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448c41a3e4
Use ThreadWorkPool to process physics step tasks in multiple threads. Collisions are all processed in parallel and solving impulses is processed in parallel for rigid body islands. Additional changes: - Proper islands for soft bodies linked to active bodies - All moving areas are on separate islands (can be parallelized) - Fix inconsistencies with body islands (Kinematic bodies could link bodies together or not depending on the processing order) - Completely prevent static bodies to be active (it could cause islands to be wrongly created and cause dangerous multi-threading operations as well as inconsistencies in created islands) - Apply impulses only on dynamic bodies to avoid unsafe multi-threaded operations (static bodies can be on multiple islands) - Removed inverted iterations when populating body islands, it's now faster in regular order (maybe after fixing inconsistencies)
64 lines
3.1 KiB
C++
64 lines
3.1 KiB
C++
/*************************************************************************/
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/* step_2d_sw.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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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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#ifndef STEP_2D_SW_H
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#define STEP_2D_SW_H
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#include "space_2d_sw.h"
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#include "core/templates/local_vector.h"
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#include "core/templates/thread_work_pool.h"
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class Step2DSW {
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uint64_t _step;
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int iterations = 0;
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real_t delta = 0.0;
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ThreadWorkPool work_pool;
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LocalVector<LocalVector<Body2DSW *>> body_islands;
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LocalVector<LocalVector<Constraint2DSW *>> constraint_islands;
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LocalVector<Constraint2DSW *> all_constraints;
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void _populate_island(Body2DSW *p_body, LocalVector<Body2DSW *> &p_body_island, LocalVector<Constraint2DSW *> &p_constraint_island);
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void _setup_contraint(uint32_t p_constraint_index, void *p_userdata = nullptr);
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void _pre_solve_island(LocalVector<Constraint2DSW *> &p_constraint_island) const;
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void _solve_island(uint32_t p_island_index, void *p_userdata = nullptr) const;
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void _check_suspend(LocalVector<Body2DSW *> &p_body_island) const;
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public:
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void step(Space2DSW *p_space, real_t p_delta, int p_iterations);
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Step2DSW();
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~Step2DSW();
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};
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#endif // STEP_2D_SW_H
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