src/client/minimap.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2015 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "minimap.h"
  21 #include <cmath>
  22 #include "client.h"
  23 #include "clientmap.h"
  24 #include "settings.h"
  25 #include "shader.h"
  26 #include "mapblock.h"
  27 #include "client/renderingengine.h"
  28 #include "gettext.h"
  29
  30 ////
  31 //// MinimapUpdateThread
  32 ////
  33
  34 MinimapUpdateThread::~MinimapUpdateThread()
  35 {
  36         for (auto &it : m_blocks_cache) {
  37                 delete it.second;
  38         }
  39
  40         for (auto &q : m_update_queue) {
  41                 delete q.data;
  42         }
  43 }
  44
  45 bool MinimapUpdateThread::pushBlockUpdate(v3s16 pos, MinimapMapblock *data)
  46 {
  47         MutexAutoLock lock(m_queue_mutex);
  48
  49         // Find if block is already in queue.
  50         // If it is, update the data and quit.
  51         for (QueuedMinimapUpdate &q : m_update_queue) {
  52                 if (q.pos == pos) {
  53                         delete q.data;
  54                         q.data = data;
  55                         return false;
  56                 }
  57         }
  58
  59         // Add the block
  60         QueuedMinimapUpdate q;
  61         q.pos  = pos;
  62         q.data = data;
  63         m_update_queue.push_back(q);
  64
  65         return true;
  66 }
  67
  68 bool MinimapUpdateThread::popBlockUpdate(QueuedMinimapUpdate *update)
  69 {
  70         MutexAutoLock lock(m_queue_mutex);
  71
  72         if (m_update_queue.empty())
  73                 return false;
  74
  75         *update = m_update_queue.front();
  76         m_update_queue.pop_front();
  77
  78         return true;
  79 }
  80
  81 void MinimapUpdateThread::enqueueBlock(v3s16 pos, MinimapMapblock *data)
  82 {
  83         pushBlockUpdate(pos, data);
  84         deferUpdate();
  85 }
  86
  87
  88 void MinimapUpdateThread::doUpdate()
  89 {
  90         QueuedMinimapUpdate update;
  91
  92         while (popBlockUpdate(&update)) {
  93                 if (update.data) {
  94                         // Swap two values in the map using single lookup
  95                         std::pair<std::map<v3s16, MinimapMapblock*>::iterator, bool>
  96                             result = m_blocks_cache.insert(std::make_pair(update.pos, update.data));
  97                         if (!result.second) {
  98                                 delete result.first->second;
  99                                 result.first->second = update.data;
 100                         }
 101                 } else {
 102                         std::map<v3s16, MinimapMapblock *>::iterator it;
 103                         it = m_blocks_cache.find(update.pos);
 104                         if (it != m_blocks_cache.end()) {
 105                                 delete it->second;
 106                                 m_blocks_cache.erase(it);
 107                         }
 108                 }
 109         }
 110
 111
 112         if (data->map_invalidated && (
 113                                 data->mode.type == MINIMAP_TYPE_RADAR ||
 114                                 data->mode.type == MINIMAP_TYPE_SURFACE)) {
 115                 getMap(data->pos, data->mode.map_size, data->mode.scan_height);
 116                 data->map_invalidated = false;
 117         }
 118 }
 119
 120 void MinimapUpdateThread::getMap(v3s16 pos, s16 size, s16 height)
 121 {
 122         v3s16 pos_min(pos.X - size / 2, pos.Y - height / 2, pos.Z - size / 2);
 123         v3s16 pos_max(pos_min.X + size - 1, pos.Y + height / 2, pos_min.Z + size - 1);
 124         v3s16 blockpos_min = getNodeBlockPos(pos_min);
 125         v3s16 blockpos_max = getNodeBlockPos(pos_max);
 126
 127 // clear the map
 128         for (int z = 0; z < size; z++)
 129         for (int x = 0; x < size; x++) {
 130                 MinimapPixel &mmpixel = data->minimap_scan[x + z * size];
 131                 mmpixel.air_count = 0;
 132                 mmpixel.height = 0;
 133                 mmpixel.n = MapNode(CONTENT_AIR);
 134         }
 135
 136 // draw the map
 137         v3s16 blockpos;
 138         for (blockpos.Z = blockpos_min.Z; blockpos.Z <= blockpos_max.Z; ++blockpos.Z)
 139         for (blockpos.Y = blockpos_min.Y; blockpos.Y <= blockpos_max.Y; ++blockpos.Y)
 140         for (blockpos.X = blockpos_min.X; blockpos.X <= blockpos_max.X; ++blockpos.X) {
 141                 std::map<v3s16, MinimapMapblock *>::const_iterator pblock =
 142                         m_blocks_cache.find(blockpos);
 143                 if (pblock == m_blocks_cache.end())
 144                         continue;
 145                 const MinimapMapblock &block = *pblock->second;
 146
 147                 v3s16 block_node_min(blockpos * MAP_BLOCKSIZE);
 148                 v3s16 block_node_max(block_node_min + MAP_BLOCKSIZE - 1);
 149                 // clip
 150                 v3s16 range_min = componentwise_max(block_node_min, pos_min);
 151                 v3s16 range_max = componentwise_min(block_node_max, pos_max);
 152
 153                 v3s16 pos;
 154                 pos.Y = range_min.Y;
 155                 for (pos.Z = range_min.Z; pos.Z <= range_max.Z; ++pos.Z)
 156                 for (pos.X = range_min.X; pos.X <= range_max.X; ++pos.X) {
 157                         v3s16 inblock_pos = pos - block_node_min;
 158                         const MinimapPixel &in_pixel =
 159                                 block.data[inblock_pos.Z * MAP_BLOCKSIZE + inblock_pos.X];
 160
 161                         v3s16 inmap_pos = pos - pos_min;
 162                         MinimapPixel &out_pixel =
 163                                 data->minimap_scan[inmap_pos.X + inmap_pos.Z * size];
 164
 165                         out_pixel.air_count += in_pixel.air_count;
 166                         if (in_pixel.n.param0 != CONTENT_AIR) {
 167                                 out_pixel.n = in_pixel.n;
 168                                 out_pixel.height = inmap_pos.Y + in_pixel.height;
 169                         }
 170                 }
 171         }
 172 }
 173
 174 ////
 175 //// Mapper
 176 ////
 177
 178 Minimap::Minimap(Client *client)
 179 {
 180         this->client    = client;
 181         this->driver    = RenderingEngine::get_video_driver();
 182         this->m_tsrc    = client->getTextureSource();
 183         this->m_shdrsrc = client->getShaderSource();
 184         this->m_ndef    = client->getNodeDefManager();
 185
 186         m_angle = 0.f;
 187         m_current_mode_index = 0;
 188
 189         // Initialize static settings
 190         m_enable_shaders = g_settings->getBool("enable_shaders");
 191         m_surface_mode_scan_height =
 192                 g_settings->getBool("minimap_double_scan_height") ? 256 : 128;
 193
 194         // Initialize minimap modes
 195         addMode(MINIMAP_TYPE_OFF);
 196         addMode(MINIMAP_TYPE_SURFACE, 256);
 197         addMode(MINIMAP_TYPE_SURFACE, 128);
 198         addMode(MINIMAP_TYPE_SURFACE, 64);
 199         addMode(MINIMAP_TYPE_RADAR,   512);
 200         addMode(MINIMAP_TYPE_RADAR,   256);
 201         addMode(MINIMAP_TYPE_RADAR,   128);
 202
 203         // Initialize minimap data
 204         data = new MinimapData;
 205         data->map_invalidated = true;
 206
 207         data->minimap_shape_round = g_settings->getBool("minimap_shape_round");
 208
 209         // Get round minimap textures
 210         data->minimap_mask_round = driver->createImage(
 211                 m_tsrc->getTexture("minimap_mask_round.png"),
 212                 core::position2d<s32>(0, 0),
 213                 core::dimension2d<u32>(MINIMAP_MAX_SX, MINIMAP_MAX_SY));
 214         data->minimap_overlay_round = m_tsrc->getTexture("minimap_overlay_round.png");
 215
 216         // Get square minimap textures
 217         data->minimap_mask_square = driver->createImage(
 218                 m_tsrc->getTexture("minimap_mask_square.png"),
 219                 core::position2d<s32>(0, 0),
 220                 core::dimension2d<u32>(MINIMAP_MAX_SX, MINIMAP_MAX_SY));
 221         data->minimap_overlay_square = m_tsrc->getTexture("minimap_overlay_square.png");
 222
 223         // Create player marker texture
 224         data->player_marker = m_tsrc->getTexture("player_marker.png");
 225         // Create object marker texture
 226         data->object_marker_red = m_tsrc->getTexture("object_marker_red.png");
 227
 228         setModeIndex(0);
 229
 230         // Create mesh buffer for minimap
 231         m_meshbuffer = getMinimapMeshBuffer();
 232
 233         // Initialize and start thread
 234         m_minimap_update_thread = new MinimapUpdateThread();
 235         m_minimap_update_thread->data = data;
 236         m_minimap_update_thread->start();
 237 }
 238
 239 Minimap::~Minimap()
 240 {
 241         m_minimap_update_thread->stop();
 242         m_minimap_update_thread->wait();
 243
 244         m_meshbuffer->drop();
 245
 246         data->minimap_mask_round->drop();
 247         data->minimap_mask_square->drop();
 248
 249         driver->removeTexture(data->texture);
 250         driver->removeTexture(data->heightmap_texture);
 251         driver->removeTexture(data->minimap_overlay_round);
 252         driver->removeTexture(data->minimap_overlay_square);
 253         driver->removeTexture(data->object_marker_red);
 254
 255         for (MinimapMarker *m : m_markers)
 256                 delete m;
 257         m_markers.clear();
 258
 259         delete data;
 260         delete m_minimap_update_thread;
 261 }
 262
 263 void Minimap::addBlock(v3s16 pos, MinimapMapblock *data)
 264 {
 265         m_minimap_update_thread->enqueueBlock(pos, data);
 266 }
 267
 268 void Minimap::toggleMinimapShape()
 269 {
 270         MutexAutoLock lock(m_mutex);
 271
 272         data->minimap_shape_round = !data->minimap_shape_round;
 273         g_settings->setBool("minimap_shape_round", data->minimap_shape_round);
 274         m_minimap_update_thread->deferUpdate();
 275 }
 276
 277 void Minimap::setMinimapShape(MinimapShape shape)
 278 {
 279         MutexAutoLock lock(m_mutex);
 280
 281         if (shape == MINIMAP_SHAPE_SQUARE)
 282                 data->minimap_shape_round = false;
 283         else if (shape == MINIMAP_SHAPE_ROUND)
 284                 data->minimap_shape_round = true;
 285
 286         g_settings->setBool("minimap_shape_round", data->minimap_shape_round);
 287         m_minimap_update_thread->deferUpdate();
 288 }
 289
 290 MinimapShape Minimap::getMinimapShape()
 291 {
 292         if (data->minimap_shape_round) {
 293                 return MINIMAP_SHAPE_ROUND;
 294         }
 295
 296         return MINIMAP_SHAPE_SQUARE;
 297 }
 298
 299 void Minimap::setModeIndex(size_t index)
 300 {
 301         MutexAutoLock lock(m_mutex);
 302
 303         if (index < m_modes.size()) {
 304                 data->mode = m_modes[index];
 305                 m_current_mode_index = index;
 306         } else {
 307                 data->mode = {MINIMAP_TYPE_OFF, gettext("Minimap hidden"), 0, 0, "", 0};
 308                 m_current_mode_index = 0;
 309         }
 310
 311         data->map_invalidated = true;
 312
 313         if (m_minimap_update_thread)
 314                 m_minimap_update_thread->deferUpdate();
 315 }
 316
 317 void Minimap::addMode(MinimapModeDef mode)
 318 {
 319         // Check validity
 320         if (mode.type == MINIMAP_TYPE_TEXTURE) {
 321                 if (mode.texture.empty())
 322                         return;
 323                 if (mode.scale < 1)
 324                         mode.scale = 1;
 325         }
 326
 327         int zoom = -1;
 328
 329         // Build a default standard label
 330         if (mode.label == "") {
 331                 switch (mode.type) {
 332                         case MINIMAP_TYPE_OFF:
 333                                 mode.label = gettext("Minimap hidden");
 334                                 break;
 335                         case MINIMAP_TYPE_SURFACE:
 336                                 mode.label = gettext("Minimap in surface mode, Zoom x%d");
 337                                 if (mode.map_size > 0)
 338                                         zoom = 256 / mode.map_size;
 339                                 break;
 340                         case MINIMAP_TYPE_RADAR:
 341                                 mode.label = gettext("Minimap in radar mode, Zoom x%d");
 342                                 if (mode.map_size > 0)
 343                                         zoom = 512 / mode.map_size;
 344                                 break;
 345                         case MINIMAP_TYPE_TEXTURE:
 346                                 mode.label = gettext("Minimap in texture mode");
 347                                 break;
 348                         default:
 349                                 break;
 350                 }
 351         }
 352         // else: Custom labels need mod-provided client-side translation
 353
 354         if (zoom >= 0) {
 355                 char label_buf[1024];
 356                 porting::mt_snprintf(label_buf, sizeof(label_buf),
 357                         mode.label.c_str(), zoom);
 358                 mode.label = label_buf;
 359         }
 360
 361         m_modes.push_back(mode);
 362 }
 363
 364 void Minimap::addMode(MinimapType type, u16 size, std::string label,
 365                 std::string texture, u16 scale)
 366 {
 367         MinimapModeDef mode;
 368         mode.type = type;
 369         mode.label = label;
 370         mode.map_size = size;
 371         mode.texture = texture;
 372         mode.scale = scale;
 373         switch (type) {
 374                 case MINIMAP_TYPE_SURFACE:
 375                         mode.scan_height = m_surface_mode_scan_height;
 376                         break;
 377                 case MINIMAP_TYPE_RADAR:
 378                         mode.scan_height = 32;
 379                         break;
 380                 default:
 381                         mode.scan_height = 0;
 382         }
 383         addMode(mode);
 384 }
 385
 386 void Minimap::nextMode()
 387 {
 388         if (m_modes.empty())
 389                 return;
 390         m_current_mode_index++;
 391         if (m_current_mode_index >= m_modes.size())
 392                 m_current_mode_index = 0;
 393
 394         setModeIndex(m_current_mode_index);
 395 }
 396
 397 void Minimap::setPos(v3s16 pos)
 398 {
 399         bool do_update = false;
 400
 401         {
 402                 MutexAutoLock lock(m_mutex);
 403
 404                 if (pos != data->old_pos) {
 405                         data->old_pos = data->pos;
 406                         data->pos = pos;
 407                         do_update = true;
 408                 }
 409         }
 410
 411         if (do_update)
 412                 m_minimap_update_thread->deferUpdate();
 413 }
 414
 415 void Minimap::setAngle(f32 angle)
 416 {
 417         m_angle = angle;
 418 }
 419
 420 void Minimap::blitMinimapPixelsToImageRadar(video::IImage *map_image)
 421 {
 422         video::SColor c(240, 0, 0, 0);
 423         for (s16 x = 0; x < data->mode.map_size; x++)
 424         for (s16 z = 0; z < data->mode.map_size; z++) {
 425                 MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->mode.map_size];
 426
 427                 if (mmpixel->air_count > 0)
 428                         c.setGreen(core::clamp(core::round32(32 + mmpixel->air_count * 8), 0, 255));
 429                 else
 430                         c.setGreen(0);
 431
 432                 map_image->setPixel(x, data->mode.map_size - z - 1, c);
 433         }
 434 }
 435
 436 void Minimap::blitMinimapPixelsToImageSurface(
 437         video::IImage *map_image, video::IImage *heightmap_image)
 438 {
 439         // This variable creation/destruction has a 1% cost on rendering minimap
 440         video::SColor tilecolor;
 441         for (s16 x = 0; x < data->mode.map_size; x++)
 442         for (s16 z = 0; z < data->mode.map_size; z++) {
 443                 MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->mode.map_size];
 444
 445                 const ContentFeatures &f = m_ndef->get(mmpixel->n);
 446                 const TileDef *tile = &f.tiledef[0];
 447
 448                 // Color of the 0th tile (mostly this is the topmost)
 449                 if(tile->has_color)
 450                         tilecolor = tile->color;
 451                 else
 452                         mmpixel->n.getColor(f, &tilecolor);
 453
 454                 tilecolor.setRed(tilecolor.getRed() * f.minimap_color.getRed() / 255);
 455                 tilecolor.setGreen(tilecolor.getGreen() * f.minimap_color.getGreen() / 255);
 456                 tilecolor.setBlue(tilecolor.getBlue() * f.minimap_color.getBlue() / 255);
 457                 tilecolor.setAlpha(240);
 458
 459                 map_image->setPixel(x, data->mode.map_size - z - 1, tilecolor);
 460
 461                 u32 h = mmpixel->height;
 462                 heightmap_image->setPixel(x,data->mode.map_size - z - 1,
 463                         video::SColor(255, h, h, h));
 464         }
 465 }
 466
 467 video::ITexture *Minimap::getMinimapTexture()
 468 {
 469         // update minimap textures when new scan is ready
 470         if (data->map_invalidated && data->mode.type != MINIMAP_TYPE_TEXTURE)
 471                 return data->texture;
 472
 473         // create minimap and heightmap images in memory
 474         core::dimension2d<u32> dim(data->mode.map_size, data->mode.map_size);
 475         video::IImage *map_image       = driver->createImage(video::ECF_A8R8G8B8, dim);
 476         video::IImage *heightmap_image = driver->createImage(video::ECF_A8R8G8B8, dim);
 477         video::IImage *minimap_image   = driver->createImage(video::ECF_A8R8G8B8,
 478                 core::dimension2d<u32>(MINIMAP_MAX_SX, MINIMAP_MAX_SY));
 479
 480         // Blit MinimapPixels to images
 481         switch(data->mode.type) {
 482         case MINIMAP_TYPE_OFF:
 483                 break;
 484         case MINIMAP_TYPE_SURFACE:
 485                 blitMinimapPixelsToImageSurface(map_image, heightmap_image);
 486                 break;
 487         case MINIMAP_TYPE_RADAR:
 488                 blitMinimapPixelsToImageRadar(map_image);
 489                 break;
 490         case MINIMAP_TYPE_TEXTURE:
 491                 // Want to use texture source, to : 1 find texture, 2 cache it
 492                 video::ITexture* texture = m_tsrc->getTexture(data->mode.texture);
 493                 video::IImage* image = driver->createImageFromData(
 494                          texture->getColorFormat(), texture->getSize(),
 495                          texture->lock(video::ETLM_READ_ONLY), true, false);
 496                 texture->unlock();
 497
 498                 auto dim = image->getDimension();
 499
 500                 map_image->fill(video::SColor(255, 0, 0, 0));
 501
 502                 image->copyTo(map_image,
 503                         irr::core::vector2d<int> {
 504                                 ((data->mode.map_size - (static_cast<int>(dim.Width))) >> 1)
 505                                         - data->pos.X / data->mode.scale,
 506                                 ((data->mode.map_size - (static_cast<int>(dim.Height))) >> 1)
 507                                         + data->pos.Z / data->mode.scale
 508                         });
 509                 image->drop();
 510         }
 511
 512         map_image->copyToScaling(minimap_image);
 513         map_image->drop();
 514
 515         video::IImage *minimap_mask = data->minimap_shape_round ?
 516                 data->minimap_mask_round : data->minimap_mask_square;
 517
 518         if (minimap_mask) {
 519                 for (s16 y = 0; y < MINIMAP_MAX_SY; y++)
 520                 for (s16 x = 0; x < MINIMAP_MAX_SX; x++) {
 521                         const video::SColor &mask_col = minimap_mask->getPixel(x, y);
 522                         if (!mask_col.getAlpha())
 523                                 minimap_image->setPixel(x, y, video::SColor(0,0,0,0));
 524                 }
 525         }
 526
 527         if (data->texture)
 528                 driver->removeTexture(data->texture);
 529         if (data->heightmap_texture)
 530                 driver->removeTexture(data->heightmap_texture);
 531
 532         data->texture = driver->addTexture("minimap__", minimap_image);
 533         data->heightmap_texture =
 534                 driver->addTexture("minimap_heightmap__", heightmap_image);
 535         minimap_image->drop();
 536         heightmap_image->drop();
 537
 538         data->map_invalidated = true;
 539
 540         return data->texture;
 541 }
 542
 543 v3f Minimap::getYawVec()
 544 {
 545         if (data->minimap_shape_round) {
 546                 return v3f(
 547                         std::cos(m_angle * core::DEGTORAD),
 548                         std::sin(m_angle * core::DEGTORAD),
 549                         1.0);
 550         }
 551
 552         return v3f(1.0, 0.0, 1.0);
 553 }
 554
 555 scene::SMeshBuffer *Minimap::getMinimapMeshBuffer()
 556 {
 557         scene::SMeshBuffer *buf = new scene::SMeshBuffer();
 558         buf->Vertices.set_used(4);
 559         buf->Indices.set_used(6);
 560         static const video::SColor c(255, 255, 255, 255);
 561
 562         buf->Vertices[0] = video::S3DVertex(-1, -1, 0, 0, 0, 1, c, 0, 1);
 563         buf->Vertices[1] = video::S3DVertex(-1,  1, 0, 0, 0, 1, c, 0, 0);
 564         buf->Vertices[2] = video::S3DVertex( 1,  1, 0, 0, 0, 1, c, 1, 0);
 565         buf->Vertices[3] = video::S3DVertex( 1, -1, 0, 0, 0, 1, c, 1, 1);
 566
 567         buf->Indices[0] = 0;
 568         buf->Indices[1] = 1;
 569         buf->Indices[2] = 2;
 570         buf->Indices[3] = 2;
 571         buf->Indices[4] = 3;
 572         buf->Indices[5] = 0;
 573
 574         return buf;
 575 }
 576
 577 void Minimap::drawMinimap()
 578 {
 579         // Non hud managed minimap drawing (legacy minimap)
 580         v2u32 screensize = RenderingEngine::getWindowSize();
 581         const u32 size = 0.25 * screensize.Y;
 582
 583         drawMinimap(core::rect<s32>(
 584                 screensize.X - size * 2 - 10, 10,
 585                 screensize.X - size - 10, size + 10));
 586 }
 587
 588 void Minimap::drawMinimap(core::rect<s32> rect) {
 589
 590         video::ITexture *minimap_texture = getMinimapTexture();
 591         if (!minimap_texture)
 592                 return;
 593
 594         if (data->mode.type == MINIMAP_TYPE_OFF)
 595                 return;
 596
 597         updateActiveMarkers();
 598
 599         core::rect<s32> oldViewPort = driver->getViewPort();
 600         core::matrix4 oldProjMat = driver->getTransform(video::ETS_PROJECTION);
 601         core::matrix4 oldViewMat = driver->getTransform(video::ETS_VIEW);
 602
 603         driver->setViewPort(rect);
 604         driver->setTransform(video::ETS_PROJECTION, core::matrix4());
 605         driver->setTransform(video::ETS_VIEW, core::matrix4());
 606
 607         core::matrix4 matrix;
 608         matrix.makeIdentity();
 609
 610         video::SMaterial &material = m_meshbuffer->getMaterial();
 611         material.setFlag(video::EMF_TRILINEAR_FILTER, true);
 612         material.Lighting = false;
 613         material.TextureLayer[0].Texture = minimap_texture;
 614         material.TextureLayer[1].Texture = data->heightmap_texture;
 615
 616         if (m_enable_shaders && data->mode.type == MINIMAP_TYPE_SURFACE) {
 617                 u16 sid = m_shdrsrc->getShader("minimap_shader", TILE_MATERIAL_ALPHA);
 618                 material.MaterialType = m_shdrsrc->getShaderInfo(sid).material;
 619         } else {
 620                 material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 621         }
 622
 623         if (data->minimap_shape_round)
 624                 matrix.setRotationDegrees(core::vector3df(0, 0, 360 - m_angle));
 625
 626         // Draw minimap
 627         driver->setTransform(video::ETS_WORLD, matrix);
 628         driver->setMaterial(material);
 629         driver->drawMeshBuffer(m_meshbuffer);
 630
 631         // Draw overlay
 632         video::ITexture *minimap_overlay = data->minimap_shape_round ?
 633                 data->minimap_overlay_round : data->minimap_overlay_square;
 634         material.TextureLayer[0].Texture = minimap_overlay;
 635         material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 636         driver->setMaterial(material);
 637         driver->drawMeshBuffer(m_meshbuffer);
 638
 639         // Draw player marker on minimap
 640         if (data->minimap_shape_round) {
 641                 matrix.setRotationDegrees(core::vector3df(0, 0, 0));
 642         } else {
 643                 matrix.setRotationDegrees(core::vector3df(0, 0, m_angle));
 644         }
 645
 646         material.TextureLayer[0].Texture = data->player_marker;
 647         driver->setTransform(video::ETS_WORLD, matrix);
 648         driver->setMaterial(material);
 649         driver->drawMeshBuffer(m_meshbuffer);
 650
 651         // Reset transformations
 652         driver->setTransform(video::ETS_VIEW, oldViewMat);
 653         driver->setTransform(video::ETS_PROJECTION, oldProjMat);
 654         driver->setViewPort(oldViewPort);
 655
 656         // Draw player markers
 657         v2s32 s_pos(rect.UpperLeftCorner.X, rect.UpperLeftCorner.Y);
 658         core::dimension2di imgsize(data->object_marker_red->getOriginalSize());
 659         core::rect<s32> img_rect(0, 0, imgsize.Width, imgsize.Height);
 660         static const video::SColor col(255, 255, 255, 255);
 661         static const video::SColor c[4] = {col, col, col, col};
 662         f32 sin_angle = std::sin(m_angle * core::DEGTORAD);
 663         f32 cos_angle = std::cos(m_angle * core::DEGTORAD);
 664         s32 marker_size2 =  0.025 * (float)rect.getWidth();;
 665         for (std::list<v2f>::const_iterator
 666                         i = m_active_markers.begin();
 667                         i != m_active_markers.end(); ++i) {
 668                 v2f posf = *i;
 669                 if (data->minimap_shape_round) {
 670                         f32 t1 = posf.X * cos_angle - posf.Y * sin_angle;
 671                         f32 t2 = posf.X * sin_angle + posf.Y * cos_angle;
 672                         posf.X = t1;
 673                         posf.Y = t2;
 674                 }
 675                 posf.X = (posf.X + 0.5) * (float)rect.getWidth();
 676                 posf.Y = (posf.Y + 0.5) * (float)rect.getHeight();
 677                 core::rect<s32> dest_rect(
 678                         s_pos.X + posf.X - marker_size2,
 679                         s_pos.Y + posf.Y - marker_size2,
 680                         s_pos.X + posf.X + marker_size2,
 681                         s_pos.Y + posf.Y + marker_size2);
 682                 driver->draw2DImage(data->object_marker_red, dest_rect,
 683                         img_rect, &dest_rect, &c[0], true);
 684         }
 685 }
 686
 687 MinimapMarker* Minimap::addMarker(scene::ISceneNode *parent_node)
 688 {
 689         MinimapMarker *m = new MinimapMarker(parent_node);
 690         m_markers.push_back(m);
 691         return m;
 692 }
 693
 694 void Minimap::removeMarker(MinimapMarker **m)
 695 {
 696         m_markers.remove(*m);
 697         delete *m;
 698         *m = nullptr;
 699 }
 700
 701 void Minimap::updateActiveMarkers()
 702 {
 703         video::IImage *minimap_mask = data->minimap_shape_round ?
 704                 data->minimap_mask_round : data->minimap_mask_square;
 705
 706         m_active_markers.clear();
 707         v3f cam_offset = intToFloat(client->getCamera()->getOffset(), BS);
 708         v3s16 pos_offset = data->pos - v3s16(data->mode.map_size / 2,
 709                         data->mode.scan_height / 2,
 710                         data->mode.map_size / 2);
 711
 712         for (MinimapMarker *marker : m_markers) {
 713                 v3s16 pos = floatToInt(marker->parent_node->getAbsolutePosition() +
 714                         cam_offset, BS) - pos_offset;
 715                 if (pos.X < 0 || pos.X > data->mode.map_size ||
 716                                 pos.Y < 0 || pos.Y > data->mode.scan_height ||
 717                                 pos.Z < 0 || pos.Z > data->mode.map_size) {
 718                         continue;
 719                 }
 720                 pos.X = ((float)pos.X / data->mode.map_size) * MINIMAP_MAX_SX;
 721                 pos.Z = ((float)pos.Z / data->mode.map_size) * MINIMAP_MAX_SY;
 722                 const video::SColor &mask_col = minimap_mask->getPixel(pos.X, pos.Z);
 723                 if (!mask_col.getAlpha()) {
 724                         continue;
 725                 }
 726
 727                 m_active_markers.emplace_back(((float)pos.X / (float)MINIMAP_MAX_SX) - 0.5,
 728                         (1.0 - (float)pos.Z / (float)MINIMAP_MAX_SY) - 0.5);
 729         }
 730 }
 731
 732 ////
 733 //// MinimapMapblock
 734 ////
 735
 736 void MinimapMapblock::getMinimapNodes(VoxelManipulator *vmanip, const v3s16 &pos)
 737 {
 738
 739         for (s16 x = 0; x < MAP_BLOCKSIZE; x++)
 740         for (s16 z = 0; z < MAP_BLOCKSIZE; z++) {
 741                 s16 air_count = 0;
 742                 bool surface_found = false;
 743                 MinimapPixel *mmpixel = &data[z * MAP_BLOCKSIZE + x];
 744
 745                 for (s16 y = MAP_BLOCKSIZE -1; y >= 0; y--) {
 746                         v3s16 p(x, y, z);
 747                         MapNode n = vmanip->getNodeNoEx(pos + p);
 748                         if (!surface_found && n.getContent() != CONTENT_AIR) {
 749                                 mmpixel->height = y;
 750                                 mmpixel->n = n;
 751                                 surface_found = true;
 752                         } else if (n.getContent() == CONTENT_AIR) {
 753                                 air_count++;
 754                         }
 755                 }
 756
 757                 if (!surface_found)
 758                         mmpixel->n = MapNode(CONTENT_AIR);
 759
 760                 mmpixel->air_count = air_count;
 761         }
 762 }