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path: root/src/guiVolumeChange.cpp
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/*
Part of Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2013 Ciaran Gultnieks <ciaran@ciarang.com>
Copyright (C) 2013 RealBadAngel, Maciej Kasatkin <mk@realbadangel.pl>

Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#include "guiVolumeChange.h"
#include "debug.h"
#include "serialization.h"
#include <string>
#include <IGUICheckBox.h>
#include <IGUIButton.h>
#include <IGUIScrollBar.h>
#include <IGUIStaticText.h>
#include <IGUIFont.h>
#include "main.h"

#include "gettext.h"

const int ID_soundText1 = 263;
const int ID_soundText2 = 264;
const int ID_soundExitButton = 265;
const int ID_soundSlider = 266;

GUIVolumeChange::GUIVolumeChange(gui::IGUIEnvironment* env,
		gui::IGUIElement* parent, s32 id,
		IMenuManager *menumgr,
		Client* client
):
	GUIModalMenu(env, parent, id, menumgr),
	m_client(client)
{
}

GUIVolumeChange::~GUIVolumeChange()
{
	removeChildren();
}

void GUIVolumeChange::removeChildren()
{
	{
		gui::IGUIElement *e = getElementFromId(ID_soundText1);
		if(e != NULL)
			e->remove();
	}
	{
		gui::IGUIElement *e = getElementFromId(ID_soundText2);
		if(e != NULL)
			e->remove();
	}
	{
		gui::IGUIElement *e = getElementFromId(ID_soundExitButton);
		if(e != NULL)
			e->remove();
	}
	{
		gui::IGUIElement *e = getElementFromId(ID_soundSlider);
		if(e != NULL)
			e->remove();
	}
}

void GUIVolumeChange::regenerateGui(v2u32 screensize)
{
	/*
		Remove stuff
	*/
	removeChildren();
	
	/*
		Calculate new sizes and positions
	*/
	core::rect<s32> rect(
			screensize.X/2 - 380/2,
			screensize.Y/2 - 200/2,
			screensize.X/2 + 380/2,
			screensize.Y/2 + 200/2
	);
	
	DesiredRect = rect;
	recalculateAbsolutePosition(false);

	v2s32 size = rect.getSize();
	v2s32 topleft_client(40, 0);
	v2s32 size_client = size - v2s32(40, 0);
	int volume=(int)(g_settings->getFloat("sound_volume")*100);
	/*
		Add stuff
	*/
	changeCtype("");
	{
		core::rect<s32> rect(0, 0, 120, 20);
		rect = rect + v2s32(size.X/2-60, size.Y/2-35);
		Environment->addStaticText(wgettext("Sound Volume: "), rect, false,
				true, this, ID_soundText1);
	}
	{
		core::rect<s32> rect(0, 0, 30, 20);
		rect = rect + v2s32(size.X/2+40, size.Y/2-35);
		Environment->addStaticText(core::stringw(volume).c_str(), rect, false,
				true, this, ID_soundText2);
	}
	{
		core::rect<s32> rect(0, 0, 80, 30);
		rect = rect + v2s32(size.X/2-80/2, size.Y/2+55);
		Environment->addButton(rect, this, ID_soundExitButton,
			wgettext("Exit"));
	}
	{
		core::rect<s32> rect(0, 0, 300, 20);
		rect = rect + v2s32(size.X/2-150, size.Y/2);
		gui::IGUIScrollBar *e = Environment->addScrollBar(true,
			rect, this, ID_soundSlider);
		e->setMax(100);
		e->setPos(volume);
	}
	changeCtype("");
}

void GUIVolumeChange::drawMenu()
{
	gui::IGUISkin* skin = Environment->getSkin();
	if (!skin)
		return;
	video::IVideoDriver* driver = Environment->getVideoDriver();
	video::SColor bgcolor(140,0,0,0);
	driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);
	gui::IGUIElement::draw();
}

bool GUIVolumeChange::OnEvent(const SEvent& event)
{
	if(event.EventType==EET_KEY_INPUT_EVENT)
	{
		if(event.KeyInput.Key==KEY_ESCAPE && event.KeyInput.PressedDown)
		{
			quitMenu();
			return true;
		}
		if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
		{
			quitMenu();
			return true;
		}
	}
	if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
		{
			if (event.GUIEvent.Caller->getID() == ID_soundExitButton)
				{
					quitMenu();
					return true;
				}
		}
	if(event.GUIEvent.EventType==gui::EGET_SCROLL_BAR_CHANGED)
		{
		if (event.GUIEvent.Caller->getID() == ID_soundSlider)
			{
				s32 pos = ((gui::IGUIScrollBar*)event.GUIEvent.Caller)->getPos();
				g_settings->setFloat("sound_volume",(float)pos/100);
				gui::IGUIElement *e = getElementFromId(ID_soundText2);
				e->setText( core::stringw(pos).c_str() );
				return true;
			}
		}
	return Parent ? Parent->OnEvent(event) : false;
}

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "mapblock.h"

#include <sstream>
#include "map.h"
// For g_settings
#include "main.h"
#include "light.h"
#include "nodedef.h"
#include "nodemetadata.h"
#include "gamedef.h"
#include "log.h"
#include "nameidmapping.h"
#include "content_mapnode.h" // For legacy name-id mapping
#include "content_nodemeta.h" // For legacy deserialization
#ifndef SERVER
#include "mapblock_mesh.h"
#endif
#include "util/string.h"
#include "util/serialize.h"

#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"

/*
	MapBlock
*/

MapBlock::MapBlock(Map *parent, v3s16 pos, IGameDef *gamedef, bool dummy):
		m_parent(parent),
		m_pos(pos),
		m_gamedef(gamedef),
		m_modified(MOD_STATE_WRITE_NEEDED),
		m_modified_reason("initial"),
		m_modified_reason_too_long(false),
		is_underground(false),
		m_lighting_expired(true),
		m_day_night_differs(false),
		m_day_night_differs_expired(true),
		m_generated(false),
		m_timestamp(BLOCK_TIMESTAMP_UNDEFINED),
		m_disk_timestamp(BLOCK_TIMESTAMP_UNDEFINED),
		m_usage_timer(0),
		m_refcount(0)
{
	data = NULL;
	if(dummy == false)
		reallocate();
	
#ifndef SERVER
	//mesh_mutex.Init();
	mesh = NULL;
#endif
}

MapBlock::~MapBlock()
{
#ifndef SERVER
	{
		//JMutexAutoLock lock(mesh_mutex);
		
		if(mesh)
		{
			delete mesh;
			mesh = NULL;
		}
	}
#endif

	if(data)
		delete[] data;
}

bool MapBlock::isValidPositionParent(v3s16 p)
{
	if(isValidPosition(p))
	{
		return true;
	}
	else{
		return m_parent->isValidPosition(getPosRelative() + p);
	}
}

MapNode MapBlock::getNodeParent(v3s16 p)
{
	if(isValidPosition(p) == false)
	{
		return m_parent->getNode(getPosRelative() + p);
	}
	else
	{
		if(data == NULL)
			throw InvalidPositionException();
		return data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X];
	}
}

void MapBlock::setNodeParent(v3s16 p, MapNode & n)
{
	if(isValidPosition(p) == false)
	{
		m_parent->setNode(getPosRelative() + p, n);
	}
	else
	{
		if(data == NULL)
			throw InvalidPositionException();
		data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X] = n;
	}
}

MapNode MapBlock::getNodeParentNoEx(v3s16 p)
{
	if(isValidPosition(p) == false)
	{
		try{
			return m_parent->getNode(getPosRelative() + p);
		}
		catch(InvalidPositionException &e)
		{
			return MapNode(CONTENT_IGNORE);
		}
	}
	else
	{
		if(data == NULL)
		{
			return MapNode(CONTENT_IGNORE);
		}
		return data[p.Z*MAP_BLOCKSIZE*MAP_BLOCKSIZE + p.Y*MAP_BLOCKSIZE + p.X];
	}
}

/*
	Propagates sunlight down through the block.
	Doesn't modify nodes that are not affected by sunlight.
	
	Returns false if sunlight at bottom block is invalid.
	Returns true if sunlight at bottom block is valid.
	Returns true if bottom block doesn't exist.

	If there is a block above, continues from it.
	If there is no block above, assumes there is sunlight, unless
	is_underground is set or highest node is water.

	All sunlighted nodes are added to light_sources.

	if remove_light==true, sets non-sunlighted nodes black.

	if black_air_left!=NULL, it is set to true if non-sunlighted
	air is left in block.
*/
bool MapBlock::propagateSunlight(core::map<v3s16, bool> & light_sources,
		bool remove_light, bool *black_air_left)
{
	INodeDefManager *nodemgr = m_gamedef->ndef();

	// Whether the sunlight at the top of the bottom block is valid
	bool block_below_is_valid = true;
	
	v3s16 pos_relative = getPosRelative();
	
	for(s16 x=0; x<MAP_BLOCKSIZE; x++)
	{
		for(s16 z=0; z<MAP_BLOCKSIZE; z++)
		{
#if 1
			bool no_sunlight = false;
			bool no_top_block = false;
			// Check if node above block has sunlight
			try{
				MapNode n = getNodeParent(v3s16(x, MAP_BLOCKSIZE, z));
				if(n.getContent() == CONTENT_IGNORE)
				{
					// Trust heuristics
					no_sunlight = is_underground;
				}
				else if(n.getLight(LIGHTBANK_DAY, m_gamedef->ndef()) != LIGHT_SUN)
				{
					no_sunlight = true;
				}
			}
			catch(InvalidPositionException &e)
			{
				no_top_block = true;
				
				// NOTE: This makes over-ground roofed places sunlighted
				// Assume sunlight, unless is_underground==true
				if(is_underground)
				{
					no_sunlight = true;
				}
				else
				{
					MapNode n = getNode(v3s16(x, MAP_BLOCKSIZE-1, z));
					if(m_gamedef->ndef()->get(n).sunlight_propagates == false)
					{
						no_sunlight = true;
					}
				}
				// NOTE: As of now, this just would make everything dark.
				// No sunlight here
				//no_sunlight = true;
			}
#endif
#if 0 // Doesn't work; nothing gets light.
			bool no_sunlight = true;
			bool no_top_block = false;
			// Check if node above block has sunlight
			try{
				MapNode n = getNodeParent(v3s16(x, MAP_BLOCKSIZE, z));
				if(n.getLight(LIGHTBANK_DAY) == LIGHT_SUN)
				{
					no_sunlight = false;
				}
			}
			catch(InvalidPositionException &e)
			{
				no_top_block = true;
			}
#endif

			/*std::cout<<"("<<x<<","<<z<<"): "
					<<"no_top_block="<<no_top_block
					<<", is_underground="<<is_underground
					<<", no_sunlight="<<no_sunlight
					<<std::endl;*/
		
			s16 y = MAP_BLOCKSIZE-1;
			
			// This makes difference to diminishing in water.
			bool stopped_to_solid_object = false;
			
			u8 current_light = no_sunlight ? 0 : LIGHT_SUN;

			for(; y >= 0; y--)
			{
				v3s16 pos(x, y, z);
				MapNode &n = getNodeRef(pos);
				
				if(current_light == 0)
				{
					// Do nothing
				}
				else if(current_light == LIGHT_SUN && nodemgr->get(n).sunlight_propagates)
				{
					// Do nothing: Sunlight is continued
				}
				else if(nodemgr->get(n).light_propagates == false)
				{
					// A solid object is on the way.
					stopped_to_solid_object = true;
					
					// Light stops.
					current_light = 0;
				}
				else
				{
					// Diminish light
					current_light = diminish_light(current_light);
				}

				u8 old_light = n.getLight(LIGHTBANK_DAY, nodemgr);

				if(current_light > old_light || remove_light)
				{
					n.setLight(LIGHTBANK_DAY, current_light, nodemgr);
				}
				
				if(diminish_light(current_light) != 0)
				{
					light_sources.insert(pos_relative + pos, true);
				}

				if(current_light == 0 && stopped_to_solid_object)
				{
					if(black_air_left)
					{
						*black_air_left = true;
					}
				}
			}

			// Whether or not the block below should see LIGHT_SUN
			bool sunlight_should_go_down = (current_light == LIGHT_SUN);

			/*
				If the block below hasn't already been marked invalid:

				Check if the node below the block has proper sunlight at top.
				If not, the block below is invalid.
				
				Ignore non-transparent nodes as they always have no light
			*/
			try
			{
			if(block_below_is_valid)
			{
				MapNode n = getNodeParent(v3s16(x, -1, z));
				if(nodemgr->get(n).light_propagates)
				{
					if(n.getLight(LIGHTBANK_DAY, nodemgr) == LIGHT_SUN
							&& sunlight_should_go_down == false)
						block_below_is_valid = false;
					else if(n.getLight(LIGHTBANK_DAY, nodemgr) != LIGHT_SUN
							&& sunlight_should_go_down == true)
						block_below_is_valid = false;
				}
			}//if
			}//try
			catch(InvalidPositionException &e)
			{
				/*std::cout<<"InvalidBlockException for bottom block node"
						<<std::endl;*/
				// Just no block below, no need to panic.
			}
		}
	}

	return block_below_is_valid;
}


void MapBlock::copyTo(VoxelManipulator &dst)
{
	v3s16 data_size(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE);
	VoxelArea data_area(v3s16(0,0,0), data_size - v3s16(1,1,1));
	
	// Copy from data to VoxelManipulator