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godot/scene/2d/parallax_background.cpp
Rémi Verschelde 5dbf1809c6 A Whole New World (clang-format edition) 
I can show you the code
Pretty, with proper whitespace
Tell me, coder, now when did
You last write readable code?

I can open your eyes
Make you see your bad indent
Force you to respect the style
The core devs agreed upon

A whole new world
A new fantastic code format
A de facto standard
With some sugar
Enforced with clang-format

A whole new world
A dazzling style we all dreamed of
And when we read it through
It's crystal clear
That now we're in a whole new world of code
2017-03-05 16:44:50 +01:00

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6.9 KiB
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/*************************************************************************/
/* parallax_background.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 "parallax_background.h"
#include "parallax_layer.h"
void ParallaxBackground::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
group_name = "__cameras_" + itos(get_viewport().get_id());
add_to_group(group_name);
} break;
case NOTIFICATION_EXIT_TREE: {
remove_from_group(group_name);
} break;
}
}
void ParallaxBackground::_camera_moved(const Transform2D &p_transform) {
set_scroll_offset(p_transform.get_origin());
set_scroll_scale(p_transform.get_scale().dot(Vector2(0.5, 0.5)));
}
void ParallaxBackground::set_scroll_scale(float p_scale) {
scale = p_scale;
}
float ParallaxBackground::get_scroll_scale() const {
return scale;
}
void ParallaxBackground::set_scroll_offset(const Point2 &p_ofs) {
offset = p_ofs;
_update_scroll();
}
void ParallaxBackground::_update_scroll() {
if (!is_inside_tree())
return;
Vector2 ofs = base_offset + offset * base_scale;
Size2 vps = get_viewport_size();
ofs = -ofs;
if (limit_begin.x < limit_end.x) {
if (ofs.x < limit_begin.x)
ofs.x = limit_begin.x;
else if (ofs.x + vps.x > limit_end.x)
ofs.x = limit_end.x - vps.x;
}
if (limit_begin.y < limit_end.y) {
if (ofs.y < limit_begin.y)
ofs.y = limit_begin.y;
else if (ofs.y + vps.y > limit_end.y)
ofs.y = limit_end.y - vps.y;
}
ofs = -ofs;
final_offset = ofs;
for (int i = 0; i < get_child_count(); i++) {
ParallaxLayer *l = get_child(i)->cast_to<ParallaxLayer>();
if (!l)
continue;
if (ignore_camera_zoom)
l->set_base_offset_and_scale(ofs, 1.0);
else
l->set_base_offset_and_scale(ofs, scale);
}
}
Point2 ParallaxBackground::get_scroll_offset() const {
return offset;
}
void ParallaxBackground::set_scroll_base_offset(const Point2 &p_ofs) {
base_offset = p_ofs;
_update_scroll();
}
Point2 ParallaxBackground::get_scroll_base_offset() const {
return base_offset;
}
void ParallaxBackground::set_scroll_base_scale(const Point2 &p_ofs) {
base_scale = p_ofs;
_update_scroll();
}
Point2 ParallaxBackground::get_scroll_base_scale() const {
return base_scale;
}
void ParallaxBackground::set_limit_begin(const Point2 &p_ofs) {
limit_begin = p_ofs;
_update_scroll();
}
Point2 ParallaxBackground::get_limit_begin() const {
return limit_begin;
}
void ParallaxBackground::set_limit_end(const Point2 &p_ofs) {
limit_end = p_ofs;
_update_scroll();
}
Point2 ParallaxBackground::get_limit_end() const {
return limit_end;
}
void ParallaxBackground::set_ignore_camera_zoom(bool ignore) {
ignore_camera_zoom = ignore;
}
bool ParallaxBackground::is_ignore_camera_zoom() {
return ignore_camera_zoom;
}
Vector2 ParallaxBackground::get_final_offset() const {
return final_offset;
}
void ParallaxBackground::_bind_methods() {
ClassDB::bind_method(D_METHOD("_camera_moved"), &ParallaxBackground::_camera_moved);
ClassDB::bind_method(D_METHOD("set_scroll_offset", "ofs"), &ParallaxBackground::set_scroll_offset);
ClassDB::bind_method(D_METHOD("get_scroll_offset"), &ParallaxBackground::get_scroll_offset);
ClassDB::bind_method(D_METHOD("set_scroll_base_offset", "ofs"), &ParallaxBackground::set_scroll_base_offset);
ClassDB::bind_method(D_METHOD("get_scroll_base_offset"), &ParallaxBackground::get_scroll_base_offset);
ClassDB::bind_method(D_METHOD("set_scroll_base_scale", "scale"), &ParallaxBackground::set_scroll_base_scale);
ClassDB::bind_method(D_METHOD("get_scroll_base_scale"), &ParallaxBackground::get_scroll_base_scale);
ClassDB::bind_method(D_METHOD("set_limit_begin", "ofs"), &ParallaxBackground::set_limit_begin);
ClassDB::bind_method(D_METHOD("get_limit_begin"), &ParallaxBackground::get_limit_begin);
ClassDB::bind_method(D_METHOD("set_limit_end", "ofs"), &ParallaxBackground::set_limit_end);
ClassDB::bind_method(D_METHOD("get_limit_end"), &ParallaxBackground::get_limit_end);
ClassDB::bind_method(D_METHOD("set_ignore_camera_zoom", "ignore"), &ParallaxBackground::set_ignore_camera_zoom);
ClassDB::bind_method(D_METHOD("is_ignore_camera_zoom"), &ParallaxBackground::is_ignore_camera_zoom);
ADD_GROUP("Scroll", "scroll_");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scroll_offset"), "set_scroll_offset", "get_scroll_offset");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scroll_base_offset"), "set_scroll_base_offset", "get_scroll_base_offset");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scroll_base_scale"), "set_scroll_base_scale", "get_scroll_base_scale");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scroll_limit_begin"), "set_limit_begin", "get_limit_begin");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "scroll_limit_end"), "set_limit_end", "get_limit_end");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scroll_ignore_camera_zoom"), "set_ignore_camera_zoom", "is_ignore_camera_zoom");
}
ParallaxBackground::ParallaxBackground() {
base_scale = Vector2(1, 1);
scale = 1.0;
set_layer(-1); //behind all by default
}
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