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Merge pull request #7258 from hyperlogic/tony/better-lean-detection

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MyAvatar: use a box instead of a sphere for horizontal re-centering
This commit is contained in:
Philip Rosedale 2016-03-07 15:05:10 -08:00
commit 7c765f3d5a
1 changed files with 18 additions and 5 deletions
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23
interface/src/avatar/MyAvatar.cpp
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@ -1918,13 +1918,26 @@ bool MyAvatar::FollowHelper::shouldActivateRotation(const MyAvatar& myAvatar, co
bool MyAvatar::FollowHelper::shouldActivateHorizontal(const MyAvatar& myAvatar, const glm::mat4& desiredBodyMatrix, const glm::mat4& currentBodyMatrix) const {
const float CYLINDER_RADIUS = 0.3f;
// -z axis of currentBodyMatrix in world space.
glm::vec3 forward = glm::normalize(glm::vec3(-currentBodyMatrix[0][2], -currentBodyMatrix[1][2], -currentBodyMatrix[2][2]));
// x axis of currentBodyMatrix in world space.
glm::vec3 right = glm::normalize(glm::vec3(currentBodyMatrix[0][0], currentBodyMatrix[1][0], currentBodyMatrix[2][0]));
glm::vec3 offset = extractTranslation(desiredBodyMatrix) - extractTranslation(currentBodyMatrix);
glm::vec3 radialOffset(offset.x, 0.0f, offset.z);
float radialDistance = glm::length(radialOffset);
return radialDistance > CYLINDER_RADIUS;
float forwardLeanAmount = glm::dot(forward, offset);
float lateralLeanAmount = glm::dot(right, offset);
const float MAX_LATERAL_LEAN = 0.3f;
const float MAX_FORWARD_LEAN = 0.15f;
const float MAX_BACKWARD_LEAN = 0.1f;
if (forwardLeanAmount > 0 && forwardLeanAmount > MAX_FORWARD_LEAN) {
return true;
} else if (forwardLeanAmount < 0 && forwardLeanAmount < -MAX_BACKWARD_LEAN) {
return true;
}
return fabs(lateralLeanAmount) > MAX_LATERAL_LEAN;
}
bool MyAvatar::FollowHelper::shouldActivateVertical(const MyAvatar& myAvatar, const glm::mat4& desiredBodyMatrix, const glm::mat4& currentBodyMatrix) const {