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Change behavior of recruitment_save_gold.

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It will now use the minimum of a team-ratio and a own-ratio
to prevent cases where side1 recruits until the begin-threshold
is reached and side2 will never recruit anything (assuming
side1 and side2 are allied AIs)
This commit is contained in:
flix 2013-10-07 00:34:27 +02:00
parent e0125c50bb
commit 4b13787d9b
1 changed files with 22 additions and 5 deletions
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27
src/ai/recruitment/recruitment.cpp
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@ -1458,6 +1458,7 @@ double recruitment::get_estimated_village_gain() const {
double recruitment::get_unit_ratio() const {
const unit_map& units = *resources::units;
double own_total_value = 0.;
double team_total_value = 0.;
double enemy_total_value = 0.;
BOOST_FOREACH(const unit& unit, units) {
if (unit.incapacitated() || unit.total_movement() <= 0 || unit.can_recruit()) {
@ -1467,17 +1468,33 @@ double recruitment::get_unit_ratio() const {
if (current_team().is_enemy(unit.side())) {
enemy_total_value += value;
} else {
own_total_value += value;
team_total_value += value;
if (unit.side() == current_team().side()) {
own_total_value += value;
}
}
}
int allies_count = 0;
BOOST_FOREACH(const team& team, *resources::teams) {
if (!current_team().is_enemy(team.side())) {
++allies_count;
}
}
// If only the leader is left, the values could be 0.
// Catch those cases and return something reasonable.
if (own_total_value == 0. && enemy_total_value == 0.) {
return 0.;
if ((own_total_value == 0. || team_total_value == 0) && enemy_total_value == 0.) {
return 0.; // do recruit
} else if (enemy_total_value == 0.) {
return 2.;
return 999.; // save money
}
return own_total_value / enemy_total_value;
// We calculate two ratios: One for the team and one for just our self.
// Then we return the minimum.
// This prevents cases where side1 will recruit until the save_gold begin threshold
// is reached, and side2 won't recruit anything. (assuming side1 and side2 are allied)
double own_ratio = (own_total_value / enemy_total_value) * allies_count;
double team_ratio = team_total_value / enemy_total_value;
return std::min<double>(own_ratio, team_ratio);
}
/**