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Improved handling of multiple items by the AI.

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git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@6142 178a84e3-b1eb-0310-8ba1-8eac791a3b58
This commit is contained in:
hikerstk 2010-09-24 12:29:03 +00:00
parent 87bb1cea34
commit e261294e47
1 changed files with 22 additions and 7 deletions
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29
src/karts/controller/default_ai_controller.cpp
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@ -498,6 +498,9 @@ void DefaultAIController::handleItems( const float DELTA, const int STEPS )
break; break;
case PowerupManager::POWERUP_BUBBLEGUM: case PowerupManager::POWERUP_BUBBLEGUM:
// Avoid dropping all bubble gums one after another
if( m_time_since_last_shot >3.0f) break;
// Either use the bubble gum after 10 seconds, or if the next kart // Either use the bubble gum after 10 seconds, or if the next kart
// behind is 'close' but not too close (too close likely means that the // behind is 'close' but not too close (too close likely means that the
// kart is not behind but more to the side of this kart and so won't // kart is not behind but more to the side of this kart and so won't
@ -505,15 +508,17 @@ void DefaultAIController::handleItems( const float DELTA, const int STEPS )
// kart as well? I.e. only drop if the kart behind is faster? Otoh // kart as well? I.e. only drop if the kart behind is faster? Otoh
// this approach helps preventing an overtaken kart to overtake us // this approach helps preventing an overtaken kart to overtake us
// again. // again.
// Don't drop bubble gums too quickly, wait at least three seconds
m_controls->m_fire = (m_distance_behind < 15.0f && m_controls->m_fire = (m_distance_behind < 15.0f &&
m_distance_behind > 3.0f ) || m_distance_behind > 3.0f );
m_time_since_last_shot>10.0f;
break; break;
// All the thrown/fired items might be improved by considering the angle // All the thrown/fired items might be improved by considering the angle
// towards m_kart_ahead. And some of them can fire backwards, too - which // towards m_kart_ahead. And some of them can fire backwards, too - which
// isn't yet supported for AI karts. // isn't yet supported for AI karts.
case PowerupManager::POWERUP_CAKE: case PowerupManager::POWERUP_CAKE:
{ {
// Leave some time between shots
if(m_time_since_last_shot<3.0f) break;
// Since cakes can be fired all around, just use a sane distance // Since cakes can be fired all around, just use a sane distance
// with a bit of extra for backwards, as enemy will go towards cake // with a bit of extra for backwards, as enemy will go towards cake
bool fire_backwards = (m_kart_behind && m_kart_ahead && bool fire_backwards = (m_kart_behind && m_kart_ahead &&
@ -522,14 +527,17 @@ void DefaultAIController::handleItems( const float DELTA, const int STEPS )
float distance = fire_backwards ? m_distance_behind float distance = fire_backwards ? m_distance_behind
: m_distance_ahead; : m_distance_ahead;
m_controls->m_fire = (fire_backwards && distance < 25.0f) || m_controls->m_fire = (fire_backwards && distance < 25.0f) ||
(!fire_backwards && distance < 20.0f) || (!fire_backwards && distance < 20.0f);
m_time_since_last_shot > 10.0f;
if(m_controls->m_fire) if(m_controls->m_fire)
m_controls->m_look_back = fire_backwards; m_controls->m_look_back = fire_backwards;
break; break;
} }
case PowerupManager::POWERUP_BOWLING: case PowerupManager::POWERUP_BOWLING:
{ {
// Leave more time between bowling balls, since they are
// slower, so it should take longer to hit something which
// can result in changing our target.
if(m_time_since_last_shot < 5.0f) break;
// Bowling balls slower, so only fire on closer karts - but when // Bowling balls slower, so only fire on closer karts - but when
// firing backwards, the kart can be further away, since the ball // firing backwards, the kart can be further away, since the ball
// acts a bit like a mine (and the kart is racing towards it, too) // acts a bit like a mine (and the kart is racing towards it, too)
@ -538,15 +546,19 @@ void DefaultAIController::handleItems( const float DELTA, const int STEPS )
!m_kart_ahead; !m_kart_ahead;
float distance = fire_backwards ? m_distance_behind float distance = fire_backwards ? m_distance_behind
: m_distance_ahead; : m_distance_ahead;
m_controls->m_fire = (fire_backwards && distance < 30.0f) || m_controls->m_fire = ( (fire_backwards && distance < 30.0f) ||
(!fire_backwards && distance <10.0f) || (!fire_backwards && distance <10.0f) ) &&
m_time_since_last_shot > 10.0f; m_time_since_last_shot > 3.0f;
if(m_controls->m_fire) if(m_controls->m_fire)
m_controls->m_look_back = fire_backwards; m_controls->m_look_back = fire_backwards;
break; break;
} }
case PowerupManager::POWERUP_PLUNGER: case PowerupManager::POWERUP_PLUNGER:
{ {
// Leave more time after a plunger, since it will take some
// time before a plunger effect becomes obvious.
if(m_time_since_last_shot < 5.0f) break;
// Plungers can be fired backwards and are faster, // Plungers can be fired backwards and are faster,
// so allow more distance for shooting. // so allow more distance for shooting.
bool fire_backwards = (m_kart_behind && m_kart_ahead && bool fire_backwards = (m_kart_behind && m_kart_ahead &&
@ -561,6 +573,9 @@ void DefaultAIController::handleItems( const float DELTA, const int STEPS )
break; break;
} }
case PowerupManager::POWERUP_ANVIL: case PowerupManager::POWERUP_ANVIL:
// Wait one second more than a previous anvil ... just in case
if(m_time_since_last_shot < stk_config->m_anvil_time+1.0f) break;
if(race_manager->getMinorMode()==RaceManager::MINOR_MODE_FOLLOW_LEADER) if(race_manager->getMinorMode()==RaceManager::MINOR_MODE_FOLLOW_LEADER)
{ {
m_controls->m_fire = m_world->getTime()<1.0f && m_controls->m_fire = m_world->getTime()<1.0f &&