1/**************************************************************************/
2/* godot_broad_phase_2d_bvh.h */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
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12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
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19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
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29/**************************************************************************/
30
31#ifndef GODOT_BROAD_PHASE_2D_BVH_H
32#define GODOT_BROAD_PHASE_2D_BVH_H
33
34#include "godot_broad_phase_2d.h"
35
36#include "core/math/bvh.h"
37#include "core/math/rect2.h"
38#include "core/math/vector2.h"
39
40class GodotBroadPhase2DBVH : public GodotBroadPhase2D {
41 template <class T>
42 class UserPairTestFunction {
43 public:
44 static bool user_pair_check(const T *p_a, const T *p_b) {
45 // return false if no collision, decided by masks etc
46 return p_a->interacts_with(p_b);
47 }
48 };
49
50 template <class T>
51 class UserCullTestFunction {
52 public:
53 static bool user_cull_check(const T *p_a, const T *p_b) {
54 return true;
55 }
56 };
57
58 enum Tree {
59 TREE_STATIC = 0,
60 TREE_DYNAMIC = 1,
61 };
62
63 enum TreeFlag {
64 TREE_FLAG_STATIC = 1 << TREE_STATIC,
65 TREE_FLAG_DYNAMIC = 1 << TREE_DYNAMIC,
66 };
67
68 BVH_Manager<GodotCollisionObject2D, 2, true, 128, UserPairTestFunction<GodotCollisionObject2D>, UserCullTestFunction<GodotCollisionObject2D>, Rect2, Vector2> bvh;
69
70 static void *_pair_callback(void *, uint32_t, GodotCollisionObject2D *, int, uint32_t, GodotCollisionObject2D *, int);
71 static void _unpair_callback(void *, uint32_t, GodotCollisionObject2D *, int, uint32_t, GodotCollisionObject2D *, int, void *);
72
73 PairCallback pair_callback = nullptr;
74 void *pair_userdata = nullptr;
75 UnpairCallback unpair_callback = nullptr;
76 void *unpair_userdata = nullptr;
77
78public:
79 // 0 is an invalid ID
80 virtual ID create(GodotCollisionObject2D *p_object, int p_subindex = 0, const Rect2 &p_aabb = Rect2(), bool p_static = false) override;
81 virtual void move(ID p_id, const Rect2 &p_aabb) override;
82 virtual void set_static(ID p_id, bool p_static) override;
83 virtual void remove(ID p_id) override;
84
85 virtual GodotCollisionObject2D *get_object(ID p_id) const override;
86 virtual bool is_static(ID p_id) const override;
87 virtual int get_subindex(ID p_id) const override;
88
89 virtual int cull_segment(const Vector2 &p_from, const Vector2 &p_to, GodotCollisionObject2D **p_results, int p_max_results, int *p_result_indices = nullptr) override;
90 virtual int cull_aabb(const Rect2 &p_aabb, GodotCollisionObject2D **p_results, int p_max_results, int *p_result_indices = nullptr) override;
91
92 virtual void set_pair_callback(PairCallback p_pair_callback, void *p_userdata) override;
93 virtual void set_unpair_callback(UnpairCallback p_unpair_callback, void *p_userdata) override;
94
95 virtual void update() override;
96
97 static GodotBroadPhase2D *_create();
98 GodotBroadPhase2DBVH();
99};
100
101#endif // GODOT_BROAD_PHASE_2D_BVH_H
102