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-rw-r--r--scene/resources/curve.cpp153
1 files changed, 91 insertions, 62 deletions
diff --git a/scene/resources/curve.cpp b/scene/resources/curve.cpp
index 6485c1ac77..c719455a0a 100644
--- a/scene/resources/curve.cpp
+++ b/scene/resources/curve.cpp
@@ -681,7 +681,8 @@ void Curve2D::_bake() const {
List<Vector2> pointlist;
List<real_t> distlist;
- pointlist.push_back(position); //start always from origin
+ // Start always from origin.
+ pointlist.push_back(position);
distlist.push_back(0.0);
for (int i = 0; i < points.size() - 1; i++) {
@@ -728,15 +729,18 @@ void Curve2D::_bake() const {
p = np;
}
}
- }
- Vector2 lastpos = points[points.size() - 1].position;
+ Vector2 npp = points[i + 1].position;
+ real_t d = position.distance_to(npp);
+
+ position = npp;
+ dist += d;
+
+ pointlist.push_back(position);
+ distlist.push_back(dist);
+ }
- real_t rem = position.distance_to(lastpos);
- dist += rem;
baked_max_ofs = dist;
- pointlist.push_back(lastpos);
- distlist.push_back(dist);
baked_point_cache.resize(pointlist.size());
baked_dist_cache.resize(distlist.size());
@@ -763,7 +767,7 @@ Vector2 Curve2D::interpolate_baked(real_t p_offset, bool p_cubic) const {
_bake();
}
- //validate//
+ // Validate: Curve may not have baked points.
int pc = baked_point_cache.size();
ERR_FAIL_COND_V_MSG(pc == 0, Vector2(), "No points in Curve2D.");
@@ -771,18 +775,19 @@ Vector2 Curve2D::interpolate_baked(real_t p_offset, bool p_cubic) const {
return baked_point_cache.get(0);
}
- int bpc = baked_point_cache.size();
const Vector2 *r = baked_point_cache.ptr();
if (p_offset < 0) {
return r[0];
}
if (p_offset >= baked_max_ofs) {
- return r[bpc - 1];
+ return r[pc - 1];
}
- int start = 0, end = bpc, idx = (end + start) / 2;
- // binary search to find baked points
+ int start = 0;
+ int end = pc;
+ int idx = (end + start) / 2;
+ // Binary search to find baked points.
while (start < idx) {
real_t offset = baked_dist_cache[idx];
if (p_offset <= offset) {
@@ -803,7 +808,7 @@ Vector2 Curve2D::interpolate_baked(real_t p_offset, bool p_cubic) const {
if (p_cubic) {
Vector2 pre = idx > 0 ? r[idx - 1] : r[idx];
- Vector2 post = (idx < (bpc - 2)) ? r[idx + 2] : r[idx + 1];
+ Vector2 post = (idx < (pc - 2)) ? r[idx + 2] : r[idx + 1];
return r[idx].cubic_interpolate(r[idx + 1], pre, post, frac);
} else {
return r[idx].lerp(r[idx + 1], frac);
@@ -829,13 +834,13 @@ real_t Curve2D::get_bake_interval() const {
}
Vector2 Curve2D::get_closest_point(const Vector2 &p_to_point) const {
- // Brute force method
+ // Brute force method.
if (baked_cache_dirty) {
_bake();
}
- //validate//
+ // Validate: Curve may not have baked points.
int pc = baked_point_cache.size();
ERR_FAIL_COND_V_MSG(pc == 0, Vector2(), "No points in Curve2D.");
@@ -867,13 +872,13 @@ Vector2 Curve2D::get_closest_point(const Vector2 &p_to_point) const {
}
real_t Curve2D::get_closest_offset(const Vector2 &p_to_point) const {
- // Brute force method
+ // Brute force method.
if (baked_cache_dirty) {
_bake();
}
- //validate//
+ // Validate: Curve may not have baked points.
int pc = baked_point_cache.size();
ERR_FAIL_COND_V_MSG(pc == 0, 0.0f, "No points in Curve2D.");
@@ -1009,11 +1014,7 @@ void Curve2D::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::INT, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
}
-Curve2D::Curve2D() {
- /* add_point(Vector2(-1,0,0));
- add_point(Vector2(0,2,0));
- add_point(Vector2(0,3,5));*/
-}
+Curve2D::Curve2D() {}
/***********************************************************************************/
/***********************************************************************************/
@@ -1194,6 +1195,7 @@ void Curve3D::_bake() const {
List<Plane> pointlist;
List<real_t> distlist;
+ // Start always from origin.
pointlist.push_back(Plane(position, points[0].tilt));
distlist.push_back(0.0);
@@ -1244,16 +1246,22 @@ void Curve3D::_bake() const {
p = np;
}
}
- }
- Vector3 lastpos = points[points.size() - 1].position;
- real_t lastilt = points[points.size() - 1].tilt;
+ Vector3 npp = points[i + 1].position;
+ real_t d = position.distance_to(npp);
+
+ position = npp;
+ Plane post;
+ post.normal = position;
+ post.d = points[i + 1].tilt;
+
+ dist += d;
+
+ pointlist.push_back(post);
+ distlist.push_back(dist);
+ }
- real_t rem = position.distance_to(lastpos);
- dist += rem;
baked_max_ofs = dist;
- pointlist.push_back(Plane(lastpos, lastilt));
- distlist.push_back(dist);
baked_point_cache.resize(pointlist.size());
Vector3 *w = baked_point_cache.ptrw();
@@ -1328,7 +1336,7 @@ Vector3 Curve3D::interpolate_baked(real_t p_offset, bool p_cubic) const {
_bake();
}
- //validate//
+ // Validate: Curve may not have baked points.
int pc = baked_point_cache.size();
ERR_FAIL_COND_V_MSG(pc == 0, Vector3(), "No points in Curve3D.");
@@ -1336,18 +1344,19 @@ Vector3 Curve3D::interpolate_baked(real_t p_offset, bool p_cubic) const {
return baked_point_cache.get(0);
}
- int bpc = baked_point_cache.size();
const Vector3 *r = baked_point_cache.ptr();
if (p_offset < 0) {
return r[0];
}
if (p_offset >= baked_max_ofs) {
- return r[bpc - 1];
+ return r[pc - 1];
}
- int start = 0, end = bpc, idx = (end + start) / 2;
- // binary search to find baked points
+ int start = 0;
+ int end = pc;
+ int idx = (end + start) / 2;
+ // Binary search to find baked points.
while (start < idx) {
real_t offset = baked_dist_cache[idx];
if (p_offset <= offset) {
@@ -1368,7 +1377,7 @@ Vector3 Curve3D::interpolate_baked(real_t p_offset, bool p_cubic) const {
if (p_cubic) {
Vector3 pre = idx > 0 ? r[idx - 1] : r[idx];
- Vector3 post = (idx < (bpc - 2)) ? r[idx + 2] : r[idx + 1];
+ Vector3 post = (idx < (pc - 2)) ? r[idx + 2] : r[idx + 1];
return r[idx].cubic_interpolate(r[idx + 1], pre, post, frac);
} else {
return r[idx].lerp(r[idx + 1], frac);
@@ -1380,7 +1389,7 @@ real_t Curve3D::interpolate_baked_tilt(real_t p_offset) const {
_bake();
}
- //validate//
+ // Validate: Curve may not have baked tilts.
int pc = baked_tilt_cache.size();
ERR_FAIL_COND_V_MSG(pc == 0, 0, "No tilts in Curve3D.");
@@ -1388,29 +1397,37 @@ real_t Curve3D::interpolate_baked_tilt(real_t p_offset) const {
return baked_tilt_cache.get(0);
}
- int bpc = baked_tilt_cache.size();
const real_t *r = baked_tilt_cache.ptr();
if (p_offset < 0) {
return r[0];
}
if (p_offset >= baked_max_ofs) {
- return r[bpc - 1];
+ return r[pc - 1];
}
- int idx = Math::floor((double)p_offset / (double)bake_interval);
- real_t frac = Math::fmod(p_offset, bake_interval);
-
- if (idx >= bpc - 1) {
- return r[bpc - 1];
- } else if (idx == bpc - 2) {
- if (frac > 0) {
- frac /= Math::fmod(baked_max_ofs, bake_interval);
+ int start = 0;
+ int end = pc;
+ int idx = (end + start) / 2;
+ // Binary search to find baked points.
+ while (start < idx) {
+ real_t offset = baked_dist_cache[idx];
+ if (p_offset <= offset) {
+ end = idx;
+ } else {
+ start = idx;
}
- } else {
- frac /= bake_interval;
+ idx = (end + start) / 2;
}
+ real_t offset_begin = baked_dist_cache[idx];
+ real_t offset_end = baked_dist_cache[idx + 1];
+
+ real_t idx_interval = offset_end - offset_begin;
+ ERR_FAIL_COND_V_MSG(p_offset < offset_begin || p_offset > offset_end, 0, "failed to find baked segment");
+
+ real_t frac = (p_offset - offset_begin) / idx_interval;
+
return Math::lerp(r[idx], r[idx + 1], (real_t)frac);
}
@@ -1419,8 +1436,7 @@ Vector3 Curve3D::interpolate_baked_up_vector(real_t p_offset, bool p_apply_tilt)
_bake();
}
- //validate//
- // curve may not have baked up vectors
+ // Validate: Curve may not have baked up vectors.
int count = baked_up_vector_cache.size();
ERR_FAIL_COND_V_MSG(count == 0, Vector3(0, 1, 0), "No up vectors in Curve3D.");
@@ -1432,10 +1448,27 @@ Vector3 Curve3D::interpolate_baked_up_vector(real_t p_offset, bool p_apply_tilt)
const Vector3 *rp = baked_point_cache.ptr();
const real_t *rt = baked_tilt_cache.ptr();
- real_t offset = CLAMP(p_offset, 0.0f, baked_max_ofs);
+ int start = 0;
+ int end = count;
+ int idx = (end + start) / 2;
+ // Binary search to find baked points.
+ while (start < idx) {
+ real_t offset = baked_dist_cache[idx];
+ if (p_offset <= offset) {
+ end = idx;
+ } else {
+ start = idx;
+ }
+ idx = (end + start) / 2;
+ }
+
+ real_t offset_begin = baked_dist_cache[idx];
+ real_t offset_end = baked_dist_cache[idx + 1];
- int idx = Math::floor((double)offset / (double)bake_interval);
- real_t frac = Math::fmod(offset, bake_interval) / bake_interval;
+ real_t idx_interval = offset_end - offset_begin;
+ ERR_FAIL_COND_V_MSG(p_offset < offset_begin || p_offset > offset_end, Vector3(0, 1, 0), "failed to find baked segment");
+
+ real_t frac = (p_offset - offset_begin) / idx_interval;
if (idx == count - 1) {
return p_apply_tilt ? r[idx].rotated((rp[idx] - rp[idx - 1]).normalized(), rt[idx]) : r[idx];
@@ -1486,13 +1519,13 @@ PackedVector3Array Curve3D::get_baked_up_vectors() const {
}
Vector3 Curve3D::get_closest_point(const Vector3 &p_to_point) const {
- // Brute force method
+ // Brute force method.
if (baked_cache_dirty) {
_bake();
}
- //validate//
+ // Validate: Curve may not have baked points.
int pc = baked_point_cache.size();
ERR_FAIL_COND_V_MSG(pc == 0, Vector3(), "No points in Curve3D.");
@@ -1524,13 +1557,13 @@ Vector3 Curve3D::get_closest_point(const Vector3 &p_to_point) const {
}
real_t Curve3D::get_closest_offset(const Vector3 &p_to_point) const {
- // Brute force method
+ // Brute force method.
if (baked_cache_dirty) {
_bake();
}
- //validate//
+ // Validate: Curve may not have baked points.
int pc = baked_point_cache.size();
ERR_FAIL_COND_V_MSG(pc == 0, 0.0f, "No points in Curve3D.");
@@ -1705,8 +1738,4 @@ void Curve3D::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "up_vector_enabled"), "set_up_vector_enabled", "is_up_vector_enabled");
}
-Curve3D::Curve3D() {
- /* add_point(Vector3(-1,0,0));
- add_point(Vector3(0,2,0));
- add_point(Vector3(0,3,5));*/
-}
+Curve3D::Curve3D() {}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 06:48:41 +0000