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modify avatar thrust during collisions

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This commit is contained in:
Andrew Meadows 2014-04-01 17:25:26 -07:00
parent b65855a384
commit 515593e41c
3 changed files with 31 additions and 6 deletions
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35
interface/src/avatar/MyAvatar.cpp
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@ -86,9 +86,9 @@ void MyAvatar::reset() {
getHead()->reset();
getHand()->reset();
setVelocity(glm::vec3(0,0,0));
setThrust(glm::vec3(0,0,0));
setOrientation(glm::quat(glm::vec3(0,0,0)));
setVelocity(glm::vec3(0.f));
setThrust(glm::vec3(0.f));
setOrientation(glm::quat(glm::vec3(0.f)));
}
void MyAvatar::setMoveTarget(const glm::vec3 moveTarget) {
@ -677,6 +677,28 @@ void MyAvatar::updateThrust(float deltaTime) {
_thrust -= _driveKeys[LEFT] * _scale * THRUST_MAG_LATERAL * _thrustMultiplier * deltaTime * right;
_thrust += _driveKeys[UP] * _scale * THRUST_MAG_UP * _thrustMultiplier * deltaTime * up;
_thrust -= _driveKeys[DOWN] * _scale * THRUST_MAG_DOWN * _thrustMultiplier * deltaTime * up;
// attenuate thrust when in penetration
if (glm::dot(_thrust, _lastBodyPenetration) > 0.f) {
const float MAX_BODY_PENETRATION_DEPTH = 0.6f * _skeletonModel.getBoundingShapeRadius();
float penetrationFactor = glm::min(1.f, glm::length(_lastBodyPenetration) / MAX_BODY_PENETRATION_DEPTH);
glm::vec3 penetrationDirection = glm::normalize(_lastBodyPenetration);
// attenuate parallel component
glm::vec3 parallelThrust = glm::dot(_thrust, penetrationDirection) * penetrationDirection;
// attenuate perpendicular component (friction)
glm::vec3 perpendicularThrust = _thrust - parallelThrust;
// recombine to get the final thrust
_thrust = (1.f - penetrationFactor) * parallelThrust + (1.f - penetrationFactor * penetrationFactor) * perpendicularThrust;
// attenuate the growth of _thrustMultiplier when in penetration
// otherwise the avatar will eventually be able to tunnel through the obstacle
_thrustMultiplier *= (1.f - penetrationFactor * penetrationFactor);
} else if (_thrustMultiplier < 1.f) {
// rapid healing of attenuated thrustMultiplier after penetration event
_thrustMultiplier = 1.f;
}
_lastBodyPenetration = glm::vec3(0.f);
_bodyYawDelta -= _driveKeys[ROT_RIGHT] * YAW_SPEED * deltaTime;
_bodyYawDelta += _driveKeys[ROT_LEFT] * YAW_SPEED * deltaTime;
getHead()->setBasePitch(getHead()->getBasePitch() + (_driveKeys[ROT_UP] - _driveKeys[ROT_DOWN]) * PITCH_SPEED * deltaTime);
@ -686,8 +708,9 @@ void MyAvatar::updateThrust(float deltaTime) {
const float THRUST_INCREASE_RATE = 1.05f;
const float MAX_THRUST_MULTIPLIER = 75.0f;
//printf("m = %.3f\n", _thrustMultiplier);
if (_thrustMultiplier < MAX_THRUST_MULTIPLIER) {
_thrustMultiplier *= 1.f + deltaTime * THRUST_INCREASE_RATE;
_thrustMultiplier *= 1.f + deltaTime * THRUST_INCREASE_RATE;
if (_thrustMultiplier > MAX_THRUST_MULTIPLIER) {
_thrustMultiplier = MAX_THRUST_MULTIPLIER;
}
} else {
_thrustMultiplier = 1.f;
@ -917,10 +940,10 @@ void MyAvatar::updateCollisionWithAvatars(float deltaTime) {
CollisionInfo* collision = bodyCollisions.getCollision(j);
totalPenetration = addPenetrations(totalPenetration, collision->_penetration);
}
if (glm::length2(totalPenetration) > EPSILON) {
setPosition(getPosition() - BODY_COLLISION_RESOLVE_FACTOR * totalPenetration);
}
_lastBodyPenetration += totalPenetration;
// collide our hands against them
// TODO: make this work when we can figure out when the other avatar won't yeild

1
interface/src/avatar/MyAvatar.h
View file

@ -121,6 +121,7 @@ private:
bool _isThrustOn;
float _thrustMultiplier;
glm::vec3 _moveTarget;
glm::vec3 _lastBodyPenetration;
int _moveTargetStepCounter;
QWeakPointer<AvatarData> _lookAtTargetAvatar;
glm::vec3 _targetAvatarPosition;

1
interface/src/renderer/Model.h
View file

@ -180,6 +180,7 @@ public:
void applyCollision(CollisionInfo& collision);
float getBoundingRadius() const { return _boundingRadius; }
float getBoundingShapeRadius() const { return _boundingShape.getRadius(); }
/// Sets blended vertices computed in a separate thread.
void setBlendedVertices(const QVector<glm::vec3>& vertices, const QVector<glm::vec3>& normals);