252 lines
9.3 KiB
Python
252 lines
9.3 KiB
Python
#===============================================================================
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# Copyright (C) 2010 Diego Duclos
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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 eos.modifiedAttributeDict import ModifiedAttributeDict, ItemAttrShortcut, ChargeAttrShortcut
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from eos.effectHandlerHelpers import HandledItem, HandledCharge
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from sqlalchemy.orm import validates, reconstructor
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import eos.db
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import logging
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logger = logging.getLogger(__name__)
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class Drone(HandledItem, HandledCharge, ItemAttrShortcut, ChargeAttrShortcut):
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DAMAGE_TYPES = ("em", "kinetic", "explosive", "thermal")
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MINING_ATTRIBUTES = ("miningAmount",)
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def __init__(self, item):
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"""Initialize a drone from the program"""
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self.__item = item
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if self.isInvalid:
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raise ValueError("Passed item is not a Drone")
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self.itemID = item.ID if item is not None else None
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self.amount = 0
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self.amountActive = 0
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self.projected = False
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self.build()
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@reconstructor
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def init(self):
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"""Initialize a drone from the database and validate"""
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self.__item = None
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if self.itemID:
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self.__item = eos.db.getItem(self.itemID)
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if self.__item is None:
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logger.error("Item (id: %d) does not exist", self.itemID)
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return
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if self.isInvalid:
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logger.error("Item (id: %d) is not a Drone", self.itemID)
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return
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self.build()
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def build(self):
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""" Build object. Assumes proper and valid item already set """
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self.__charge = None
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self.__dps = None
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self.__volley = None
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self.__miningyield = None
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self.__itemModifiedAttributes = ModifiedAttributeDict()
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self.__itemModifiedAttributes.original = self.__item.attributes
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self.__itemModifiedAttributes.overrides = self.__item.overrides
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self.__chargeModifiedAttributes = ModifiedAttributeDict()
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chargeID = self.getModifiedItemAttr("entityMissileTypeID")
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if chargeID is not None:
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charge = eos.db.getItem(int(chargeID))
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self.__charge = charge
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self.__chargeModifiedAttributes.original = charge.attributes
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self.__chargeModifiedAttributes.overrides = charge.overrides
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@property
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def itemModifiedAttributes(self):
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return self.__itemModifiedAttributes
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@property
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def chargeModifiedAttributes(self):
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return self.__chargeModifiedAttributes
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@property
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def isInvalid(self):
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return self.__item is None or self.__item.category.name != "Drone"
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@property
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def item(self):
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return self.__item
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@property
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def charge(self):
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return self.__charge
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@property
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def dealsDamage(self):
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for attr in ("emDamage", "kineticDamage", "explosiveDamage", "thermalDamage"):
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if attr in self.itemModifiedAttributes or attr in self.chargeModifiedAttributes:
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return True
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@property
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def mines(self):
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if "miningAmount" in self.itemModifiedAttributes:
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return True
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@property
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def hasAmmo(self):
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return self.charge is not None
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@property
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def dps(self):
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return self.damageStats()
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def damageStats(self, targetResists = None):
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if self.__dps == None:
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self.__volley = 0
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self.__dps = 0
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if self.dealsDamage is True and self.amountActive > 0:
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if self.hasAmmo:
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attr = "missileLaunchDuration"
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getter = self.getModifiedChargeAttr
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else:
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attr = "speed"
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getter = self.getModifiedItemAttr
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cycleTime = self.getModifiedItemAttr(attr)
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volley = sum(map(lambda d: (getter("%sDamage"%d) or 0) * (1-getattr(targetResists, "%sAmount"%d, 0)), self.DAMAGE_TYPES))
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volley *= self.amountActive
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volley *= self.getModifiedItemAttr("damageMultiplier") or 1
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self.__volley = volley
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self.__dps = volley / (cycleTime / 1000.0)
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return self.__dps, self.__volley
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@property
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def miningStats(self):
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if self.__miningyield == None:
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if self.mines is True and self.amountActive > 0:
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attr = "duration"
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getter = self.getModifiedItemAttr
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cycleTime = self.getModifiedItemAttr(attr)
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volley = sum(map(lambda d: getter(d), self.MINING_ATTRIBUTES)) * self.amountActive
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self.__miningyield = volley / (cycleTime / 1000.0)
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else:
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self.__miningyield = 0
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return self.__miningyield
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@property
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def maxRange(self):
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attrs = ("shieldTransferRange", "powerTransferRange",
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"energyDestabilizationRange", "empFieldRange",
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"ecmBurstRange", "maxRange")
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for attr in attrs:
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maxRange = self.getModifiedItemAttr(attr)
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if maxRange is not None: return maxRange
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if self.charge is not None:
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delay = self.getModifiedChargeAttr("explosionDelay")
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speed = self.getModifiedChargeAttr("maxVelocity")
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if delay is not None and speed is not None:
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return delay / 1000.0 * speed
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# Had to add this to match the falloff property in modules.py
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# Fscking ship scanners. If you find any other falloff attributes,
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# Put them in the attrs tuple.
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@property
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def falloff(self):
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attrs = ("falloff", "falloffEffectiveness")
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for attr in attrs:
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falloff = self.getModifiedItemAttr(attr)
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if falloff is not None: return falloff
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@validates("ID", "itemID", "chargeID", "amount", "amountActive")
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def validator(self, key, val):
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map = {"ID": lambda val: isinstance(val, int),
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"itemID" : lambda val: isinstance(val, int),
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"chargeID" : lambda val: isinstance(val, int),
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"amount" : lambda val: isinstance(val, int) and val >= 0,
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"amountActive" : lambda val: isinstance(val, int) and val <= self.amount and val >= 0}
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if map[key](val) == False: raise ValueError(str(val) + " is not a valid value for " + key)
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else: return val
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def clear(self):
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self.__dps = None
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self.__volley = None
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self.__miningyield = None
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self.itemModifiedAttributes.clear()
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self.chargeModifiedAttributes.clear()
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def canBeApplied(self, projectedOnto):
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"""Check if drone can engage specific fitting"""
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item = self.item
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# Do not allow to apply offensive modules on ship with offensive module immunite, with few exceptions
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# (all effects which apply instant modification are exception, generally speaking)
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if item.offensive and projectedOnto.ship.getModifiedItemAttr("disallowOffensiveModifiers") == 1:
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offensiveNonModifiers = set(("energyDestabilizationNew", "leech", "energyNosferatuFalloff", "energyNeutralizerFalloff"))
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if not offensiveNonModifiers.intersection(set(item.effects)):
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return False
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# If assistive modules are not allowed, do not let to apply these altogether
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if item.assistive and projectedOnto.ship.getModifiedItemAttr("disallowAssistance") == 1:
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return False
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else:
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return True
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def calculateModifiedAttributes(self, fit, runTime, forceProjected = False):
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if self.projected or forceProjected:
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context = "projected", "drone"
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projected = True
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else:
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context = ("drone",)
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projected = False
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for effect in self.item.effects.itervalues():
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if effect.runTime == runTime and \
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((projected == True and effect.isType("projected")) or \
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projected == False and effect.isType("passive")):
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i = 0
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while i != self.amountActive:
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effect.handler(fit, self, context)
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i += 1
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if self.charge:
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for effect in self.charge.effects.itervalues():
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if effect.runTime == runTime:
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effect.handler(fit, self, ("droneCharge",))
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def __deepcopy__(self, memo):
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copy = Drone(self.item)
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copy.amount = self.amount
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copy.amountActive = self.amountActive
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return copy
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def fits(self, fit):
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fitDroneGroupLimits = set()
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for i in xrange(1, 3):
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groneGrp = fit.ship.getModifiedItemAttr("allowedDroneGroup%d" % i)
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if groneGrp is not None:
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fitDroneGroupLimits.add(int(groneGrp))
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if len(fitDroneGroupLimits) == 0:
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return True
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if self.item.groupID in fitDroneGroupLimits:
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return True
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return False
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