godot/scene/2d/collision_shape_2d.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

258 lines
8.7 KiB
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/*************************************************************************/
/* collision_shape_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 "core/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/line_shape_2d.h"
#include "scene/resources/rectangle_shape_2d.h"
#include "scene/resources/segment_shape_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);
parent->shape_owner_set_one_way_collision_margin(owner_id, one_way_collision_margin);
}
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_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.get_v();
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) {
// Draw an arrow indicating the one-way collision direction
draw_col = get_tree()->get_debug_collisions_color().inverted();
if (disabled) {
draw_col = draw_col.darkened(0.25);
}
Vector2 line_to(0, 20);
draw_line(Vector2(), line_to, draw_col, 2, true);
Vector<Vector2> pts;
float tsize = 8;
pts.push_back(line_to + (Vector2(0, tsize)));
pts.push_back(line_to + (Vector2(Math_SQRT12 * tsize, 0)));
pts.push_back(line_to + (Vector2(-Math_SQRT12 * tsize, 0)));
Vector<Color> cols;
for (int i = 0; i < 3; i++)
cols.push_back(draw_col);
draw_primitive(pts, cols, Vector<Vector2>());
}
} 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;
}
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::set_one_way_collision_margin(float p_margin) {
one_way_collision_margin = p_margin;
if (parent) {
parent->shape_owner_set_one_way_collision_margin(owner_id, one_way_collision_margin);
}
}
float CollisionShape2D::get_one_way_collision_margin() const {
return one_way_collision_margin;
}
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("set_one_way_collision_margin", "margin"), &CollisionShape2D::set_one_way_collision_margin);
ClassDB::bind_method(D_METHOD("get_one_way_collision_margin"), &CollisionShape2D::get_one_way_collision_margin);
ClassDB::bind_method(D_METHOD("_shape_changed"), &CollisionShape2D::_shape_changed);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape2D"), "set_shape", "get_shape");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "disabled"), "set_disabled", "is_disabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_way_collision"), "set_one_way_collision", "is_one_way_collision_enabled");
ADD_PROPERTY(PropertyInfo(Variant::REAL, "one_way_collision_margin", PROPERTY_HINT_RANGE, "0,128,0.1"), "set_one_way_collision_margin", "get_one_way_collision_margin");
}
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;
one_way_collision_margin = 1.0;
}