b5334d14f7
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 🎆
166 lines
6.5 KiB
C++
166 lines
6.5 KiB
C++
/*************************************************************************/
|
|
/* spring_arm_3d.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 "spring_arm_3d.h"
|
|
|
|
#include "core/config/engine.h"
|
|
#include "scene/3d/collision_object_3d.h"
|
|
#include "scene/resources/sphere_shape_3d.h"
|
|
#include "servers/physics_server_3d.h"
|
|
|
|
void SpringArm3D::_notification(int p_what) {
|
|
switch (p_what) {
|
|
case NOTIFICATION_ENTER_TREE:
|
|
if (!Engine::get_singleton()->is_editor_hint()) {
|
|
set_physics_process_internal(true);
|
|
}
|
|
break;
|
|
case NOTIFICATION_EXIT_TREE:
|
|
if (!Engine::get_singleton()->is_editor_hint()) {
|
|
set_physics_process_internal(false);
|
|
}
|
|
break;
|
|
case NOTIFICATION_INTERNAL_PHYSICS_PROCESS:
|
|
process_spring();
|
|
break;
|
|
}
|
|
}
|
|
|
|
void SpringArm3D::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("get_hit_length"), &SpringArm3D::get_hit_length);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_length", "length"), &SpringArm3D::set_length);
|
|
ClassDB::bind_method(D_METHOD("get_length"), &SpringArm3D::get_length);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_shape", "shape"), &SpringArm3D::set_shape);
|
|
ClassDB::bind_method(D_METHOD("get_shape"), &SpringArm3D::get_shape);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_excluded_object", "RID"), &SpringArm3D::add_excluded_object);
|
|
ClassDB::bind_method(D_METHOD("remove_excluded_object", "RID"), &SpringArm3D::remove_excluded_object);
|
|
ClassDB::bind_method(D_METHOD("clear_excluded_objects"), &SpringArm3D::clear_excluded_objects);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_collision_mask", "mask"), &SpringArm3D::set_mask);
|
|
ClassDB::bind_method(D_METHOD("get_collision_mask"), &SpringArm3D::get_mask);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_margin", "margin"), &SpringArm3D::set_margin);
|
|
ClassDB::bind_method(D_METHOD("get_margin"), &SpringArm3D::get_margin);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_mask", PROPERTY_HINT_LAYERS_3D_PHYSICS), "set_collision_mask", "get_collision_mask");
|
|
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape3D"), "set_shape", "get_shape");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "spring_length"), "set_length", "get_length");
|
|
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "margin"), "set_margin", "get_margin");
|
|
}
|
|
|
|
float SpringArm3D::get_length() const {
|
|
return spring_length;
|
|
}
|
|
|
|
void SpringArm3D::set_length(float p_length) {
|
|
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || get_tree()->is_debugging_collisions_hint())) {
|
|
update_gizmo();
|
|
}
|
|
|
|
spring_length = p_length;
|
|
}
|
|
|
|
void SpringArm3D::set_shape(Ref<Shape3D> p_shape) {
|
|
shape = p_shape;
|
|
}
|
|
|
|
Ref<Shape3D> SpringArm3D::get_shape() const {
|
|
return shape;
|
|
}
|
|
|
|
void SpringArm3D::set_mask(uint32_t p_mask) {
|
|
mask = p_mask;
|
|
}
|
|
|
|
uint32_t SpringArm3D::get_mask() {
|
|
return mask;
|
|
}
|
|
|
|
float SpringArm3D::get_margin() {
|
|
return margin;
|
|
}
|
|
|
|
void SpringArm3D::set_margin(float p_margin) {
|
|
margin = p_margin;
|
|
}
|
|
|
|
void SpringArm3D::add_excluded_object(RID p_rid) {
|
|
excluded_objects.insert(p_rid);
|
|
}
|
|
|
|
bool SpringArm3D::remove_excluded_object(RID p_rid) {
|
|
return excluded_objects.erase(p_rid);
|
|
}
|
|
|
|
void SpringArm3D::clear_excluded_objects() {
|
|
excluded_objects.clear();
|
|
}
|
|
|
|
float SpringArm3D::get_hit_length() {
|
|
return current_spring_length;
|
|
}
|
|
|
|
void SpringArm3D::process_spring() {
|
|
// From
|
|
real_t motion_delta(1);
|
|
real_t motion_delta_unsafe(1);
|
|
|
|
Vector3 motion;
|
|
const Vector3 cast_direction(get_global_transform().basis.xform(Vector3(0, 0, 1)));
|
|
|
|
if (shape.is_null()) {
|
|
motion = Vector3(cast_direction * (spring_length));
|
|
PhysicsDirectSpaceState3D::RayResult r;
|
|
bool intersected = get_world_3d()->get_direct_space_state()->intersect_ray(get_global_transform().origin, get_global_transform().origin + motion, r, excluded_objects, mask);
|
|
if (intersected) {
|
|
float dist = get_global_transform().origin.distance_to(r.position);
|
|
dist -= margin;
|
|
motion_delta = dist / (spring_length);
|
|
}
|
|
} else {
|
|
motion = Vector3(cast_direction * spring_length);
|
|
get_world_3d()->get_direct_space_state()->cast_motion(shape->get_rid(), get_global_transform(), motion, 0, motion_delta, motion_delta_unsafe, excluded_objects, mask);
|
|
}
|
|
|
|
current_spring_length = spring_length * motion_delta;
|
|
Transform childs_transform;
|
|
childs_transform.origin = get_global_transform().origin + cast_direction * (spring_length * motion_delta);
|
|
|
|
for (int i = get_child_count() - 1; 0 <= i; --i) {
|
|
Node3D *child = Object::cast_to<Node3D>(get_child(i));
|
|
if (child) {
|
|
childs_transform.basis = child->get_global_transform().basis;
|
|
child->set_global_transform(childs_transform);
|
|
}
|
|
}
|
|
}
|