source: pycodebattler/trunk/pycodebattler/skill.py @ 71

# -*- coding: utf-8 -*-
#
#  Copyright (C) 2010 by Atzm WATANABE <atzm@atzm.org>
#
#  This program is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License (version 2) as
#  published by the Free Software Foundation.  It is distributed in the
#  hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
#  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
#  PURPOSE.  See the GNU General Public License for more details.
#
# $Id$
#

import sys
import random

try:
    import cStringIO as _StringIO
except ImportError:
    import StringIO as _StringIO

try:
    set, frozenset
except NameError:
    from sets import Set as set, ImmutableSet as frozenset


def pformat(skills):
    order = ['NAME', 'TYPE', 'SP', 'LV']
    mmap = {
        'NAME': 'name',
        'TYPE': 'skilltype',
        'SP':   'point',
        'LV':   'level',
    }

    horiz = [[getattr(s, mmap[n])() for n in order] for s in skills]

    for i, t in enumerate(horiz):
        horiz[i][1] = str(t[1]).split('.')[-1]

    virt = zip(*horiz)

    sepnum = (len(order) * 3) - 1
    fmt = ['|']
    for i, t in enumerate(virt):
        num = max(len(str(n)) for n in list(t) + [order[i]])
        sepnum += num
        if i < 2:
            fmt.append(' %%-%ds |' % num)
        else:
            fmt.append(' %%%ds |' % num)

    fmt = ''.join(fmt + ['\n'])
    sep = ''.join(['+', '-' * sepnum, '+', '\n'])

    io = _StringIO.StringIO()
    io.write(sep)
    io.write(fmt % tuple(order))
    io.write(sep)
    for d in horiz:
        io.write(fmt % tuple(d))
    io.write(sep)
    io.flush()

    return io.getvalue()


class SkillType:
    def __init__(self, attacker):
        self.attacker = attacker

    def range(self):
        return 0

    def selectable(self, warriors):
        return []

    def efficiency(self):
        return 0


class HealType(SkillType):
    def range(self):
        return 1

    def selectable(self, warriors):
        return [self.attacker]

    def efficiency(self):
        base = self.attacker.concentration() * 2 + 10
        gosa = base / 2
        return 0 - random.randint(base - gosa, base + gosa)


class ResurrectionType(SkillType):
    def range(self):
        return 1

    def selectable(self, warriors):
        loosers = [w for w in warriors if w.is_dead()]
        try:
            return [random.choice(loosers)]
        except IndexError:
            return []

    def efficiency(self):
        base = self.attacker.concentration() + 10
        gosa = base / 2
        return 0 - random.randint(base - gosa, base + gosa)


class SingleAttackType(SkillType):
    def range(self):
        return 1

    def selectable(self, warriors):
        living = [w for w in warriors if not w.is_dead()]
        living.remove(self.attacker)
        return living

    def efficiency(self):
        base = int(self.attacker.concentration() * 2.5)
        gosa = base / 2
        return random.randint(base - gosa, base + gosa)


class RangeAttackType(SkillType):
    def range(self):
        return self.attacker.concentration() // 25 + 1

    def selectable(self, warriors):
        living = [w for w in warriors if not w.is_dead()]
        living.remove(self.attacker)
        return living

    def efficiency(self):
        base = int(self.attacker.concentration() * 2.3)
        gosa = base / 2
        return random.randint(base - gosa, base + gosa)


class MultiAttackType(SkillType):
    def range(self):
        return sys.maxint

    def selectable(self, warriors):
        living = [w for w in warriors if not w.is_dead()]
        living.remove(self.attacker)
        return living

    def efficiency(self):
        base = int(self.attacker.concentration() * 1.7)
        gosa = base / 2
        return random.randint(base - gosa, base + gosa)


class SuicideAttackType(SkillType):
    def range(self):
        return sys.maxint

    def selectable(self, warriors):
        living = [w for w in warriors if not w.is_dead()]
        living.remove(self.attacker)
        return living + [self.attacker]

    def efficiency(self):
        return self.attacker.hitpoint()


class Skill:
    def __init__(self, name, point, skilltype, level=1):
        self._name = name
        self._point = point
        self._skilltype = skilltype
        self._level = level

    def name(self):
        return self._name

    def point(self):
        return self._point

    def skilltype(self):
        return self._skilltype

    def level(self):
        return self._level

    def range(self, attacker):
        return self._skilltype(attacker).range()

    def selectable(self, attacker, warriors):
        return self._skilltype(attacker).selectable(warriors)

    def invoke(self, attacker, targets, warriors):
        type_ = self._skilltype(attacker)

        if not targets:
            return []
        if not warriors:
            return []
        if attacker.skillpoint() < self.point():
            return []
        if type_.range() * (self._level // 2 + 1) < len(targets):
            return []
        if not set(targets).issubset(set(self.selectable(attacker, warriors))):
            return []

        attacker.spend(self.point())

        return [(t, self._invoke_one(type_, t, targets), False, False)
                for t in targets]

    def _invoke_one(self, type_, t, targets):
        return t.damage(int(type_.efficiency() * self.level() / len(targets)))