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Fixes the huge personal rating gained. Damned typos.

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Also changes the max rating loss from 48 to 24 when under 1000 rating.
Only the max rating gain is 48.
Huge thanks to Gyullo for giving me lots of info which led to finding this hidden typo.
Thanks go to click and Shocker as well for helping me find this issue.
Now, please, is it finished yet? is it finally over?

--HG--
branch : trunk
This commit is contained in:
Liberate
2010-08-28 23:17:09 +02:00
parent 511e8c5acf
commit 453476e2c3
1 changed files with 7 additions and 25 deletions
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src/server/game/Battlegrounds/ArenaTeam.cpp
+7 -25
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@@ -621,9 +621,9 @@ 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 // returns the chance to win against a team with the given rating, used in the rating adjustment calculation
// ELO system // ELO system
if (sWorld.getIntConfig(CONFIG_ARENA_SEASON_ID) >= 6) /* if (sWorld.getIntConfig(CONFIG_ARENA_SEASON_ID) >= 6)
if (enemy_rating < 1000) if (enemy_rating < 1000)
enemy_rating = 1000; enemy_rating = 1000;*/
return 1.0f/(1.0f+exp(log(10.0f)*(float)((float)enemy_rating - (float)own_rating)/400.0f)); return 1.0f/(1.0f+exp(log(10.0f)*(float)((float)enemy_rating - (float)own_rating)/400.0f));
} }
@@ -657,7 +657,7 @@ int32 ArenaTeam::WonAgainst(uint32 againstRating)
if (m_stats.rating < 1000) if (m_stats.rating < 1000)
mod = (int32)ceil(48.0f * (1.0f - chance)); mod = (int32)ceil(48.0f * (1.0f - chance));
else if (m_stats.rating < 1300) else if (m_stats.rating < 1300)
mod = (int32)ceil((24.0f + (24.0f * (1300 - m_stats.rating) / 300)) * (1.0f - chance)); mod = (int32)ceil((24.0f + (24.0f * (1300.0f - int32(m_stats.rating)) / 300.0f)) * (1.0f - chance));
else else
mod = (int32)ceil(24.0f * (1.0f - chance)); mod = (int32)ceil(24.0f * (1.0f - chance));
@@ -678,13 +678,7 @@ int32 ArenaTeam::LostAgainst(uint32 againstRating)
// calculate the rating lost // calculate the rating lost
// there is not much info on the formula, but this is a very good simulation // there is not much info on the formula, but this is a very good simulation
int32 mod; int32 mod = (int32)floor(24.0f * (0.0f - chance));
if (m_stats.rating < 1000)
mod = (int32)floor(48.0f * (0.0f - chance));
else if (m_stats.rating < 1300)
mod = (int32)floor((24.0f + (24.0f * (1300 - m_stats.rating) / 300)) * (0.0f - chance));
else
mod = (int32)floor(24.0f * (0.0f - chance));
// modify the team stats accordingly // modify the team stats accordingly
FinishGame(mod); FinishGame(mod);
@@ -703,13 +697,7 @@ void ArenaTeam::MemberLost(Player * plr, uint32 againstMatchmakerRating)
// update personal rating // update personal rating
float chance = GetChanceAgainst(itr->personal_rating, m_stats.rating); float chance = GetChanceAgainst(itr->personal_rating, m_stats.rating);
// calculate the rating modification // calculate the rating modification
int32 mod; int32 mod = (int32)floor(24.0f * (0.0f - chance));
if (itr->personal_rating < 1000)
mod = (int32)floor(48.0f * (0.0f - chance));
else if (itr->personal_rating < 1300)
mod = (int32)floor((24.0f + (24.0f * (1300 - m_stats.rating) / 300)) * (0.0f - chance));
else
mod = (int32)floor(24.0f * (0.0f - chance));
itr->ModifyPersonalRating(plr, mod, GetSlot()); itr->ModifyPersonalRating(plr, mod, GetSlot());
// update matchmaker rating // update matchmaker rating
chance = GetChanceAgainst(itr->matchmaker_rating, againstMatchmakerRating); chance = GetChanceAgainst(itr->matchmaker_rating, againstMatchmakerRating);
@@ -737,13 +725,7 @@ void ArenaTeam::OfflineMemberLost(uint64 guid, uint32 againstMatchmakerRating)
// update personal rating // update personal rating
float chance = GetChanceAgainst(itr->personal_rating, m_stats.rating); float chance = GetChanceAgainst(itr->personal_rating, m_stats.rating);
// calculate the rating modification // calculate the rating modification
int32 mod; int32 mod = (int32)floor(24.0f * (0.0f - chance));
if (itr->personal_rating < 1000)
mod = (int32)floor(48.0f * (0.0f - chance));
else if (itr->personal_rating < 1300)
mod = (int32)floor((24.0f + (24.0f * (1300 - m_stats.rating) / 300)) * (0.0f - chance));
else
mod = (int32)floor(24.0f * (0.0f - chance));
itr->ModifyPersonalRating(NULL, mod, GetSlot()); itr->ModifyPersonalRating(NULL, mod, GetSlot());
// update matchmaker rating // update matchmaker rating
chance = GetChanceAgainst(itr->matchmaker_rating, againstMatchmakerRating); chance = GetChanceAgainst(itr->matchmaker_rating, againstMatchmakerRating);
@@ -773,7 +755,7 @@ void ArenaTeam::MemberWon(Player * plr, uint32 againstMatchmakerRating)
if (itr->personal_rating < 1000) if (itr->personal_rating < 1000)
mod = (int32)ceil(48.0f * (1.0f - chance)); mod = (int32)ceil(48.0f * (1.0f - chance));
else if (itr->personal_rating < 1300) else if (itr->personal_rating < 1300)
mod = (int32)ceil((24.0f + (24.0f * (1300 - m_stats.rating) / 300)) * (1.0f - chance)); mod = (int32)ceil((24.0f + (24.0f * (1300.0f - int32(itr->personal_rating)) / 300.0f)) * (1.0f - chance));
else else
mod = (int32)ceil(24.0f * (1.0f - chance)); mod = (int32)ceil(24.0f * (1.0f - chance));
itr->ModifyPersonalRating(plr, mod, GetSlot()); itr->ModifyPersonalRating(plr, mod, GetSlot());