(self,topic):

        possible = []
        for l in KNOWLEDGE.get(topic,[]):
            skill, dc, text = l
##            print "Line: " + str(text)
##            print "Skill: " + str(skill)
            roll = self.GetSkillRollForTopic(skill,topic)
##            print "I roll " + str(roll) + " vs. " + skill + " DC " + str(dc) + "."
            if roll >= dc:
                possible.append(l)
        return possible

    def TalkAbout(self,topic):
        lines = self.FindLines(topic)
        if not lines:
            return "[" + self.name + "] I'm sorry, but I've got nothing to say about \"" + topic + "\"."
        random.seed()
        return "[" + self.name + "] " + lines[ random.randint(0,len(lines)-1) ][2]




## Autorun
if __name__ == "__main__":

    print "\nAlderos:"
    a = NPC(name="Alderos",
            skills={"history":5,"magic":10,"war":3,"geography":3},
            )

    ##print a.GetSkill("war")
    ##print a.GetSkillRollForTopic("magic","a")
    ##print a.GetSkillRollForTopic("magic","b")

    print a.FindLines("great oak")
    print a.FindLines("baccatan liberation war")

    print "\nBirch:"
    b = NPC(name="Birch",
            skills={"history":5,"magic":10,"war":3,"geography":3},
            )
    print b.FindLines("great oak")
    print b.FindLines("baccatan liberation war")

    print "\n*** Now putting it together: Get random lines of speech. ***\n"

    print a.TalkAbout("great oak")
    print b.TalkAbout("great oak")
    print a.TalkAbout("baccatan liberation war")
    print b.TalkAbout("baccatan liberation war")