6d0f4a4ad7
New APIs in 2D physics allow intersection queries filtered by CanvasLayer object instance id. Viewport keep an inventory of its descendant CanvasLayers and takes advantage of all that to test picking with the mouse/touch position correctly transformed for each CanvasLayer.
252 lines
7 KiB
C++
252 lines
7 KiB
C++
/*************************************************************************/
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/* collision_object_2d_sw.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) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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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 "collision_object_2d_sw.h"
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#include "space_2d_sw.h"
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void CollisionObject2DSW::add_shape(Shape2DSW *p_shape, const Transform2D &p_transform) {
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Shape s;
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s.shape = p_shape;
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s.xform = p_transform;
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s.xform_inv = s.xform.affine_inverse();
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s.bpid = 0; //needs update
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s.disabled = false;
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s.one_way_collision = false;
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shapes.push_back(s);
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p_shape->add_owner(this);
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_update_shapes();
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_shapes_changed();
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}
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void CollisionObject2DSW::set_shape(int p_index, Shape2DSW *p_shape) {
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ERR_FAIL_INDEX(p_index, shapes.size());
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shapes[p_index].shape->remove_owner(this);
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shapes.write[p_index].shape = p_shape;
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p_shape->add_owner(this);
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_update_shapes();
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_shapes_changed();
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}
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void CollisionObject2DSW::set_shape_metadata(int p_index, const Variant &p_metadata) {
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ERR_FAIL_INDEX(p_index, shapes.size());
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shapes.write[p_index].metadata = p_metadata;
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}
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void CollisionObject2DSW::set_shape_transform(int p_index, const Transform2D &p_transform) {
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ERR_FAIL_INDEX(p_index, shapes.size());
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shapes.write[p_index].xform = p_transform;
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shapes.write[p_index].xform_inv = p_transform.affine_inverse();
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_update_shapes();
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_shapes_changed();
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}
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void CollisionObject2DSW::set_shape_as_disabled(int p_idx, bool p_disabled) {
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ERR_FAIL_INDEX(p_idx, shapes.size());
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CollisionObject2DSW::Shape &shape = shapes.write[p_idx];
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if (shape.disabled == p_disabled)
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return;
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shape.disabled = p_disabled;
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if (!space)
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return;
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if (p_disabled && shape.bpid != 0) {
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space->get_broadphase()->remove(shape.bpid);
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shape.bpid = 0;
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_update_shapes();
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} else if (!p_disabled && shape.bpid == 0) {
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_update_shapes(); // automatically adds shape with bpid == 0
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}
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}
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void CollisionObject2DSW::remove_shape(Shape2DSW *p_shape) {
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//remove a shape, all the times it appears
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for (int i = 0; i < shapes.size(); i++) {
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if (shapes[i].shape == p_shape) {
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remove_shape(i);
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i--;
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}
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}
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}
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void CollisionObject2DSW::remove_shape(int p_index) {
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//remove anything from shape to be erased to end, so subindices don't change
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ERR_FAIL_INDEX(p_index, shapes.size());
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for (int i = p_index; i < shapes.size(); i++) {
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if (shapes[i].bpid == 0)
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continue;
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//should never get here with a null owner
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space->get_broadphase()->remove(shapes[i].bpid);
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shapes.write[i].bpid = 0;
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}
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shapes[p_index].shape->remove_owner(this);
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shapes.remove(p_index);
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_update_shapes();
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_shapes_changed();
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}
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void CollisionObject2DSW::_set_static(bool p_static) {
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if (_static == p_static)
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return;
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_static = p_static;
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if (!space)
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return;
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for (int i = 0; i < get_shape_count(); i++) {
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const Shape &s = shapes[i];
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if (s.bpid > 0) {
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space->get_broadphase()->set_static(s.bpid, _static);
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}
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}
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}
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void CollisionObject2DSW::_unregister_shapes() {
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for (int i = 0; i < shapes.size(); i++) {
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Shape &s = shapes.write[i];
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if (s.bpid > 0) {
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space->get_broadphase()->remove(s.bpid);
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s.bpid = 0;
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}
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}
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}
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void CollisionObject2DSW::_update_shapes() {
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if (!space)
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return;
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for (int i = 0; i < shapes.size(); i++) {
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Shape &s = shapes.write[i];
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if (s.disabled)
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continue;
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if (s.bpid == 0) {
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s.bpid = space->get_broadphase()->create(this, i);
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space->get_broadphase()->set_static(s.bpid, _static);
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}
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//not quite correct, should compute the next matrix..
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Rect2 shape_aabb = s.shape->get_aabb();
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Transform2D xform = transform * s.xform;
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shape_aabb = xform.xform(shape_aabb);
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s.aabb_cache = shape_aabb;
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s.aabb_cache = s.aabb_cache.grow((s.aabb_cache.size.x + s.aabb_cache.size.y) * 0.5 * 0.05);
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space->get_broadphase()->move(s.bpid, s.aabb_cache);
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}
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}
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void CollisionObject2DSW::_update_shapes_with_motion(const Vector2 &p_motion) {
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if (!space)
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return;
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for (int i = 0; i < shapes.size(); i++) {
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Shape &s = shapes.write[i];
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if (s.disabled)
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continue;
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if (s.bpid == 0) {
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s.bpid = space->get_broadphase()->create(this, i);
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space->get_broadphase()->set_static(s.bpid, _static);
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}
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//not quite correct, should compute the next matrix..
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Rect2 shape_aabb = s.shape->get_aabb();
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Transform2D xform = transform * s.xform;
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shape_aabb = xform.xform(shape_aabb);
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shape_aabb = shape_aabb.merge(Rect2(shape_aabb.position + p_motion, shape_aabb.size)); //use motion
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s.aabb_cache = shape_aabb;
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space->get_broadphase()->move(s.bpid, shape_aabb);
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}
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}
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void CollisionObject2DSW::_set_space(Space2DSW *p_space) {
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if (space) {
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space->remove_object(this);
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for (int i = 0; i < shapes.size(); i++) {
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Shape &s = shapes.write[i];
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if (s.bpid) {
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space->get_broadphase()->remove(s.bpid);
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s.bpid = 0;
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}
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}
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}
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space = p_space;
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if (space) {
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space->add_object(this);
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_update_shapes();
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}
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}
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void CollisionObject2DSW::_shape_changed() {
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_update_shapes();
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_shapes_changed();
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}
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CollisionObject2DSW::CollisionObject2DSW(Type p_type) {
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_static = true;
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type = p_type;
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space = NULL;
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instance_id = 0;
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canvas_instance_id = 0;
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collision_mask = 1;
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collision_layer = 1;
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pickable = true;
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}
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