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Make ArenaAI reverse more naturally

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This commit is contained in:
Benau 2016-10-18 10:33:27 +08:00
parent 9aa92cfe30
commit f1caba7932
2 changed files with 11 additions and 34 deletions
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41
src/karts/controller/arena_ai.cpp
View File

@ -48,7 +48,6 @@ void ArenaAI::reset()
m_target_node = Graph::UNKNOWN_SECTOR;
m_current_forward_node = Graph::UNKNOWN_SECTOR;
m_current_forward_point = Vec3(0, 0, 0);
m_adjusting_side = false;
m_closest_kart = NULL;
m_closest_kart_node = Graph::UNKNOWN_SECTOR;
m_closest_kart_point = Vec3(0, 0, 0);
@ -81,6 +80,10 @@ void ArenaAI::update(float dt)
m_controls->setLookBack(false);
m_controls->setNitro(false);
// Let the function below to reset it later
m_controls->setAccel(0.0f);
m_controls->setBrake(false);
// Don't do anything if there is currently a kart animations shown.
if (m_kart->getKartAnimation())
{
@ -249,8 +252,6 @@ void ArenaAI::configSteering()
#endif
if (m_target_point_lc.z() < 0)
{
// Local coordinate z < 0 == target point is behind
m_adjusting_side = m_target_point_lc.x() < 0;
m_is_uturn = true;
}
else
@ -273,7 +274,6 @@ void ArenaAI::configSteering()
#endif
if (m_target_point_lc.z() < 0)
{
m_adjusting_side = m_target_point_lc.x() < 0;
m_is_uturn = true;
}
else
@ -323,9 +323,6 @@ void ArenaAI::checkIfStuck(const float dt)
*/
void ArenaAI::configSpeed()
{
m_controls->setAccel(0.0f);
m_controls->setBrake(false);
// A kart will not brake when the speed is already slower than this
// value. This prevents a kart from going too slow (or even backwards)
// in tight curves.
@ -350,24 +347,14 @@ void ArenaAI::configSpeed()
//-----------------------------------------------------------------------------
void ArenaAI::doUTurn(const float dt)
{
const float turn_side = (m_adjusting_side ? 1.0f : -1.0f);
if (fabsf(m_kart->getSpeed()) >
(m_kart->getKartProperties()->getEngineMaxSpeed() / 5)
&& m_kart->getSpeed() < 0) // Try to emulate reverse like human players
m_controls->setAccel(-0.06f);
else
m_controls->setAccel(-5.0f);
if (m_time_since_uturn >=
(m_cur_difficulty == RaceManager::DIFFICULTY_EASY ? 2.0f : 1.5f))
setSteering(-(turn_side), dt); // Preventing keep going around circle
else
setSteering(turn_side, dt);
float turn_angle = atan2f(m_target_point_lc.x(),
fabsf(m_target_point_lc.z()));
m_controls->setBrake(true);
setSteering(-turn_angle, dt);
m_time_since_uturn += dt;
if (m_target_point_lc.z() > 0 || m_time_since_uturn >
(m_cur_difficulty == RaceManager::DIFFICULTY_EASY ? 3.5f : 3.0f))
if ((m_target_point_lc.z() > 0 && fabsf(turn_angle) < 0.2f) ||
m_time_since_uturn > 1.5f)
{
// End U-turn until target point is in front of this AI
m_is_uturn = false;
@ -385,13 +372,7 @@ bool ArenaAI::gettingUnstuck(const float dt)
resetAfterStop();
setSteering(0.0f, dt);
if (fabsf(m_kart->getSpeed()) >
(m_kart->getKartProperties()->getEngineMaxSpeed() / 5)
&& m_kart->getSpeed() < 0)
m_controls->setAccel(-0.06f);
else
m_controls->setAccel(-4.0f);
m_controls->setBrake(true);
m_time_since_reversing += dt;

4
src/karts/controller/arena_ai.hpp
View File

@ -67,10 +67,6 @@ protected:
void collectItemInArena(Vec3*, int*) const;
private:
/** Used by handleArenaUTurn, it tells whether to do left or right
* turning when steering is overridden. */
bool m_adjusting_side;
Vec3 m_target_point_lc;
/** Indicates that the kart is currently stuck, and m_time_since_reversing is