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			148 lines
		
	
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			148 lines
		
	
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*************************************************************************/
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/*  parallax_layer.cpp                                                   */
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/*************************************************************************/
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/*                       This file is part of:                           */
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/*                           GODOT ENGINE                                */
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/*                    http://www.godotengine.org                         */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
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/*                                                                       */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the       */
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/* "Software"), to deal in the Software without restriction, including   */
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/* without limitation the rights to use, copy, modify, merge, publish,   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions:                                             */
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/*                                                                       */
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/* The above copyright notice and this permission notice shall be        */
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/* included in all copies or substantial portions of the Software.       */
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/*                                                                       */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
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/*************************************************************************/
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#include "parallax_layer.h"
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#include "parallax_background.h"
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void ParallaxLayer::set_motion_scale(const Size2& p_scale) {
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	motion_scale=p_scale;
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}
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Size2 ParallaxLayer::get_motion_scale() const {
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	return motion_scale;
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}
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void ParallaxLayer::_update_mirroring() {
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	if (!get_parent())
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		return;
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	ParallaxBackground *pb = get_parent()->cast_to<ParallaxBackground>();
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	if (pb) {
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		RID c = pb->get_world_2d()->get_canvas();
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		RID ci = get_canvas_item();
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		VisualServer::get_singleton()->canvas_set_item_mirroring(c,ci,mirroring);
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	}
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}
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void ParallaxLayer::set_mirroring(const Size2& p_mirroring) {
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	mirroring=p_mirroring;
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	_update_mirroring();
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}
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Size2 ParallaxLayer::get_mirroring() const{
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	return mirroring;
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}
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void ParallaxLayer::_notification(int p_what) {
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	switch(p_what) {
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		case NOTIFICATION_ENTER_TREE: {
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			orig_offset=get_pos();
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			orig_scale=get_scale();
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			_update_mirroring();
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		} break;
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	}
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}
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void ParallaxLayer::set_base_offset_and_scale(const Point2& p_offset,float p_scale) {
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	if (!is_inside_tree())
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		return;
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	if (get_tree()->is_editor_hint())
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		return;
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	Point2 new_ofs = ((orig_offset+p_offset)*motion_scale)*p_scale;
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	if (mirroring.x) {
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		while( new_ofs.x>=0) {
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			new_ofs.x -= mirroring.x*p_scale;
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		}
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		while(new_ofs.x < -mirroring.x*p_scale) {
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			new_ofs.x += mirroring.x*p_scale;
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		}
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	}
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	if (mirroring.y) {
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		while( new_ofs.y>=0) {
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			new_ofs.y -= mirroring.y*p_scale;
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		}
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		while(new_ofs.y < -mirroring.y*p_scale) {
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			new_ofs.y += mirroring.y*p_scale;
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		}
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	}
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	set_pos(new_ofs);
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	set_scale(Vector2(1,1)*p_scale);
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}
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String ParallaxLayer::get_configuration_warning() const {
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	if (!get_parent() || !get_parent()->cast_to<ParallaxBackground>()) {
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		return TTR("ParallaxLayer node only works when set as child of a ParallaxBackground node.");
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	}
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	return String();
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}
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void ParallaxLayer::_bind_methods() {
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	ObjectTypeDB::bind_method(_MD("set_motion_scale","scale"),&ParallaxLayer::set_motion_scale);
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	ObjectTypeDB::bind_method(_MD("get_motion_scale"),&ParallaxLayer::get_motion_scale);
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	ObjectTypeDB::bind_method(_MD("set_mirroring","mirror"),&ParallaxLayer::set_mirroring);
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	ObjectTypeDB::bind_method(_MD("get_mirroring"),&ParallaxLayer::get_mirroring);
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	ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"motion/scale"),_SCS("set_motion_scale"),_SCS("get_motion_scale"));
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	ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"motion/mirroring"),_SCS("set_mirroring"),_SCS("get_mirroring"));
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}
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ParallaxLayer::ParallaxLayer()
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{
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	motion_scale=Size2(1,1);
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}
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