E:/project/Anoria2/bigworld/anoria/res/scripts/common/gamesys/attktab.py

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''' 
    Anoria (c) Gsk 2010
'''


import random

from consts import *


class AttackTable:
    
    def __init__(self, i_owner=None):
        self.table = [0,0,0,0]
        self.owner = i_owner
        
    ## 
    # this is the central function for determining the outcome of any melee attack
    # this is done by buidling a table (based on the attacker and defender stats&skills)
    # that assigns probabilities for the various possible outcomes
    # 
    # the table will contain a list of 4 numbers, these are the limits for
    # MISS, EVADE, CRIT, CRUSH
    # an attack roll is tested vs these values in the listed order
    # if its<MISS the attack missed, elseif < EVADE the attack has been evaded by the opponent
    # and so on
    #
    # AttackTable needs to be rebuilt whenever
    # - the target changes
    # - any of the stats involved in building it changes
     
    # pass in the characterSkills dictionaries of attacker and defender
    def buildTable(self, atkSkills, defSkills):
        print 'AttackTable.buildTable()'
        current = BASE_MISS
        table = self.table
        # MISS
        table[0] = current
        #EVADE
        current += BASE_EVADE
        table[1] = current
        #CRITICAL HIT
        current += BASE_CRIT
        table[2] = current
        #CRUSHING BLOW
        current += BASE_CRUSH
        table[3] = current
        
        return
    
    ##
    # make a random roll and determine the 'hit type' by comparing it against
    # the attack table (which needs to have been set up with buildTable()) prior
    # to calling getHit()
    # returns the type of the hit
    def getHit(self):
        rnd = random.randint(1, 10000)
        table = self.table
        if(rnd <= table[0]): 
            return HIT_TYPE_MISS
        elif(rnd <= table[1]):
            return HIT_TYPE_EVADE
        elif(rnd <= table[2]):
            return HIT_TYPE_CRIT
        elif(rnd <= table[3]):
            return HIT_TYPE_CRUSH

        return HIT_TYPE_NORMAL