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-rw-r--r--scene/resources/curve.cpp41
-rw-r--r--scene/resources/curve.h1
-rw-r--r--scene/resources/texture.cpp2
3 files changed, 43 insertions, 1 deletions
diff --git a/scene/resources/curve.cpp b/scene/resources/curve.cpp
index 49b78a091d..eda9af9dde 100644
--- a/scene/resources/curve.cpp
+++ b/scene/resources/curve.cpp
@@ -936,6 +936,46 @@ Vector2 Curve2D::sample_baked(real_t p_offset, bool p_cubic) const {
}
}
+Transform2D Curve2D::sample_baked_with_rotation(real_t p_offset, bool p_cubic, bool p_loop, real_t p_lookahead) const {
+ real_t path_length = get_baked_length(); // Ensure baked.
+ ERR_FAIL_COND_V_MSG(path_length == 0, Transform2D(), "Length of Curve2D is 0.");
+
+ Vector2 pos = sample_baked(p_offset, p_cubic);
+
+ real_t ahead = p_offset + p_lookahead;
+
+ if (p_loop && ahead >= path_length) {
+ // If our lookahead will loop, we need to check if the path is closed.
+ int point_count = get_point_count();
+ if (point_count > 0) {
+ Vector2 start_point = get_point_position(0);
+ Vector2 end_point = get_point_position(point_count - 1);
+ if (start_point == end_point) {
+ // Since the path is closed we want to 'smooth off'
+ // the corner at the start/end.
+ // So we wrap the lookahead back round.
+ ahead = Math::fmod(ahead, path_length);
+ }
+ }
+ }
+
+ Vector2 ahead_pos = sample_baked(ahead, p_cubic);
+
+ Vector2 tangent_to_curve;
+ if (ahead_pos == pos) {
+ // This will happen at the end of non-looping or non-closed paths.
+ // We'll try a look behind instead, in order to get a meaningful angle.
+ tangent_to_curve =
+ (pos - sample_baked(p_offset - p_lookahead, p_cubic)).normalized();
+ } else {
+ tangent_to_curve = (ahead_pos - pos).normalized();
+ }
+
+ Vector2 normal_of_curve = -tangent_to_curve.orthogonal();
+
+ return Transform2D(normal_of_curve, tangent_to_curve, pos);
+}
+
PackedVector2Array Curve2D::get_baked_points() const {
if (baked_cache_dirty) {
_bake();
@@ -1184,6 +1224,7 @@ void Curve2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_baked_length"), &Curve2D::get_baked_length);
ClassDB::bind_method(D_METHOD("sample_baked", "offset", "cubic"), &Curve2D::sample_baked, DEFVAL(false));
+ ClassDB::bind_method(D_METHOD("sample_baked_with_rotation", "offset", "cubic", "loop", "lookahead"), &Curve2D::sample_baked_with_rotation, DEFVAL(false), DEFVAL(true), DEFVAL(4.0));
ClassDB::bind_method(D_METHOD("get_baked_points"), &Curve2D::get_baked_points);
ClassDB::bind_method(D_METHOD("get_closest_point", "to_point"), &Curve2D::get_closest_point);
ClassDB::bind_method(D_METHOD("get_closest_offset", "to_point"), &Curve2D::get_closest_offset);
diff --git a/scene/resources/curve.h b/scene/resources/curve.h
index 88b6dda096..fa1d35aab1 100644
--- a/scene/resources/curve.h
+++ b/scene/resources/curve.h
@@ -216,6 +216,7 @@ public:
real_t get_baked_length() const;
Vector2 sample_baked(real_t p_offset, bool p_cubic = false) const;
+ Transform2D sample_baked_with_rotation(real_t p_offset, bool p_cubic = false, bool p_loop = true, real_t p_lookahead = 4.0) const;
PackedVector2Array get_baked_points() const; //useful for going through
Vector2 get_closest_point(const Vector2 &p_to_point) const;
real_t get_closest_offset(const Vector2 &p_to_point) const;
diff --git a/scene/resources/texture.cpp b/scene/resources/texture.cpp
index 5232e8fcab..a6fb359051 100644
--- a/scene/resources/texture.cpp
+++ b/scene/resources/texture.cpp
@@ -1663,7 +1663,7 @@ Ref<Image> AtlasTexture::get_image() const {
return Ref<Image>();
}
- return atlas->get_image()->get_rect(region);
+ return atlas->get_image()->get_region(region);
}
AtlasTexture::AtlasTexture() {}