godot/scene/2d/parallax_layer.cpp
Hein-Pieter van Braam 411ee71b4d Rename the _MD macro to D_METHOD
This new name also makes its purpose a little clearer

This is a step towards fixing #56
2017-02-13 12:50:02 +01:00

173 lines
5.4 KiB
C++

/*************************************************************************/
/* parallax_layer.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_layer.h"
#include "parallax_background.h"
void ParallaxLayer::set_motion_scale(const Size2& p_scale) {
motion_scale=p_scale;
ParallaxBackground *pb = get_parent()->cast_to<ParallaxBackground>();
if (is_inside_tree() && pb) {
Vector2 ofs = pb->get_final_offset();
float scale = pb->get_scroll_scale();
set_base_offset_and_scale(ofs,scale);
}
}
Size2 ParallaxLayer::get_motion_scale() const {
return motion_scale;
}
void ParallaxLayer::set_motion_offset(const Size2& p_offset) {
motion_offset=p_offset;
ParallaxBackground *pb = get_parent()->cast_to<ParallaxBackground>();
if (is_inside_tree() && pb) {
Vector2 ofs = pb->get_final_offset();
float scale = pb->get_scroll_scale();
set_base_offset_and_scale(ofs,scale);
}
}
Size2 ParallaxLayer::get_motion_offset() const {
return motion_offset;
}
void ParallaxLayer::_update_mirroring() {
if (!get_parent())
return;
ParallaxBackground *pb = get_parent()->cast_to<ParallaxBackground>();
if (pb) {
RID c = pb->get_world_2d()->get_canvas();
RID ci = get_canvas_item();
VisualServer::get_singleton()->canvas_set_item_mirroring(c,ci,mirroring);
}
}
void ParallaxLayer::set_mirroring(const Size2& p_mirroring) {
mirroring=p_mirroring;
if (mirroring.x<0)
mirroring.x=0;
if (mirroring.y<0)
mirroring.y=0;
_update_mirroring();
}
Size2 ParallaxLayer::get_mirroring() const{
return mirroring;
}
void ParallaxLayer::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_TREE: {
orig_offset=get_position();
orig_scale=get_scale();
_update_mirroring();
} break;
}
}
void ParallaxLayer::set_base_offset_and_scale(const Point2& p_offset,float p_scale) {
if (!is_inside_tree())
return;
if (get_tree()->is_editor_hint())
return;
Point2 new_ofs = ((orig_offset+p_offset)*motion_scale)*p_scale+motion_offset;
if (mirroring.x) {
double den = mirroring.x*p_scale;
new_ofs.x -= den*ceil(new_ofs.x/den);
}
if (mirroring.y) {
double den = mirroring.y*p_scale;
new_ofs.y -= den*ceil(new_ofs.y/den);
}
set_position(new_ofs);
set_scale(Vector2(1,1)*p_scale);
}
String ParallaxLayer::get_configuration_warning() const {
if (!get_parent() || !get_parent()->cast_to<ParallaxBackground>()) {
return TTR("ParallaxLayer node only works when set as child of a ParallaxBackground node.");
}
return String();
}
void ParallaxLayer::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_motion_scale","scale"),&ParallaxLayer::set_motion_scale);
ClassDB::bind_method(D_METHOD("get_motion_scale"),&ParallaxLayer::get_motion_scale);
ClassDB::bind_method(D_METHOD("set_motion_offset","offset"),&ParallaxLayer::set_motion_offset);
ClassDB::bind_method(D_METHOD("get_motion_offset"),&ParallaxLayer::get_motion_offset);
ClassDB::bind_method(D_METHOD("set_mirroring","mirror"),&ParallaxLayer::set_mirroring);
ClassDB::bind_method(D_METHOD("get_mirroring"),&ParallaxLayer::get_mirroring);
ADD_GROUP("Motion","motion_");
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"motion_scale"),"set_motion_scale","get_motion_scale");
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"motion_offset"),"set_motion_offset","get_motion_offset");
ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"motion_mirroring"),"set_mirroring","get_mirroring");
}
ParallaxLayer::ParallaxLayer()
{
motion_scale=Size2(1,1);
}