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/**************************************************************************/
/* editor_atlas_packer.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 EDITOR_ATLAS_PACKER_H
#define EDITOR_ATLAS_PACKER_H
#include "core/templates/vector.h"
#include "scene/resources/bit_map.h"
struct Vector2;
struct Vector2i;
class EditorAtlasPacker {
public:
struct Chart {
Vector<Vector2> vertices;
struct Face {
int vertex[3] = { 0 };
};
Vector<Face> faces;
bool can_transpose = false;
Vector2 final_offset;
bool transposed = false;
};
private:
struct PlottedBitmap {
int chart_index = 0;
Vector2i offset;
int area = 0;
Vector<int> top_heights;
Vector<int> bottom_heights;
bool transposed = false;
Vector2 final_pos;
bool operator<(const PlottedBitmap &p_bm) const {
return area > p_bm.area;
}
};
public:
static void chart_pack(Vector<Chart> &charts, int &r_width, int &r_height, int p_atlas_max_size = 2048, int p_cell_resolution = 4);
};
#endif // EDITOR_ATLAS_PACKER_H
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