src/filesys.cpp

/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2010-2013 blue42u, Jonathon Anderson <anderjon@umail.iu.edu>
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>

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 "hud.h"
#include "settings.h"
#include "util/numeric.h"
#include "log.h"
#include "client.h"
#include "inventory.h"
#include "client/tile.h"
#include "localplayer.h"
#include "camera.h"
#include "porting.h"
#include "fontengine.h"
#include "guiscalingfilter.h"
#include "mesh.h"
#include "wieldmesh.h"
#include <IGUIStaticText.h>
#include "client/renderingengine.h"

#ifdef HAVE_TOUCHSCREENGUI
#include "touchscreengui.h"
#endif

Hud::Hud(gui::IGUIEnvironment *guienv, Client *client, LocalPlayer *player,
		Inventory *inventory)
{
	driver            = RenderingEngine::get_video_driver();
	this->guienv      = guienv;
	this->client      = client;
	this->player      = player;
	this->inventory   = inventory;

	m_hud_scaling      = g_settings->getFloat("hud_scaling");
	m_hotbar_imagesize = floor(HOTBAR_IMAGE_SIZE *
		RenderingEngine::getDisplayDensity() + 0.5f);
	m_hotbar_imagesize *= m_hud_scaling;
	m_padding = m_hotbar_imagesize / 12;

	for (unsigned int i = 0; i < 4; i++)
		hbar_colors[i] = video::SColor(255, 255, 255, 255);

	tsrc = client->getTextureSource();

	v3f crosshair_color = g_settings->getV3F("crosshair_color");
	u32 cross_r = rangelim(myround(crosshair_color.X), 0, 255);
	u32 cross_g = rangelim(myround(crosshair_color.Y), 0, 255);
	u32 cross_b = rangelim(myround(crosshair_color.Z), 0, 255);
	u32 cross_a = rangelim(g_settings->getS32("crosshair_alpha"), 0, 255);
	crosshair_argb = video::SColor(cross_a, cross_r, cross_g, cross_b);

	v3f selectionbox_color = g_settings->getV3F("selectionbox_color");
	u32 sbox_r = rangelim(myround(selectionbox_color.X), 0, 255);
	u32 sbox_g = rangelim(myround(selectionbox_color.Y), 0, 255);
	u32 sbox_b = rangelim(myround(selectionbox_color.Z), 0, 255);
	selectionbox_argb = video::SColor(255, sbox_r, sbox_g, sbox_b);

	use_crosshair_image = tsrc->isKnownSourceImage("crosshair.png");

	m_selection_boxes.clear();
	m_halo_boxes.clear();

	std::string mode_setting = g_settings->get("node_highlighting");

	if (mode_setting == "halo") {
		m_mode = HIGHLIGHT_HALO;
	} else if (mode_setting == "none") {
		m_mode = HIGHLIGHT_NONE;
	} else {
		m_mode = HIGHLIGHT_BOX;
	}

	m_selection_material.Lighting = false;

	if (g_settings->getBool("enable_shaders")) {
		IShaderSource *shdrsrc = client->getShaderSource();
		u16 shader_id = shdrsrc->getShader(
			m_mode == HIGHLIGHT_HALO ? "selection_shader" : "default_shader", 1, 1);
		m_selection_material.MaterialType = shdrsrc->getShaderInfo(shader_id).material;
	} else {
		m_selection_material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
	}

	if (m_mode == HIGHLIGHT_BOX) {
		m_selection_material.Thickness =
			rangelim(g_settings->getS16("selectionbox_width"), 1, 5);
	} else if (m_mode == HIGHLIGHT_HALO) {
		m_selection_material.setTexture(0, tsrc->getTextureForMesh("halo.png"));
		m_selection_material.setFlag(video::EMF_BACK_FACE_CULLING, true);
	} else {
		m_selection_material.MaterialType = video::EMT_SOLID;
	}
}

Hud::~Hud()
{
	if (m_selection_mesh)
		m_selection_mesh->drop();
}

void Hud::drawItem(const ItemStack &item, const core::rect<s32>& rect,
		bool selected)
{
	if (selected) {
		/* draw hihlighting around selected item */
		if (use_hotbar_selected_image) {
			core::rect<s32> imgrect2 = rect;
			imgrect2.UpperLeftCorner.X  -= (m_padding*2);
			imgrect2.UpperLeftCorner.Y  -= (m_padding*2);
			imgrect2.LowerRightCorner.X += (m_padding*2);
			imgrect2.LowerRightCorner.Y += (m_padding*2);
				video::ITexture *texture = tsrc->getTexture(hotbar_selected_image);
				core::dimension2di imgsize(texture->getOriginalSize());
			draw2DImageFilterScaled(driver, texture, imgrect2,
					core::rect<s32>(core::position2d<s32>(0,0), imgsize),
					NULL, hbar_colors, true);
		} else {
			video::SColor c_outside(255,255,0,0);
			//video::SColor c_outside(255,0,0,0);
			//video::SColor c_inside(255,192,192,192);
			s32 x1 = rect.UpperLeftCorner.X;
			s32 y1 = rect.UpperLeftCorner.Y;
			s32 x2 = rect.LowerRightCorner.X;
			s32 y2 = rect.LowerRightCorner.Y;
			// Black base borders
			driver->draw2DRectangle(c_outside,
				core::rect<s32>(
				v2s32(x1 - m_padding, y1 - m_padding),
				v2s32(x2 + m_padding, y1)
				), NULL);
			driver->draw2DRectangle(c_outside,
				core::rect<s32>(
				v2s32(x1 - m_padding, y2),
				v2s32(x2 + m_padding, y2 + m_padding)
				), NULL);
			driver->draw2DRectangle(c_outside,
				core::rect<s32>(
				v2s32(x1 - m_padding, y1),
					v2s32(x1, y2)
				), NULL);
			driver->draw2DRectangle(c_outside,
				core::rect<s32>(
					v2s32(x2, y1),
				v2s32(x2 + m_padding, y2)
				), NULL);
			/*// Light inside borders
			driver->draw2DRectangle(c_inside,
				core::rect<s32>(
					v2s32(x1 - padding/2, y1 - padding/2),
					v2s32(x2 + padding/2, y1)
				), NULL);
			driver->draw2DRectangle(c_inside,
				core::rect<s32>(
					v2s32(x1 - padding/2, y2),
					v2s32(x2 + padding/2, y2 + padding/2)
				), NULL);
			driver->draw2DRectangle(c_inside,
				core::rect<s32>(
					v2s32(x1 - padding/2, y1),
					v2s32(x1, y2)
				), NULL);
			driver->draw2DRectangle(c_inside,
				core::rect<s32>(
					v2s32(x2, y1),
					v2s32(x2 + padding/2, y2)
				), NULL);
			*/
		}
	}

	video::SColor bgcolor2(128, 0, 0, 0);
	if (!use_hotbar_image)
		driver->draw2DRectangle(bgcolor2, rect, NULL);
	drawItemStack(driver, g_fontengine->getFont(), item, rect, NULL,
		client, selected ? IT_ROT_SELECTED : IT_ROT_NONE);
}

//NOTE: selectitem = 0 -> no selected; selectitem 1-based
void Hud::drawItems(v2s32 upperleftpos, v2s32 screen_offset, s32 itemcount,
		s32 inv_offset, InventoryList *mainlist, u16 selectitem, u16 direction)
{
#ifdef HAVE_TOUCHSCREENGUI
	if (g_touchscreengui && inv_offset == 0)
		g_touchscreengui->resetHud();
#endif

	s32 height  = m_hotbar_imagesize + m_padding * 2;
	s32 width   = (itemcount - inv_offset) * (m_hotbar_imagesize + m_padding * 2);

	if (direction == HUD_DIR_TOP_BOTTOM || direction == HUD_DIR_BOTTOM_TOP) {
		s32 tmp = height;
		height = width;
		width = tmp;
	}

	// Position of upper left corner of bar
	v2s32 pos = screen_offset;
	pos.X *= m_hud_scaling * RenderingEngine::getDisplayDensity();
	pos.Y *= m_hud_scaling * RenderingEngine::getDisplayDensity();
	pos += upperleftpos;

	// Store hotbar_image in member variable, used by drawItem()
	if (hotbar_image != player->hotbar_image) {
		hotbar_image = player->hotbar_image;
		if (hotbar_image != "")
			use_hotbar_image = tsrc->isKnownSourceImage(hotbar_image);
		else
			use_hotbar_image = false;
	}

	// Store hotbar_selected_image in member variable, used by drawItem()
	if (hotbar_selected_image != player->hotbar_selected_image) {
		hotbar_selected_image = player->hotbar_selected_image;
		if (hotbar_selected_image != "")
			use_hotbar_selected_image = tsrc->isKnownSourceImage(hotbar_selected_image);
		else
			use_hotbar_selected_image = false;
	}

	// draw customized item background
	if (use_hotbar_image) {
		core::rect<s32> imgrect2(-m_padding/2, -m_padding/2,
			width+m_padding/2, height+m_padding/2);
		core::rect<s32> rect2 = imgrect2 + pos;
		video::ITexture *texture = tsrc->getTexture(hotbar_image);
		core::dimension2di imgsize(texture->getOriginalSize());
		draw2DImageFilterScaled(driver, texture, rect2,
			core::rect<s32>(core::position2d<s32>(0,0), imgsize),
			NULL, hbar_colors, true);
	}

	// Draw items
	core::rect<s32> imgrect(0, 0, m_hotbar_imagesize, m_hotbar_imagesize);
	for (s32 i = inv_offset; i < itemcount && (size_t)i < mainlist->getSize(); i++) {
		s32 fullimglen = m_hotbar_imagesize + m_padding * 2;

		v2s32 steppos;
		switch (direction) {
		case HUD_DIR_RIGHT_LEFT:
			steppos = v2s32(-(m_padding + (i - inv_offset) * fullimglen), m_padding);
			break;
		case HUD_DIR_TOP_BOTTOM:
			steppos = v2s32(m_padding, m_padding + (i - inv_offset) * fullimglen);
			break;
		case HUD_DIR_BOTTOM_TOP:
			steppos = v2s32(m_padding, -(m_padding + (i - inv_offset) * fullimglen));
			break;
		default:
			steppos = v2s32(m_padding + (i - inv_offset) * fullimglen, m_padding);
			break;
		}

		drawItem(mainlist->getItem(i), (imgrect + pos + steppos), (i + 1) == selectitem);

#ifdef HAVE_TOUCHSCREENGUI
		if (g_touchscreengui)
			g_touchscreengui->registerHudItem(i, (imgrect + pos + steppos));
#endif
	}
}


void Hud::drawLuaElements(const v3s16 &camera_offset)
{
	u32 text_height = g_fontengine->getTextHeight();
	irr::gui::IGUIFont* font = g_fontengine->getFont();
	for (size_t i = 0; i != player->maxHudId(); i++) {
		HudElement *e = player->getHud(i);
		if (!e)
			continue;

		v2s32 pos(floor(e->pos.X * (float) m_screensize.X + 0.5),
				floor(e->pos.Y * (float) m_screensize.Y + 0.5));
		switch (e->type) {
			case HUD_ELEM_IMAGE: {
				video::ITexture *texture = tsrc->getTexture(e->text);
				if (!texture)
					continue;

				const video::SColor color(255, 255, 255, 255);
				const video::SColor colors[] = {color, color, color, color};
				core::dimension2di imgsize(texture->getOriginalSize());
				v2s32 dstsize(imgsize.Width * e->scale.X,
				              imgsize.Height * e->scale.Y);
				if (e->scale.X < 0)
					dstsize.X = m_screensize.X * (e->scale.X * -0.01);
				if (e->scale.Y < 0)
					dstsize.Y = m_screensize.Y * (e->scale.Y * -0.01);
				v2s32 offset((e->align.X - 1.0) * dstsize.X / 2,
				             (e->align.Y - 1.0) * dstsize.Y / 2);
				core::rect<s32> rect(0, 0, dstsize.X, dstsize.Y);
				rect += pos + offset + v2s32(e->offset.X, e->offset.Y);
				draw2DImageFilterScaled(driver, texture, rect,
					core::rect<s32>(core::position2d<s32>(0,0), imgsize),
					NULL, colors, true);
				break; }
			case HUD_ELEM_TEXT: {
				video::SColor color(255, (e->number >> 16) & 0xFF,
										 (e->number >> 8)  & 0xFF,
										 (e->number >> 0)  & 0xFF);
				core::rect<s32> size(0, 0, e->scale.X, text_height * e->scale.Y);
				std::wstring text = unescape_enriched(utf8_to_wide(e->text));
				core::dimension2d<u32> textsize = font->getDimension(text.c_str());
				v2s32 offset((e->align.X - 1.0) * (textsize.Width / 2),
				             (e->align.Y - 1.0) * (textsize.Height / 2));
				v2s32 offs(e->offset.X, e->offset.Y);
				font->draw(text.c_str(), size + pos + offset + offs, color);
				break; }
			case HUD_ELEM_STATBAR: {
				v2s32 offs(e->offset.X, e->offset.Y);
				drawStatbar(pos, HUD_CORNER_UPPER, e->dir, e->text, e->number, offs, e->size);
				break; }
			case HUD_ELEM_INVENTORY: {
				InventoryList *inv = inventory->getList(e->text);
				drawItems(pos, v2s32(e->offset.X, e->offset.Y), e->number, 0,
					inv, e->item, e->dir);
				break; }
			case HUD_ELEM_WAYPOINT: {
				v3f p_pos = player->getPosition() / BS;
				v3f w_pos = e->world_pos * BS;
				float distance = floor(10 * p_pos.getDistanceFrom(e->world_pos)) / 10;
				scene::ICameraSceneNode* camera =
					RenderingEngine::get_scene_manager()->getActiveCamera();
				w_pos -= intToFloat(camera_offset, BS);
				core::matrix4 trans = camera->getProjectionMatrix();
				trans *= camera->getViewMatrix();
				f32 transformed_pos[4] = { w_pos.X, w_pos.Y, w_pos.Z, 1.0f };
				trans.multiplyWith1x4Matrix(transformed_pos);
				if (transformed_pos[3] < 0)
					break;
				f32 zDiv = transformed_pos[3] == 0.0f ? 1.0f :
					core::reciprocal(transformed_pos[3]);
				pos.X = m_screensize.X * (0.5 * transformed_pos[0] * zDiv + 0.5);
				pos.Y = m_screensize.Y * (0.5 - transformed_pos[1] * zDiv * 0.5);
				video::SColor color(255, (e->number >> 16) & 0xFF,
										 (e->number >> 8)  & 0xFF,
										 (e->number >> 0)  & 0xFF);
				core::rect<s32> size(0, 0, 200, 2 * text_height);
				std::wstring text = unescape_enriched(utf8_to_wide(e->name));
				font->draw(text.c_str(), size + pos, color);
				std::ostringstream os;
				os << distance << e->text;
				text = unescape_enriched(utf8_to_wide(os.str()));
				pos.Y += text_height;
				font->draw(text.c_str(), size + pos, color);
				break; }
			default:
				infostream << "Hud::drawLuaElements: ignoring drawform " << e->type <<
					" of hud element ID " << i << " due to unrecognized type" << std::endl;
		}
	}
}


void Hud::drawStatbar(v2s32 pos, u16 corner, u16 drawdir, std::string texture,
		s32 count, v2s32 offset, v2s32 size)
{
	const video::SColor color(255, 255, 255, 255);
	const video::SColor colors[] = {color, color, color, color};

	video::ITexture *stat_texture = tsrc->getTexture(texture);
	if (!stat_texture)
		return;

	core::dimension2di srcd(stat_texture->getOriginalSize());
	core::dimension2di dstd;
	if (size == v2s32()) {
		dstd = srcd;
	} else {
		float size_factor = m_hud_scaling * RenderingEngine::getDisplayDensity();
		dstd.Height = size.Y * size_factor;
		dstd.Width  = size.X * size_factor;
		offset.X *= size_factor;
		offset.Y *= size_factor;
	}

	v2s32 p = pos;
	if (corner & HUD_CORNER_LOWER)
		p -= dstd.Height;

	p += offset;

	v2s32 steppos;
	switch (drawdir) {
		case HUD_DIR_RIGHT_LEFT:
			steppos = v2s32(-1, 0);
			break;
		case HUD_DIR_TOP_BOTTOM:
			steppos = v2s32(0, 1);
			break;
		case HUD_DIR_BOTTOM_TOP:
			steppos = v2s32(0, -1);
			break;
		default:
			steppos = v2s32(1, 0);
	}
	steppos.X *= dstd.Width;
	steppos.Y *= dstd.Height;

	for (s32 i = 0; i < count / 2; i++)
	{
		core::rect<s32> srcrect(0, 0, srcd.Width, srcd.Height);
		core::rect<s32> dstrect(0,0, dstd.Width, dstd.Height);

		dstrect += p;
		draw2DImageFilterScaled(driver, stat_texture, dstrect, srcrect, NULL, colors, true);
		p += steppos;
	}

	if (count % 2 == 1)
	{
		core::rect<s32> srcrect(0, 0, srcd.Width / 2, srcd.Height);
		core::rect<s32> dstrect(0,0, dstd.Width / 2, dstd.Height);

		dstrect += p;
		draw2DImageFilterScaled(driver, stat_texture, dstrect, srcrect, NULL, colors, true);
	}
}


void Hud::drawHotbar(u16 playeritem) {

	v2s32 centerlowerpos(m_displaycenter.X, m_screensize.Y);

	InventoryList *mainlist = inventory->getList("main");
	if (mainlist == NULL) {
		//silently ignore this we may not be initialized completely
		return;
	}

	s32 hotbar_itemcount = player->hud_hotbar_itemcount;
	s32 width = hotbar_itemcount * (m_hotbar_imagesize + m_padding * 2);
	v2s32 pos = centerlowerpos - v2s32(width / 2, m_hotbar_imagesize + m_padding * 3);

	const v2u32 &window_size = RenderingEngine::get_instance()->getWindowSize();
	if ( (float) width / (float) window_size.X <=
			g_settings->getFloat("hud_hotbar_max_width")) {
		if (player->hud_flags & HUD_FLAG_HOTBAR_VISIBLE) {
			drawItems(pos, v2s32(0, 0), hotbar_itemcount, 0, mainlist, playeritem + 1, 0);
		}
	} else {
		pos.X += width/4;

		v2s32 secondpos = pos;
		pos = pos - v2s32(0, m_hotbar_imagesize + m_padding);

		if (player->hud_flags & HUD_FLAG_HOTBAR_VISIBLE) {
			drawItems(pos, v2s32(0, 0), hotbar_itemcount / 2, 0,
				mainlist, playeritem + 1, 0);
			drawItems(secondpos, v2s32(0, 0), hotbar_itemcount,
				hotbar_itemcount / 2, mainlist, playeritem + 1, 0);
		}
	}

	//////////////////////////// compatibility code to be removed //////////////
	// this is ugly as hell but there's no other way to keep compatibility to
	// old servers
	if ((player->hud_flags & HUD_FLAG_HEALTHBAR_VISIBLE)) {
		drawStatbar(v2s32(floor(0.5 * (float)m_screensize.X + 0.5),
			floor(1 * (float) m_screensize.Y + 0.5)),
			HUD_CORNER_UPPER, 0, "heart.png",
			player->hp, v2s32((-10*24)-25,-(48+24+10)), v2s32(24,24));
	}

	if ((player->hud_flags & HUD_FLAG_BREATHBAR_VISIBLE) &&
			(player->getBreath() < 11)) {
		drawStatbar(v2s32(floor(0.5 * (float)m_screensize.X + 0.5),
			floor(1 * (float) m_screensize.Y + 0.5)),
			HUD_CORNER_UPPER, 0, "bubble.png",
			player->getBreath(), v2s32(25,-(48+24+10)), v2s32(24,24));
	}
	////////////////////////////////////////////////////////////////////////////
}


void Hud::drawCrosshair()
{
	if (use_crosshair_image) {
		video::ITexture *crosshair = tsrc->getTexture("crosshair.png");
		v2u32 size  = crosshair->getOriginalSize();
		v2s32 lsize = v2s32(m_displaycenter.X - (size.X / 2),
				m_displaycenter.Y - (size.Y / 2));
		driver->draw2DImage(crosshair, lsize,
				core::rect<s32>(0, 0, size.X, size.Y),
				0, crosshair_argb, true);
	} else {
		driver->draw2DLine(m_displaycenter - v2s32(10, 0),
				m_displaycenter + v2s32(10, 0), crosshair_argb);
		driver->draw2DLine(m_displaycenter - v2s32(0, 10),
				m_displaycenter + v2s32(0, 10), crosshair_argb);
	}
}

void Hud::setSelectionPos(const v3f &pos, const v3s16 &camera_offset)
{
	m_camera_offset = camera_offset;
	m_selection_pos = pos;
	m_selection_pos_with_offset = pos - intToFloat(camera_offset, BS);
}

void Hud::drawSelectionMesh()
{
	if (m_mode == HIGHLIGHT_BOX) {
		// Draw 3D selection boxes
		video::SMaterial oldmaterial = driver->getMaterial2D();
		driver->setMaterial(m_selection_material);
		for (std::vector<aabb3f>::const_iterator
				i = m_selection_boxes.begin();
				i != m_selection_boxes.end(); ++i) {
			aabb3f box = aabb3f(
				i->MinEdge + m_selection_pos_with_offset,
				i->MaxEdge + m_selection_pos_with_offset);

			u32 r = (selectionbox_argb.getRed() *
					m_selection_mesh_color.getRed() / 255);
			u32 g = (selectionbox_argb.getGreen() *
					m_selection_mesh_color.getGreen() / 255);
			u32 b = (selectionbox_argb.getBlue() *
					m_selection_mesh_color.getBlue() / 255);
			driver->draw3DBox(box, video::SColor(255, r, g, b));
		}
		driver->setMaterial(oldmaterial);
	} else if (m_mode == HIGHLIGHT_HALO && m_selection_mesh) {
		// Draw selection mesh
		video::SMaterial oldmaterial = driver->getMaterial2D();
		driver->setMaterial(m_selection_material);
		setMeshColor(m_selection_mesh, m_selection_mesh_color);
		video::SColor face_color(0,
			MYMIN(255, m_selection_mesh_color.getRed() * 1.5),
			MYMIN(255, m_selection_mesh_color.getGreen() * 1.5),
			MYMIN(255, m_selection_mesh_color.getBlue() * 1.5));
		setMeshColorByNormal(m_selection_mesh, m_selected_face_normal,
			face_color);
		scene::IMesh* mesh = cloneMesh(m_selection_mesh);
		translateMesh(mesh, m_selection_pos_with_offset);
		u32 mc = m_selection_mesh->getMeshBufferCount();
		for (u32 i = 0; i < mc; i++) {
			scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
			driver->drawMeshBuffer(buf);
		}
		mesh->drop();
		driver->setMaterial(oldmaterial);
	}
}

void Hud::updateSelectionMesh(const v3s16 &camera_offset)
{
	m_camera_offset = camera_offset;
	if (m_mode != HIGHLIGHT_HALO)
		return;

	if (m_selection_mesh) {
		m_selection_mesh->drop();
		m_selection_mesh = NULL;
	}

	if (!m_selection_boxes.size()) {
		// No pointed object
		return;
	}

	// New pointed object, create new mesh.

	// Texture UV coordinates for selection boxes
	static f32 texture_uv[24] = {
		0,0,1,1,
		0,0,1,1,
		0,0,1,1,
		0,0,1,1,
		0,0,1,1,
		0,0,1,1
	};

	// Use single halo box instead of multiple overlapping boxes.
	// Temporary solution - problem can be solved with multiple
	// rendering targets, or some method to remove inner surfaces.
	// Thats because of halo transparency.

	aabb3f halo_box(100.0, 100.0, 100.0, -100.0, -100.0, -100.0);
	m_halo_boxes.clear();

	for (std::vector<aabb3f>::iterator
			i = m_selection_boxes.begin();
			i != m_selection_boxes.end(); ++i) {
		halo_box.addInternalBox(*i);
	}

	m_halo_boxes.push_back(halo_box);
	m_selection_mesh = convertNodeboxesToMesh(
		m_halo_boxes, texture_uv, 0.5);
}

void Hud::resizeHotbar() {
	const v2u32 &window_size = RenderingEngine::get_instance()->getWindowSize();

	if (m_screensize != window_size) {
		m_hotbar_imagesize = floor(HOTBAR_IMAGE_SIZE *
			RenderingEngine::getDisplayDensity() + 0.5);
		m_hotbar_imagesize *= m_hud_scaling;
		m_padding = m_hotbar_imagesize / 12;
		m_screensize = window_size;
		m_displaycenter = v2s32(m_screensize.X/2,m_screensize.Y/2);
	}
}

struct MeshTimeInfo {
	u64 time;
	scene::IMesh *mesh;
};

void drawItemStack(video::IVideoDriver *driver,
		gui::IGUIFont *font,
		const ItemStack &item,
		const core::rect<s32> &rect,
		const core::rect<s32> *clip,
		Client *client,
		ItemRotationKind rotation_kind)
{
	static MeshTimeInfo rotation_time_infos[IT_ROT_NONE];
	static thread_local bool enable_animations =
		g_settings->getBool("inventory_items_animations");

	if (item.empty()) {
		if (rotation_kind < IT_ROT_NONE) {
			rotation_time_infos[rotation_kind].mesh = NULL;
		}
		return;
	}

	const ItemDefinition &def = item.getDefinition(client->idef());
	ItemMesh *imesh = client->idef()->getWieldMesh(def.name, client);

	if (imesh && imesh->mesh) {
		scene::IMesh *mesh = imesh->mesh;
		driver->clearZBuffer();
		s32 delta = 0;
		if (rotation_kind < IT_ROT_NONE) {
			MeshTimeInfo &ti = rotation_time_infos[rotation_kind];
			if (mesh != ti.mesh) {
				ti.mesh = mesh;
				ti.time = porting::getTimeMs();
			} else {
				delta = porting::getDeltaMs(ti.time, porting::getTimeMs()) % 100000;
			}
		}
		core::rect<s32> oldViewPort = driver->getViewPort();
		core::matrix4 oldProjMat = driver->getTransform(video::ETS_PROJECTION);
		core::matrix4 oldViewMat = driver->getTransform(video::ETS_VIEW);
		core::matrix4 ProjMatrix;
		ProjMatrix.buildProjectionMatrixOrthoLH(2, 2, -1, 100);
		driver->setTransform(video::ETS_PROJECTION, ProjMatrix);
		driver->setTransform(video::ETS_VIEW, ProjMatrix);
		core::matrix4 matrix;
		matrix.makeIdentity();

		if (enable_animations) {
			float timer_f = (float) delta / 5000.0;
			matrix.setRotationDegrees(core::vector3df(0, 360 * timer_f, 0));
		}

		driver->setTransform(video::ETS_WORLD, matrix);
		driver->setViewPort(rect);

		video::SColor basecolor =
			client->idef()->getItemstackColor(item, client);

		u32 mc = mesh->getMeshBufferCount();
		for (u32 j = 0; j < mc; ++j) {
			scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
			// we can modify vertices relatively fast,
			// because these meshes are not buffered.
			assert(buf->getHardwareMappingHint_Vertex() == scene::EHM_NEVER);
			video::SColor c = basecolor;
			if (imesh->buffer_colors.size() > j) {
				ItemPartColor *p = &imesh->buffer_colors[j];
				if (p->override_base)
					c = p->color;
			}
			if (imesh->needs_shading)
				colorizeMeshBuffer(buf, &c);
			else
				setMeshBufferColor(buf, c);
			video::SMaterial &material = buf->getMaterial();
			material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
			material.Lighting = false;
			driver->setMaterial(material);
			driver->drawMeshBuffer(buf);
		}

		driver->setTransform(video::ETS_VIEW, oldViewMat);
		driver->setTransform(video::ETS_PROJECTION, oldProjMat);
		driver->setViewPort(oldViewPort);
	}

	if(def.type == ITEM_TOOL && item.wear != 0)
	{
		// Draw a progressbar
		float barheight = rect.getHeight()/16;
		float barpad_x = rect.getWidth()/16;
		float barpad_y = rect.getHeight()/16;
		core::rect<s32> progressrect(
			rect.UpperLeftCorner.X + barpad_x,
			rect.LowerRightCorner.Y - barpad_y - barheight,
			rect.LowerRightCorner.X - barpad_x,
			rect.LowerRightCorner.Y - barpad_y);

		// Shrink progressrect by amount of tool damage
		float wear = item.wear / 65535.0;
		int progressmid =
			wear * progressrect.UpperLeftCorner.X +
			(1-wear) * progressrect.LowerRightCorner.X;

		// Compute progressbar color
		//   wear = 0.0: green
		//   wear = 0.5: yellow
		//   wear = 1.0: red
		video::SColor color(255,255,255,255);
		int wear_i = MYMIN(floor(wear * 600), 511);
		wear_i = MYMIN(wear_i + 10, 511);
		if(wear_i <= 255)
			color.set(255, wear_i, 255, 0);
		else
			color.set(255, 255, 511-wear_i, 0);

		core::rect<s32> progressrect2 = progressrect;
		progressrect2.LowerRightCorner.X = progressmid;
		driver->draw2DRectangle(color, progressrect2, clip);

		color = video::SColor(255,0,0,0);
		progressrect2 = progressrect;
		progressrect2.UpperLeftCorner.X = progressmid;
		driver->draw2DRectangle(color, progressrect2, clip);
	}

	if(font != NULL && item.count >= 2)
	{
		// Get the item count as a string
		std::string text = itos(item.count);
		v2u32 dim = font->getDimension(utf8_to_wide(text).c_str());
		v2s32 sdim(dim.X,dim.Y);

		core::rect<s32> rect2(
			/*rect.UpperLeftCorner,
			core::dimension2d<u32>(rect.getWidth(), 15)*/
			rect.LowerRightCorner - sdim,
			sdim
		);

		video::SColor bgcolor(128,0,0,0);
		driver->draw2DRectangle(bgcolor, rect2, clip);

		video::SColor color(255,255,255,255);
		font->draw(text.c_str(), rect2, color, false, false, clip);
	}
}
	Commit message (Collapse)	Author	Age
*	Fix fs::RemoveRelativePathComponents for paths with a leading dot component	ShadowNinja	2016-11-24
\| \| \| \| \| \|	Previously, paths like ./worlds would be resolved to /worlds since the leading dot was considered just as irrelevant as a dot in the middle of the path.
*	Use MoveFileEx to rename files on Windows (not rename)	gregorycu	2016-05-01
\|
*	filesys: safeWriteToFile(): Remove the target file before rename only on Windows	Perttu Ahola	2016-01-01
\| \| \| \| \| \| \| \| \| \|	Removing the target file on other platforms was enabled likely unintentionally by commit 5f1f1151d3a9c113902630adc16cc3f4845da7ba. This may be the reason why there has been corruption of files on Linux on hard shutdowns. Previously I described the problem and this fix in issue #3084.
*	Add seperate cache path	ShadowNinja	2015-12-07
\| \| \| \| \|	This is set to the XDG cache path where possible. It's set to the app's cache path on Android.
*	Windows: Fix some warnings.	Diego Martinez	2015-07-09
\|
*	Add mod security	ShadowNinja	2015-05-16
\| \| \| \|	Due to compatibility concerns, this is temporarily disabled.
*	Tests: Modularize unit testing	kwolekr	2015-04-26
\| \| \| \| \| \|	Split unit tests into separate files under src/unittest/ Give better unittest diagnostics Clean up some code
*	Schematics: Prepend mod path to relative schematic filepaths	kwolekr	2015-04-08
\|
*	Fix fs::GetRecursiveSubPaths trying to get directory lists for files	ShadowNinja	2014-12-24
\|
*	Rewrite fs:GetDirListing(file) by kahrl	SmallJoker	2014-12-10
\|
*	Ignore .name directories and files	SmallJoker	2014-12-10
\| \| \| \|	Signed-off-by: Craig Robbins <kde.psych@gmail.com>
*	Remove temporary file at safeWriteToFile()	selat	2014-08-16
\|
*	Add support for Android 2.3+	sapier	2014-06-29
\| \| \| \| \| \| \| \| \| \| \| \| \|	There have been plenty of ppl involved in creating this version. I don't wanna mention names as I'm sure I'd forget someone so I just tell where help has been done: - The partial android versions done by various ppl - Testing on different android devices - reviewing code (especially the in core changes) - testing controls - reviewing texts A big thank you to everyone helping this to be completed!
*	Omnicleanup: header cleanup, add ModApiUtil shared between game and mainmenu	Kahrl	2013-08-14
\|
*	Dont write directly to files but rather write and copy a tmp file	PilzAdam	2013-08-13
\|
*	Fix various memory access problems detected by valgrind	Kahrl	2013-08-07
\|
*	Replace C++ mainmenu by formspec powered one	sapier	2013-07-02
\|
*	Update Copyright Years	Sfan5	2013-02-24
\|
*	Change Minetest-c55 to Minetest	PilzAdam	2013-02-24
\|
*	Switch the license to be LGPLv2/later, with small parts still remaining as ↵	Perttu Ahola	2012-06-05
\| \| \| \|	GPLv2/later, by agreement of major contributors
*	Add #include <unistd.h> to filesys.cpp	Perttu Ahola	2012-04-06
\|
*	Better file/directory removal platform code and utilities	Perttu Ahola	2012-03-26
\|
*	Small fix to fs::GetDirListing when trying to list an inexistent directory	Perttu Ahola	2012-03-25
\|
*	Fix filesys.cpp debug output to go into debug.txt	Perttu Ahola	2012-03-23
\|
*	Fix CreateAllDirs() (failed for relative fully non-existing path)	Perttu Ahola	2012-03-11
\|
*	Check symlinks with stat() to know if they are directories or not	Perttu Ahola	2011-12-04
\|
*	Add support for unix filesystems which yield DT_UNKNOWN in dirent->d_type, ↵	Perttu Ahola	2011-12-04
\| \| \| \|	falling back on stat().
*	Fix map delete on windows (concatenate paths correctly with / or \ depending ↵	Perttu Ahola	2011-10-16
\| \| \| \|	on OS)
*	Fix bug in posix file/directory removal wrapper, as pointed out by kahrl	Perttu Ahola	2011-09-06
\|
*	Windows.h -> windows.h for cross-mingw build	Perttu Ahola	2011-08-14
\|
*	New map directory structure that avoids map size being limited by filesystem	Ciaran Gultnieks	2011-05-18
\|
*	should work now	Perttu Ahola	2011-01-26
\|
*	Little fixes	Perttu Ahola	2011-01-26
\|
*	Map deletion button	Perttu Ahola	2011-01-26
\|
*	removed boost support from filesys.cpp; default to posix	Perttu Ahola	2011-01-07
\|
*	license stuff	Perttu Ahola	2010-11-29
\| \| \| \| \|	--HG-- rename : src/licensecomment.txt => licensecomment.txt
*	Initial files	Perttu Ahola	2010-11-27