48 lines
1.9 KiB
Python
48 lines
1.9 KiB
Python
# Add root folder to python paths
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# This must be done on every test in order to pass in Travis
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import math
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import os
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import sys
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script_dir = os.path.dirname(os.path.abspath(__file__))
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sys.path.append(os.path.realpath(os.path.join(script_dir, '..', '..', '..')))
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# noinspection PyPackageRequirements
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from _development.helpers import DBInMemory as DB, Gamedata, Saveddata
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from _development.helpers_fits import RifterFit
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def test_multiply_stacking_penalties(DB, Saveddata, RifterFit):
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"""
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Tests the stacking penalties under multiply
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"""
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char0 = Saveddata['Character'].getAll0()
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RifterFit.character = char0
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starting_em_resist = RifterFit.ship.getModifiedItemAttr("shieldEmDamageResonance")
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mod = Saveddata['Module'](DB['db'].getItem("EM Ward Amplifier II"))
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item_modifer = mod.item.getAttribute("emDamageResistanceBonus")
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for _ in range(10):
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# See: http://wiki.eveuniversity.org/Eve_Math#Stacking_Penalties
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current_effectiveness = pow(0.5, (pow(0.45 * (_ - 1), 2)))
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RifterFit.clear()
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RifterFit.calculateModifiedAttributes()
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if _ == 0:
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# First run we have no modules, se don't try and calculate them.
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calculated_resist = RifterFit.ship.getModifiedItemAttr("shieldEmDamageResonance")
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else:
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new_item_modifier = 1 + ((item_modifer * current_effectiveness) / 100)
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calculated_resist = (em_resist * new_item_modifier)
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RifterFit.modules.append(mod)
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RifterFit.calculateModifiedAttributes()
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em_resist = RifterFit.ship.getModifiedItemAttr("shieldEmDamageResonance")
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# Ohnoes! Our stacking penalty calculations are off! Round off because the ones in Eos are probably wrong after four decimal places.
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# TODO: Remove the round when Eos calcs are fixed
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assert round(em_resist, 4) == round(calculated_resist, 4)
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# print(str(em_resist) + "==" + str(calculated_resist))
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