Bryce Allen
11 years ago
parent
661a055d5c
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#!/usr/bin/env python
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"""
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Calculate probability of getting at least one of a monster part from one
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line in the quest rewards. Also calculates expected value of part
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counts (N), and probabilities of getting a certain number of rewards (C).
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usage: mhprob.py reward_percent fixed_rewards gaurenteed_rewards \
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[extend_percent]
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reward_percent - chance of getting the monster part in %
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fixed_rewards - number of rewards in the reward list with 100% chance and
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are not the item you are looking for. Takes away from
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the total possible draw attempts for what you want.
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Default 1 which is typical for line A in many quests.
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gaurenteed_rewards - minimum number of quest rewards in the line,
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including any fixed rewards. In Tri (see link
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below) this is 3 for line A and 1 for line B.
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Defaults to 3.
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extend_percent - chance of getting one more reward in the line in %,
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default 69
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You can use http://kiranico.com to get reward percent and fixed rewards
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values.
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For extend percent, use the default unless you have the Lucky Cat or
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Ultra Lucky Cat food skills or Good Luck or Great Luck armor skills:
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normal extra reward %: 69
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good luck extra reward %: 81
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great luck extra %: 90
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Can also be used to calculate chance of getting a part from carving,
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using extend_percent=0, fixed_rewards=0, and gaurenteed_rewards=3 (or
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4 for monsters with 4 carves).
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Source:
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http://www.gamefaqs.com/wii/943655-monster-hunter-tri/faqs/60448
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Not sure if there are differences in 3U or 4U.
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Example Plain dangerous in 3U, has 2 fixed rewards in A, one in B, hardhorns
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are 5% both A and B:
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A: ./mhprop.py 5 2 3 69
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B: ./mhprop.py 5 1 1 69
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For great luck, replace 69 with 90
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"""
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import sys
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from mhapi import stats
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if __name__ == '__main__':
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# in percent
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reward_percent = int(sys.argv[1])
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if len(sys.argv) > 2:
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fixed_rewards = int(sys.argv[2])
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else:
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fixed_rewards = 1
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if len(sys.argv) > 3:
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guarenteed_rewards = int(sys.argv[3])
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else:
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guarenteed_rewards = 3
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if len(sys.argv) > 4:
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extend_percent = int(sys.argv[4])
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else:
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extend_percent = 69
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min_rewards = guarenteed_rewards - fixed_rewards
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max_rewards = 8 - fixed_rewards
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if min_rewards < 0:
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print "Error: fixed_rewards (%d) must be less than or equal to " \
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"guaranteeed_rewards (%d)" % (fixed_rewards, guarenteed_rewards)
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sys.exit(1)
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total_p = 0.0
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expected_attempts = 0.0
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for reward_count in xrange(min_rewards, max_rewards + 1):
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p = stats._reward_count_p(reward_count, min_rewards, max_rewards,
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extend_percent)
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expected_attempts += p * reward_count
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# probability of getting @reward_count rewards that could be the
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# desired item
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print "P(C = %d) = %0.4f" % (reward_count, p)
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total_p += p
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# expected value for number of rewards that could be the desired item
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print "E(C) = %0.2f" % expected_attempts
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# math check, make sure all possibilities add up to 1, allowing for
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# some floating point precision loss.
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assert abs(total_p - 1.0) < .00001, "total = %f" % total_p
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p_at_least_one = stats.quest_reward_p(reward_percent, min_rewards,
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max_rewards, extend_percent)
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expected = expected_attempts * reward_percent / 100.0
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print "P(N > 0) = %0.2f%%" % p_at_least_one
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print "E(N) = %0.4f" % expected
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@ -0,0 +1,35 @@
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#!/usr/bin/env python
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import codecs
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from mhapi.db import MHDB
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from mhapi import rewards
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def get_utf8_writer(writer):
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return codecs.getwriter("utf8")(writer)
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if __name__ == '__main__':
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import sys
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import os
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import os.path
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if len(sys.argv) != 2:
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print("Usage: %s 'item name'" % sys.argv[0])
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sys.exit(os.EX_USAGE)
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item_name = sys.argv[1]
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out = get_utf8_writer(sys.stdout)
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err_out = get_utf8_writer(sys.stderr)
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# TODO: doesn't work if script is symlinked
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db_path = os.path.dirname(sys.argv[0])
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db_path = os.path.join(db_path, "..", "db", "mh4u.db")
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db = MHDB(db_path)
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item_row = rewards.find_item(db, item_name, err_out)
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if item_row is None:
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sys.exit(os.EX_DATAERR)
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rewards.print_quests_and_rewards(db, item_row, out)
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@ -0,0 +1,16 @@
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#!/usr/bin/env python
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from mhapi.web.wsgi import application
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LISTEN_HOST = ""
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LISTEN_PORT = 8080
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if __name__ == '__main__':
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import sys
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from wsgiref.simple_server import make_server
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httpd = make_server(LISTEN_HOST, LISTEN_PORT, application)
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try:
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httpd.serve_forever()
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except KeyboardInterrupt:
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print "^C"
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