33b5c57199
- Renames PackedIntArray to PackedInt32Array. - Renames PackedFloatArray to PackedFloat32Array. - Adds PackedInt64Array and PackedFloat64Array. - Renames Variant::REAL to Variant::FLOAT for consistency. Packed arrays are for storing large amount of data and creating stuff like meshes, buffers. textures, etc. Forcing them to be 64 is a huge waste of memory. That said, many users requested the ability to have 64 bits packed arrays for their games, so this is just an optional added type. For Variant, the float datatype is always 64 bits, and exposed as `float`. We still have `real_t` which is the datatype that can change from 32 to 64 bits depending on a compile flag (not entirely working right now, but that's the idea). It affects math related datatypes and code only. Neither Variant nor PackedArray make use of real_t, which is only intended for math precision, so the term is removed from there to keep only float.
1701 lines
47 KiB
C++
1701 lines
47 KiB
C++
/*************************************************************************/
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/* curve.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "curve.h"
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#include "core/core_string_names.h"
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template <class T>
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static _FORCE_INLINE_ T _bezier_interp(real_t t, T start, T control_1, T control_2, T end) {
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/* Formula from Wikipedia article on Bezier curves. */
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real_t omt = (1.0 - t);
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real_t omt2 = omt * omt;
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real_t omt3 = omt2 * omt;
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real_t t2 = t * t;
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real_t t3 = t2 * t;
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return start * omt3 + control_1 * omt2 * t * 3.0 + control_2 * omt * t2 * 3.0 + end * t3;
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}
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const char *Curve::SIGNAL_RANGE_CHANGED = "range_changed";
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Curve::Curve() {
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_bake_resolution = 100;
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_baked_cache_dirty = false;
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_min_value = 0;
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_max_value = 1;
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_minmax_set_once = 0b00;
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}
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int Curve::add_point(Vector2 p_pos, real_t left_tangent, real_t right_tangent, TangentMode left_mode, TangentMode right_mode) {
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// Add a point and preserve order
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// Curve bounds is in 0..1
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if (p_pos.x > MAX_X)
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p_pos.x = MAX_X;
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else if (p_pos.x < MIN_X)
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p_pos.x = MIN_X;
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int ret = -1;
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if (_points.size() == 0) {
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_points.push_back(Point(p_pos, left_tangent, right_tangent, left_mode, right_mode));
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ret = 0;
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} else if (_points.size() == 1) {
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// TODO Is the `else` able to handle this block already?
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real_t diff = p_pos.x - _points[0].pos.x;
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if (diff > 0) {
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_points.push_back(Point(p_pos, left_tangent, right_tangent, left_mode, right_mode));
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ret = 1;
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} else {
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_points.insert(0, Point(p_pos, left_tangent, right_tangent, left_mode, right_mode));
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ret = 0;
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}
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} else {
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int i = get_index(p_pos.x);
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if (i == 0 && p_pos.x < _points[0].pos.x) {
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// Insert before anything else
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_points.insert(0, Point(p_pos, left_tangent, right_tangent, left_mode, right_mode));
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ret = 0;
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} else {
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// Insert between i and i+1
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++i;
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_points.insert(i, Point(p_pos, left_tangent, right_tangent, left_mode, right_mode));
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ret = i;
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}
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}
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update_auto_tangents(ret);
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mark_dirty();
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return ret;
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}
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int Curve::get_index(real_t offset) const {
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// Lower-bound float binary search
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int imin = 0;
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int imax = _points.size() - 1;
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while (imax - imin > 1) {
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int m = (imin + imax) / 2;
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real_t a = _points[m].pos.x;
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real_t b = _points[m + 1].pos.x;
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if (a < offset && b < offset) {
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imin = m;
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} else if (a > offset) {
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imax = m;
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} else {
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return m;
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}
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}
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// Will happen if the offset is out of bounds
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if (offset > _points[imax].pos.x)
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return imax;
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return imin;
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}
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void Curve::clean_dupes() {
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bool dirty = false;
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for (int i = 1; i < _points.size(); ++i) {
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real_t diff = _points[i - 1].pos.x - _points[i].pos.x;
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if (diff <= CMP_EPSILON) {
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_points.remove(i);
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--i;
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dirty = true;
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}
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}
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if (dirty)
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mark_dirty();
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}
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void Curve::set_point_left_tangent(int i, real_t tangent) {
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ERR_FAIL_INDEX(i, _points.size());
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_points.write[i].left_tangent = tangent;
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_points.write[i].left_mode = TANGENT_FREE;
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mark_dirty();
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}
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void Curve::set_point_right_tangent(int i, real_t tangent) {
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ERR_FAIL_INDEX(i, _points.size());
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_points.write[i].right_tangent = tangent;
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_points.write[i].right_mode = TANGENT_FREE;
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mark_dirty();
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}
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void Curve::set_point_left_mode(int i, TangentMode p_mode) {
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ERR_FAIL_INDEX(i, _points.size());
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_points.write[i].left_mode = p_mode;
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if (i > 0) {
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if (p_mode == TANGENT_LINEAR) {
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Vector2 v = (_points[i - 1].pos - _points[i].pos).normalized();
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_points.write[i].left_tangent = v.y / v.x;
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}
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}
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mark_dirty();
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}
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void Curve::set_point_right_mode(int i, TangentMode p_mode) {
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ERR_FAIL_INDEX(i, _points.size());
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_points.write[i].right_mode = p_mode;
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if (i + 1 < _points.size()) {
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if (p_mode == TANGENT_LINEAR) {
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Vector2 v = (_points[i + 1].pos - _points[i].pos).normalized();
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_points.write[i].right_tangent = v.y / v.x;
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}
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}
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mark_dirty();
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}
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real_t Curve::get_point_left_tangent(int i) const {
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ERR_FAIL_INDEX_V(i, _points.size(), 0);
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return _points[i].left_tangent;
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}
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real_t Curve::get_point_right_tangent(int i) const {
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ERR_FAIL_INDEX_V(i, _points.size(), 0);
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return _points[i].right_tangent;
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}
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Curve::TangentMode Curve::get_point_left_mode(int i) const {
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ERR_FAIL_INDEX_V(i, _points.size(), TANGENT_FREE);
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return _points[i].left_mode;
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}
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Curve::TangentMode Curve::get_point_right_mode(int i) const {
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ERR_FAIL_INDEX_V(i, _points.size(), TANGENT_FREE);
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return _points[i].right_mode;
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}
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void Curve::remove_point(int p_index) {
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ERR_FAIL_INDEX(p_index, _points.size());
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_points.remove(p_index);
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mark_dirty();
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}
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void Curve::clear_points() {
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_points.clear();
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mark_dirty();
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}
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void Curve::set_point_value(int p_index, real_t pos) {
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ERR_FAIL_INDEX(p_index, _points.size());
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_points.write[p_index].pos.y = pos;
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update_auto_tangents(p_index);
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mark_dirty();
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}
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int Curve::set_point_offset(int p_index, float offset) {
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ERR_FAIL_INDEX_V(p_index, _points.size(), -1);
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Point p = _points[p_index];
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remove_point(p_index);
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int i = add_point(Vector2(offset, p.pos.y));
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_points.write[i].left_tangent = p.left_tangent;
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_points.write[i].right_tangent = p.right_tangent;
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_points.write[i].left_mode = p.left_mode;
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_points.write[i].right_mode = p.right_mode;
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if (p_index != i)
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update_auto_tangents(p_index);
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update_auto_tangents(i);
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return i;
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}
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Vector2 Curve::get_point_position(int p_index) const {
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ERR_FAIL_INDEX_V(p_index, _points.size(), Vector2(0, 0));
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return _points[p_index].pos;
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}
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Curve::Point Curve::get_point(int p_index) const {
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ERR_FAIL_INDEX_V(p_index, _points.size(), Point());
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return _points[p_index];
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}
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void Curve::update_auto_tangents(int i) {
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Point &p = _points.write[i];
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if (i > 0) {
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if (p.left_mode == TANGENT_LINEAR) {
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Vector2 v = (_points[i - 1].pos - p.pos).normalized();
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p.left_tangent = v.y / v.x;
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}
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if (_points[i - 1].right_mode == TANGENT_LINEAR) {
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Vector2 v = (_points[i - 1].pos - p.pos).normalized();
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_points.write[i - 1].right_tangent = v.y / v.x;
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}
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}
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if (i + 1 < _points.size()) {
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if (p.right_mode == TANGENT_LINEAR) {
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Vector2 v = (_points[i + 1].pos - p.pos).normalized();
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p.right_tangent = v.y / v.x;
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}
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if (_points[i + 1].left_mode == TANGENT_LINEAR) {
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Vector2 v = (_points[i + 1].pos - p.pos).normalized();
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_points.write[i + 1].left_tangent = v.y / v.x;
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}
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}
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}
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#define MIN_Y_RANGE 0.01
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void Curve::set_min_value(float p_min) {
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if (_minmax_set_once & 0b11 && p_min > _max_value - MIN_Y_RANGE) {
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_min_value = _max_value - MIN_Y_RANGE;
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} else {
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_minmax_set_once |= 0b10; // first bit is "min set"
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_min_value = p_min;
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}
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// Note: min and max are indicative values,
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// it's still possible that existing points are out of range at this point.
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emit_signal(SIGNAL_RANGE_CHANGED);
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}
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void Curve::set_max_value(float p_max) {
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if (_minmax_set_once & 0b11 && p_max < _min_value + MIN_Y_RANGE) {
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_max_value = _min_value + MIN_Y_RANGE;
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} else {
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_minmax_set_once |= 0b01; // second bit is "max set"
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_max_value = p_max;
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}
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emit_signal(SIGNAL_RANGE_CHANGED);
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}
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real_t Curve::interpolate(real_t offset) const {
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if (_points.size() == 0)
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return 0;
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if (_points.size() == 1)
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return _points[0].pos.y;
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int i = get_index(offset);
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if (i == _points.size() - 1)
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return _points[i].pos.y;
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real_t local = offset - _points[i].pos.x;
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if (i == 0 && local <= 0)
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return _points[0].pos.y;
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return interpolate_local_nocheck(i, local);
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}
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real_t Curve::interpolate_local_nocheck(int index, real_t local_offset) const {
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const Point a = _points[index];
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const Point b = _points[index + 1];
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/* Cubic bezier
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*
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* ac-----bc
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* / \
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* / \ Here with a.right_tangent > 0
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* / \ and b.left_tangent < 0
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* / \
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* a b
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*
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* |-d1--|-d2--|-d3--|
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*
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* d1 == d2 == d3 == d / 3
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*/
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// Control points are chosen at equal distances
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real_t d = b.pos.x - a.pos.x;
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if (Math::abs(d) <= CMP_EPSILON)
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return b.pos.y;
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local_offset /= d;
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d /= 3.0;
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real_t yac = a.pos.y + d * a.right_tangent;
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real_t ybc = b.pos.y - d * b.left_tangent;
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real_t y = _bezier_interp(local_offset, a.pos.y, yac, ybc, b.pos.y);
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return y;
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}
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void Curve::mark_dirty() {
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_baked_cache_dirty = true;
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emit_signal(CoreStringNames::get_singleton()->changed);
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}
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Array Curve::get_data() const {
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Array output;
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const unsigned int ELEMS = 5;
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output.resize(_points.size() * ELEMS);
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for (int j = 0; j < _points.size(); ++j) {
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const Point p = _points[j];
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int i = j * ELEMS;
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output[i] = p.pos;
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output[i + 1] = p.left_tangent;
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output[i + 2] = p.right_tangent;
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output[i + 3] = p.left_mode;
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output[i + 4] = p.right_mode;
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}
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return output;
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}
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void Curve::set_data(Array input) {
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const unsigned int ELEMS = 5;
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ERR_FAIL_COND(input.size() % ELEMS != 0);
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_points.clear();
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// Validate input
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for (int i = 0; i < input.size(); i += ELEMS) {
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ERR_FAIL_COND(input[i].get_type() != Variant::VECTOR2);
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ERR_FAIL_COND(!input[i + 1].is_num());
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ERR_FAIL_COND(input[i + 2].get_type() != Variant::FLOAT);
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ERR_FAIL_COND(input[i + 3].get_type() != Variant::INT);
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int left_mode = input[i + 3];
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ERR_FAIL_COND(left_mode < 0 || left_mode >= TANGENT_MODE_COUNT);
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ERR_FAIL_COND(input[i + 4].get_type() != Variant::INT);
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int right_mode = input[i + 4];
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ERR_FAIL_COND(right_mode < 0 || right_mode >= TANGENT_MODE_COUNT);
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}
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_points.resize(input.size() / ELEMS);
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for (int j = 0; j < _points.size(); ++j) {
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Point &p = _points.write[j];
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int i = j * ELEMS;
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p.pos = input[i];
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p.left_tangent = input[i + 1];
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p.right_tangent = input[i + 2];
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// TODO For some reason the compiler won't convert from Variant to enum
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int left_mode = input[i + 3];
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int right_mode = input[i + 4];
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p.left_mode = (TangentMode)left_mode;
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p.right_mode = (TangentMode)right_mode;
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}
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mark_dirty();
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}
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void Curve::bake() {
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_baked_cache.clear();
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_baked_cache.resize(_bake_resolution);
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for (int i = 1; i < _bake_resolution - 1; ++i) {
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real_t x = i / static_cast<real_t>(_bake_resolution);
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real_t y = interpolate(x);
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_baked_cache.write[i] = y;
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}
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if (_points.size() != 0) {
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_baked_cache.write[0] = _points[0].pos.y;
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_baked_cache.write[_baked_cache.size() - 1] = _points[_points.size() - 1].pos.y;
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}
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_baked_cache_dirty = false;
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}
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void Curve::set_bake_resolution(int p_resolution) {
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ERR_FAIL_COND(p_resolution < 1);
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ERR_FAIL_COND(p_resolution > 1000);
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_bake_resolution = p_resolution;
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_baked_cache_dirty = true;
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}
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real_t Curve::interpolate_baked(real_t offset) {
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if (_baked_cache_dirty) {
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// Last-second bake if not done already
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bake();
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}
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// Special cases if the cache is too small
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if (_baked_cache.size() == 0) {
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if (_points.size() == 0)
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return 0;
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return _points[0].pos.y;
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} else if (_baked_cache.size() == 1) {
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return _baked_cache[0];
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}
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// Get interpolation index
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real_t fi = offset * _baked_cache.size();
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int i = Math::floor(fi);
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if (i < 0) {
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i = 0;
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fi = 0;
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} else if (i >= _baked_cache.size()) {
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i = _baked_cache.size() - 1;
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fi = 0;
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}
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// Interpolate
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if (i + 1 < _baked_cache.size()) {
|
|
real_t t = fi - i;
|
|
return Math::lerp(_baked_cache[i], _baked_cache[i + 1], t);
|
|
} else {
|
|
return _baked_cache[_baked_cache.size() - 1];
|
|
}
|
|
}
|
|
|
|
void Curve::ensure_default_setup(float p_min, float p_max) {
|
|
if (_points.size() == 0 && _min_value == 0 && _max_value == 1) {
|
|
|
|
add_point(Vector2(0, 1));
|
|
add_point(Vector2(1, 1));
|
|
set_min_value(p_min);
|
|
set_max_value(p_max);
|
|
}
|
|
}
|
|
|
|
void Curve::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("get_point_count"), &Curve::get_point_count);
|
|
ClassDB::bind_method(D_METHOD("add_point", "position", "left_tangent", "right_tangent", "left_mode", "right_mode"), &Curve::add_point, DEFVAL(0), DEFVAL(0), DEFVAL(TANGENT_FREE), DEFVAL(TANGENT_FREE));
|
|
ClassDB::bind_method(D_METHOD("remove_point", "index"), &Curve::remove_point);
|
|
ClassDB::bind_method(D_METHOD("clear_points"), &Curve::clear_points);
|
|
ClassDB::bind_method(D_METHOD("get_point_position", "index"), &Curve::get_point_position);
|
|
ClassDB::bind_method(D_METHOD("set_point_value", "index", "y"), &Curve::set_point_value);
|
|
ClassDB::bind_method(D_METHOD("set_point_offset", "index", "offset"), &Curve::set_point_offset);
|
|
ClassDB::bind_method(D_METHOD("interpolate", "offset"), &Curve::interpolate);
|
|
ClassDB::bind_method(D_METHOD("interpolate_baked", "offset"), &Curve::interpolate_baked);
|
|
ClassDB::bind_method(D_METHOD("get_point_left_tangent", "index"), &Curve::get_point_left_tangent);
|
|
ClassDB::bind_method(D_METHOD("get_point_right_tangent", "index"), &Curve::get_point_right_tangent);
|
|
ClassDB::bind_method(D_METHOD("get_point_left_mode", "index"), &Curve::get_point_left_mode);
|
|
ClassDB::bind_method(D_METHOD("get_point_right_mode", "index"), &Curve::get_point_right_mode);
|
|
ClassDB::bind_method(D_METHOD("set_point_left_tangent", "index", "tangent"), &Curve::set_point_left_tangent);
|
|
ClassDB::bind_method(D_METHOD("set_point_right_tangent", "index", "tangent"), &Curve::set_point_right_tangent);
|
|
ClassDB::bind_method(D_METHOD("set_point_left_mode", "index", "mode"), &Curve::set_point_left_mode);
|
|
ClassDB::bind_method(D_METHOD("set_point_right_mode", "index", "mode"), &Curve::set_point_right_mode);
|
|
ClassDB::bind_method(D_METHOD("get_min_value"), &Curve::get_min_value);
|
|
ClassDB::bind_method(D_METHOD("set_min_value", "min"), &Curve::set_min_value);
|
|
ClassDB::bind_method(D_METHOD("get_max_value"), &Curve::get_max_value);
|
|
ClassDB::bind_method(D_METHOD("set_max_value", "max"), &Curve::set_max_value);
|
|
ClassDB::bind_method(D_METHOD("clean_dupes"), &Curve::clean_dupes);
|
|
ClassDB::bind_method(D_METHOD("bake"), &Curve::bake);
|
|
ClassDB::bind_method(D_METHOD("get_bake_resolution"), &Curve::get_bake_resolution);
|
|
ClassDB::bind_method(D_METHOD("set_bake_resolution", "resolution"), &Curve::set_bake_resolution);
|
|
ClassDB::bind_method(D_METHOD("_get_data"), &Curve::get_data);
|
|
ClassDB::bind_method(D_METHOD("_set_data", "data"), &Curve::set_data);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "min_value", PROPERTY_HINT_RANGE, "-1024,1024,0.01"), "set_min_value", "get_min_value");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "max_value", PROPERTY_HINT_RANGE, "-1024,1024,0.01"), "set_max_value", "get_max_value");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "bake_resolution", PROPERTY_HINT_RANGE, "1,1000,1"), "set_bake_resolution", "get_bake_resolution");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
|
|
|
|
ADD_SIGNAL(MethodInfo(SIGNAL_RANGE_CHANGED));
|
|
|
|
BIND_ENUM_CONSTANT(TANGENT_FREE);
|
|
BIND_ENUM_CONSTANT(TANGENT_LINEAR);
|
|
BIND_ENUM_CONSTANT(TANGENT_MODE_COUNT);
|
|
}
|
|
|
|
int Curve2D::get_point_count() const {
|
|
|
|
return points.size();
|
|
}
|
|
void Curve2D::add_point(const Vector2 &p_pos, const Vector2 &p_in, const Vector2 &p_out, int p_atpos) {
|
|
|
|
Point n;
|
|
n.pos = p_pos;
|
|
n.in = p_in;
|
|
n.out = p_out;
|
|
if (p_atpos >= 0 && p_atpos < points.size())
|
|
points.insert(p_atpos, n);
|
|
else
|
|
points.push_back(n);
|
|
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
void Curve2D::set_point_position(int p_index, const Vector2 &p_pos) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
|
|
points.write[p_index].pos = p_pos;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
Vector2 Curve2D::get_point_position(int p_index) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_index, points.size(), Vector2());
|
|
return points[p_index].pos;
|
|
}
|
|
|
|
void Curve2D::set_point_in(int p_index, const Vector2 &p_in) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
|
|
points.write[p_index].in = p_in;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
Vector2 Curve2D::get_point_in(int p_index) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_index, points.size(), Vector2());
|
|
return points[p_index].in;
|
|
}
|
|
|
|
void Curve2D::set_point_out(int p_index, const Vector2 &p_out) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
|
|
points.write[p_index].out = p_out;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
Vector2 Curve2D::get_point_out(int p_index) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_index, points.size(), Vector2());
|
|
return points[p_index].out;
|
|
}
|
|
|
|
void Curve2D::remove_point(int p_index) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
points.remove(p_index);
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
void Curve2D::clear_points() {
|
|
if (!points.empty()) {
|
|
points.clear();
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
}
|
|
|
|
Vector2 Curve2D::interpolate(int p_index, float p_offset) const {
|
|
|
|
int pc = points.size();
|
|
ERR_FAIL_COND_V(pc == 0, Vector2());
|
|
|
|
if (p_index >= pc - 1)
|
|
return points[pc - 1].pos;
|
|
else if (p_index < 0)
|
|
return points[0].pos;
|
|
|
|
Vector2 p0 = points[p_index].pos;
|
|
Vector2 p1 = p0 + points[p_index].out;
|
|
Vector2 p3 = points[p_index + 1].pos;
|
|
Vector2 p2 = p3 + points[p_index + 1].in;
|
|
|
|
return _bezier_interp(p_offset, p0, p1, p2, p3);
|
|
}
|
|
|
|
Vector2 Curve2D::interpolatef(real_t p_findex) const {
|
|
|
|
if (p_findex < 0)
|
|
p_findex = 0;
|
|
else if (p_findex >= points.size())
|
|
p_findex = points.size();
|
|
|
|
return interpolate((int)p_findex, Math::fmod(p_findex, (real_t)1.0));
|
|
}
|
|
|
|
void Curve2D::_bake_segment2d(Map<float, Vector2> &r_bake, float p_begin, float p_end, const Vector2 &p_a, const Vector2 &p_out, const Vector2 &p_b, const Vector2 &p_in, int p_depth, int p_max_depth, float p_tol) const {
|
|
|
|
float mp = p_begin + (p_end - p_begin) * 0.5;
|
|
Vector2 beg = _bezier_interp(p_begin, p_a, p_a + p_out, p_b + p_in, p_b);
|
|
Vector2 mid = _bezier_interp(mp, p_a, p_a + p_out, p_b + p_in, p_b);
|
|
Vector2 end = _bezier_interp(p_end, p_a, p_a + p_out, p_b + p_in, p_b);
|
|
|
|
Vector2 na = (mid - beg).normalized();
|
|
Vector2 nb = (end - mid).normalized();
|
|
float dp = na.dot(nb);
|
|
|
|
if (dp < Math::cos(Math::deg2rad(p_tol))) {
|
|
|
|
r_bake[mp] = mid;
|
|
}
|
|
|
|
if (p_depth < p_max_depth) {
|
|
_bake_segment2d(r_bake, p_begin, mp, p_a, p_out, p_b, p_in, p_depth + 1, p_max_depth, p_tol);
|
|
_bake_segment2d(r_bake, mp, p_end, p_a, p_out, p_b, p_in, p_depth + 1, p_max_depth, p_tol);
|
|
}
|
|
}
|
|
|
|
void Curve2D::_bake() const {
|
|
|
|
if (!baked_cache_dirty)
|
|
return;
|
|
|
|
baked_max_ofs = 0;
|
|
baked_cache_dirty = false;
|
|
|
|
if (points.size() == 0) {
|
|
baked_point_cache.resize(0);
|
|
return;
|
|
}
|
|
|
|
if (points.size() == 1) {
|
|
|
|
baked_point_cache.resize(1);
|
|
baked_point_cache.set(0, points[0].pos);
|
|
return;
|
|
}
|
|
|
|
Vector2 pos = points[0].pos;
|
|
List<Vector2> pointlist;
|
|
|
|
pointlist.push_back(pos); //start always from origin
|
|
|
|
for (int i = 0; i < points.size() - 1; i++) {
|
|
|
|
float step = 0.1; // at least 10 substeps ought to be enough?
|
|
float p = 0;
|
|
|
|
while (p < 1.0) {
|
|
|
|
float np = p + step;
|
|
if (np > 1.0)
|
|
np = 1.0;
|
|
|
|
Vector2 npp = _bezier_interp(np, points[i].pos, points[i].pos + points[i].out, points[i + 1].pos + points[i + 1].in, points[i + 1].pos);
|
|
float d = pos.distance_to(npp);
|
|
|
|
if (d > bake_interval) {
|
|
// OK! between P and NP there _has_ to be Something, let's go searching!
|
|
|
|
int iterations = 10; //lots of detail!
|
|
|
|
float low = p;
|
|
float hi = np;
|
|
float mid = low + (hi - low) * 0.5;
|
|
|
|
for (int j = 0; j < iterations; j++) {
|
|
|
|
npp = _bezier_interp(mid, points[i].pos, points[i].pos + points[i].out, points[i + 1].pos + points[i + 1].in, points[i + 1].pos);
|
|
d = pos.distance_to(npp);
|
|
|
|
if (bake_interval < d)
|
|
hi = mid;
|
|
else
|
|
low = mid;
|
|
mid = low + (hi - low) * 0.5;
|
|
}
|
|
|
|
pos = npp;
|
|
p = mid;
|
|
pointlist.push_back(pos);
|
|
} else {
|
|
|
|
p = np;
|
|
}
|
|
}
|
|
}
|
|
|
|
Vector2 lastpos = points[points.size() - 1].pos;
|
|
|
|
float rem = pos.distance_to(lastpos);
|
|
baked_max_ofs = (pointlist.size() - 1) * bake_interval + rem;
|
|
pointlist.push_back(lastpos);
|
|
|
|
baked_point_cache.resize(pointlist.size());
|
|
Vector2 *w = baked_point_cache.ptrw();
|
|
int idx = 0;
|
|
|
|
for (List<Vector2>::Element *E = pointlist.front(); E; E = E->next()) {
|
|
|
|
w[idx] = E->get();
|
|
idx++;
|
|
}
|
|
}
|
|
|
|
float Curve2D::get_baked_length() const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
return baked_max_ofs;
|
|
}
|
|
Vector2 Curve2D::interpolate_baked(float p_offset, bool p_cubic) const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//validate//
|
|
int pc = baked_point_cache.size();
|
|
ERR_FAIL_COND_V_MSG(pc == 0, Vector2(), "No points in Curve2D.");
|
|
|
|
if (pc == 1)
|
|
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];
|
|
|
|
int idx = Math::floor((double)p_offset / (double)bake_interval);
|
|
float frac = Math::fmod(p_offset, (float)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);
|
|
} else {
|
|
frac /= bake_interval;
|
|
}
|
|
|
|
if (p_cubic) {
|
|
|
|
Vector2 pre = idx > 0 ? r[idx - 1] : r[idx];
|
|
Vector2 post = (idx < (bpc - 2)) ? r[idx + 2] : r[idx + 1];
|
|
return r[idx].cubic_interpolate(r[idx + 1], pre, post, frac);
|
|
} else {
|
|
return r[idx].linear_interpolate(r[idx + 1], frac);
|
|
}
|
|
}
|
|
|
|
PackedVector2Array Curve2D::get_baked_points() const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
return baked_point_cache;
|
|
}
|
|
|
|
void Curve2D::set_bake_interval(float p_tolerance) {
|
|
|
|
bake_interval = p_tolerance;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
float Curve2D::get_bake_interval() const {
|
|
|
|
return bake_interval;
|
|
}
|
|
|
|
Vector2 Curve2D::get_closest_point(const Vector2 &p_to_point) const {
|
|
// Brute force method
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//validate//
|
|
int pc = baked_point_cache.size();
|
|
ERR_FAIL_COND_V_MSG(pc == 0, Vector2(), "No points in Curve2D.");
|
|
|
|
if (pc == 1)
|
|
return baked_point_cache.get(0);
|
|
|
|
const Vector2 *r = baked_point_cache.ptr();
|
|
|
|
Vector2 nearest;
|
|
float nearest_dist = -1.0f;
|
|
|
|
for (int i = 0; i < pc - 1; i++) {
|
|
Vector2 origin = r[i];
|
|
Vector2 direction = (r[i + 1] - origin) / bake_interval;
|
|
|
|
float d = CLAMP((p_to_point - origin).dot(direction), 0.0f, bake_interval);
|
|
Vector2 proj = origin + direction * d;
|
|
|
|
float dist = proj.distance_squared_to(p_to_point);
|
|
|
|
if (nearest_dist < 0.0f || dist < nearest_dist) {
|
|
nearest = proj;
|
|
nearest_dist = dist;
|
|
}
|
|
}
|
|
|
|
return nearest;
|
|
}
|
|
|
|
float Curve2D::get_closest_offset(const Vector2 &p_to_point) const {
|
|
// Brute force method
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//validate//
|
|
int pc = baked_point_cache.size();
|
|
ERR_FAIL_COND_V_MSG(pc == 0, 0.0f, "No points in Curve2D.");
|
|
|
|
if (pc == 1)
|
|
return 0.0f;
|
|
|
|
const Vector2 *r = baked_point_cache.ptr();
|
|
|
|
float nearest = 0.0f;
|
|
float nearest_dist = -1.0f;
|
|
float offset = 0.0f;
|
|
|
|
for (int i = 0; i < pc - 1; i++) {
|
|
Vector2 origin = r[i];
|
|
Vector2 direction = (r[i + 1] - origin) / bake_interval;
|
|
|
|
float d = CLAMP((p_to_point - origin).dot(direction), 0.0f, bake_interval);
|
|
Vector2 proj = origin + direction * d;
|
|
|
|
float dist = proj.distance_squared_to(p_to_point);
|
|
|
|
if (nearest_dist < 0.0f || dist < nearest_dist) {
|
|
nearest = offset + d;
|
|
nearest_dist = dist;
|
|
}
|
|
|
|
offset += bake_interval;
|
|
}
|
|
|
|
return nearest;
|
|
}
|
|
|
|
Dictionary Curve2D::_get_data() const {
|
|
|
|
Dictionary dc;
|
|
|
|
PackedVector2Array d;
|
|
d.resize(points.size() * 3);
|
|
Vector2 *w = d.ptrw();
|
|
|
|
for (int i = 0; i < points.size(); i++) {
|
|
|
|
w[i * 3 + 0] = points[i].in;
|
|
w[i * 3 + 1] = points[i].out;
|
|
w[i * 3 + 2] = points[i].pos;
|
|
}
|
|
|
|
dc["points"] = d;
|
|
|
|
return dc;
|
|
}
|
|
void Curve2D::_set_data(const Dictionary &p_data) {
|
|
|
|
ERR_FAIL_COND(!p_data.has("points"));
|
|
|
|
PackedVector2Array rp = p_data["points"];
|
|
int pc = rp.size();
|
|
ERR_FAIL_COND(pc % 3 != 0);
|
|
points.resize(pc / 3);
|
|
const Vector2 *r = rp.ptr();
|
|
|
|
for (int i = 0; i < points.size(); i++) {
|
|
|
|
points.write[i].in = r[i * 3 + 0];
|
|
points.write[i].out = r[i * 3 + 1];
|
|
points.write[i].pos = r[i * 3 + 2];
|
|
}
|
|
|
|
baked_cache_dirty = true;
|
|
}
|
|
|
|
PackedVector2Array Curve2D::tessellate(int p_max_stages, float p_tolerance) const {
|
|
|
|
PackedVector2Array tess;
|
|
|
|
if (points.size() == 0) {
|
|
return tess;
|
|
}
|
|
Vector<Map<float, Vector2> > midpoints;
|
|
|
|
midpoints.resize(points.size() - 1);
|
|
|
|
int pc = 1;
|
|
for (int i = 0; i < points.size() - 1; i++) {
|
|
|
|
_bake_segment2d(midpoints.write[i], 0, 1, points[i].pos, points[i].out, points[i + 1].pos, points[i + 1].in, 0, p_max_stages, p_tolerance);
|
|
pc++;
|
|
pc += midpoints[i].size();
|
|
}
|
|
|
|
tess.resize(pc);
|
|
Vector2 *bpw = tess.ptrw();
|
|
bpw[0] = points[0].pos;
|
|
int pidx = 0;
|
|
|
|
for (int i = 0; i < points.size() - 1; i++) {
|
|
|
|
for (Map<float, Vector2>::Element *E = midpoints[i].front(); E; E = E->next()) {
|
|
|
|
pidx++;
|
|
bpw[pidx] = E->get();
|
|
}
|
|
|
|
pidx++;
|
|
bpw[pidx] = points[i + 1].pos;
|
|
}
|
|
|
|
return tess;
|
|
}
|
|
|
|
void Curve2D::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("get_point_count"), &Curve2D::get_point_count);
|
|
ClassDB::bind_method(D_METHOD("add_point", "position", "in", "out", "at_position"), &Curve2D::add_point, DEFVAL(Vector2()), DEFVAL(Vector2()), DEFVAL(-1));
|
|
ClassDB::bind_method(D_METHOD("set_point_position", "idx", "position"), &Curve2D::set_point_position);
|
|
ClassDB::bind_method(D_METHOD("get_point_position", "idx"), &Curve2D::get_point_position);
|
|
ClassDB::bind_method(D_METHOD("set_point_in", "idx", "position"), &Curve2D::set_point_in);
|
|
ClassDB::bind_method(D_METHOD("get_point_in", "idx"), &Curve2D::get_point_in);
|
|
ClassDB::bind_method(D_METHOD("set_point_out", "idx", "position"), &Curve2D::set_point_out);
|
|
ClassDB::bind_method(D_METHOD("get_point_out", "idx"), &Curve2D::get_point_out);
|
|
ClassDB::bind_method(D_METHOD("remove_point", "idx"), &Curve2D::remove_point);
|
|
ClassDB::bind_method(D_METHOD("clear_points"), &Curve2D::clear_points);
|
|
ClassDB::bind_method(D_METHOD("interpolate", "idx", "t"), &Curve2D::interpolate);
|
|
ClassDB::bind_method(D_METHOD("interpolatef", "fofs"), &Curve2D::interpolatef);
|
|
//ClassDB::bind_method(D_METHOD("bake","subdivs"),&Curve2D::bake,DEFVAL(10));
|
|
ClassDB::bind_method(D_METHOD("set_bake_interval", "distance"), &Curve2D::set_bake_interval);
|
|
ClassDB::bind_method(D_METHOD("get_bake_interval"), &Curve2D::get_bake_interval);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_baked_length"), &Curve2D::get_baked_length);
|
|
ClassDB::bind_method(D_METHOD("interpolate_baked", "offset", "cubic"), &Curve2D::interpolate_baked, DEFVAL(false));
|
|
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);
|
|
ClassDB::bind_method(D_METHOD("tessellate", "max_stages", "tolerance_degrees"), &Curve2D::tessellate, DEFVAL(5), DEFVAL(4));
|
|
|
|
ClassDB::bind_method(D_METHOD("_get_data"), &Curve2D::_get_data);
|
|
ClassDB::bind_method(D_METHOD("_set_data"), &Curve2D::_set_data);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "bake_interval", PROPERTY_HINT_RANGE, "0.01,512,0.01"), "set_bake_interval", "get_bake_interval");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
|
|
}
|
|
|
|
Curve2D::Curve2D() {
|
|
baked_cache_dirty = false;
|
|
baked_max_ofs = 0;
|
|
/* add_point(Vector2(-1,0,0));
|
|
add_point(Vector2(0,2,0));
|
|
add_point(Vector2(0,3,5));*/
|
|
bake_interval = 5;
|
|
}
|
|
|
|
/***********************************************************************************/
|
|
/***********************************************************************************/
|
|
/***********************************************************************************/
|
|
/***********************************************************************************/
|
|
/***********************************************************************************/
|
|
/***********************************************************************************/
|
|
|
|
int Curve3D::get_point_count() const {
|
|
|
|
return points.size();
|
|
}
|
|
void Curve3D::add_point(const Vector3 &p_pos, const Vector3 &p_in, const Vector3 &p_out, int p_atpos) {
|
|
|
|
Point n;
|
|
n.pos = p_pos;
|
|
n.in = p_in;
|
|
n.out = p_out;
|
|
if (p_atpos >= 0 && p_atpos < points.size())
|
|
points.insert(p_atpos, n);
|
|
else
|
|
points.push_back(n);
|
|
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
void Curve3D::set_point_position(int p_index, const Vector3 &p_pos) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
|
|
points.write[p_index].pos = p_pos;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
Vector3 Curve3D::get_point_position(int p_index) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_index, points.size(), Vector3());
|
|
return points[p_index].pos;
|
|
}
|
|
|
|
void Curve3D::set_point_tilt(int p_index, float p_tilt) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
|
|
points.write[p_index].tilt = p_tilt;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
float Curve3D::get_point_tilt(int p_index) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_index, points.size(), 0);
|
|
return points[p_index].tilt;
|
|
}
|
|
|
|
void Curve3D::set_point_in(int p_index, const Vector3 &p_in) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
|
|
points.write[p_index].in = p_in;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
Vector3 Curve3D::get_point_in(int p_index) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_index, points.size(), Vector3());
|
|
return points[p_index].in;
|
|
}
|
|
|
|
void Curve3D::set_point_out(int p_index, const Vector3 &p_out) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
|
|
points.write[p_index].out = p_out;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
Vector3 Curve3D::get_point_out(int p_index) const {
|
|
|
|
ERR_FAIL_INDEX_V(p_index, points.size(), Vector3());
|
|
return points[p_index].out;
|
|
}
|
|
|
|
void Curve3D::remove_point(int p_index) {
|
|
|
|
ERR_FAIL_INDEX(p_index, points.size());
|
|
points.remove(p_index);
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
void Curve3D::clear_points() {
|
|
|
|
if (!points.empty()) {
|
|
points.clear();
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
}
|
|
|
|
Vector3 Curve3D::interpolate(int p_index, float p_offset) const {
|
|
|
|
int pc = points.size();
|
|
ERR_FAIL_COND_V(pc == 0, Vector3());
|
|
|
|
if (p_index >= pc - 1)
|
|
return points[pc - 1].pos;
|
|
else if (p_index < 0)
|
|
return points[0].pos;
|
|
|
|
Vector3 p0 = points[p_index].pos;
|
|
Vector3 p1 = p0 + points[p_index].out;
|
|
Vector3 p3 = points[p_index + 1].pos;
|
|
Vector3 p2 = p3 + points[p_index + 1].in;
|
|
|
|
return _bezier_interp(p_offset, p0, p1, p2, p3);
|
|
}
|
|
|
|
Vector3 Curve3D::interpolatef(real_t p_findex) const {
|
|
|
|
if (p_findex < 0)
|
|
p_findex = 0;
|
|
else if (p_findex >= points.size())
|
|
p_findex = points.size();
|
|
|
|
return interpolate((int)p_findex, Math::fmod(p_findex, (real_t)1.0));
|
|
}
|
|
|
|
void Curve3D::_bake_segment3d(Map<float, Vector3> &r_bake, float p_begin, float p_end, const Vector3 &p_a, const Vector3 &p_out, const Vector3 &p_b, const Vector3 &p_in, int p_depth, int p_max_depth, float p_tol) const {
|
|
|
|
float mp = p_begin + (p_end - p_begin) * 0.5;
|
|
Vector3 beg = _bezier_interp(p_begin, p_a, p_a + p_out, p_b + p_in, p_b);
|
|
Vector3 mid = _bezier_interp(mp, p_a, p_a + p_out, p_b + p_in, p_b);
|
|
Vector3 end = _bezier_interp(p_end, p_a, p_a + p_out, p_b + p_in, p_b);
|
|
|
|
Vector3 na = (mid - beg).normalized();
|
|
Vector3 nb = (end - mid).normalized();
|
|
float dp = na.dot(nb);
|
|
|
|
if (dp < Math::cos(Math::deg2rad(p_tol))) {
|
|
|
|
r_bake[mp] = mid;
|
|
}
|
|
if (p_depth < p_max_depth) {
|
|
_bake_segment3d(r_bake, p_begin, mp, p_a, p_out, p_b, p_in, p_depth + 1, p_max_depth, p_tol);
|
|
_bake_segment3d(r_bake, mp, p_end, p_a, p_out, p_b, p_in, p_depth + 1, p_max_depth, p_tol);
|
|
}
|
|
}
|
|
|
|
void Curve3D::_bake() const {
|
|
|
|
if (!baked_cache_dirty)
|
|
return;
|
|
|
|
baked_max_ofs = 0;
|
|
baked_cache_dirty = false;
|
|
|
|
if (points.size() == 0) {
|
|
baked_point_cache.resize(0);
|
|
baked_tilt_cache.resize(0);
|
|
baked_up_vector_cache.resize(0);
|
|
return;
|
|
}
|
|
|
|
if (points.size() == 1) {
|
|
|
|
baked_point_cache.resize(1);
|
|
baked_point_cache.set(0, points[0].pos);
|
|
baked_tilt_cache.resize(1);
|
|
baked_tilt_cache.set(0, points[0].tilt);
|
|
|
|
if (up_vector_enabled) {
|
|
|
|
baked_up_vector_cache.resize(1);
|
|
baked_up_vector_cache.set(0, Vector3(0, 1, 0));
|
|
} else
|
|
baked_up_vector_cache.resize(0);
|
|
|
|
return;
|
|
}
|
|
|
|
Vector3 pos = points[0].pos;
|
|
List<Plane> pointlist;
|
|
pointlist.push_back(Plane(pos, points[0].tilt));
|
|
|
|
for (int i = 0; i < points.size() - 1; i++) {
|
|
|
|
float step = 0.1; // at least 10 substeps ought to be enough?
|
|
float p = 0;
|
|
|
|
while (p < 1.0) {
|
|
|
|
float np = p + step;
|
|
if (np > 1.0)
|
|
np = 1.0;
|
|
|
|
Vector3 npp = _bezier_interp(np, points[i].pos, points[i].pos + points[i].out, points[i + 1].pos + points[i + 1].in, points[i + 1].pos);
|
|
float d = pos.distance_to(npp);
|
|
|
|
if (d > bake_interval) {
|
|
// OK! between P and NP there _has_ to be Something, let's go searching!
|
|
|
|
int iterations = 10; //lots of detail!
|
|
|
|
float low = p;
|
|
float hi = np;
|
|
float mid = low + (hi - low) * 0.5;
|
|
|
|
for (int j = 0; j < iterations; j++) {
|
|
|
|
npp = _bezier_interp(mid, points[i].pos, points[i].pos + points[i].out, points[i + 1].pos + points[i + 1].in, points[i + 1].pos);
|
|
d = pos.distance_to(npp);
|
|
|
|
if (bake_interval < d)
|
|
hi = mid;
|
|
else
|
|
low = mid;
|
|
mid = low + (hi - low) * 0.5;
|
|
}
|
|
|
|
pos = npp;
|
|
p = mid;
|
|
Plane post;
|
|
post.normal = pos;
|
|
post.d = Math::lerp(points[i].tilt, points[i + 1].tilt, mid);
|
|
pointlist.push_back(post);
|
|
} else {
|
|
|
|
p = np;
|
|
}
|
|
}
|
|
}
|
|
|
|
Vector3 lastpos = points[points.size() - 1].pos;
|
|
float lastilt = points[points.size() - 1].tilt;
|
|
|
|
float rem = pos.distance_to(lastpos);
|
|
baked_max_ofs = (pointlist.size() - 1) * bake_interval + rem;
|
|
pointlist.push_back(Plane(lastpos, lastilt));
|
|
|
|
baked_point_cache.resize(pointlist.size());
|
|
Vector3 *w = baked_point_cache.ptrw();
|
|
int idx = 0;
|
|
|
|
baked_tilt_cache.resize(pointlist.size());
|
|
real_t *wt = baked_tilt_cache.ptrw();
|
|
|
|
baked_up_vector_cache.resize(up_vector_enabled ? pointlist.size() : 0);
|
|
Vector3 *up_write = baked_up_vector_cache.ptrw();
|
|
|
|
Vector3 sideways;
|
|
Vector3 up;
|
|
Vector3 forward;
|
|
|
|
Vector3 prev_sideways = Vector3(1, 0, 0);
|
|
Vector3 prev_up = Vector3(0, 1, 0);
|
|
Vector3 prev_forward = Vector3(0, 0, 1);
|
|
|
|
for (List<Plane>::Element *E = pointlist.front(); E; E = E->next()) {
|
|
|
|
w[idx] = E->get().normal;
|
|
wt[idx] = E->get().d;
|
|
|
|
if (!up_vector_enabled) {
|
|
idx++;
|
|
continue;
|
|
}
|
|
|
|
forward = idx > 0 ? (w[idx] - w[idx - 1]).normalized() : prev_forward;
|
|
|
|
float y_dot = prev_up.dot(forward);
|
|
|
|
if (y_dot > (1.0f - CMP_EPSILON)) {
|
|
sideways = prev_sideways;
|
|
up = -prev_forward;
|
|
} else if (y_dot < -(1.0f - CMP_EPSILON)) {
|
|
sideways = prev_sideways;
|
|
up = prev_forward;
|
|
} else {
|
|
sideways = prev_up.cross(forward).normalized();
|
|
up = forward.cross(sideways).normalized();
|
|
}
|
|
|
|
if (idx == 1)
|
|
up_write[0] = up;
|
|
|
|
up_write[idx] = up;
|
|
|
|
prev_sideways = sideways;
|
|
prev_up = up;
|
|
prev_forward = forward;
|
|
|
|
idx++;
|
|
}
|
|
}
|
|
|
|
float Curve3D::get_baked_length() const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
return baked_max_ofs;
|
|
}
|
|
Vector3 Curve3D::interpolate_baked(float p_offset, bool p_cubic) const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//validate//
|
|
int pc = baked_point_cache.size();
|
|
ERR_FAIL_COND_V_MSG(pc == 0, Vector3(), "No points in Curve3D.");
|
|
|
|
if (pc == 1)
|
|
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];
|
|
|
|
int idx = Math::floor((double)p_offset / (double)bake_interval);
|
|
float 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);
|
|
} else {
|
|
frac /= bake_interval;
|
|
}
|
|
|
|
if (p_cubic) {
|
|
|
|
Vector3 pre = idx > 0 ? r[idx - 1] : r[idx];
|
|
Vector3 post = (idx < (bpc - 2)) ? r[idx + 2] : r[idx + 1];
|
|
return r[idx].cubic_interpolate(r[idx + 1], pre, post, frac);
|
|
} else {
|
|
return r[idx].linear_interpolate(r[idx + 1], frac);
|
|
}
|
|
}
|
|
|
|
float Curve3D::interpolate_baked_tilt(float p_offset) const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//validate//
|
|
int pc = baked_tilt_cache.size();
|
|
ERR_FAIL_COND_V_MSG(pc == 0, 0, "No tilts in Curve3D.");
|
|
|
|
if (pc == 1)
|
|
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];
|
|
|
|
int idx = Math::floor((double)p_offset / (double)bake_interval);
|
|
float 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);
|
|
} else {
|
|
frac /= bake_interval;
|
|
}
|
|
|
|
return Math::lerp(r[idx], r[idx + 1], frac);
|
|
}
|
|
|
|
Vector3 Curve3D::interpolate_baked_up_vector(float p_offset, bool p_apply_tilt) const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//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.");
|
|
|
|
if (count == 1)
|
|
return baked_up_vector_cache.get(0);
|
|
|
|
const Vector3 *r = baked_up_vector_cache.ptr();
|
|
const Vector3 *rp = baked_point_cache.ptr();
|
|
const real_t *rt = baked_tilt_cache.ptr();
|
|
|
|
float offset = CLAMP(p_offset, 0.0f, baked_max_ofs);
|
|
|
|
int idx = Math::floor((double)offset / (double)bake_interval);
|
|
float frac = Math::fmod(offset, bake_interval) / bake_interval;
|
|
|
|
if (idx == count - 1)
|
|
return p_apply_tilt ? r[idx].rotated((rp[idx] - rp[idx - 1]).normalized(), rt[idx]) : r[idx];
|
|
|
|
Vector3 forward = (rp[idx + 1] - rp[idx]).normalized();
|
|
Vector3 up = r[idx];
|
|
Vector3 up1 = r[idx + 1];
|
|
|
|
if (p_apply_tilt) {
|
|
up.rotate(forward, rt[idx]);
|
|
up1.rotate(idx + 2 >= count ? forward : (rp[idx + 2] - rp[idx + 1]).normalized(), rt[idx + 1]);
|
|
}
|
|
|
|
Vector3 axis = up.cross(up1);
|
|
|
|
if (axis.length_squared() < CMP_EPSILON2)
|
|
axis = forward;
|
|
else
|
|
axis.normalize();
|
|
|
|
return up.rotated(axis, up.angle_to(up1) * frac);
|
|
}
|
|
|
|
PackedVector3Array Curve3D::get_baked_points() const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
return baked_point_cache;
|
|
}
|
|
|
|
PackedFloat32Array Curve3D::get_baked_tilts() const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
return baked_tilt_cache;
|
|
}
|
|
|
|
PackedVector3Array Curve3D::get_baked_up_vectors() const {
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
return baked_up_vector_cache;
|
|
}
|
|
|
|
Vector3 Curve3D::get_closest_point(const Vector3 &p_to_point) const {
|
|
// Brute force method
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//validate//
|
|
int pc = baked_point_cache.size();
|
|
ERR_FAIL_COND_V_MSG(pc == 0, Vector3(), "No points in Curve3D.");
|
|
|
|
if (pc == 1)
|
|
return baked_point_cache.get(0);
|
|
|
|
const Vector3 *r = baked_point_cache.ptr();
|
|
|
|
Vector3 nearest;
|
|
float nearest_dist = -1.0f;
|
|
|
|
for (int i = 0; i < pc - 1; i++) {
|
|
Vector3 origin = r[i];
|
|
Vector3 direction = (r[i + 1] - origin) / bake_interval;
|
|
|
|
float d = CLAMP((p_to_point - origin).dot(direction), 0.0f, bake_interval);
|
|
Vector3 proj = origin + direction * d;
|
|
|
|
float dist = proj.distance_squared_to(p_to_point);
|
|
|
|
if (nearest_dist < 0.0f || dist < nearest_dist) {
|
|
nearest = proj;
|
|
nearest_dist = dist;
|
|
}
|
|
}
|
|
|
|
return nearest;
|
|
}
|
|
|
|
float Curve3D::get_closest_offset(const Vector3 &p_to_point) const {
|
|
// Brute force method
|
|
|
|
if (baked_cache_dirty)
|
|
_bake();
|
|
|
|
//validate//
|
|
int pc = baked_point_cache.size();
|
|
ERR_FAIL_COND_V_MSG(pc == 0, 0.0f, "No points in Curve3D.");
|
|
|
|
if (pc == 1)
|
|
return 0.0f;
|
|
|
|
const Vector3 *r = baked_point_cache.ptr();
|
|
|
|
float nearest = 0.0f;
|
|
float nearest_dist = -1.0f;
|
|
float offset = 0.0f;
|
|
|
|
for (int i = 0; i < pc - 1; i++) {
|
|
Vector3 origin = r[i];
|
|
Vector3 direction = (r[i + 1] - origin) / bake_interval;
|
|
|
|
float d = CLAMP((p_to_point - origin).dot(direction), 0.0f, bake_interval);
|
|
Vector3 proj = origin + direction * d;
|
|
|
|
float dist = proj.distance_squared_to(p_to_point);
|
|
|
|
if (nearest_dist < 0.0f || dist < nearest_dist) {
|
|
nearest = offset + d;
|
|
nearest_dist = dist;
|
|
}
|
|
|
|
offset += bake_interval;
|
|
}
|
|
|
|
return nearest;
|
|
}
|
|
|
|
void Curve3D::set_bake_interval(float p_tolerance) {
|
|
|
|
bake_interval = p_tolerance;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
float Curve3D::get_bake_interval() const {
|
|
|
|
return bake_interval;
|
|
}
|
|
|
|
void Curve3D::set_up_vector_enabled(bool p_enable) {
|
|
|
|
up_vector_enabled = p_enable;
|
|
baked_cache_dirty = true;
|
|
emit_signal(CoreStringNames::get_singleton()->changed);
|
|
}
|
|
|
|
bool Curve3D::is_up_vector_enabled() const {
|
|
|
|
return up_vector_enabled;
|
|
}
|
|
|
|
Dictionary Curve3D::_get_data() const {
|
|
|
|
Dictionary dc;
|
|
|
|
PackedVector3Array d;
|
|
d.resize(points.size() * 3);
|
|
Vector3 *w = d.ptrw();
|
|
PackedFloat32Array t;
|
|
t.resize(points.size());
|
|
real_t *wt = t.ptrw();
|
|
|
|
for (int i = 0; i < points.size(); i++) {
|
|
|
|
w[i * 3 + 0] = points[i].in;
|
|
w[i * 3 + 1] = points[i].out;
|
|
w[i * 3 + 2] = points[i].pos;
|
|
wt[i] = points[i].tilt;
|
|
}
|
|
|
|
dc["points"] = d;
|
|
dc["tilts"] = t;
|
|
|
|
return dc;
|
|
}
|
|
void Curve3D::_set_data(const Dictionary &p_data) {
|
|
|
|
ERR_FAIL_COND(!p_data.has("points"));
|
|
ERR_FAIL_COND(!p_data.has("tilts"));
|
|
|
|
PackedVector3Array rp = p_data["points"];
|
|
int pc = rp.size();
|
|
ERR_FAIL_COND(pc % 3 != 0);
|
|
points.resize(pc / 3);
|
|
const Vector3 *r = rp.ptr();
|
|
PackedFloat32Array rtl = p_data["tilts"];
|
|
const real_t *rt = rtl.ptr();
|
|
|
|
for (int i = 0; i < points.size(); i++) {
|
|
|
|
points.write[i].in = r[i * 3 + 0];
|
|
points.write[i].out = r[i * 3 + 1];
|
|
points.write[i].pos = r[i * 3 + 2];
|
|
points.write[i].tilt = rt[i];
|
|
}
|
|
|
|
baked_cache_dirty = true;
|
|
}
|
|
|
|
PackedVector3Array Curve3D::tessellate(int p_max_stages, float p_tolerance) const {
|
|
|
|
PackedVector3Array tess;
|
|
|
|
if (points.size() == 0) {
|
|
return tess;
|
|
}
|
|
Vector<Map<float, Vector3> > midpoints;
|
|
|
|
midpoints.resize(points.size() - 1);
|
|
|
|
int pc = 1;
|
|
for (int i = 0; i < points.size() - 1; i++) {
|
|
|
|
_bake_segment3d(midpoints.write[i], 0, 1, points[i].pos, points[i].out, points[i + 1].pos, points[i + 1].in, 0, p_max_stages, p_tolerance);
|
|
pc++;
|
|
pc += midpoints[i].size();
|
|
}
|
|
|
|
tess.resize(pc);
|
|
Vector3 *bpw = tess.ptrw();
|
|
bpw[0] = points[0].pos;
|
|
int pidx = 0;
|
|
|
|
for (int i = 0; i < points.size() - 1; i++) {
|
|
|
|
for (Map<float, Vector3>::Element *E = midpoints[i].front(); E; E = E->next()) {
|
|
|
|
pidx++;
|
|
bpw[pidx] = E->get();
|
|
}
|
|
|
|
pidx++;
|
|
bpw[pidx] = points[i + 1].pos;
|
|
}
|
|
|
|
return tess;
|
|
}
|
|
|
|
void Curve3D::_bind_methods() {
|
|
|
|
ClassDB::bind_method(D_METHOD("get_point_count"), &Curve3D::get_point_count);
|
|
ClassDB::bind_method(D_METHOD("add_point", "position", "in", "out", "at_position"), &Curve3D::add_point, DEFVAL(Vector3()), DEFVAL(Vector3()), DEFVAL(-1));
|
|
ClassDB::bind_method(D_METHOD("set_point_position", "idx", "position"), &Curve3D::set_point_position);
|
|
ClassDB::bind_method(D_METHOD("get_point_position", "idx"), &Curve3D::get_point_position);
|
|
ClassDB::bind_method(D_METHOD("set_point_tilt", "idx", "tilt"), &Curve3D::set_point_tilt);
|
|
ClassDB::bind_method(D_METHOD("get_point_tilt", "idx"), &Curve3D::get_point_tilt);
|
|
ClassDB::bind_method(D_METHOD("set_point_in", "idx", "position"), &Curve3D::set_point_in);
|
|
ClassDB::bind_method(D_METHOD("get_point_in", "idx"), &Curve3D::get_point_in);
|
|
ClassDB::bind_method(D_METHOD("set_point_out", "idx", "position"), &Curve3D::set_point_out);
|
|
ClassDB::bind_method(D_METHOD("get_point_out", "idx"), &Curve3D::get_point_out);
|
|
ClassDB::bind_method(D_METHOD("remove_point", "idx"), &Curve3D::remove_point);
|
|
ClassDB::bind_method(D_METHOD("clear_points"), &Curve3D::clear_points);
|
|
ClassDB::bind_method(D_METHOD("interpolate", "idx", "t"), &Curve3D::interpolate);
|
|
ClassDB::bind_method(D_METHOD("interpolatef", "fofs"), &Curve3D::interpolatef);
|
|
//ClassDB::bind_method(D_METHOD("bake","subdivs"),&Curve3D::bake,DEFVAL(10));
|
|
ClassDB::bind_method(D_METHOD("set_bake_interval", "distance"), &Curve3D::set_bake_interval);
|
|
ClassDB::bind_method(D_METHOD("get_bake_interval"), &Curve3D::get_bake_interval);
|
|
ClassDB::bind_method(D_METHOD("set_up_vector_enabled", "enable"), &Curve3D::set_up_vector_enabled);
|
|
ClassDB::bind_method(D_METHOD("is_up_vector_enabled"), &Curve3D::is_up_vector_enabled);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_baked_length"), &Curve3D::get_baked_length);
|
|
ClassDB::bind_method(D_METHOD("interpolate_baked", "offset", "cubic"), &Curve3D::interpolate_baked, DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("interpolate_baked_up_vector", "offset", "apply_tilt"), &Curve3D::interpolate_baked_up_vector, DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("get_baked_points"), &Curve3D::get_baked_points);
|
|
ClassDB::bind_method(D_METHOD("get_baked_tilts"), &Curve3D::get_baked_tilts);
|
|
ClassDB::bind_method(D_METHOD("get_baked_up_vectors"), &Curve3D::get_baked_up_vectors);
|
|
ClassDB::bind_method(D_METHOD("get_closest_point", "to_point"), &Curve3D::get_closest_point);
|
|
ClassDB::bind_method(D_METHOD("get_closest_offset", "to_point"), &Curve3D::get_closest_offset);
|
|
ClassDB::bind_method(D_METHOD("tessellate", "max_stages", "tolerance_degrees"), &Curve3D::tessellate, DEFVAL(5), DEFVAL(4));
|
|
|
|
ClassDB::bind_method(D_METHOD("_get_data"), &Curve3D::_get_data);
|
|
ClassDB::bind_method(D_METHOD("_set_data"), &Curve3D::_set_data);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "bake_interval", PROPERTY_HINT_RANGE, "0.01,512,0.01"), "set_bake_interval", "get_bake_interval");
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_data", "_get_data");
|
|
|
|
ADD_GROUP("Up Vector", "up_vector_");
|
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "up_vector_enabled"), "set_up_vector_enabled", "is_up_vector_enabled");
|
|
}
|
|
|
|
Curve3D::Curve3D() {
|
|
baked_cache_dirty = false;
|
|
baked_max_ofs = 0;
|
|
/* add_point(Vector3(-1,0,0));
|
|
add_point(Vector3(0,2,0));
|
|
add_point(Vector3(0,3,5));*/
|
|
bake_interval = 0.2;
|
|
up_vector_enabled = true;
|
|
}
|