godot/scene/resources/concave_polygon_shape_3d.h
PouleyKetchoupp 7bbd545432 Disable backface collision with ConcavePolygonShape by default
Helps a lot with soft bodies and generally useful to avoid shapes to go
through the ground in certain cases.

Added an option in ConcavePolygonShape to re-enable backface collision
on specific bodies if needed.
2021-03-18 11:30:22 -07:00

81 lines
3.2 KiB
C++

/*************************************************************************/
/* concave_polygon_shape_3d.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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.*/
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/*************************************************************************/
#ifndef CONCAVE_POLYGON_SHAPE_3D_H
#define CONCAVE_POLYGON_SHAPE_3D_H
#include "scene/resources/shape_3d.h"
class ConcavePolygonShape3D : public Shape3D {
GDCLASS(ConcavePolygonShape3D, Shape3D);
Vector<Vector3> faces;
bool backface_collision = false;
struct DrawEdge {
Vector3 a;
Vector3 b;
bool operator<(const DrawEdge &p_edge) const {
if (a == p_edge.a) {
return b < p_edge.b;
} else {
return a < p_edge.a;
}
}
DrawEdge(const Vector3 &p_a = Vector3(), const Vector3 &p_b = Vector3()) {
a = p_a;
b = p_b;
if (a < b) {
SWAP(a, b);
}
}
};
protected:
static void _bind_methods();
virtual void _update_shape() override;
public:
void set_faces(const Vector<Vector3> &p_faces);
Vector<Vector3> get_faces() const;
void set_backface_collision_enabled(bool p_enabled);
bool is_backface_collision_enabled() const;
virtual Vector<Vector3> get_debug_mesh_lines() const override;
virtual real_t get_enclosing_radius() const override;
ConcavePolygonShape3D();
};
#endif // CONCAVE_POLYGON_SHAPE_H