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If the module is enabled (default), 3D physics works as it did before. If the module is disabled and no other 3D physics server is registered (via a module or GDExtension), then we fall back to a dummy implementation which effectively disables 3D physics functionality (and a warning is printed). The dummy 3D physics server can also be selected explicitly, in which case no warning is printed.
295 lines
9.2 KiB
C++
295 lines
9.2 KiB
C++
/**************************************************************************/
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/* godot_area_pair_3d.cpp */
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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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#include "godot_area_pair_3d.h"
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#include "godot_collision_solver_3d.h"
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bool GodotAreaPair3D::setup(real_t p_step) {
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bool result = false;
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if (area->collides_with(body) && GodotCollisionSolver3D::solve_static(body->get_shape(body_shape), body->get_transform() * body->get_shape_transform(body_shape), area->get_shape(area_shape), area->get_transform() * area->get_shape_transform(area_shape), nullptr, this)) {
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result = true;
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}
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process_collision = false;
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has_space_override = false;
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if (result != colliding) {
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if ((int)area->get_param(PhysicsServer3D::AREA_PARAM_GRAVITY_OVERRIDE_MODE) != PhysicsServer3D::AREA_SPACE_OVERRIDE_DISABLED) {
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has_space_override = true;
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} else if ((int)area->get_param(PhysicsServer3D::AREA_PARAM_LINEAR_DAMP_OVERRIDE_MODE) != PhysicsServer3D::AREA_SPACE_OVERRIDE_DISABLED) {
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has_space_override = true;
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} else if ((int)area->get_param(PhysicsServer3D::AREA_PARAM_ANGULAR_DAMP_OVERRIDE_MODE) != PhysicsServer3D::AREA_SPACE_OVERRIDE_DISABLED) {
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has_space_override = true;
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}
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process_collision = has_space_override;
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if (area->has_monitor_callback()) {
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process_collision = true;
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}
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colliding = result;
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}
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return process_collision;
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}
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bool GodotAreaPair3D::pre_solve(real_t p_step) {
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if (!process_collision) {
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return false;
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}
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if (colliding) {
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if (has_space_override) {
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body_has_attached_area = true;
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body->add_area(area);
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}
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if (area->has_monitor_callback()) {
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area->add_body_to_query(body, body_shape, area_shape);
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}
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} else {
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if (has_space_override) {
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body_has_attached_area = false;
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body->remove_area(area);
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}
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if (area->has_monitor_callback()) {
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area->remove_body_from_query(body, body_shape, area_shape);
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}
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}
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return false; // Never do any post solving.
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}
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void GodotAreaPair3D::solve(real_t p_step) {
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// Nothing to do.
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}
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GodotAreaPair3D::GodotAreaPair3D(GodotBody3D *p_body, int p_body_shape, GodotArea3D *p_area, int p_area_shape) {
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body = p_body;
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area = p_area;
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body_shape = p_body_shape;
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area_shape = p_area_shape;
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body->add_constraint(this, 0);
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area->add_constraint(this);
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if (p_body->get_mode() == PhysicsServer3D::BODY_MODE_KINEMATIC) {
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p_body->set_active(true);
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}
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}
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GodotAreaPair3D::~GodotAreaPair3D() {
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if (colliding) {
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if (body_has_attached_area) {
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body_has_attached_area = false;
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body->remove_area(area);
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}
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if (area->has_monitor_callback()) {
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area->remove_body_from_query(body, body_shape, area_shape);
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}
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}
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body->remove_constraint(this);
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area->remove_constraint(this);
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}
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////////////////////////////////////////////////////
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bool GodotArea2Pair3D::setup(real_t p_step) {
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bool result_a = area_a->collides_with(area_b);
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bool result_b = area_b->collides_with(area_a);
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if ((result_a || result_b) && !GodotCollisionSolver3D::solve_static(area_a->get_shape(shape_a), area_a->get_transform() * area_a->get_shape_transform(shape_a), area_b->get_shape(shape_b), area_b->get_transform() * area_b->get_shape_transform(shape_b), nullptr, this)) {
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result_a = false;
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result_b = false;
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}
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bool process_collision = false;
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process_collision_a = false;
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if (result_a != colliding_a) {
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if (area_a->has_area_monitor_callback() && area_b_monitorable) {
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process_collision_a = true;
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process_collision = true;
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}
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colliding_a = result_a;
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}
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process_collision_b = false;
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if (result_b != colliding_b) {
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if (area_b->has_area_monitor_callback() && area_a_monitorable) {
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process_collision_b = true;
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process_collision = true;
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}
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colliding_b = result_b;
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}
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return process_collision;
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}
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bool GodotArea2Pair3D::pre_solve(real_t p_step) {
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if (process_collision_a) {
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if (colliding_a) {
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area_a->add_area_to_query(area_b, shape_b, shape_a);
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} else {
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area_a->remove_area_from_query(area_b, shape_b, shape_a);
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}
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}
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if (process_collision_b) {
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if (colliding_b) {
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area_b->add_area_to_query(area_a, shape_a, shape_b);
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} else {
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area_b->remove_area_from_query(area_a, shape_a, shape_b);
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}
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}
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return false; // Never do any post solving.
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}
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void GodotArea2Pair3D::solve(real_t p_step) {
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// Nothing to do.
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}
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GodotArea2Pair3D::GodotArea2Pair3D(GodotArea3D *p_area_a, int p_shape_a, GodotArea3D *p_area_b, int p_shape_b) {
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area_a = p_area_a;
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area_b = p_area_b;
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shape_a = p_shape_a;
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shape_b = p_shape_b;
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area_a_monitorable = area_a->is_monitorable();
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area_b_monitorable = area_b->is_monitorable();
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area_a->add_constraint(this);
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area_b->add_constraint(this);
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}
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GodotArea2Pair3D::~GodotArea2Pair3D() {
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if (colliding_a) {
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if (area_a->has_area_monitor_callback() && area_b_monitorable) {
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area_a->remove_area_from_query(area_b, shape_b, shape_a);
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}
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}
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if (colliding_b) {
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if (area_b->has_area_monitor_callback() && area_a_monitorable) {
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area_b->remove_area_from_query(area_a, shape_a, shape_b);
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}
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}
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area_a->remove_constraint(this);
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area_b->remove_constraint(this);
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}
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////////////////////////////////////////////////////
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bool GodotAreaSoftBodyPair3D::setup(real_t p_step) {
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bool result = false;
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if (
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area->collides_with(soft_body) &&
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GodotCollisionSolver3D::solve_static(
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soft_body->get_shape(soft_body_shape),
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soft_body->get_transform() * soft_body->get_shape_transform(soft_body_shape),
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area->get_shape(area_shape),
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area->get_transform() * area->get_shape_transform(area_shape),
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nullptr,
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this)) {
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result = true;
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}
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process_collision = false;
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has_space_override = false;
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if (result != colliding) {
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if ((int)area->get_param(PhysicsServer3D::AREA_PARAM_GRAVITY_OVERRIDE_MODE) != PhysicsServer3D::AREA_SPACE_OVERRIDE_DISABLED) {
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has_space_override = true;
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} else if (area->get_wind_force_magnitude() > CMP_EPSILON) {
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has_space_override = true;
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}
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if (area->has_monitor_callback()) {
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process_collision = true;
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}
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colliding = result;
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}
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return process_collision;
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}
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bool GodotAreaSoftBodyPair3D::pre_solve(real_t p_step) {
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if (!process_collision) {
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return false;
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}
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if (colliding) {
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if (has_space_override) {
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body_has_attached_area = true;
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soft_body->add_area(area);
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}
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if (area->has_monitor_callback()) {
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area->add_soft_body_to_query(soft_body, soft_body_shape, area_shape);
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}
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} else {
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if (has_space_override) {
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body_has_attached_area = false;
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soft_body->remove_area(area);
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}
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if (area->has_monitor_callback()) {
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area->remove_soft_body_from_query(soft_body, soft_body_shape, area_shape);
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}
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}
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return false; // Never do any post solving.
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}
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void GodotAreaSoftBodyPair3D::solve(real_t p_step) {
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// Nothing to do.
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}
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GodotAreaSoftBodyPair3D::GodotAreaSoftBodyPair3D(GodotSoftBody3D *p_soft_body, int p_soft_body_shape, GodotArea3D *p_area, int p_area_shape) {
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soft_body = p_soft_body;
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area = p_area;
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soft_body_shape = p_soft_body_shape;
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area_shape = p_area_shape;
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soft_body->add_constraint(this);
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area->add_constraint(this);
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}
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GodotAreaSoftBodyPair3D::~GodotAreaSoftBodyPair3D() {
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if (colliding) {
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if (body_has_attached_area) {
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body_has_attached_area = false;
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soft_body->remove_area(area);
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}
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if (area->has_monitor_callback()) {
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area->remove_soft_body_from_query(soft_body, soft_body_shape, area_shape);
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}
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}
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soft_body->remove_constraint(this);
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area->remove_constraint(this);
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}
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