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Enable local gravity when there is a floor nearby.

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This commit is contained in:
Andrew Meadows 2014-05-23 15:59:27 -07:00
parent b875144e2d
commit d425b5b322
4 changed files with 67 additions and 20 deletions
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3
interface/src/Menu.cpp
View file

@ -200,7 +200,8 @@ Menu::Menu() :
QObject* avatar = appInstance->getAvatar();
addCheckableActionToQMenuAndActionHash(editMenu, MenuOption::ObeyEnvironmentalGravity, Qt::SHIFT | Qt::Key_G, false,
avatar, SLOT(updateMotionBehaviorsFromMenu()));
addCheckableActionToQMenuAndActionHash(editMenu, MenuOption::StandOnNearbyFloors, 0, true,
avatar, SLOT(updateMotionBehaviorsFromMenu()));
addAvatarCollisionSubMenu(editMenu);

1
interface/src/Menu.h
View file

@ -376,6 +376,7 @@ namespace MenuOption {
const QString ShowBordersModelNodes = "Show Model Nodes";
const QString ShowBordersParticleNodes = "Show Particle Nodes";
const QString ShowIKConstraints = "Show IK Constraints";
const QString StandOnNearbyFloors = "Stand on nearby floors";
const QString Stars = "Stars";
const QString Stats = "Stats";
const QString StopAllScripts = "Stop All Scripts";

63
interface/src/avatar/MyAvatar.cpp
View file

@ -383,9 +383,9 @@ void MyAvatar::setGravity(const glm::vec3& gravity) {
float gravityLength = glm::length(gravity);
if (gravityLength > EPSILON) {
_worldUpDirection = _gravity / -gravityLength;
} else {
_worldUpDirection = DEFAULT_UP_DIRECTION;
}
// NOTE: the else case here it to leave _worldUpDirection unchanged
// so it continues to point opposite to the previous gravity setting.
}
AnimationHandlePointer MyAvatar::addAnimationHandle() {
@ -814,12 +814,13 @@ void MyAvatar::updatePosition(float deltaTime) {
bool walkingOnFloor = false;
float gravityLength = glm::length(_gravity) * GRAVITY_EARTH;
if (gravityLength > EPSILON) {
const CapsuleShape& boundingShape = _skeletonModel.getBoundingShape();
glm::vec3 startCap;
boundingShape.getStartPoint(startCap);
glm::vec3 bottomOfBoundingCapsule = startCap - boundingShape.getRadius() * _worldUpDirection;
const CapsuleShape& boundingShape = _skeletonModel.getBoundingShape();
glm::vec3 startCap;
boundingShape.getStartPoint(startCap);
glm::vec3 bottomOfBoundingCapsule = startCap - boundingShape.getRadius() * _worldUpDirection;
if (gravityLength > EPSILON) {
float speedFromGravity = _scale * deltaTime * gravityLength;
float distanceToFall = glm::distance(bottomOfBoundingCapsule, _lastFloorContactPoint);
walkingOnFloor = (distanceToFall < 2.0f * deltaTime * speedFromGravity);
@ -840,6 +841,32 @@ void MyAvatar::updatePosition(float deltaTime) {
} else {
_velocity -= speedFromGravity * _worldUpDirection;
}
if (_motionBehaviors & AVATAR_MOTION_STAND_ON_NEARBY_FLOORS) {
const float MAX_VERTICAL_FLOOR_DETECTION_SPEED = _scale * MAX_WALKING_SPEED;
if (keyboardInput && glm::dot(_motorVelocity, _worldUpDirection) > 0.0f &&
glm::dot(_velocity, _worldUpDirection) > MAX_VERTICAL_FLOOR_DETECTION_SPEED) {
// disable gravity because we're pushing with keyboard
setLocalGravity(glm::vec3(0.0f));
}
}
} else {
if ((_collisionGroups & COLLISION_GROUP_VOXELS) &&
_motionBehaviors & AVATAR_MOTION_STAND_ON_NEARBY_FLOORS) {
const float MIN_FLOOR_DETECTION_SPEED = _scale * 1.0f;
if (glm::length(_velocity) < MIN_FLOOR_DETECTION_SPEED ) {
// scan for floor
glm::vec3 direction = -_worldUpDirection;
OctreeElement* elementHit; // output from findRayIntersection
float distance; // output from findRayIntersection
BoxFace face; // output from findRayIntersection
Application::getInstance()->getVoxelTree()->findRayIntersection(bottomOfBoundingCapsule, direction, elementHit, distance, face);
const float NEARBY_FLOOR_THRESHOLD = _scale * 2.0f;
if (elementHit && distance < NEARBY_FLOOR_THRESHOLD) {
// turn on local gravity
setLocalGravity(-_worldUpDirection);
}
}
}
}
if (keyboardInput > 0.0f || glm::length2(_velocity) > 0.0f || glm::length2(_thrust) > 0.0f || ! walkingOnFloor) {
@ -888,12 +915,12 @@ void MyAvatar::updateMotorFromKeyboard(float deltaTime, bool walking) {
if (directionLength > EPSILON) {
direction /= directionLength;
// the finalMotorSpeed depends on whether we are walking or not
float finalMaxMotorSpeed = walking ? MAX_WALKING_SPEED : _maxMotorSpeed;
float finalMaxMotorSpeed = walking ? _scale * MAX_WALKING_SPEED : _scale * _maxMotorSpeed;
float motorLength = glm::length(_motorVelocity);
if (motorLength < MIN_KEYBOARD_CONTROL_SPEED) {
if (motorLength < _scale * MIN_KEYBOARD_CONTROL_SPEED) {
// an active keyboard motor should never be slower than this
_motorVelocity = MIN_KEYBOARD_CONTROL_SPEED * direction;
_motorVelocity = _scale * MIN_KEYBOARD_CONTROL_SPEED * direction;
} else {
float MOTOR_LENGTH_TIMESCALE = 1.5f;
float tau = glm::clamp(deltaTime / MOTOR_LENGTH_TIMESCALE, 0.0f, 1.0f);
@ -1566,7 +1593,8 @@ void MyAvatar::goToLocationFromResponse(const QJsonObject& jsonObject) {
}
void MyAvatar::updateMotionBehaviorsFromMenu() {
if (Menu::getInstance()->isOptionChecked(MenuOption::ObeyEnvironmentalGravity)) {
Menu* menu = Menu::getInstance();
if (menu->isOptionChecked(MenuOption::ObeyEnvironmentalGravity)) {
_motionBehaviors |= AVATAR_MOTION_OBEY_ENVIRONMENTAL_GRAVITY;
// Environmental and Local gravities are incompatible. Environmental setting trumps local.
_motionBehaviors &= ~AVATAR_MOTION_OBEY_LOCAL_GRAVITY;
@ -1576,6 +1604,14 @@ void MyAvatar::updateMotionBehaviorsFromMenu() {
if (! (_motionBehaviors & (AVATAR_MOTION_OBEY_ENVIRONMENTAL_GRAVITY | AVATAR_MOTION_OBEY_LOCAL_GRAVITY))) {
setGravity(glm::vec3(0.0f));
}
if (menu->isOptionChecked(MenuOption::StandOnNearbyFloors)) {
_motionBehaviors |= AVATAR_MOTION_STAND_ON_NEARBY_FLOORS;
// standing on floors requires collision with voxels
_collisionGroups |= COLLISION_GROUP_VOXELS;
menu->setIsOptionChecked(MenuOption::CollideWithVoxels, true);
} else {
_motionBehaviors &= ~AVATAR_MOTION_STAND_ON_NEARBY_FLOORS;
}
}
void MyAvatar::renderAttachments(RenderMode renderMode) {
@ -1602,6 +1638,11 @@ void MyAvatar::setCollisionGroups(quint32 collisionGroups) {
menu->setIsOptionChecked(MenuOption::CollideWithAvatars, (bool)(_collisionGroups & COLLISION_GROUP_AVATARS));
menu->setIsOptionChecked(MenuOption::CollideWithVoxels, (bool)(_collisionGroups & COLLISION_GROUP_VOXELS));
menu->setIsOptionChecked(MenuOption::CollideWithParticles, (bool)(_collisionGroups & COLLISION_GROUP_PARTICLES));
if (! (_collisionGroups & COLLISION_GROUP_VOXELS)) {
// no collision with voxels --> disable standing on floors
_motionBehaviors &= ~AVATAR_MOTION_STAND_ON_NEARBY_FLOORS;
menu->setIsOptionChecked(MenuOption::StandOnNearbyFloors, false);
}
}
void MyAvatar::setMotionBehaviorsByScript(quint32 flags) {

20
libraries/avatars/src/AvatarData.h
View file

@ -53,23 +53,27 @@ typedef unsigned long long quint64;
#include "HandData.h"
// avatar motion behaviors
const quint32 AVATAR_MOTION_MOTOR_ENABLED = 1U << 0;
const quint32 AVATAR_MOTION_MOTOR_KEYBOARD_ENABLED = 1U << 1;
const quint32 AVATAR_MOTION_MOTOR_USE_LOCAL_FRAME = 1U << 2;
const quint32 AVATAR_MOTION_MOTOR_COLLISION_SURFACE_ONLY = 1U << 3;
const quint32 AVATAR_MOTION_MOTOR_ENABLED = 1U << 0;
const quint32 AVATAR_MOTION_MOTOR_KEYBOARD_ENABLED = 1U << 1;
const quint32 AVATAR_MOTION_MOTOR_USE_LOCAL_FRAME = 1U << 2;
const quint32 AVATAR_MOTION_MOTOR_COLLISION_SURFACE_ONLY = 1U << 3;
const quint32 AVATAR_MOTION_OBEY_ENVIRONMENTAL_GRAVITY = 1U << 4;
const quint32 AVATAR_MOTION_OBEY_LOCAL_GRAVITY = 1U << 5;
const quint32 AVATAR_MOTION_OBEY_ENVIRONMENTAL_GRAVITY = 1U << 4;
const quint32 AVATAR_MOTION_OBEY_LOCAL_GRAVITY = 1U << 5;
const quint32 AVATAR_MOTION_STAND_ON_NEARBY_FLOORS = 1U << 6;
const quint32 AVATAR_MOTION_DEFAULTS =
AVATAR_MOTION_MOTOR_ENABLED |
AVATAR_MOTION_MOTOR_KEYBOARD_ENABLED |
AVATAR_MOTION_MOTOR_USE_LOCAL_FRAME;
AVATAR_MOTION_MOTOR_USE_LOCAL_FRAME |
AVATAR_MOTION_STAND_ON_NEARBY_FLOORS;
// these bits will be expanded as features are exposed
const quint32 AVATAR_MOTION_SCRIPTABLE_BITS =
AVATAR_MOTION_OBEY_ENVIRONMENTAL_GRAVITY |
AVATAR_MOTION_OBEY_LOCAL_GRAVITY;
AVATAR_MOTION_OBEY_LOCAL_GRAVITY |
AVATAR_MOTION_STAND_ON_NEARBY_FLOORS;
// First bitset