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godot/servers/physics_2d/step_2d_sw.h

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GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
/*************************************************************************/
/* step_2d_sw.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
Use HTTPS URL for Godot's website in the headers
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/* https://godotengine.org */
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
/*************************************************************************/
Update copyright statements to 2021 Happy new year to the wonderful Godot community! 2020 has been a tough year for most of us personally, but a good year for Godot development nonetheless with a huge amount of work done towards Godot 4.0 and great improvements backported to the long-lived 3.2 branch. We've had close to 400 contributors to engine code this year, authoring near 7,000 commit! (And that's only for the `master` branch and for the engine code, there's a lot more when counting docs, demos and other first-party repos.) Here's to a great year 2021 for all Godot users 🎆
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* 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, */
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/*************************************************************************/
Add missing copyright headers and fix formatting Using `misc/scripts/fix_headers.py` on all Godot files. Some missing header guards were added, and the header inclusion order was fixed in the Bullet module.
2018-01-04 23:50:27 +00:00
GODOT IS OPEN SOURCE
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#ifndef STEP_2D_SW_H
#define STEP_2D_SW_H
#include "space_2d_sw.h"
Godot Physics solver optimization Several optimizations in the way solver islands are processed in both 2D and 3D physics: - Use LocalVector instead of linked list to avoid cache misses (with persistent storage based on worst case scenario) - Remove pairs when setup fails (no valid contact) to avoid unnecessary solving of non-colliding rigid bodies just to return immediately
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#include "core/templates/local_vector.h"
Godot Physics collisions and solver processed on threads 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)
2021-04-20 01:38:11 +00:00
#include "core/templates/thread_work_pool.h"
Godot Physics solver optimization Several optimizations in the way solver islands are processed in both 2D and 3D physics: - Use LocalVector instead of linked list to avoid cache misses (with persistent storage based on worst case scenario) - Remove pairs when setup fails (no valid contact) to avoid unnecessary solving of non-colliding rigid bodies just to return immediately
2021-04-12 23:22:06 +00:00
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
class Step2DSW {
Initialize variables in servers/physics
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uint64_t _step = 1;
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
Godot Physics collisions and solver processed on threads 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)
2021-04-20 01:38:11 +00:00
int iterations = 0;
real_t delta = 0.0;
ThreadWorkPool work_pool;
Godot Physics solver optimization Several optimizations in the way solver islands are processed in both 2D and 3D physics: - Use LocalVector instead of linked list to avoid cache misses (with persistent storage based on worst case scenario) - Remove pairs when setup fails (no valid contact) to avoid unnecessary solving of non-colliding rigid bodies just to return immediately
2021-04-12 23:22:06 +00:00
LocalVector<LocalVector<Body2DSW *>> body_islands;
LocalVector<LocalVector<Constraint2DSW *>> constraint_islands;
Godot Physics collisions and solver processed on threads 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)
2021-04-20 01:38:11 +00:00
LocalVector<Constraint2DSW *> all_constraints;
Godot Physics solver optimization Several optimizations in the way solver islands are processed in both 2D and 3D physics: - Use LocalVector instead of linked list to avoid cache misses (with persistent storage based on worst case scenario) - Remove pairs when setup fails (no valid contact) to avoid unnecessary solving of non-colliding rigid bodies just to return immediately
2021-04-12 23:22:06 +00:00
void _populate_island(Body2DSW *p_body, LocalVector<Body2DSW *> &p_body_island, LocalVector<Constraint2DSW *> &p_constraint_island);
Godot Physics collisions and solver processed on threads 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)
2021-04-20 01:38:11 +00:00
void _setup_contraint(uint32_t p_constraint_index, void *p_userdata = nullptr);
void _pre_solve_island(LocalVector<Constraint2DSW *> &p_constraint_island) const;
void _solve_island(uint32_t p_island_index, void *p_userdata = nullptr) const;
void _check_suspend(LocalVector<Body2DSW *> &p_body_island) const;
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
A Whole New World (clang-format edition) I can show you the code Pretty, with proper whitespace Tell me, coder, now when did You last write readable code? I can open your eyes Make you see your bad indent Force you to respect the style The core devs agreed upon A whole new world A new fantastic code format A de facto standard With some sugar Enforced with clang-format A whole new world A dazzling style we all dreamed of And when we read it through It's crystal clear That now we're in a whole new world of code
2017-03-05 15:44:50 +00:00
public:
void step(Space2DSW *p_space, real_t p_delta, int p_iterations);
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
Step2DSW();
Godot Physics collisions and solver processed on threads 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)
2021-04-20 01:38:11 +00:00
~Step2DSW();
GODOT IS OPEN SOURCE
2014-02-10 01:10:30 +00:00
};
#endif // STEP_2D_SW_H