0e29f7974b
This commit makes operator[] on Vector const and adds a write proxy to it. From now on writes to Vectors need to happen through the .write proxy. So for instance: Vector<int> vec; vec.push_back(10); std::cout << vec[0] << std::endl; vec.write[0] = 20; Failing to use the .write proxy will cause a compilation error. In addition COWable datatypes can now embed a CowData pointer to their data. This means that String, CharString, and VMap no longer use or derive from Vector. _ALWAYS_INLINE_ and _FORCE_INLINE_ are now equivalent for debug and non-debug builds. This is a lot faster for Vector in the editor and while running tests. The reason why this difference used to exist is because force-inlined methods used to give a bad debugging experience. After extensive testing with modern compilers this is no longer the case.
130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
/*************************************************************************/
|
|
/* color_ramp.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "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 SCENE_RESOURCES_COLOR_RAMP_H_
|
|
#define SCENE_RESOURCES_COLOR_RAMP_H_
|
|
|
|
#include "resource.h"
|
|
|
|
class Gradient : public Resource {
|
|
GDCLASS(Gradient, Resource);
|
|
OBJ_SAVE_TYPE(Gradient);
|
|
|
|
public:
|
|
struct Point {
|
|
|
|
float offset;
|
|
Color color;
|
|
bool operator<(const Point &p_ponit) const {
|
|
return offset < p_ponit.offset;
|
|
}
|
|
};
|
|
|
|
private:
|
|
Vector<Point> points;
|
|
bool is_sorted;
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
public:
|
|
Gradient();
|
|
virtual ~Gradient();
|
|
|
|
void add_point(float p_offset, const Color &p_color);
|
|
void remove_point(int p_index);
|
|
|
|
void set_points(Vector<Point> &p_points);
|
|
Vector<Point> &get_points();
|
|
|
|
void set_offset(int pos, const float offset);
|
|
float get_offset(int pos) const;
|
|
|
|
void set_color(int pos, const Color &color);
|
|
Color get_color(int pos) const;
|
|
|
|
void set_offsets(const Vector<float> &p_offsets);
|
|
Vector<float> get_offsets() const;
|
|
|
|
void set_colors(const Vector<Color> &p_colors);
|
|
Vector<Color> get_colors() const;
|
|
|
|
_FORCE_INLINE_ Color get_color_at_offset(float p_offset) {
|
|
|
|
if (points.empty())
|
|
return Color(0, 0, 0, 1);
|
|
|
|
if (!is_sorted) {
|
|
points.sort();
|
|
is_sorted = true;
|
|
}
|
|
|
|
//binary search
|
|
int low = 0;
|
|
int high = points.size() - 1;
|
|
int middle = 0;
|
|
|
|
#if DEBUG_ENABLED
|
|
if (low > high)
|
|
ERR_PRINT("low > high, this may be a bug");
|
|
#endif
|
|
|
|
while (low <= high) {
|
|
middle = (low + high) / 2;
|
|
const Point &point = points[middle];
|
|
if (point.offset > p_offset) {
|
|
high = middle - 1; //search low end of array
|
|
} else if (point.offset < p_offset) {
|
|
low = middle + 1; //search high end of array
|
|
} else {
|
|
return point.color;
|
|
}
|
|
}
|
|
|
|
//return interpolated value
|
|
if (points[middle].offset > p_offset) {
|
|
middle--;
|
|
}
|
|
int first = middle;
|
|
int second = middle + 1;
|
|
if (second >= points.size())
|
|
return points[points.size() - 1].color;
|
|
if (first < 0)
|
|
return points[0].color;
|
|
const Point &pointFirst = points[first];
|
|
const Point &pointSecond = points[second];
|
|
return pointFirst.color.linear_interpolate(pointSecond.color, (p_offset - pointFirst.offset) / (pointSecond.offset - pointFirst.offset));
|
|
}
|
|
|
|
int get_points_count() const;
|
|
};
|
|
|
|
#endif /* SCENE_RESOURCES_COLOR_RAMP_H_ */
|