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*[8267] ArenaTeam: added check, that teamrating won't become negative Author: Barlok

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*[8268] ArenaTeam: new rating-system for season 6 Authors: danielich and XTZGZoReX.

--HG--
branch : trunk
This commit is contained in:
QAston
2009-07-30 12:59:59 +02:00
parent d783273955
commit 74d6ea4efb
2 changed files with 44 additions and 31 deletions
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71
src/game/ArenaTeam.cpp
View File

@@ -20,6 +20,7 @@
#include "WorldPacket.h"
#include "ArenaTeam.h"
#include "World.h"
void ArenaTeamMember::ModifyPersonalRating(Player* plr, int32 mod, uint32 slot)
{
@@ -44,7 +45,10 @@ ArenaTeam::ArenaTeam()
stats.games_week = 0;
stats.games_season = 0;
stats.rank = 0;
stats.rating = ARENA_NEW_TEAM_RATING;
if (sWorld.getConfig(CONFIG_ARENA_SEASON_ID) >= 6)
stats.rating = 0;
else
stats.rating = 1500;
stats.wins_week = 0;
stats.wins_season = 0;
}
@@ -139,7 +143,17 @@ bool ArenaTeam::AddMember(const uint64& PlayerGuid)
newmember.games_week = 0;
newmember.wins_season = 0;
newmember.wins_week = 0;
newmember.personal_rating = AREAN_NEW_PERSONAL_RATING;
if (sWorld.getConfig(CONFIG_ARENA_SEASON_ID) >= 6)
{
if (stats.rating < 1000)
newmember.personal_rating = stats.rating;
else
newmember.personal_rating = 1000;
}
else
{
newmember.personal_rating = 1500;
}
members.push_back(newmember);
CharacterDatabase.PExecute("INSERT INTO arena_team_member (arenateamid, guid, personal_rating) VALUES ('%u', '%u', '%u')", Id, GUID_LOPART(newmember.guid), newmember.personal_rating );
@@ -517,24 +531,24 @@ float ArenaTeam::GetChanceAgainst(uint32 own_rating, uint32 enemy_rating)
{
// returns the chance to win against a team with the given rating, used in the rating adjustment calculation
// ELO system
if (sWorld.getConfig(CONFIG_ARENA_SEASON_ID) >= 6)
if (enemy_rating < 1300)
enemy_rating = 1300;
return 1.0f/(1.0f+exp(log(10.0f)*(float)((float)enemy_rating - (float)own_rating)/400.0f));
}
int32 ArenaTeam::WonAgainst(uint32 againstRating)
void ArenaTeam::FinishGame(int32 mod)
{
// called when the team has won
//'chance' calculation - to beat the opponent
float chance = GetChanceAgainst(stats.rating,againstRating);
// calculate the rating modification (ELO system with k=32)
int32 mod = (int32)floor(32.0f * (1.0f - chance));
// modify the team stats accordingly
int32 newTeamRating = (int32)stats.rating + mod;
stats.rating = newTeamRating > 0 ? newTeamRating : 0;
if (int32(stats.rating) + mod < 0)
stats.rating = 0;
else
stats.rating += mod;
stats.games_week += 1;
stats.wins_week += 1;
stats.games_season += 1;
stats.wins_season += 1;
//update team's rank
// update team's rank
stats.rank = 1;
ObjectMgr::ArenaTeamMap::const_iterator i = objmgr.GetArenaTeamMapBegin();
for ( ; i != objmgr.GetArenaTeamMapEnd(); ++i)
@@ -542,6 +556,19 @@ int32 ArenaTeam::WonAgainst(uint32 againstRating)
if (i->second->GetType() == this->Type && i->second->GetStats().rating > stats.rating)
++stats.rank;
}
}
int32 ArenaTeam::WonAgainst(uint32 againstRating)
{
// called when the team has won
//'chance' calculation - to beat the opponent
float chance = GetChanceAgainst(stats.rating, againstRating);
// calculate the rating modification (ELO system with k=32)
int32 mod = (int32)floor(32.0f * (1.0f - chance));
// modify the team stats accordingly
FinishGame(mod);
stats.wins_week += 1;
stats.wins_season += 1;
// return the rating change, used to display it on the results screen
return mod;
@@ -551,23 +578,11 @@ int32 ArenaTeam::LostAgainst(uint32 againstRating)
{
// called when the team has lost
//'chance' calculation - to loose to the opponent
float chance = GetChanceAgainst(stats.rating,againstRating);
float chance = GetChanceAgainst(stats.rating, againstRating);
// calculate the rating modification (ELO system with k=32)
int32 mod = (int32)ceil(32.0f * (0.0f - chance));
// modify the team stats accordingly
int32 newTeamRating = (int32)stats.rating + mod;
stats.rating = newTeamRating > 0 ? newTeamRating : 0;
stats.games_week += 1;
stats.games_season += 1;
//update team's rank
stats.rank = 1;
ObjectMgr::ArenaTeamMap::const_iterator i = objmgr.GetArenaTeamMapBegin();
for ( ; i != objmgr.GetArenaTeamMapEnd(); ++i)
{
if (i->second->GetType() == this->Type && i->second->GetStats().rating > stats.rating)
++stats.rank;
}
FinishGame(mod);
// return the rating change, used to display it on the results screen
return mod;

4
src/game/ArenaTeam.h
View File

@@ -85,9 +85,6 @@ enum ArenaTeamTypes
ARENA_TEAM_5v5 = 5
};
#define ARENA_NEW_TEAM_RATING 0
#define AREAN_NEW_PERSONAL_RATING 0
struct ArenaTeamMember
{
uint64 guid;
@@ -202,6 +199,7 @@ class ArenaTeam
void NotifyStatsChanged();
void FinishWeek();
void FinishGame(int32 mod);
protected: