godot/scene/2d/collision_shape_2d.cpp
Pedro J. Estébanez aefedb73fc Update collision shapes data on tree entered
This is needed because the final startup values for shapes may change between parenting and entering the scene tree. For instance, if the collision shape belongs to a inherited scene.

Fixes #13835.
2018-01-11 21:08:58 +01:00

251 lines
7.9 KiB
C++

/*************************************************************************/
/* collision_shape_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
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#include "collision_shape_2d.h"
#include "collision_object_2d.h"
#include "engine.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::_shape_changed() {
update();
}
void CollisionShape2D::_update_in_shape_owner(bool p_xform_only) {
parent->shape_owner_set_transform(owner_id, get_transform());
if (p_xform_only)
return;
parent->shape_owner_set_disabled(owner_id, disabled);
parent->shape_owner_set_one_way_collision(owner_id, one_way_collision);
}
void CollisionShape2D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_PARENTED: {
parent = Object::cast_to<CollisionObject2D>(get_parent());
if (parent) {
owner_id = parent->create_shape_owner(this);
if (shape.is_valid()) {
parent->shape_owner_add_shape(owner_id, shape);
}
_update_in_shape_owner();
}
/*if (Engine::get_singleton()->is_editor_hint()) {
//display above all else
set_z_as_relative(false);
set_z_index(VS::CANVAS_ITEM_Z_MAX - 1);
}*/
} break;
case NOTIFICATION_ENTER_TREE: {
if (parent) {
_update_in_shape_owner();
}
} break;
case NOTIFICATION_LOCAL_TRANSFORM_CHANGED: {
if (parent) {
_update_in_shape_owner(true);
}
} break;
case NOTIFICATION_UNPARENTED: {
if (parent) {
parent->remove_shape_owner(owner_id);
}
owner_id = 0;
parent = NULL;
} break;
/*
case NOTIFICATION_TRANSFORM_CHANGED: {
if (!is_inside_scene())
break;
_update_parent();
} break;*/
case NOTIFICATION_DRAW: {
if (!Engine::get_singleton()->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();
if (disabled) {
float g = draw_col.gray();
draw_col.r = g;
draw_col.g = g;
draw_col.b = g;
}
shape->draw(get_canvas_item(), draw_col);
rect = shape->get_rect();
rect = rect.grow(3);
if (one_way_collision) {
Color dcol = get_tree()->get_debug_collisions_color(); //0.9,0.2,0.2,0.4);
dcol.a = 1.0;
Vector2 line_to(0, 20);
draw_line(Vector2(), line_to, dcol, 3);
Vector<Vector2> pts;
float tsize = 8;
pts.push_back(line_to + (Vector2(0, tsize)));
pts.push_back(line_to + (Vector2(0.707 * tsize, 0)));
pts.push_back(line_to + (Vector2(-0.707 * tsize, 0)));
Vector<Color> cols;
for (int i = 0; i < 3; i++)
cols.push_back(dcol);
draw_primitive(pts, cols, Vector<Vector2>()); //small arrow
}
} 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 (parent) {
parent->shape_owner_clear_shapes(owner_id);
if (shape.is_valid()) {
parent->shape_owner_add_shape(owner_id, shape);
}
}
if (shape.is_valid())
shape->connect("changed", this, "_shape_changed");
update_configuration_warning();
}
Ref<Shape2D> CollisionShape2D::get_shape() const {
return shape;
}
Rect2 CollisionShape2D::_edit_get_rect() const {
return rect;
}
bool CollisionShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
if (!shape.is_valid())
return false;
return shape->_edit_is_selected_on_click(p_point, p_tolerance);
}
String CollisionShape2D::get_configuration_warning() const {
if (!Object::cast_to<CollisionObject2D>(get_parent())) {
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::set_disabled(bool p_disabled) {
disabled = p_disabled;
update();
if (parent) {
parent->shape_owner_set_disabled(owner_id, p_disabled);
}
}
bool CollisionShape2D::is_disabled() const {
return disabled;
}
void CollisionShape2D::set_one_way_collision(bool p_enable) {
one_way_collision = p_enable;
update();
if (parent) {
parent->shape_owner_set_one_way_collision(owner_id, p_enable);
}
}
bool CollisionShape2D::is_one_way_collision_enabled() const {
return one_way_collision;
}
void CollisionShape2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_shape", "shape"), &CollisionShape2D::set_shape);
ClassDB::bind_method(D_METHOD("get_shape"), &CollisionShape2D::get_shape);
ClassDB::bind_method(D_METHOD("set_disabled", "disabled"), &CollisionShape2D::set_disabled);
ClassDB::bind_method(D_METHOD("is_disabled"), &CollisionShape2D::is_disabled);
ClassDB::bind_method(D_METHOD("set_one_way_collision", "enabled"), &CollisionShape2D::set_one_way_collision);
ClassDB::bind_method(D_METHOD("is_one_way_collision_enabled"), &CollisionShape2D::is_one_way_collision_enabled);
ClassDB::bind_method(D_METHOD("_shape_changed"), &CollisionShape2D::_shape_changed);
ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape2D"), "set_shape", "get_shape");
ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL, "disabled"), "set_disabled", "is_disabled");
ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL, "one_way_collision"), "set_one_way_collision", "is_one_way_collision_enabled");
}
CollisionShape2D::CollisionShape2D() {
rect = Rect2(-Point2(10, 10), Point2(20, 20));
set_notify_local_transform(true);
owner_id = 0;
parent = NULL;
disabled = false;
one_way_collision = false;
}