godot/servers/physics_2d/area_pair_2d_sw.cpp
Rémi Verschelde 594764c2ec
Revert "make 2d constraint solving more deterministic by solving in push order"
This reverts commit 266314ba26.

There seems to be some performance concerns, so reverting the cherry-pick for
now and we'll revisit later (see https://github.com/godotengine/godot/pull/44112#issuecomment-829426790).
2021-04-29 19:12:19 +02:00

160 lines
5.8 KiB
C++

/*************************************************************************/
/* area_pair_2d_sw.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#include "area_pair_2d_sw.h"
#include "collision_solver_2d_sw.h"
bool AreaPair2DSW::setup(real_t p_step) {
bool result = false;
if (area->is_shape_set_as_disabled(area_shape) || body->is_shape_set_as_disabled(body_shape)) {
result = false;
} else if (area->test_collision_mask(body) && CollisionSolver2DSW::solve(body->get_shape(body_shape), body->get_transform() * body->get_shape_transform(body_shape), Vector2(), area->get_shape(area_shape), area->get_transform() * area->get_shape_transform(area_shape), Vector2(), NULL, this)) {
result = true;
}
if (result != colliding) {
if (result) {
if (area->get_space_override_mode() != Physics2DServer::AREA_SPACE_OVERRIDE_DISABLED)
body->add_area(area);
if (area->has_monitor_callback())
area->add_body_to_query(body, body_shape, area_shape);
} else {
if (area->get_space_override_mode() != Physics2DServer::AREA_SPACE_OVERRIDE_DISABLED)
body->remove_area(area);
if (area->has_monitor_callback())
area->remove_body_from_query(body, body_shape, area_shape);
}
colliding = result;
}
return false; //never do any post solving
}
void AreaPair2DSW::solve(real_t p_step) {
}
AreaPair2DSW::AreaPair2DSW(Body2DSW *p_body, int p_body_shape, Area2DSW *p_area, int p_area_shape) {
body = p_body;
area = p_area;
body_shape = p_body_shape;
area_shape = p_area_shape;
colliding = false;
body->add_constraint(this, 0);
area->add_constraint(this);
if (p_body->get_mode() == Physics2DServer::BODY_MODE_KINEMATIC) //need to be active to process pair
p_body->set_active(true);
}
AreaPair2DSW::~AreaPair2DSW() {
if (colliding) {
if (area->get_space_override_mode() != Physics2DServer::AREA_SPACE_OVERRIDE_DISABLED)
body->remove_area(area);
if (area->has_monitor_callback())
area->remove_body_from_query(body, body_shape, area_shape);
}
body->remove_constraint(this);
area->remove_constraint(this);
}
//////////////////////////////////
bool Area2Pair2DSW::setup(real_t p_step) {
bool result = false;
if (area_a->is_shape_set_as_disabled(shape_a) || area_b->is_shape_set_as_disabled(shape_b)) {
result = false;
} else if (area_a->test_collision_mask(area_b) && CollisionSolver2DSW::solve(area_a->get_shape(shape_a), area_a->get_transform() * area_a->get_shape_transform(shape_a), Vector2(), area_b->get_shape(shape_b), area_b->get_transform() * area_b->get_shape_transform(shape_b), Vector2(), NULL, this)) {
result = true;
}
if (result != colliding) {
if (result) {
if (area_b->has_area_monitor_callback() && area_a->is_monitorable())
area_b->add_area_to_query(area_a, shape_a, shape_b);
if (area_a->has_area_monitor_callback() && area_b->is_monitorable())
area_a->add_area_to_query(area_b, shape_b, shape_a);
} else {
if (area_b->has_area_monitor_callback() && area_a->is_monitorable())
area_b->remove_area_from_query(area_a, shape_a, shape_b);
if (area_a->has_area_monitor_callback() && area_b->is_monitorable())
area_a->remove_area_from_query(area_b, shape_b, shape_a);
}
colliding = result;
}
return false; //never do any post solving
}
void Area2Pair2DSW::solve(real_t p_step) {
}
Area2Pair2DSW::Area2Pair2DSW(Area2DSW *p_area_a, int p_shape_a, Area2DSW *p_area_b, int p_shape_b) {
area_a = p_area_a;
area_b = p_area_b;
shape_a = p_shape_a;
shape_b = p_shape_b;
colliding = false;
area_a->add_constraint(this);
area_b->add_constraint(this);
}
Area2Pair2DSW::~Area2Pair2DSW() {
if (colliding) {
if (area_b->has_area_monitor_callback())
area_b->remove_area_from_query(area_a, shape_a, shape_b);
if (area_a->has_area_monitor_callback())
area_a->remove_area_from_query(area_b, shape_b, shape_a);
}
area_a->remove_constraint(this);
area_b->remove_constraint(this);
}