initial commit, 4.5 stable

modules/godot_physics_2d/godot_broad_phase_2d_bvh.h

@@ -0,0 +1,98 @@
+/**************************************************************************/
+/*  godot_broad_phase_2d_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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "godot_broad_phase_2d.h"
+
+#include "core/math/bvh.h"
+#include "core/math/rect2.h"
+#include "core/math/vector2.h"
+
+class GodotBroadPhase2DBVH : public GodotBroadPhase2D {
+	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<GodotCollisionObject2D, 2, true, 128, UserPairTestFunction<GodotCollisionObject2D>, UserCullTestFunction<GodotCollisionObject2D>, Rect2, Vector2> bvh;
+
+	static void *_pair_callback(void *, uint32_t, GodotCollisionObject2D *, int, uint32_t, GodotCollisionObject2D *, int);
+	static void _unpair_callback(void *, uint32_t, GodotCollisionObject2D *, int, uint32_t, GodotCollisionObject2D *, 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(GodotCollisionObject2D *p_object, int p_subindex = 0, const Rect2 &p_aabb = Rect2(), bool p_static = false) override;
+	virtual void move(ID p_id, const Rect2 &p_aabb) override;
+	virtual void set_static(ID p_id, bool p_static) override;
+	virtual void remove(ID p_id) override;
+
+	virtual GodotCollisionObject2D *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_segment(const Vector2 &p_from, const Vector2 &p_to, GodotCollisionObject2D **p_results, int p_max_results, int *p_result_indices = nullptr) override;
+	virtual int cull_aabb(const Rect2 &p_aabb, GodotCollisionObject2D **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 GodotBroadPhase2D *_create();
+	GodotBroadPhase2DBVH();
+};