[Crossfire-wiki] [Crossfire DokuWiki] page added: dev_todo:exp_table

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Date        : 2006/09/01 14:31

User        : raphael

Edit Summary: created



====== Crossfire experience table ======



===== Problems with the current experience tables ====
=



The current experience tables are not very well balanced.  This has been d
iscussed by some developers during the [[:g2g|get together]] meeting (unde
r the heading [[:g2g#crossfire_needs_to_become_more_fun|Crossfire needs to
 become more fun]]) and one proposal was to use a more regular exponential
 progression for the various levels.



There are two experience tables that are currently in use.  They can be fo
und in the file ''lib/exp_table''.  The default one is called is table B (
"classic"). The server [[servers:metalforge|Metalforge]] uses another tabl
e called table C ("hard").  Previous versions of Crossfire used table A, b
ut it is not used anymore by the recent servers (tables A and B are identi
cal but shifted by one level).



The current default table B uses an exponential progression with a factor 
of 2 for the first 10 levels: each new level requires twice as many points
 as the previous one. But then this ratio quickly drops: 1.13 for level 20
, 1.06 for level 30, ... and becomes as low as 1.01 for levels above 90.  
Then there is a sudden jump: a ratio of 6 for level 109, then a ratio of 2
 for the following levels.  When the old table A was still used, this rati
o of 6 was introduced in order to make it hard for players to jump from le
vel 109 to 110.  Now this gap has been shifted down by one level.



This means that after gaining the first 10 levels, it gets a bit easier to
 gain levels.  And after level 20 or so, it gets **much** easier.  Gaining
 levels becomes easier and easier until level 108.  Then it takes a while 
to reach level 109 because of the large gap (6 times more experience point
s required).  This results in a game that is harder for the new players th
an for the high-level ones.



With the current set of maps, the following steps take roughly the same am
ount of time:

  * going from level 1 to level 15 or so (15 levels)

  * going from there to level 40 or so (25 levels)

  * going from there to level 108 (60+ levels)

  * going from level 108 to level 109 (1 level)

After level 108, it takes more time to reach the following levels because 
there are not so many ways to gain a lot of experience.



===== How to fix the experience table =====



In order to re-balance the experience table so that it is not too unfair t
o the new players and too easy for the players above level 20 or 30, it is
 necessary to modify the ratio between the successive levels.  Although th
e ratio may still be close to 2 for the first few levels, it should quickl
y drop to a value that remains constant for most of the table.  This means
 that gaining levels will be a bit easier for the lower levels but will al
so get harder for the higher levels.



===== Proposal for a new experience table =====



Here is a table showing the current experience tables (A, B, C) and a new 
proposal (N) that is more balanced.



^ Level ^ A (Old) ^ B (Classic) ^ C (Hard) ^ N (New) ^

| 1 | 0 | 0 | 0 | 0 |

| 2 | 1000 | 2000 | 2000 | 2000 |

| 3 | 2000 | 4000 | 4000 | 4000 |

| 4 | 4000 | 8000 | 8000 | 7200 |

| 5 | 8000 | 16000 | 16000 | 11500 |

| 6 | 16000 | 32000 | 32000 | 16700 |

| 7 | 32000 | 64000 | 64000 | 21700 |

| 8 | 64000 | 125000 | 125000 | 27100 |

| 9 | 125000 | 250000 | 250000 | 33100 |

| 10 | 250000 | 500000 | 500000 | 39100 |

| 11 | 500000 | 900000 | 900000 | 44900 |

| 12 | 900000 | 1400000 | 1400000 | 51700 |

| 13 | 1400000 | 2000000 | 2000000 | 59400 |

| 14 | 2000000 | 2600000 | 2600000 | 67800 |

| 15 | 2600000 | 3300000 | 3300000 | 77200 |

| 16 | 3300000 | 4100000 | 4100000 | 88000 |

| 17 | 4100000 | 4900000 | 4900000 | 99500 |

| 18 | 4900000 | 5700000 | 5700000 | 111000 |

| 19 | 5700000 | 6600000 | 6600000 | 125000 |

| 20 | 6600000 | 7500000 | 7500000 | 140000 |

| 21 | 7500000 | 8400000 | 8500000 | 157000 |

| 22 | 8400000 | 9300000 | 9500000 | 175000 |

| 23 | 9300000 | 10300000 | 10600000 | 196000 |

| 24 | 10300000 | 11300000 | 11800000 | 220000 |

| 25 | 11300000 | 12300000 | 13000000 | 246000 |

| 26 | 12300000 | 13300000 | 14300000 | 276000 |

| 27 | 13300000 | 14400000 | 15600000 | 309000 |

| 28 | 14400000 | 15500000 | 17000000 | 346000 |

| 29 | 15500000 | 16600000 | 18500000 | 388000 |

| 30 | 16600000 | 17700000 | 20000000 | 434000 |

| 31 | 17700000 | 18800000 | 21700000 | 486000 |

| 32 | 18800000 | 19900000 | 23400000 | 545000 |

| 33 | 19900000 | 21100000 | 25200000 | 610000 |

| 34 | 21100000 | 22300000 | 27000000 | 683000 |

| 35 | 22300000 | 23500000 | 29000000 | 765000 |

| 36 | 23500000 | 24700000 | 31100000 | 857000 |

| 37 | 24700000 | 25900000 | 33300000 | 960000 |

| 38 | 25900000 | 27100000 | 35600000 | 1070000 |

| 39 | 27100000 | 28300000 | 38000000 | 1200000 |

| 40 | 28300000 | 29500000 | 40500000 | 1350000 |

| 41 | 29500000 | 30800000 | 43200000 | 1510000 |

| 42 | 30800000 | 32100000 | 46000000 | 1690000 |

| 43 | 32100000 | 33400000 | 48900000 | 1890000 |

| 44 | 33400000 | 34700000 | 52000000 | 2120000 |

| 45 | 34700000 | 36000000 | 55200000 | 2380000 |

| 46 | 36000000 | 37300000 | 58600000 | 2660000 |

| 47 | 37300000 | 38600000 | 62100000 | 2980000 |

| 48 | 38600000 | 39900000 | 65900000 | 3340000 |

| 49 | 39900000 | 41200000 | 69800000 | 3740000 |

| 50 | 41200000 | 42600000 | 73900000 | 4190000 |

| 51 | 42600000 | 44000000 | 78200000 | 4690000 |

| 52 | 44000000 | 45400000 | 82700000 | 5250000 |

| 53 | 45400000 | 46800000 | 87500000 | 5880000 |

| 54 | 46800000 | 48200000 | 92500000 | 6590000 |

| 55 | 48200000 | 49600000 | 97800000 | 7380000 |

| 56 | 49600000 | 51000000 | 103300000 | 8270000 |

| 57 | 51000000 | 52400000 | 109100000 | 9260000 |

| 58 | 52400000 | 53800000 | 115200000 | 10400000 |

| 59 | 53800000 | 55200000 | 121500000 | 11600000 |

| 60 | 55200000 | 56600000 | 128200000 | 13000000 |

| 61 | 56600000 | 58000000 | 135300000 | 14600000 |

| 62 | 58000000 | 59400000 | 142700000 | 16300000 |

| 63 | 59400000 | 60800000 | 150400000 | 18300000 |

| 64 | 60800000 | 62200000 | 158600000 | 20500000 |

| 65 | 62200000 | 63700000 | 167100000 | 22900000 |

| 66 | 63700000 | 65200000 | 176100000 | 25700000 |

| 67 | 65200000 | 66700000 | 185600000 | 28800000 |

| 68 | 66700000 | 68200000 | 195500000 | 32200000 |

| 69 | 68200000 | 69700000 | 205900000 | 36100000 |

| 70 | 69700000 | 71200000 | 216800000 | 40400000 |

| 71 | 71200000 | 72700000 | 228300000 | 45200000 |

| 72 | 72700000 | 74200000 | 240300000 | 50700000 |

| 73 | 74200000 | 75700000 | 252900000 | 56800000 |

| 74 | 75700000 | 77200000 | 266200000 | 63600000 |

| 75 | 77200000 | 78700000 | 280200000 | 71200000 |

| 76 | 78700000 | 80200000 | 294800000 | 79700000 |

| 77 | 80200000 | 81700000 | 310200000 | 89300000 |

| 78 | 81700000 | 83200000 | 326300000 | 100000000 |

| 79 | 83200000 | 84700000 | 343200000 | 112000000 |

| 80 | 84700000 | 86200000 | 361000000 | 125000000 |

| 81 | 86200000 | 87700000 | 379700000 | 141000000 |

| 82 | 87700000 | 89300000 | 399300000 | 157000000 |

| 83 | 89300000 | 90900000 | 419900000 | 176000000 |

| 84 | 90900000 | 92500000 | 441500000 | 197000000 |

| 85 | 92500000 | 94100000 | 464200000 | 221000000 |

| 86 | 94100000 | 95700000 | 488100000 | 248000000 |

| 87 | 95700000 | 97300000 | 513100000 | 277000000 |

| 88 | 97300000 | 98900000 | 539400000 | 311000000 |

| 89 | 98900000 | 100500000 | 567000000 | 348000000 |

| 90 | 100500000 | 102100000 | 596000000 | 390000000 |

| 91 | 102100000 | 103700000 | 626400000 | 436000000 |

| 92 | 103700000 | 105300000 | 658300000 | 489000000 |

| 93 | 105300000 | 106900000 | 691900000 | 547000000 |

| 94 | 106900000 | 108500000 | 727100000 | 613000000 |

| 95 | 108500000 | 110100000 | 764100000 | 687000000 |

| 96 | 110100000 | 111700000 | 802900000 | 769000000 |

| 97 | 111700000 | 113300000 | 843700000 | 861000000 |

| 98 | 113300000 | 114900000 | 886500000 | 965000000 |

| 99 | 114900000 | 116500000 | 931500000 | 1080000000 |

| 100 | 116500000 | 118100000 | 978700000 | 1220000000 |

| 101 | 118100000 | 119700000 | 1028200000 | 1390000000 |

| 102 | 119700000 | 121300000 | 1080300000 | 1590000000 |

| 103 | 121300000 | 122900000 | 1134900000 | 1810000000 |

| 104 | 122900000 | 124500000 | 1192300000 | 2080000000 |

| 105 | 124500000 | 126100000 | 1252500000 | 2390000000 |

| 106 | 126100000 | 127700000 | 1315800000 | 2750000000 |

| 107 | 127700000 | 129300000 | 1382200000 | 3250000000 |

| 108 | 129300000 | 130900000 | 1451900000 | 3960000000 |

| 109 | 130900000 | 785400000 | 1525100000 | 4950000000 |

| 110 | 785400000 | 1570800000 | 2100000000 | 6440000000 |

| 111 | 1570800000 | 3141600000 | 4200000000 | 9330000000 |

| 112 | 3141600000 | 6283200000 | 8400000000 | 15000000000 |

| 113 | 6283200000 | 12566400000 | 16800000000 | 27000000000 |

| 114 | 12566400000 | 25132800000 | 33600000000 | 50000000000 |

| 115 | 25132800000 | 50265600000 | 67200000000 | 100000000000 |





IP-Address  : 212.117.81.29

Old Revision: none

New Revision: http://wiki.metalforge.net/doku.php/dev_todo:exp_table



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