AC ladder
From AssaultCube
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The AC ladder is a ranking list of players with the goal to encourage competitive gameplay.
Contents |
History
The first ladder
Between July and September 2007 a small group of people started to discuss the need of an official ladder system for AssaultCube (1, 2, 3, 4). Unfortunaly no one was able at that point in time to install a full working ladder system.
At January 2008 acfan announced at the AssaultCube forum (5) that his servers Beacon and Champagne now provides a ladder system. Short after that the list of supporting servers was enlarged with Krusty and Clown, both hosted by KanslozeClown.
At the end of January and after an administration error in March, which causes the deletion of one of the topscorers, the ladder table was reseted.
The second ladder
After a serious hardware failure, the Beacon and Champagne servers were lost and with that also the ladder service. Short after that the clan Tear you Down!, whose members are responsible for the service, started to discuss the possibility to recreate the ladder on a server space hosted by KanslozeClown.
At September 2008, 17th KanslozeClown confirmed on the AssaultCube forum the rumors about the existance of a new ladder 6. This new one was running for a couple of days as beta version, to test the stability and to fix errors.
With the new ladder service also some new aspects took place, cause the statistics are calculated by now also with the results of matches hosted on Pennywise. Since Pennywise uses a different blacklist than Clown and Krusty (which means that brazilian IPs are not banned on Pennywise), the amount of abuse on that server is (much) higher. However, the clan wanted to make the ladder available for Brazilians as well, and thus decided to make two versions of the ladder: one which includes scores of all three servers, and one using only the points scored on Clown and Krusty.
Another new aspect is the map filtering: Many players are still playing trainings maps (mostly known as "gema") on the public ladder servers. These maps often includes multiple flag bases at the end of the training course. With that, these maps could be abused to push the scores. Therefore several maps are filtered out: they can still be played, but they won't count for the ladder.
How the ladder works
On the designated servers all relevant game values (like number of captured flags, frags, gibs, deaths, team kills aso.) of the participated players are collected and put into data packages which are sent in intervalls of one hour to the ladder service. There, the values are caluculated as follows:
| Scored flag | Stolen flag | Returned flag | Kill | Gib or Headshot | Team kill | Death | Suicide |
| +95 points | +5 points | +5 points | +10 points | +20 points | -25 points | -1 point | -4 points |
Example: If one has 24 flags, 251 kills, 173 deaths, 0 gibs, 6 team kills, 2 suicides, 81 stolen flags, 26 returned flags, his total score will be 4994 points (24*95 + 251*10 + 173*-1 + 0*20 + 6*-25 + 2*-4 + 81*5 + 26*5 = 4994).
Every player in the table is ranked by the number of points he/she has accumulated during the existence of the table. If it is equal then they are ranked by their ratio, if that's equal too then they are ranked by scored flags.
The table also shows the number of frags, deaths and the ratio. Number of frags is increased on kill, increased by two on gib, decreased on team kill and suicide. Number of deaths are increased on death and suicide. Ratio is frags divided by deaths, with two exceptions. If number of frags is less than 0 then ratio is 0. If number of deaths is 0 then ratio equals number of frags.
Important hints
- The ladders statistics are not real time, they are updated every hour.
- Cause there where several attempts in the past to manipulate the scores, only games with eight or more players are counted. For the same reason all supporting servers are running a blacklist to prevent cheating.
- Scores below 100 points (scoring 1 flag, killing 10 people) will be deleted every hour.
- Scores will be calculated per month. At the beginning of each month, all scores are reset.
