godot/servers/physics/collision_object_sw.cpp

239 lines
7.2 KiB
C++

/*************************************************************************/
/* collision_object_sw.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 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 "collision_object_sw.h"
#include "servers/physics/physics_server_sw.h"
#include "space_sw.h"
void CollisionObjectSW::add_shape(ShapeSW *p_shape, const Transform &p_transform, bool p_disabled) {
Shape s;
s.shape = p_shape;
s.xform = p_transform;
s.xform_inv = s.xform.affine_inverse();
s.bpid = 0; //needs update
s.disabled = p_disabled;
shapes.push_back(s);
p_shape->add_owner(this);
if (!pending_shape_update_list.in_list()) {
PhysicsServerSW::singleton->pending_shape_update_list.add(&pending_shape_update_list);
}
//_update_shapes();
//_shapes_changed();
}
void CollisionObjectSW::set_shape(int p_index, ShapeSW *p_shape) {
ERR_FAIL_INDEX(p_index, shapes.size());
shapes[p_index].shape->remove_owner(this);
shapes.write[p_index].shape = p_shape;
p_shape->add_owner(this);
if (!pending_shape_update_list.in_list()) {
PhysicsServerSW::singleton->pending_shape_update_list.add(&pending_shape_update_list);
}
//_update_shapes();
//_shapes_changed();
}
void CollisionObjectSW::set_shape_transform(int p_index, const Transform &p_transform) {
ERR_FAIL_INDEX(p_index, shapes.size());
shapes.write[p_index].xform = p_transform;
shapes.write[p_index].xform_inv = p_transform.affine_inverse();
if (!pending_shape_update_list.in_list()) {
PhysicsServerSW::singleton->pending_shape_update_list.add(&pending_shape_update_list);
}
//_update_shapes();
//_shapes_changed();
}
void CollisionObjectSW::set_shape_as_disabled(int p_idx, bool p_enable) {
shapes.write[p_idx].disabled = p_enable;
if (!pending_shape_update_list.in_list()) {
PhysicsServerSW::singleton->pending_shape_update_list.add(&pending_shape_update_list);
}
}
void CollisionObjectSW::remove_shape(ShapeSW *p_shape) {
//remove a shape, all the times it appears
for (int i = 0; i < shapes.size(); i++) {
if (shapes[i].shape == p_shape) {
remove_shape(i);
i--;
}
}
}
void CollisionObjectSW::remove_shape(int p_index) {
//remove anything from shape to be erased to end, so subindices don't change
ERR_FAIL_INDEX(p_index, shapes.size());
for (int i = p_index; i < shapes.size(); i++) {
if (shapes[i].bpid == 0)
continue;
//should never get here with a null owner
space->get_broadphase()->remove(shapes[i].bpid);
shapes.write[i].bpid = 0;
}
shapes[p_index].shape->remove_owner(this);
shapes.remove(p_index);
if (!pending_shape_update_list.in_list()) {
PhysicsServerSW::singleton->pending_shape_update_list.add(&pending_shape_update_list);
}
//_update_shapes();
//_shapes_changed();
}
void CollisionObjectSW::_set_static(bool p_static) {
if (_static == p_static)
return;
_static = p_static;
if (!space)
return;
for (int i = 0; i < get_shape_count(); i++) {
const Shape &s = shapes[i];
if (s.bpid > 0) {
space->get_broadphase()->set_static(s.bpid, _static);
}
}
}
void CollisionObjectSW::_unregister_shapes() {
for (int i = 0; i < shapes.size(); i++) {
Shape &s = shapes.write[i];
if (s.bpid > 0) {
space->get_broadphase()->remove(s.bpid);
s.bpid = 0;
}
}
}
void CollisionObjectSW::_update_shapes() {
if (!space)
return;
for (int i = 0; i < shapes.size(); i++) {
Shape &s = shapes.write[i];
if (s.bpid == 0) {
s.bpid = space->get_broadphase()->create(this, i);
space->get_broadphase()->set_static(s.bpid, _static);
}
//not quite correct, should compute the next matrix..
AABB shape_aabb = s.shape->get_aabb();
Transform xform = transform * s.xform;
shape_aabb = xform.xform(shape_aabb);
s.aabb_cache = shape_aabb;
s.aabb_cache = s.aabb_cache.grow((s.aabb_cache.size.x + s.aabb_cache.size.y) * 0.5 * 0.05);
Vector3 scale = xform.get_basis().get_scale();
s.area_cache = s.shape->get_area() * scale.x * scale.y * scale.z;
space->get_broadphase()->move(s.bpid, s.aabb_cache);
}
}
void CollisionObjectSW::_update_shapes_with_motion(const Vector3 &p_motion) {
if (!space)
return;
for (int i = 0; i < shapes.size(); i++) {
Shape &s = shapes.write[i];
if (s.bpid == 0) {
s.bpid = space->get_broadphase()->create(this, i);
space->get_broadphase()->set_static(s.bpid, _static);
}
//not quite correct, should compute the next matrix..
AABB shape_aabb = s.shape->get_aabb();
Transform xform = transform * s.xform;
shape_aabb = xform.xform(shape_aabb);
shape_aabb = shape_aabb.merge(AABB(shape_aabb.position + p_motion, shape_aabb.size)); //use motion
s.aabb_cache = shape_aabb;
space->get_broadphase()->move(s.bpid, shape_aabb);
}
}
void CollisionObjectSW::_set_space(SpaceSW *p_space) {
if (space) {
space->remove_object(this);
for (int i = 0; i < shapes.size(); i++) {
Shape &s = shapes.write[i];
if (s.bpid) {
space->get_broadphase()->remove(s.bpid);
s.bpid = 0;
}
}
}
space = p_space;
if (space) {
space->add_object(this);
_update_shapes();
}
}
void CollisionObjectSW::_shape_changed() {
_update_shapes();
_shapes_changed();
}
CollisionObjectSW::CollisionObjectSW(Type p_type) :
pending_shape_update_list(this) {
_static = true;
type = p_type;
space = NULL;
instance_id = 0;
collision_layer = 1;
collision_mask = 1;
ray_pickable = true;
}