godot/modules/godot_physics_3d/godot_broad_phase_3d_bvh.h
Ricardo Buring 0333648cea Move Godot Physics 3D into a module; add dummy 3D physics server
If the module is enabled (default), 3D physics works as it did before.

If the module is disabled and no other 3D physics server is registered
(via a module or GDExtension), then we fall back to a dummy
implementation which effectively disables 3D physics functionality (and
a warning is printed).

The dummy 3D physics server can also be selected explicitly, in which
case no warning is printed.
2024-09-21 21:19:45 +02:00

101 lines
4.7 KiB
C++

/**************************************************************************/
/* godot_broad_phase_3d_bvh.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 GODOT_BROAD_PHASE_3D_BVH_H
#define GODOT_BROAD_PHASE_3D_BVH_H
#include "godot_broad_phase_3d.h"
#include "core/math/bvh.h"
class GodotBroadPhase3DBVH : public GodotBroadPhase3D {
template <typename T>
class UserPairTestFunction {
public:
static bool user_pair_check(const T *p_a, const T *p_b) {
// return false if no collision, decided by masks etc
return p_a->interacts_with(p_b);
}
};
template <typename T>
class UserCullTestFunction {
public:
static bool user_cull_check(const T *p_a, const T *p_b) {
return true;
}
};
enum Tree {
TREE_STATIC = 0,
TREE_DYNAMIC = 1,
};
enum TreeFlag {
TREE_FLAG_STATIC = 1 << TREE_STATIC,
TREE_FLAG_DYNAMIC = 1 << TREE_DYNAMIC,
};
BVH_Manager<GodotCollisionObject3D, 2, true, 128, UserPairTestFunction<GodotCollisionObject3D>, UserCullTestFunction<GodotCollisionObject3D>> bvh;
static void *_pair_callback(void *, uint32_t, GodotCollisionObject3D *, int, uint32_t, GodotCollisionObject3D *, int);
static void _unpair_callback(void *, uint32_t, GodotCollisionObject3D *, int, uint32_t, GodotCollisionObject3D *, int, void *);
PairCallback pair_callback = nullptr;
void *pair_userdata = nullptr;
UnpairCallback unpair_callback = nullptr;
void *unpair_userdata = nullptr;
public:
// 0 is an invalid ID
virtual ID create(GodotCollisionObject3D *p_object, int p_subindex = 0, const AABB &p_aabb = AABB(), bool p_static = false) override;
virtual void move(ID p_id, const AABB &p_aabb) override;
virtual void set_static(ID p_id, bool p_static) override;
virtual void remove(ID p_id) override;
virtual GodotCollisionObject3D *get_object(ID p_id) const override;
virtual bool is_static(ID p_id) const override;
virtual int get_subindex(ID p_id) const override;
virtual int cull_point(const Vector3 &p_point, GodotCollisionObject3D **p_results, int p_max_results, int *p_result_indices = nullptr) override;
virtual int cull_segment(const Vector3 &p_from, const Vector3 &p_to, GodotCollisionObject3D **p_results, int p_max_results, int *p_result_indices = nullptr) override;
virtual int cull_aabb(const AABB &p_aabb, GodotCollisionObject3D **p_results, int p_max_results, int *p_result_indices = nullptr) override;
virtual void set_pair_callback(PairCallback p_pair_callback, void *p_userdata) override;
virtual void set_unpair_callback(UnpairCallback p_unpair_callback, void *p_userdata) override;
virtual void update() override;
static GodotBroadPhase3D *_create();
GodotBroadPhase3DBVH();
};
#endif // GODOT_BROAD_PHASE_3D_BVH_H