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-rw-r--r--scene/3d/path.cpp312
1 files changed, 65 insertions, 247 deletions
diff --git a/scene/3d/path.cpp b/scene/3d/path.cpp
index 339a434a6e..190967d76c 100644
--- a/scene/3d/path.cpp
+++ b/scene/3d/path.cpp
@@ -5,8 +5,8 @@
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
-/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
@@ -44,10 +44,11 @@ void Path::_curve_changed() {
emit_signal("curve_changed");
}
- // update the configuration warnings of all children of type OrientedPathFollows
+ // update the configuration warnings of all children of type PathFollow
+ // previously used for PathFollowOriented (now enforced orientation is done in PathFollow)
if (is_inside_tree()) {
for (int i = 0; i < get_child_count(); i++) {
- OrientedPathFollow *child = Object::cast_to<OrientedPathFollow>(get_child(i));
+ PathFollow *child = Object::cast_to<PathFollow>(get_child(i));
if (child) {
child->update_configuration_warning();
}
@@ -105,24 +106,66 @@ void PathFollow::_update_transform() {
return;
}
+ float bl = c->get_baked_length();
+ if (bl == 0.0) {
+ return;
+ }
+ float bi = c->get_bake_interval();
float o = offset;
+ float o_next = offset + bi;
if (loop) {
- o = Math::fposmod(o, c->get_baked_length());
+ o = Math::fposmod(o, bl);
+ o_next = Math::fposmod(o_next, bl);
+ } else if (rotation_mode == ROTATION_ORIENTED && o_next >= bl) {
+ o = bl - bi;
+ o_next = bl;
}
Vector3 pos = c->interpolate_baked(o, cubic);
Transform t = get_transform();
+ // Vector3 pos_offset = Vector3(h_offset, v_offset, 0); not used in all cases
+ // will be replaced by "Vector3(h_offset, v_offset, 0)" where it was formerly used
+
+ if (rotation_mode == ROTATION_ORIENTED) {
+
+ Vector3 forward = c->interpolate_baked(o_next, cubic) - pos;
+
+ if (forward.length_squared() < CMP_EPSILON2)
+ forward = Vector3(0, 0, 1);
+ else
+ forward.normalize();
- t.origin = pos;
- Vector3 pos_offset = Vector3(h_offset, v_offset, 0);
+ Vector3 up = c->interpolate_baked_up_vector(o, true);
- if (rotation_mode != ROTATION_NONE) {
+ if (o_next < o) {
+ Vector3 up1 = c->interpolate_baked_up_vector(o_next, true);
+ Vector3 axis = up.cross(up1);
+
+ if (axis.length_squared() < CMP_EPSILON2)
+ axis = forward;
+ else
+ axis.normalize();
+
+ up.rotate(axis, up.angle_to(up1) * 0.5f);
+ }
+
+ Vector3 scale = t.basis.get_scale();
+ Vector3 sideways = up.cross(forward).normalized();
+ up = forward.cross(sideways).normalized();
+
+ t.basis.set(sideways, up, forward);
+ t.basis.scale_local(scale);
+
+ t.origin = pos + sideways * h_offset + up * v_offset;
+ } else if (rotation_mode != ROTATION_NONE) {
// perform parallel transport
//
// see C. Dougan, The Parallel Transport Frame, Game Programming Gems 2 for example
// for a discussion about why not Frenet frame.
+ t.origin = pos;
+
Vector3 t_prev = (pos - c->interpolate_baked(o - delta_offset, cubic)).normalized();
Vector3 t_cur = (c->interpolate_baked(o + delta_offset, cubic) - pos).normalized();
@@ -165,9 +208,9 @@ void PathFollow::_update_transform() {
}
}
- t.translate(pos_offset);
+ t.translate(Vector3(h_offset, v_offset, 0));
} else {
- t.origin += pos_offset;
+ t.origin = pos + Vector3(h_offset, v_offset, 0);
}
set_transform(t);
@@ -213,7 +256,7 @@ void PathFollow::_validate_property(PropertyInfo &property) const {
if (path && path->get_curve().is_valid())
max = path->get_curve()->get_baked_length();
- property.hint_string = "0," + rtos(max) + ",0.01";
+ property.hint_string = "0," + rtos(max) + ",0.01,or_greater";
}
}
@@ -224,6 +267,11 @@ String PathFollow::get_configuration_warning() const {
if (!Object::cast_to<Path>(get_parent())) {
return TTR("PathFollow only works when set as a child of a Path node.");
+ } else {
+ Path *path = Object::cast_to<Path>(get_parent());
+ if (path->get_curve().is_valid() && !path->get_curve()->is_up_vector_enabled() && rotation_mode == ROTATION_ORIENTED) {
+ return TTR("PathFollow ROTATION_ORIENTED requires \"Up Vector\" enabled in its parent Path's Curve resource.");
+ }
}
return String();
@@ -252,11 +300,11 @@ void PathFollow::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_loop", "loop"), &PathFollow::set_loop);
ClassDB::bind_method(D_METHOD("has_loop"), &PathFollow::has_loop);
- ADD_PROPERTY(PropertyInfo(Variant::REAL, "offset", PROPERTY_HINT_EXP_RANGE, "0,10000,0.01,or_greater"), "set_offset", "get_offset");
- ADD_PROPERTY(PropertyInfo(Variant::REAL, "unit_offset", PROPERTY_HINT_RANGE, "0,1,0.0001", PROPERTY_USAGE_EDITOR), "set_unit_offset", "get_unit_offset");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "offset", PROPERTY_HINT_RANGE, "0,10000,0.01,or_greater"), "set_offset", "get_offset");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "unit_offset", PROPERTY_HINT_RANGE, "0,1,0.0001,or_greater", PROPERTY_USAGE_EDITOR), "set_unit_offset", "get_unit_offset");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "h_offset"), "set_h_offset", "get_h_offset");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "v_offset"), "set_v_offset", "get_v_offset");
- ADD_PROPERTY(PropertyInfo(Variant::INT, "rotation_mode", PROPERTY_HINT_ENUM, "None,Y,XY,XYZ"), "set_rotation_mode", "get_rotation_mode");
+ ADD_PROPERTY(PropertyInfo(Variant::INT, "rotation_mode", PROPERTY_HINT_ENUM, "None,Y,XY,XYZ,Oriented"), "set_rotation_mode", "get_rotation_mode");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "cubic_interp"), "set_cubic_interpolation", "get_cubic_interpolation");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "loop"), "set_loop", "has_loop");
@@ -264,6 +312,7 @@ void PathFollow::_bind_methods() {
BIND_ENUM_CONSTANT(ROTATION_Y);
BIND_ENUM_CONSTANT(ROTATION_XY);
BIND_ENUM_CONSTANT(ROTATION_XYZ);
+ BIND_ENUM_CONSTANT(ROTATION_ORIENTED);
}
void PathFollow::set_offset(float p_offset) {
@@ -322,6 +371,8 @@ float PathFollow::get_unit_offset() const {
void PathFollow::set_rotation_mode(RotationMode p_rotation_mode) {
rotation_mode = p_rotation_mode;
+
+ update_configuration_warning();
_update_transform();
}
@@ -351,236 +402,3 @@ PathFollow::PathFollow() {
cubic = true;
loop = true;
}
-
-//////////////
-
-void OrientedPathFollow::_update_transform() {
-
- if (!path)
- return;
-
- Ref<Curve3D> c = path->get_curve();
- if (!c.is_valid())
- return;
-
- int count = c->get_point_count();
- if (count < 2)
- return;
-
- if (delta_offset == 0) {
- return;
- }
-
- float offset = get_offset();
- float bl = c->get_baked_length();
- float bi = c->get_bake_interval();
- float o = offset;
- float o_next = offset + bi;
-
- if (has_loop()) {
- o = Math::fposmod(o, bl);
- o_next = Math::fposmod(o_next, bl);
- } else if (o_next >= bl) {
- o = bl - bi;
- o_next = bl;
- }
-
- bool cubic = get_cubic_interpolation();
- Vector3 pos = c->interpolate_baked(o, cubic);
- Vector3 forward = c->interpolate_baked(o_next, cubic) - pos;
-
- if (forward.length_squared() < CMP_EPSILON2)
- forward = Vector3(0, 0, 1);
- else
- forward.normalize();
-
- Vector3 up = c->interpolate_baked_up_vector(o, true);
-
- if (o_next < o) {
- Vector3 up1 = c->interpolate_baked_up_vector(o_next, true);
- Vector3 axis = up.cross(up1);
-
- if (axis.length_squared() < CMP_EPSILON2)
- axis = forward;
- else
- axis.normalize();
-
- up.rotate(axis, up.angle_to(up1) * 0.5f);
- }
-
- Transform t = get_transform();
- Vector3 scale = t.basis.get_scale();
-
- Vector3 sideways = up.cross(forward).normalized();
- up = forward.cross(sideways).normalized();
-
- t.basis.set(sideways, up, forward);
- t.basis.scale_local(scale);
-
- t.origin = pos + sideways * get_h_offset() + up * get_v_offset();
-
- set_transform(t);
-}
-
-void OrientedPathFollow::_notification(int p_what) {
-
- switch (p_what) {
-
- case NOTIFICATION_ENTER_TREE: {
-
- Node *parent = get_parent();
- if (parent) {
- path = Object::cast_to<Path>(parent);
- if (path) {
- _update_transform();
- }
- }
-
- } break;
- case NOTIFICATION_EXIT_TREE: {
-
- path = NULL;
- } break;
- }
-}
-
-void OrientedPathFollow::set_cubic_interpolation(bool p_enable) {
-
- cubic = p_enable;
-}
-
-bool OrientedPathFollow::get_cubic_interpolation() const {
-
- return cubic;
-}
-
-void OrientedPathFollow::_validate_property(PropertyInfo &property) const {
-
- if (property.name == "offset") {
-
- float max = 10000;
- if (path && path->get_curve().is_valid())
- max = path->get_curve()->get_baked_length();
-
- property.hint_string = "0," + rtos(max) + ",0.01";
- }
-}
-
-String OrientedPathFollow::get_configuration_warning() const {
-
- if (!is_visible_in_tree() || !is_inside_tree())
- return String();
-
- if (!Object::cast_to<Path>(get_parent())) {
- return TTR("OrientedPathFollow only works when set as a child of a Path node.");
- } else {
- Path *path = Object::cast_to<Path>(get_parent());
- if (path->get_curve().is_valid() && !path->get_curve()->is_up_vector_enabled()) {
- return TTR("OrientedPathFollow requires up vectors enabled in its parent Path.");
- }
- }
-
- return String();
-}
-
-void OrientedPathFollow::_bind_methods() {
-
- ClassDB::bind_method(D_METHOD("set_offset", "offset"), &OrientedPathFollow::set_offset);
- ClassDB::bind_method(D_METHOD("get_offset"), &OrientedPathFollow::get_offset);
-
- ClassDB::bind_method(D_METHOD("set_h_offset", "h_offset"), &OrientedPathFollow::set_h_offset);
- ClassDB::bind_method(D_METHOD("get_h_offset"), &OrientedPathFollow::get_h_offset);
-
- ClassDB::bind_method(D_METHOD("set_v_offset", "v_offset"), &OrientedPathFollow::set_v_offset);
- ClassDB::bind_method(D_METHOD("get_v_offset"), &OrientedPathFollow::get_v_offset);
-
- ClassDB::bind_method(D_METHOD("set_unit_offset", "unit_offset"), &OrientedPathFollow::set_unit_offset);
- ClassDB::bind_method(D_METHOD("get_unit_offset"), &OrientedPathFollow::get_unit_offset);
-
- ClassDB::bind_method(D_METHOD("set_cubic_interpolation", "enable"), &OrientedPathFollow::set_cubic_interpolation);
- ClassDB::bind_method(D_METHOD("get_cubic_interpolation"), &OrientedPathFollow::get_cubic_interpolation);
-
- ClassDB::bind_method(D_METHOD("set_loop", "loop"), &OrientedPathFollow::set_loop);
- ClassDB::bind_method(D_METHOD("has_loop"), &OrientedPathFollow::has_loop);
-
- ADD_PROPERTY(PropertyInfo(Variant::REAL, "offset", PROPERTY_HINT_RANGE, "0,10000,0.01"), "set_offset", "get_offset");
- ADD_PROPERTY(PropertyInfo(Variant::REAL, "unit_offset", PROPERTY_HINT_RANGE, "0,1,0.0001", PROPERTY_USAGE_EDITOR), "set_unit_offset", "get_unit_offset");
- ADD_PROPERTY(PropertyInfo(Variant::REAL, "h_offset"), "set_h_offset", "get_h_offset");
- ADD_PROPERTY(PropertyInfo(Variant::REAL, "v_offset"), "set_v_offset", "get_v_offset");
- ADD_PROPERTY(PropertyInfo(Variant::BOOL, "cubic_interp"), "set_cubic_interpolation", "get_cubic_interpolation");
- ADD_PROPERTY(PropertyInfo(Variant::BOOL, "loop"), "set_loop", "has_loop");
-}
-
-void OrientedPathFollow::set_offset(float p_offset) {
- delta_offset = p_offset - offset;
- offset = p_offset;
-
- if (path)
- _update_transform();
- _change_notify("offset");
- _change_notify("unit_offset");
-}
-
-void OrientedPathFollow::set_h_offset(float p_h_offset) {
-
- h_offset = p_h_offset;
- if (path)
- _update_transform();
-}
-
-float OrientedPathFollow::get_h_offset() const {
-
- return h_offset;
-}
-
-void OrientedPathFollow::set_v_offset(float p_v_offset) {
-
- v_offset = p_v_offset;
- if (path)
- _update_transform();
-}
-
-float OrientedPathFollow::get_v_offset() const {
-
- return v_offset;
-}
-
-float OrientedPathFollow::get_offset() const {
-
- return offset;
-}
-
-void OrientedPathFollow::set_unit_offset(float p_unit_offset) {
-
- if (path && path->get_curve().is_valid() && path->get_curve()->get_baked_length())
- set_offset(p_unit_offset * path->get_curve()->get_baked_length());
-}
-
-float OrientedPathFollow::get_unit_offset() const {
-
- if (path && path->get_curve().is_valid() && path->get_curve()->get_baked_length())
- return get_offset() / path->get_curve()->get_baked_length();
- else
- return 0;
-}
-
-void OrientedPathFollow::set_loop(bool p_loop) {
-
- loop = p_loop;
-}
-
-bool OrientedPathFollow::has_loop() const {
-
- return loop;
-}
-
-OrientedPathFollow::OrientedPathFollow() {
-
- offset = 0;
- delta_offset = 0;
- h_offset = 0;
- v_offset = 0;
- path = NULL;
- cubic = true;
- loop = true;
-}
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