105 lines
3.8 KiB
C++
105 lines
3.8 KiB
C++
/*************************************************************************/
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/* convex_polygon_shape_2d.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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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 "convex_polygon_shape_2d.h"
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#include "servers/physics_2d_server.h"
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#include "servers/visual_server.h"
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#include "geometry.h"
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void ConvexPolygonShape2D::_update_shape() {
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Physics2DServer::get_singleton()->shape_set_data(get_rid(),points);
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emit_changed();
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}
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void ConvexPolygonShape2D::set_point_cloud(const Vector<Vector2>& p_points) {
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Vector<Point2> hull=Geometry::convex_hull_2d(p_points);
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ERR_FAIL_COND(hull.size()<3);
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set_points(hull);
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}
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void ConvexPolygonShape2D::set_points(const Vector<Vector2>& p_points) {
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points=p_points;
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_update_shape();
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}
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Vector<Vector2> ConvexPolygonShape2D::get_points() const {
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return points;
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}
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void ConvexPolygonShape2D::_bind_methods() {
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ClassDB::bind_method(_MD("set_point_cloud","point_cloud"),&ConvexPolygonShape2D::set_point_cloud);
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ClassDB::bind_method(_MD("set_points","points"),&ConvexPolygonShape2D::set_points);
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ClassDB::bind_method(_MD("get_points"),&ConvexPolygonShape2D::get_points);
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ADD_PROPERTY( PropertyInfo(Variant::POOL_VECTOR2_ARRAY,"points"),"set_points","get_points") ;
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}
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void ConvexPolygonShape2D::draw(const RID& p_to_rid,const Color& p_color) {
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Vector<Color> col;
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col.push_back(p_color);
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VisualServer::get_singleton()->canvas_item_add_polygon(p_to_rid,points,col);
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}
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Rect2 ConvexPolygonShape2D::get_rect() const {
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Rect2 rect;
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for(int i=0;i<points.size();i++) {
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if (i==0)
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rect.pos=points[i];
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else
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rect.expand_to(points[i]);
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}
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return rect;
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}
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ConvexPolygonShape2D::ConvexPolygonShape2D() : Shape2D( Physics2DServer::get_singleton()->shape_create(Physics2DServer::SHAPE_CONVEX_POLYGON)) {
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int pcount =3;
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for(int i=0;i<pcount;i++)
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points.push_back(Vector2(Math::sin(i*Math_PI*2/pcount),-Math::cos(i*Math_PI*2/pcount))*10);
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_update_shape();
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}
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