94 lines
3.2 KiB
Python
94 lines
3.2 KiB
Python
# ===============================================================================
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# Copyright (C) 2015 Ryan Holmes
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#
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# This file is part of eos.
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#
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# eos is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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#
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# eos is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with eos. If not, see <http://www.gnu.org/licenses/>.
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# ===============================================================================
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from logbook import Logger
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from sqlalchemy.orm import validates, reconstructor
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import eos.db
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from eos.eqBase import EqBase
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pyfalog = Logger(__name__)
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class Mutator(EqBase):
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""" Mutators are the object that represent an attribute override on the module level, in conjunction with
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mutaplasmids. Each mutated module, when created, is instantiated with a list of these objects, dictated by the
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mutaplasmid that is used on the base module.
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"""
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def __init__(self, module, attr, value):
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self.module = module
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self.moduleID = module.ID
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self.attrID = attr.ID
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self.__attr = attr
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self.value = value
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@reconstructor
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def init(self):
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self.__attr = None
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if self.attrID:
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self.__attr = eos.db.getAttributeInfo(self.attrID)
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if self.__attr is None:
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pyfalog.error("Attribute (id: {0}) does not exist", self.attrID)
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return
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self.value = self.value # run the validator (to ensure we catch any changed min/max values CCP releases)
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self.build()
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def build(self):
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pass
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@validates("value")
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def validator(self, key, val):
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""" Validates values as properly falling within the range of the modules mutaplasmid """
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dynAttr = next(a for a in self.module.mutaplasmid.attributes if a.attributeID == self.attrID)
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baseAttr = self.module.item.attributes[dynAttr.name]
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minValue = dynAttr.min * baseAttr.value
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maxValue = dynAttr.max * baseAttr.value
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mod = val/baseAttr.value
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if dynAttr.min < mod < dynAttr.max:
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# sweet, all good
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returnVal = val
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else:
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# need to fudge the numbers a bit. Go with the value closest to base
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returnVal = min(maxValue, max(minValue, val))
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return returnVal
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@property
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def isInvalid(self):
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# @todo: need to test what happens:
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# 1) if an attribute is removed from the EVE database
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# 2) if a mutaplasmid does not have the attribute anymore
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# 3) if a mutaplasmid does not exist (in eve or on the module's item)
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# Can remove invalid ones in a SQLAlchemy collection class... eventually
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return self.__attr is None
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@property
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def attr(self):
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return self.__attr
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@property
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def item(self):
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return self.__item
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