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Fix repeated updates of PathFollow3D Transform 

Add optional parameter to specify whether applying rotation to the
PathFollow3D's Transform is necessary, preventing erroneous updates.

(cherry picked from commit be3a1769fe)
This commit is contained in:
Maganty Rushyendra 2020-07-08 10:06:02 +08:00 committed by Rémi Verschelde
parent c55e68d311
commit 76a43c93cd
2 changed files with 38 additions and 36 deletions
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6
scene/3d/path.cpp
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@ -93,7 +93,7 @@ Path::Path() {
////////////// //////////////
void PathFollow::_update_transform() { void PathFollow::_update_transform(bool p_update_xyz_rot) {
if (!path) if (!path)
return; return;
@ -163,6 +163,7 @@ void PathFollow::_update_transform() {
t.origin = pos; t.origin = pos;
if (p_update_xyz_rot) { // Only update rotation if some parameter has changed - i.e. not on addition to scene tree
Vector3 t_prev = (pos - c->interpolate_baked(offset - delta_offset, cubic)).normalized(); Vector3 t_prev = (pos - c->interpolate_baked(offset - delta_offset, cubic)).normalized();
Vector3 t_cur = (c->interpolate_baked(offset + delta_offset, cubic) - pos).normalized(); Vector3 t_cur = (c->interpolate_baked(offset + delta_offset, cubic) - pos).normalized();
@ -204,6 +205,7 @@ void PathFollow::_update_transform() {
t.rotate_basis(tilt_axis.normalized(), tilt_angle); t.rotate_basis(tilt_axis.normalized(), tilt_angle);
} }
} }
}
t.translate(Vector3(h_offset, v_offset, 0)); t.translate(Vector3(h_offset, v_offset, 0));
} else { } else {
@ -223,7 +225,7 @@ void PathFollow::_notification(int p_what) {
if (parent) { if (parent) {
path = Object::cast_to<Path>(parent); path = Object::cast_to<Path>(parent);
if (path) { if (path) {
_update_transform(); _update_transform(false);
} }
} }

2
scene/3d/path.h
View File

@ -77,7 +77,7 @@ private:
bool loop; bool loop;
RotationMode rotation_mode; RotationMode rotation_mode;
void _update_transform(); void _update_transform(bool p_update_xyz_rot = true);
protected: protected:
virtual void _validate_property(PropertyInfo &property) const; virtual void _validate_property(PropertyInfo &property) const;