163 lines
6.3 KiB
Python
163 lines
6.3 KiB
Python
#!/usr/bin/env python2
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from random import randint
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from collections import namedtuple
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import pokedex.db
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import pokedex.db.tables as t
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Pickup = namedtuple('Pickup', 'version_group rates common_items rare_items')
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# The item lists below are taken directly from the games, and differ from
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# the popularly reported values, e.g., on Serebii and Bulbapedia, in the
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# following ways:
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#
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# - Hyper Potion at level 1-10, 1%, instead of various other items
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# - There are no Lucky Eggs. Anywhere. Ever.
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# These rates have been verified in SoulSilver
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rates = [30, 10, 10, 10, 10, 10, 10, 5, 3]
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# The following function is a sketch how the pickup items are chosen, taken
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# from SoulSilver (U). For full details set a breakpoint at 0x02244106.
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#
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# Note that the 1% items are backwards:
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# n=98 gives index 1, and n=99 gives index 0
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def get_reward(pickup, level, n=None):
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if n is None:
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n = randint(0, 99)
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level = (level - 1) // 10
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assert 0 <= level < 10
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threshold = 0
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for index, rate in enumerate(pickup.rates):
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threshold += rate
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if n < threshold:
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return pickup.common_items[level + index]
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else:
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assert 98 <= n <= 99
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index = 99 - n
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assert 0 <= index <= 1
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return pickup.rare_items[level + index]
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# Emerald (U)
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# The rewards lists are located at 0x31c440 in the ROM.
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# The second immediately follows the first, at 0x31C464.
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# 0x0031C440: 0D000E00 16000300 56005500 4B001700 ........V.U.K...
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# 0x0031C450: 02001500 44004000 18003F00 13001900 ....D.@...?.....
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# 0x0031C460: 45002500 15006E00 BB001300 2200B400 E.%...n....."...
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# 0x0031C470: 4C012400 2101C800 3A011E28 323C4650 L.$.!...:..(2<FP
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em = Pickup('emerald', rates,
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[0x0D, 0x0E, 0x16, 0x03, 0x56, 0x55, 0x4B, 0x17, 0x02,
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0x15, 0x44, 0x40, 0x18, 0x3F, 0x13, 0x19, 0x45, 0x25],
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[0x15, 0x6E, 0xBB, 0x13, 0x22, 0xB4, 0x14C, 0x24, 0x121, 0xC8, 0x13A],
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)
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# Diamond (U)
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# The common rewards list is found at 0x1ddb64 in the ROM
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# 0x001DDB60: 9301A100 11001200 1A000300 4F004E00 ............O.N.
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# 0x001DDB70: 1B001900 02001C00 32006C00 6B006D00 ........2.l.k.m.
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# 0x001DDB80: 17001D00 33002900 1B000080 1B000080 ....3.).........
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# The rare rewards list is found at 0x1dda88 in the ROM
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# 0x001DDA80: 0C641550 2A284014 19005C00 DD001700 .d.P*(@...\.....
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# 0x001DDA90: 2600D600 73012800 4801EA00 61010000 &...s.(.H...a...
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dp = Pickup('diamond-pearl', rates,
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[0x11, 0x12, 0x1A, 0x03, 0x4F, 0x4E, 0x1B, 0x19, 0x02,
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0x1C, 0x32, 0x6C, 0x6B, 0x6D, 0x17, 0x1D, 0x33, 0x29],
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[0x19, 0x5C, 0xDD, 0x17, 0x26, 0xD6, 0x173, 0x28, 0x148, 0xEA, 0x161],
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)
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pl = dp._replace(version_group='platinum')
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# SoulSilver (U)
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# The rewards lists are found in overlay 12. All overlays are compressed.
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# After decompression, the common rewards can be found at 0x34B44.
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# 0x00034B40: 2C012D01 11001200 1A000300 4F004E00 ,.-.........O.N.
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# 0x00034B50: 1B001900 02001C00 32005000 51005D00 ........2.P.Q.].
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# 0x00034B60: 17001D00 33002900 80000000 00000000 ....3.).........
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# And the rare rewards can be found at 0x34A4C.
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# 0x00034A40: 01C80596 0C641550 2A284014 19005C00 .....d.P*(@...\.
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# 0x00034A50: DD001700 26001601 7F012800 9D01EA00 ....&.....(.....
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# 0x00034A60: 61010000 08000000 01000000 02000000 a...............
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# These lists can also be found in the RAM during battle, at 0x0226c404 and 0x226c30c.
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hg = Pickup('heartgold-soulsilver', rates,
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[0x11, 0x12, 0x1A, 0x03, 0x4F, 0x4E, 0x1B, 0x19, 0x02,
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0x1C, 0x32, 0x50, 0x51, 0x5D, 0x17, 0x1D, 0x33, 0x29],
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[0x19, 0x5C, 0xDD, 0x17, 0x26, 0x116, 0x17F, 0x28, 0x19D, 0xEA, 0x161],
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)
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# White (J)
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# Found in overlay 0x5C. As in SoulSilver, it must be decompressed.
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# The common rewards are found at 0x7CE, with the rare rewards immediately
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# preceding them at 0x7B8.
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# 0x000007B0: 14191E23 282D3200 19005C00 DD001700 ...#(-2...\.....
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# 0x000007C0: 26001601 19022800 1902EA00 19021100 &.....(.........
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# 0x000007D0: 12001A00 03004F00 4E001B00 19000200 ......O.N.......
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# 0x000007E0: 1C003200 50005100 5D001700 1D003300 ..2.P.Q.].....3.
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# 0x000007F0: 29000000 61941B02 D5941B02 A9941B02 )...a...........
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#
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# Note that the rates have changed slightly: the 5/3 slots are now 4/4 slots.
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bw = Pickup('black-white', [30, 10, 10, 10, 10, 10, 10, 4, 4],
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[0x11, 0x12, 0x1A, 0x03, 0x4F, 0x4E, 0x1B, 0x19, 0x02,
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0x1C, 0x32, 0x50, 0x51, 0x5D, 0x17, 0x1D, 0x33, 0x29],
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[0x19, 0x5C, 0xDD, 0x17, 0x26, 0x116, 0x219, 0x28, 0x219, 0xEA, 0x219],
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)
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# Black 2 (J)
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# Found in overlay 0xA6. Must be decompressed.
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# Common rewards at 0x7FA. Rare rewards immediately prior, at 0x7E4.
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# Same items as B/W 1.
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# 0x000007E0: 282D3200 19005C00 DD001700 26001601 (-2...\.....&...
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# 0x000007F0: 19022800 1902EA00 19021100 12001A00 ..(.............
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# 0x00000800: 03004F00 4E001B00 19000200 1C003200 ..O.N.........2.
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# 0x00000810: 50005100 5D001700 1D003300 29000000 P.Q.].....3.)...
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# 0x00000820: 61C81902 D5C81902 A9C81902 00000000 a...............
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bw2 = bw._replace(version_group='black2-white2')
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# Alright let's add these to the database
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pickups = [em, dp, pl, hg, bw, bw2]
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sess = pokedex.db.connect()
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version_groups = {}
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for vg in sess.query(t.VersionGroup).all():
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version_groups[vg.identifier] = vg
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def get_item(generation_id, item_index):
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item = (sess.query(t.Item)
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.join(t.ItemGameIndex)
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.filter(t.ItemGameIndex.generation_id == generation_id)
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.filter(t.ItemGameIndex.game_index == item_index)
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.one())
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return item
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for pickup in pickups:
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version_group = version_groups[pickup.version_group]
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def get_items(items):
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return [get_item(version_group.generation_id, item_index)
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for item_index in items]
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common_items = get_items(pickup.common_items)
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rare_items = get_items(pickup.rare_items)
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rates = pickup.rates + [1, 1]
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for tier in range(10):
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min_level = 1 + tier * 10
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max_level = 10 + tier * 10
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items = common_items[tier:tier+len(pickup.rates)]
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items += reversed(rare_items[tier:tier+2])
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for rarity, slot, item in zip(rates, range(len(rates)), items):
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pi = t.PickupItem()
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pi.version_group = version_group
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pi.min_level = min_level
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pi.max_level = max_level
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pi.slot = slot
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pi.item = item
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pi.rarity = rarity
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sess.add(pi)
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sess.commit()
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