godot/scene/resources/curve.h

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/*************************************************************************/
/* curve.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef CURVE_H
#define CURVE_H
#include "resource.h"
// y(x) curve
class Curve : public Resource {
GDCLASS(Curve, Resource)
public:
static const int MIN_X = 0.f;
static const int MAX_X = 1.f;
static const char *SIGNAL_RANGE_CHANGED;
enum TangentMode {
TANGENT_FREE = 0,
TANGENT_LINEAR,
TANGENT_MODE_COUNT
};
struct Point {
Vector2 pos;
real_t left_tangent;
real_t right_tangent;
TangentMode left_mode;
TangentMode right_mode;
Point() {
left_tangent = 0;
right_tangent = 0;
left_mode = TANGENT_FREE;
right_mode = TANGENT_FREE;
}
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Point(Vector2 p_pos,
real_t p_left = 0,
real_t p_right = 0,
TangentMode p_left_mode = TANGENT_FREE,
TangentMode p_right_mode = TANGENT_FREE) {
pos = p_pos;
left_tangent = p_left;
right_tangent = p_right;
left_mode = p_left_mode;
right_mode = p_right_mode;
}
};
Curve();
int get_point_count() const { return _points.size(); }
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int add_point(Vector2 p_pos,
real_t left_tangent = 0,
real_t right_tangent = 0,
TangentMode left_mode = TANGENT_FREE,
TangentMode right_mode = TANGENT_FREE);
void remove_point(int p_index);
void clear_points();
int get_index(real_t offset) const;
void set_point_value(int p_index, real_t pos);
int set_point_offset(int p_index, float offset);
Vector2 get_point_pos(int p_index) const;
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Point get_point(int p_index) const;
float get_min_value() const { return _min_value; }
void set_min_value(float p_min);
float get_max_value() const { return _max_value; }
void set_max_value(float p_max);
real_t interpolate(real_t offset) const;
real_t interpolate_local_nocheck(int index, real_t local_offset) const;
void clean_dupes();
void set_point_left_tangent(int i, real_t tangent);
void set_point_right_tangent(int i, real_t tangent);
void set_point_left_mode(int i, TangentMode p_mode);
void set_point_right_mode(int i, TangentMode p_mode);
real_t get_point_left_tangent(int i) const;
real_t get_point_right_tangent(int i) const;
TangentMode get_point_left_mode(int i) const;
TangentMode get_point_right_mode(int i) const;
void update_auto_tangents(int i);
Array get_data() const;
void set_data(Array input);
void bake();
int get_bake_resolution() const { return _bake_resolution; }
void set_bake_resolution(int p_resolution);
real_t interpolate_baked(real_t offset);
protected:
static void _bind_methods();
private:
void mark_dirty();
Vector<Point> _points;
bool _baked_cache_dirty;
Vector<real_t> _baked_cache;
int _bake_resolution;
float _min_value;
float _max_value;
};
VARIANT_ENUM_CAST(Curve::TangentMode)
class Curve2D : public Resource {
GDCLASS(Curve2D, Resource);
struct Point {
Vector2 in;
Vector2 out;
Vector2 pos;
};
Vector<Point> points;
struct BakedPoint {
float ofs;
Vector2 point;
};
mutable bool baked_cache_dirty;
mutable PoolVector2Array baked_point_cache;
mutable float baked_max_ofs;
void _bake() const;
float bake_interval;
void _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;
Dictionary _get_data() const;
void _set_data(const Dictionary &p_data);
protected:
static void _bind_methods();
public:
int get_point_count() const;
void add_point(const Vector2 &p_pos, const Vector2 &p_in = Vector2(), const Vector2 &p_out = Vector2(), int p_atpos = -1);
void set_point_pos(int p_index, const Vector2 &p_pos);
Vector2 get_point_pos(int p_index) const;
void set_point_in(int p_index, const Vector2 &p_in);
Vector2 get_point_in(int p_index) const;
void set_point_out(int p_index, const Vector2 &p_out);
Vector2 get_point_out(int p_index) const;
void remove_point(int p_index);
void clear_points();
Vector2 interpolate(int p_index, float p_offset) const;
Vector2 interpolatef(real_t p_findex) const;
void set_bake_interval(float p_tolerance);
float get_bake_interval() const;
float get_baked_length() const;
Vector2 interpolate_baked(float p_offset, bool p_cubic = false) const;
PoolVector2Array get_baked_points() const; //useful for going through
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PoolVector2Array tessellate(int p_max_stages = 5, float p_tolerance = 4) const; //useful for display
Curve2D();
};
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class Curve3D : public Resource {
GDCLASS(Curve3D, Resource);
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struct Point {
Vector3 in;
Vector3 out;
Vector3 pos;
float tilt;
Point() { tilt = 0; }
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};
Vector<Point> points;
struct BakedPoint {
float ofs;
Vector3 point;
};
mutable bool baked_cache_dirty;
mutable PoolVector3Array baked_point_cache;
mutable PoolRealArray baked_tilt_cache;
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mutable float baked_max_ofs;
void _bake() const;
float bake_interval;
void _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;
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Dictionary _get_data() const;
void _set_data(const Dictionary &p_data);
protected:
static void _bind_methods();
public:
int get_point_count() const;
void add_point(const Vector3 &p_pos, const Vector3 &p_in = Vector3(), const Vector3 &p_out = Vector3(), int p_atpos = -1);
void set_point_pos(int p_index, const Vector3 &p_pos);
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Vector3 get_point_pos(int p_index) const;
void set_point_tilt(int p_index, float p_tilt);
float get_point_tilt(int p_index) const;
void set_point_in(int p_index, const Vector3 &p_in);
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Vector3 get_point_in(int p_index) const;
void set_point_out(int p_index, const Vector3 &p_out);
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Vector3 get_point_out(int p_index) const;
void remove_point(int p_index);
void clear_points();
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Vector3 interpolate(int p_index, float p_offset) const;
Vector3 interpolatef(real_t p_findex) const;
void set_bake_interval(float p_tolerance);
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float get_bake_interval() const;
float get_baked_length() const;
Vector3 interpolate_baked(float p_offset, bool p_cubic = false) const;
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float interpolate_baked_tilt(float p_offset) const;
PoolVector3Array get_baked_points() const; //useful for going through
PoolRealArray get_baked_tilts() const; //useful for going through
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PoolVector3Array tessellate(int p_max_stages = 5, float p_tolerance = 4) const; //useful for display
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Curve3D();
};
#endif // CURVE_H