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Accurate attack timings in AiCombat

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c++11
scrawl 10 years ago
parent 741e5db862
commit a7bd050928
3 changed files with 36 additions and 155 deletions
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169
apps/openmw/mwmechanics/aicombat.cpp
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@ -31,8 +31,6 @@ namespace
//chooses an attack depending on probability to avoid uniformity
ESM::Weapon::AttackType chooseBestAttack(const ESM::Weapon* weapon, MWMechanics::Movement &movement);
void getMinMaxAttackDuration(const MWWorld::Ptr& actor, float (*fMinMaxDurations)[2]);
osg::Vec3f AimDirToMovingTarget(const MWWorld::Ptr& actor, const MWWorld::Ptr& target, const osg::Vec3f& vLastTargetPos,
float duration, int weapType, float strength);
@ -83,7 +81,6 @@ namespace MWMechanics
/// \brief This class holds the variables AiCombat needs which are deleted if the package becomes inactive.
struct AiCombatStorage : AiTemporaryBase
{
float mTimerAttack;
float mTimerReact;
float mTimerCombatMove;
bool mReadyToAttack;
@ -95,15 +92,12 @@ namespace MWMechanics
boost::shared_ptr<Action> mCurrentAction;
float mActionCooldown;
float mStrength;
float mMinMaxAttackDuration[3][2];
bool mMinMaxAttackDurationInitialised;
bool mForceNoShortcut;
ESM::Position mShortcutFailPos;
osg::Vec3f mLastActorPos;
MWMechanics::Movement mMovement;
AiCombatStorage():
mTimerAttack(0),
mTimerReact(0),
mTimerCombatMove(0),
mReadyToAttack(false),
@ -115,7 +109,6 @@ namespace MWMechanics
mCurrentAction(),
mActionCooldown(0),
mStrength(),
mMinMaxAttackDurationInitialised(false),
mForceNoShortcut(false),
mLastActorPos(0,0,0),
mMovement(){}
@ -233,41 +226,12 @@ namespace MWMechanics
{
if(smoothTurn(actor, osg::DegreesToRadians(movement.mRotation[0]), 0)) movement.mRotation[0] = 0;
}
float attacksPeriod = 1.0f;
ESM::Weapon::AttackType attackType;
bool& attack = storage.mAttack;
bool& readyToAttack = storage.mReadyToAttack;
float& timerAttack = storage.mTimerAttack;
bool& minMaxAttackDurationInitialised = storage.mMinMaxAttackDurationInitialised;
float (&minMaxAttackDuration)[3][2] = storage.mMinMaxAttackDuration;
if(readyToAttack)
{
if (!minMaxAttackDurationInitialised)
{
// TODO: this must be updated when a different weapon is equipped
// TODO: it would be much easier to ask the CharacterController about the current % completion of the weapon wind-up animation
getMinMaxAttackDuration(actor, minMaxAttackDuration);
minMaxAttackDurationInitialised = true;
}
if (timerAttack < 0) attack = false;
timerAttack -= duration;
}
else
{
timerAttack = -attacksPeriod;
if (attack && (characterController.getAttackStrength() >= storage.mStrength || characterController.readyToPrepareAttack()))
attack = false;
}
characterController.setAttackingOrSpell(attack);
@ -372,32 +336,26 @@ namespace MWMechanics
}
float& strength = storage.mStrength;
float& strength = storage.mStrength;
// start new attack
if(readyToAttack)
if(readyToAttack && characterController.readyToStartAttack())
{
if(timerAttack <= -attacksPeriod)
{
attack = true; // attack starts just now
if (!distantCombat) attackType = chooseBestAttack(weapon, movement);
else attackType = ESM::Weapon::AT_Chop; // cause it's =0
attack = true; // attack starts just now
characterController.setAttackingOrSpell(attack);
strength = Misc::Rng::rollClosedProbability();
if (!distantCombat)
chooseBestAttack(weapon, movement);
// Note: may be 0 for some animations
timerAttack = minMaxAttackDuration[attackType][0] +
(minMaxAttackDuration[attackType][1] - minMaxAttackDuration[attackType][0]) * strength;
strength = Misc::Rng::rollClosedProbability();
//say a provoking combat phrase
if (actor.getClass().isNpc())
//say a provoking combat phrase
if (actor.getClass().isNpc())
{
const MWWorld::ESMStore &store = world->getStore();
int chance = store.get<ESM::GameSetting>().find("iVoiceAttackOdds")->getInt();
if (Misc::Rng::roll0to99() < chance)
{
const MWWorld::ESMStore &store = world->getStore();
int chance = store.get<ESM::GameSetting>().find("iVoiceAttackOdds")->getInt();
if (Misc::Rng::roll0to99() < chance)
{
MWBase::Environment::get().getDialogueManager()->say(actor, "attack");
}
MWBase::Environment::get().getDialogueManager()->say(actor, "attack");
}
}
}
@ -607,39 +565,6 @@ namespace MWMechanics
readyToAttack = false;
}
if(!isStuck && distToTarget > rangeAttack && !distantCombat)
{
//special run attack; it shouldn't affect melee combat tactics
if(actorClass.getMovementSettings(actor).mPosition[1] == 1)
{
/* check if actor can overcome the distance = distToTarget - attackerWeapRange
less than in time of swinging with weapon (t_swing), then start attacking
*/
float speed1 = actorClass.getSpeed(actor);
float speed2 = target.getClass().getSpeed(target);
if(target.getClass().getMovementSettings(target).mPosition[0] == 0
&& target.getClass().getMovementSettings(target).mPosition[1] == 0)
speed2 = 0;
float s1 = distToTarget - weapRange;
float t = s1/speed1;
float s2 = speed2 * t;
float t_swing =
minMaxAttackDuration[ESM::Weapon::AT_Thrust][0] +
(minMaxAttackDuration[ESM::Weapon::AT_Thrust][1] - minMaxAttackDuration[ESM::Weapon::AT_Thrust][0]) * Misc::Rng::rollClosedProbability();
if (t + s2/speed1 <= t_swing)
{
readyToAttack = true;
if(timerAttack <= -attacksPeriod)
{
timerAttack = t_swing;
attack = true;
}
}
}
}
return false;
}
@ -765,70 +690,6 @@ ESM::Weapon::AttackType chooseBestAttack(const ESM::Weapon* weapon, MWMechanics:
return attackType;
}
void getMinMaxAttackDuration(const MWWorld::Ptr& actor, float (*fMinMaxDurations)[2])
{
if (!actor.getClass().hasInventoryStore(actor)) // creatures
{
fMinMaxDurations[0][0] = fMinMaxDurations[0][1] = 0.1f;
fMinMaxDurations[1][0] = fMinMaxDurations[1][1] = 0.1f;
fMinMaxDurations[2][0] = fMinMaxDurations[2][1] = 0.1f;
return;
}
// get weapon information: type and speed
const ESM::Weapon *weapon = NULL;
MWMechanics::WeaponType weaptype = MWMechanics::WeapType_None;
MWWorld::ContainerStoreIterator weaponSlot =
MWMechanics::getActiveWeapon(actor.getClass().getCreatureStats(actor), actor.getClass().getInventoryStore(actor), &weaptype);
float weapSpeed;
if (weaptype != MWMechanics::WeapType_HandToHand
&& weaptype != MWMechanics::WeapType_Spell
&& weaptype != MWMechanics::WeapType_None)
{
weapon = weaponSlot->get<ESM::Weapon>()->mBase;
weapSpeed = weapon->mData.mSpeed;
}
else weapSpeed = 1.0f;
MWRender::Animation *anim = MWBase::Environment::get().getWorld()->getAnimation(actor);
std::string weapGroup;
MWMechanics::getWeaponGroup(weaptype, weapGroup);
weapGroup = weapGroup + ": ";
bool bRangedWeap = (weaptype >= MWMechanics::WeapType_BowAndArrow && weaptype <= MWMechanics::WeapType_Thrown);
const char *attackType[] = {"chop ", "slash ", "thrust ", "shoot "};
std::string textKey = "start";
std::string textKey2;
// get durations for each attack type
for (int i = 0; i < (bRangedWeap ? 1 : 3); i++)
{
float start1 = anim->getTextKeyTime(weapGroup + (bRangedWeap ? attackType[3] : attackType[i]) + textKey);
if (start1 < 0)
{
fMinMaxDurations[i][0] = fMinMaxDurations[i][1] = 0.1f;
continue;
}
textKey2 = "min attack";
float start2 = anim->getTextKeyTime(weapGroup + (bRangedWeap ? attackType[3] : attackType[i]) + textKey2);
fMinMaxDurations[i][0] = (start2 - start1) / weapSpeed;
textKey2 = "max attack";
start1 = anim->getTextKeyTime(weapGroup + (bRangedWeap ? attackType[3] : attackType[i]) + textKey2);
fMinMaxDurations[i][1] = fMinMaxDurations[i][0] + (start1 - start2) / weapSpeed;
}
}
osg::Vec3f AimDirToMovingTarget(const MWWorld::Ptr& actor, const MWWorld::Ptr& target, const osg::Vec3f& vLastTargetPos,
float duration, int weapType, float strength)
{

18
apps/openmw/mwmechanics/character.cpp
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@ -1259,6 +1259,8 @@ bool CharacterController::updateWeaponState()
}
animPlaying = mAnimation->getInfo(mCurrentWeapon, &complete);
if(mUpperBodyState == UpperCharState_MinAttackToMaxAttack && mHitState != CharState_KnockDown)
mAttackStrength = complete;
}
else
{
@ -2053,6 +2055,22 @@ bool CharacterController::readyToPrepareAttack() const
return mHitState == CharState_None && mUpperBodyState <= UpperCharState_WeapEquiped;
}
bool CharacterController::readyToStartAttack() const
{
if (mHitState != CharState_None)
return false;
if (mPtr.getClass().hasInventoryStore(mPtr) || mPtr.getClass().isBipedal(mPtr))
return mUpperBodyState == UpperCharState_WeapEquiped;
else
return mUpperBodyState == UpperCharState_Nothing;
}
float CharacterController::getAttackStrength() const
{
return mAttackStrength;
}
void CharacterController::setActive(bool active)
{
mAnimation->setActive(active);

4
apps/openmw/mwmechanics/character.hpp
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@ -241,6 +241,9 @@ public:
void setAttackingOrSpell(bool attackingOrSpell);
bool readyToPrepareAttack() const;
bool readyToStartAttack() const;
float getAttackStrength() const;
/// @see Animation::setActive
void setActive(bool active);
@ -249,7 +252,6 @@ public:
void setHeadTrackTarget(const MWWorld::Ptr& target);
};
void getWeaponGroup(WeaponType weaptype, std::string &group);
MWWorld::ContainerStoreIterator getActiveWeapon(CreatureStats &stats, MWWorld::InventoryStore &inv, WeaponType *weaptype);
}

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