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Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
90 lines
3.6 KiB
C++
90 lines
3.6 KiB
C++
/*************************************************************************/
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/* line_builder.h */
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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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#ifndef LINE_BUILDER_H
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#define LINE_BUILDER_H
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#include "core/color.h"
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#include "core/math/vector2.h"
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#include "line_2d.h"
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#include "scene/resources/gradient.h"
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class LineBuilder {
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public:
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// TODO Move in a struct and reference it
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// Input
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Vector<Vector2> points;
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Line2D::LineJointMode joint_mode;
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Line2D::LineCapMode begin_cap_mode;
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Line2D::LineCapMode end_cap_mode;
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float width;
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Curve *curve;
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Color default_color;
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Gradient *gradient;
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Line2D::LineTextureMode texture_mode;
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float sharp_limit;
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int round_precision;
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float tile_aspect; // w/h
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// TODO offset_joints option (offers alternative implementation of round joints)
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// TODO Move in a struct and reference it
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// Output
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Vector<Vector2> vertices;
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Vector<Color> colors;
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Vector<Vector2> uvs;
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Vector<int> indices;
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LineBuilder();
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void build();
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void clear_output();
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private:
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enum Orientation {
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UP = 0,
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DOWN = 1
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};
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// Triangle-strip methods
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void strip_begin(Vector2 up, Vector2 down, Color color, float uvx);
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void strip_new_quad(Vector2 up, Vector2 down, Color color, float uvx);
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void strip_add_quad(Vector2 up, Vector2 down, Color color, float uvx);
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void strip_add_tri(Vector2 up, Orientation orientation);
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void strip_add_arc(Vector2 center, float angle_delta, Orientation orientation);
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void new_arc(Vector2 center, Vector2 vbegin, float angle_delta, Color color, Rect2 uv_rect);
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private:
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bool _interpolate_color;
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int _last_index[2]; // Index of last up and down vertices of the strip
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};
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#endif // LINE_BUILDER_H
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