199 lines
6.3 KiB
C++
199 lines
6.3 KiB
C++
/*************************************************************************/
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/* particles_2d_editor_plugin.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) 2007-2015 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 "particles_2d_editor_plugin.h"
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#include "canvas_item_editor_plugin.h"
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#include "io/image_loader.h"
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void Particles2DEditorPlugin::edit(Object *p_object) {
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if (p_object) {
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particles=p_object->cast_to<Particles2D>();
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} else {
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particles=NULL;
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}
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}
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bool Particles2DEditorPlugin::handles(Object *p_object) const {
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return p_object->is_type("Particles2D");
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}
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void Particles2DEditorPlugin::make_visible(bool p_visible) {
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if (p_visible) {
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sep->show();
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menu->show();
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} else {
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menu->hide();
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sep->hide();
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}
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}
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void Particles2DEditorPlugin::_file_selected(const String& p_file) {
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print_line("file: "+p_file);
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int epc=epoints->get_val();
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Image img;
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Error err = ImageLoader::load_image(p_file,&img);
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ERR_EXPLAIN("Error loading image: "+p_file);
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ERR_FAIL_COND(err!=OK);
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img.convert(Image::FORMAT_GRAYSCALE_ALPHA);
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ERR_FAIL_COND(img.get_format()!=Image::FORMAT_GRAYSCALE_ALPHA);
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Size2i s = Size2(img.get_width(),img.get_height());
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ERR_FAIL_COND(s.width==0 || s.height==0);
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DVector<uint8_t> data = img.get_data();
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DVector<uint8_t>::Read r = data.read();
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Vector<Point2i> valid_positions;
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valid_positions.resize(s.width*s.height);
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int vpc=0;
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for(int i=0;i<s.width*s.height;i++) {
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uint8_t a = r[i*2+1];
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if (a>128) {
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valid_positions[vpc++]=Point2i(i%s.width,i/s.width);
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}
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}
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valid_positions.resize(vpc);
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ERR_EXPLAIN("No pixels with transparency > 128 in image..");
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ERR_FAIL_COND(valid_positions.size()==0);
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DVector<Point2> epoints;
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epoints.resize(epc);
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DVector<Point2>::Write w = epoints.write();
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Size2 extents = Size2(img.get_width()*0.5,img.get_height()*0.5);
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for(int i=0;i<epc;i++) {
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Point2 p = valid_positions[Math::rand()%vpc];
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p-=s/2;
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w[i]=p/extents;
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}
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w = DVector<Point2>::Write();
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undo_redo->create_action("Set Emission Mask");
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undo_redo->add_do_method(particles,"set_emission_points",epoints);
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undo_redo->add_do_method(particles,"set_emission_half_extents",extents);
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undo_redo->add_undo_method(particles,"set_emission_points",particles->get_emission_points());
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undo_redo->add_undo_method(particles,"set_emission_half_extents",particles->get_emission_half_extents());
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undo_redo->commit_action();
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}
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void Particles2DEditorPlugin::_menu_callback(int p_idx) {
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switch(p_idx) {
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case MENU_LOAD_EMISSION_MASK: {
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file->popup_centered_ratio();
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} break;
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case MENU_CLEAR_EMISSION_MASK: {
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undo_redo->create_action("Clear Emission Mask");
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undo_redo->add_do_method(particles,"set_emission_points",DVector<Vector2>());
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undo_redo->add_undo_method(particles,"set_emission_points",particles->get_emission_points());
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undo_redo->commit_action();
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} break;
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}
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}
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void Particles2DEditorPlugin::_notification(int p_what) {
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if (p_what==NOTIFICATION_ENTER_TREE) {
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menu->get_popup()->connect("item_pressed",this,"_menu_callback");
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menu->set_icon(menu->get_popup()->get_icon("Particles2D","EditorIcons"));
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file->connect("file_selected",this,"_file_selected");
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}
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}
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void Particles2DEditorPlugin::_bind_methods() {
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ObjectTypeDB::bind_method(_MD("_menu_callback"),&Particles2DEditorPlugin::_menu_callback);
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ObjectTypeDB::bind_method(_MD("_file_selected"),&Particles2DEditorPlugin::_file_selected);
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}
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Particles2DEditorPlugin::Particles2DEditorPlugin(EditorNode *p_node) {
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particles=NULL;
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editor=p_node;
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undo_redo=editor->get_undo_redo();
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sep = memnew( VSeparator );
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CanvasItemEditor::get_singleton()->add_control_to_menu_panel(sep);
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sep->hide();
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menu = memnew( MenuButton );
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menu->get_popup()->add_item("Load Emission Mask",MENU_LOAD_EMISSION_MASK);
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menu->get_popup()->add_item("Clear Emission Mask",MENU_CLEAR_EMISSION_MASK);
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menu->set_text("Particles");
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file = memnew(EditorFileDialog);
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add_child(file);
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List<String> ext;
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ImageLoader::get_recognized_extensions(&ext);
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for(List<String>::Element *E=ext.front();E;E=E->next()) {
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file->add_filter("*."+E->get()+"; "+E->get().to_upper());
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}
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file->set_mode(EditorFileDialog::MODE_OPEN_FILE);
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CanvasItemEditor::get_singleton()->add_control_to_menu_panel(menu);
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epoints = memnew( SpinBox );
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epoints->set_min(1);
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epoints->set_max(8192);
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epoints->set_step(1);
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epoints->set_val(512);
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file->get_vbox()->add_margin_child("Generated Point Count:",epoints);
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menu->hide();
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}
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Particles2DEditorPlugin::~Particles2DEditorPlugin()
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{
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}
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