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godot/scene/2d/collision_shape_2d.cpp
Rémi Verschelde d8223ffa75 Welcome in 2017, dear changelog reader! 
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!

(cherry picked from commit c7bc44d5ad)
2017-01-12 19:15:30 +01:00

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/*************************************************************************/
/* collision_shape_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* 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/segment_shape_2d.h"
#include "scene/resources/shape_line_2d.h"
#include "scene/resources/circle_shape_2d.h"
#include "scene/resources/rectangle_shape_2d.h"
#include "scene/resources/capsule_shape_2d.h"
#include "scene/resources/convex_polygon_shape_2d.h"
#include "scene/resources/concave_polygon_shape_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_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()) {
//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 if (update_shape_index>=0){
CollisionObject2D *co = get_parent()->cast_to<CollisionObject2D>();
if (co) {
co->set_shape_transform(update_shape_index,get_transform());
}
}
} 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");
}
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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