File: _definitions.py

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# a list of trusted classes - other classes will not be loaded
from typing import Optional

import AIFleetMission
import AIstate
import character.character_module
import ColonisationAI
import CombatRatingsAI
import fleet_orders


class TrustedClasses:
    def __init__(self, extra_classes: Optional[dict] = None):
        self._trusted_classes = {
            f"{cls.__module__}.{cls.__name__}": cls
            for cls in [
                AIFleetMission.AIFleetMission,
                fleet_orders.AIFleetOrder,
                fleet_orders.OrderMilitary,
                fleet_orders.OrderDefend,
                fleet_orders.OrderColonize,
                fleet_orders.OrderOutpost,
                fleet_orders.OrderPause,
                fleet_orders.OrderInvade,
                fleet_orders.OrderMove,
                fleet_orders.OrderRepair,
                fleet_orders.OrderResupply,
                character.character_module.Trait,
                character.character_module.Aggression,
                character.character_module.EmpireIDTrait,
                character.character_module.Character,
                AIstate.AIstate,
                ColonisationAI.OrbitalColonizationManager,
                ColonisationAI.OrbitalColonizationPlan,
                CombatRatingsAI.ShipCombatStats,
            ]
        }
        if extra_classes:
            self._trusted_classes.update(extra_classes)

    def __contains__(self, name: str):
        return name in self._trusted_classes

    def get(self, name: str):
        return self._trusted_classes.get(name)


# prefixes to encode types not supported by json
# or not fully supported as dictionary key
ENUM_PREFIX = "__ENUM__"
INT_PREFIX = "__INT__"
FLOAT_PREFIX = "__FLOAT__"
TRUE = "__TRUE__"
FALSE = "__FALSE__"
NONE = "__NONE__"
SET_PREFIX = "__SET__"
TUPLE_PREFIX = "__TUPLE__"


# placeholder char to represent quotes in nested containers
# which would break json decoding if present.
PLACEHOLDER = "$"


class CanNotSaveGameException(Exception):
    """Exception raised when constructing the savegame string failed."""

    pass


class InvalidSaveGameException(Exception):
    """Exception raised if the savegame could not be loaded."""

    pass