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godot/scene/2d/collision_shape_2d.cpp

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/*************************************************************************/
/* collision_shape_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 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_shape_2d.h"
#include "collision_object_2d.h"
#include "scene/resources/capsule_shape_2d.h"
#include "scene/resources/circle_shape_2d.h"
#include "scene/resources/concave_polygon_shape_2d.h"
#include "scene/resources/convex_polygon_shape_2d.h"
#include "scene/resources/rectangle_shape_2d.h"
#include "scene/resources/segment_shape_2d.h"
#include "scene/resources/shape_line_2d.h"
void CollisionShape2D::_add_to_collision_object(Object *p_obj) {
if (unparenting)
return;
CollisionObject2D *co = p_obj->cast_to<CollisionObject2D>();
ERR_FAIL_COND(!co);
update_shape_index = co->get_shape_count();
co->add_shape(shape, get_transform());
if (trigger)
co->set_shape_as_trigger(co->get_shape_count() - 1, true);
}
void CollisionShape2D::_shape_changed() {
update();
_update_parent();
}
void CollisionShape2D::_update_xform_in_parent() {
if (update_shape_index >= 0) {
CollisionObject2D *co = get_parent()->cast_to<CollisionObject2D>();
if (co) {
co->set_shape_transform(update_shape_index, get_transform());
}
}
}
void CollisionShape2D::_update_parent() {
Node *parent = get_parent();
if (!parent)
return;
CollisionObject2D *co = parent->cast_to<CollisionObject2D>();
if (!co)
return;
co->_update_shapes_from_children();
}
void CollisionShape2D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
unparenting = false;
can_update_body = get_tree()->is_editor_hint();
if (!get_tree()->is_editor_hint()) {
_update_xform_in_parent();
//display above all else
set_z_as_relative(false);
set_z(VS::CANVAS_ITEM_Z_MAX - 1);
}
} break;
case NOTIFICATION_LOCAL_TRANSFORM_CHANGED: {
if (!is_inside_tree())
break;
if (can_update_body) {
_update_parent();
} else {
_update_xform_in_parent();
}
} break;
case NOTIFICATION_EXIT_TREE: {
can_update_body = false;
} break;
/*
case NOTIFICATION_TRANSFORM_CHANGED: {
if (!is_inside_scene())
break;
_update_parent();
} break;*/
case NOTIFICATION_DRAW: {
if (!get_tree()->is_editor_hint() && !get_tree()->is_debugging_collisions_hint()) {
break;
}
if (!shape.is_valid()) {
break;
}
rect = Rect2();
Color draw_col = get_tree()->get_debug_collisions_color();
shape->draw(get_canvas_item(), draw_col);
rect = shape->get_rect();
rect = rect.grow(3);
} break;
case NOTIFICATION_UNPARENTED: {
unparenting = true;
_update_parent();
} break;
}
}
void CollisionShape2D::set_shape(const Ref<Shape2D> &p_shape) {
if (shape.is_valid())
shape->disconnect("changed", this, "_shape_changed");
shape = p_shape;
update();
if (is_inside_tree() && can_update_body)
_update_parent();
if (is_inside_tree() && !can_update_body && update_shape_index >= 0) {
CollisionObject2D *co = get_parent()->cast_to<CollisionObject2D>();
if (co) {
co->set_shape(update_shape_index, p_shape);
}
}
if (shape.is_valid())
shape->connect("changed", this, "_shape_changed");
update_configuration_warning();
}
Ref<Shape2D> CollisionShape2D::get_shape() const {
return shape;
}
Rect2 CollisionShape2D::get_item_rect() const {
return rect;
}
void CollisionShape2D::set_trigger(bool p_trigger) {
trigger = p_trigger;
if (can_update_body) {
_update_parent();
} else if (is_inside_tree() && update_shape_index >= 0) {
CollisionObject2D *co = get_parent()->cast_to<CollisionObject2D>();
if (co) {
co->set_shape_as_trigger(update_shape_index, p_trigger);
}
}
}
bool CollisionShape2D::is_trigger() const {
return trigger;
}
void CollisionShape2D::_set_update_shape_index(int p_index) {
update_shape_index = p_index;
}
int CollisionShape2D::_get_update_shape_index() const {
return update_shape_index;
}
String CollisionShape2D::get_configuration_warning() const {
if (!get_parent()->cast_to<CollisionObject2D>()) {
return TTR("CollisionShape2D only serves to provide a collision shape to a CollisionObject2D derived node. Please only use it as a child of Area2D, StaticBody2D, RigidBody2D, KinematicBody2D, etc. to give them a shape.");
}
if (!shape.is_valid()) {
return TTR("A shape must be provided for CollisionShape2D to function. Please create a shape resource for it!");
}
return String();
}
void CollisionShape2D::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_shape", "shape"), &CollisionShape2D::set_shape);
ObjectTypeDB::bind_method(_MD("get_shape"), &CollisionShape2D::get_shape);
ObjectTypeDB::bind_method(_MD("_shape_changed"), &CollisionShape2D::_shape_changed);
ObjectTypeDB::bind_method(_MD("_add_to_collision_object"), &CollisionShape2D::_add_to_collision_object);
ObjectTypeDB::bind_method(_MD("set_trigger", "enable"), &CollisionShape2D::set_trigger);
ObjectTypeDB::bind_method(_MD("is_trigger"), &CollisionShape2D::is_trigger);
ObjectTypeDB::bind_method(_MD("_set_update_shape_index", "index"), &CollisionShape2D::_set_update_shape_index);
ObjectTypeDB::bind_method(_MD("_get_update_shape_index"), &CollisionShape2D::_get_update_shape_index);
ObjectTypeDB::bind_method(_MD("get_collision_object_shape_index"), &CollisionShape2D::get_collision_object_shape_index);
ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape2D"), _SCS("set_shape"), _SCS("get_shape"));
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "trigger"), _SCS("set_trigger"), _SCS("is_trigger"));
ADD_PROPERTY(PropertyInfo(Variant::INT, "_update_shape_index", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), _SCS("_set_update_shape_index"), _SCS("_get_update_shape_index"));
}
CollisionShape2D::CollisionShape2D() {
rect = Rect2(-Point2(10, 10), Point2(20, 20));
set_notify_local_transform(true);
trigger = false;
unparenting = false;
can_update_body = false;
update_shape_index = -1;
}
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