/* Minetest Copyright (C) 2010-2015 celeron55, Perttu Ahola 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 "minimap.h" #include "threading/mutex_auto_lock.h" #include "threading/semaphore.h" #include "clientmap.h" #include "settings.h" #include "nodedef.h" #include "porting.h" #include "util/numeric.h" #include "util/string.h" #include //// //// MinimapUpdateThread //// MinimapUpdateThread::~MinimapUpdateThread() { for (std::map::iterator it = m_blocks_cache.begin(); it != m_blocks_cache.end(); ++it) { delete it->second; } for (std::deque::iterator it = m_update_queue.begin(); it != m_update_queue.end(); ++it) { QueuedMinimapUpdate &q = *it; delete q.data; } } bool MinimapUpdateThread::pushBlockUpdate(v3s16 pos, MinimapMapblock *data) { MutexAutoLock lock(m_queue_mutex); // Find if block is already in queue. // If it is, update the data and quit. for (std::deque::iterator it = m_update_queue.begin(); it != m_update_queue.end(); ++it) { QueuedMinimapUpdate &q = *it; if (q.pos == pos) { delete q.data; q.data = data; return false; } } // Add the block QueuedMinimapUpdate q; q.pos = pos; q.data = data; m_update_queue.push_back(q); return true; } bool MinimapUpdateThread::popBlockUpdate(QueuedMinimapUpdate *update) { MutexAutoLock lock(m_queue_mutex); if (m_update_queue.empty()) return false; *update = m_update_queue.front(); m_update_queue.pop_front(); return true; } void MinimapUpdateThread::enqueueBlock(v3s16 pos, MinimapMapblock *data) { pushBlockUpdate(pos, data); deferUpdate(); } void MinimapUpdateThread::doUpdate() { QueuedMinimapUpdate update; while (popBlockUpdate(&update)) { if (update.data) { // Swap two values in the map using single lookup std::pair::iterator, bool> result = m_blocks_cache.insert(std::make_pair(update.pos, update.data)); if (result.second == false) { delete result.first->second; result.first->second = update.data; } } else { std::map::iterator it; it = m_blocks_cache.find(update.pos); if (it != m_blocks_cache.end()) { delete it->second; m_blocks_cache.erase(it); } } } if (data->map_invalidated && data->mode != MINIMAP_MODE_OFF) { getMap(data->pos, data->map_size, data->scan_height, data->is_radar); data->map_invalidated = false; } } MinimapPixel *MinimapUpdateThread::getMinimapPixel(v3s16 pos, s16 scan_height, s16 *pixel_height) { s16 height = scan_height - MAP_BLOCKSIZE; v3s16 blockpos_max, blockpos_min, relpos; getNodeBlockPosWithOffset( v3s16(pos.X, pos.Y - scan_height / 2, pos.Z), blockpos_min, relpos); getNodeBlockPosWithOffset( v3s16(pos.X, pos.Y + scan_height / 2, pos.Z), blockpos_max, relpos); for (s16 i = blockpos_max.Y; i > blockpos_min.Y - 1; i--) { std::map::iterator it = m_blocks_cache.find(v3s16(blockpos_max.X, i, blockpos_max.Z)); if (it != m_blocks_cache.end()) { MinimapMapblock *mmblock = it->second; MinimapPixel *pixel = &mmblock->data[relpos.Z * MAP_BLOCKSIZE + relpos.X]; if (pixel->id != CONTENT_AIR) { *pixel_height = height + pixel->height; return pixel; } } height -= MAP_BLOCKSIZE; } return NULL; } s16 MinimapUpdateThread::getAirCount(v3s16 pos, s16 height) { s16 air_count = 0; v3s16 blockpos_max, blockpos_min, relpos; getNodeBlockPosWithOffset( v3s16(pos.X, pos.Y - height / 2, pos.Z), blockpos_min, relpos); getNodeBlockPosWithOffset( v3s16(pos.X, pos.Y + height / 2, pos.Z), blockpos_max, relpos); for (s16 i = blockpos_max.Y; i > blockpos_min.Y - 1; i--) { std::map::iterator it = m_blocks_cache.find(v3s16(blockpos_max.X, i, blockpos_max.Z)); if (it != m_blocks_cache.end()) { MinimapMapblock *mmblock = it->second; MinimapPixel *pixel = &mmblock->data[relpos.Z * MAP_BLOCKSIZE + relpos.X]; air_count += pixel->air_count; } } return air_count; } void MinimapUpdateThread::getMap(v3s16 pos, s16 size, s16 height, bool is_radar) { v3s16 p = v3s16(pos.X - size / 2, pos.Y, pos.Z - size / 2); for (s16 x = 0; x < size; x++) for (s16 z = 0; z < size; z++) { u16 id = CONTENT_AIR; MinimapPixel *mmpixel = &data->minimap_scan[x + z * size]; if (!is_radar) { s16 pixel_height = 0; MinimapPixel *cached_pixel = getMinimapPixel(v3s16(p.X + x, p.Y, p.Z + z), height, &pixel_height); if (cached_pixel) { id = cached_pixel->id; mmpixel->height = pixel_height; } } else { mmpixel->air_count = getAirCount(v3s16(p.X + x, p.Y, p.Z + z), height); } mmpixel->id = id; } } //// //// Mapper //// Mapper::Mapper(IrrlichtDevice *device, Client *client) { this->client = client; this->driver = device->getVideoDriver(); this->m_tsrc = client->getTextureSource(); this->m_shdrsrc = client->getShaderSource(); this->m_ndef = client->getNodeDefManager(); m_angle = 0.f; // Initialize static settings m_enable_shaders = g_settings->getBool("enable_shaders"); m_surface_mode_scan_height = g_settings->getBool("minimap_double_scan_height") ? 256 : 128; // Initialize minimap data data = new MinimapData; data->mode = MINIMAP_MODE_OFF; data->is_radar = false; data->map_invalidated = true; data->heightmap_image = NULL; data->minimap_image = NULL; data->texture = NULL; data->heightmap_texture = NULL; data->minimap_shape_round = g_settings->getBool("minimap_shape_round"); // Get round minimap textures data->minimap_mask_round = driver->createImage( m_tsrc->getTexture("minimap_mask_round.png"), core::position2d(0, 0), core::dimension2d(MINIMAP_MAX_SX, MINIMAP_MAX_SY)); data->minimap_overlay_round = m_tsrc->getTexture("minimap_overlay_round.png"); // Get square minimap textures data->minimap_mask_square = driver->createImage( m_tsrc->getTexture("minimap_mask_square.png"), core::position2d(0, 0), core::dimension2d(MINIMAP_MAX_SX, MINIMAP_MAX_SY)); data->minimap_overlay_square = m_tsrc->getTexture("minimap_overlay_square.png"); // Create player marker texture data->player_marker = m_tsrc->getTexture("player_marker.png"); // Create object marker texture data->object_marker_red = m_tsrc->getTexture("object_marker_red.png"); // Create mesh buffer for minimap m_meshbuffer = getMinimapMeshBuffer(); // Initialize and start thread m_minimap_update_thread = new MinimapUpdateThread(); m_minimap_update_thread->data = data; m_minimap_update_thread->start(); } Mapper::~Mapper() { m_minimap_update_thread->stop(); m_minimap_update_thread->wait(); m_meshbuffer->drop(); data->minimap_mask_round->drop(); data->minimap_mask_square->drop(); driver->removeTexture(data->texture); driver->removeTexture(data->heightmap_texture); driver->removeTexture(data->minimap_overlay_round); driver->removeTexture(data->minimap_overlay_square); driver->removeTexture(data->object_marker_red); delete data; delete m_minimap_update_thread; } void Mapper::addBlock(v3s16 pos, MinimapMapblock *data) { m_minimap_update_thread->enqueueBlock(pos, data); } MinimapMode Mapper::getMinimapMode() { return data->mode; } void Mapper::toggleMinimapShape() { MutexAutoLock lock(m_mutex); data->minimap_shape_round = !data->minimap_shape_round; g_settings->setBool("minimap_shape_round", data->minimap_shape_round); m_minimap_update_thread->deferUpdate(); } void Mapper::setMinimapMode(MinimapMode mode) { static const MinimapModeDef modedefs[MINIMAP_MODE_COUNT] = { {false, 0, 0}, {false, m_surface_mode_scan_height, 256}, {false, m_surface_mode_scan_height, 128}, {false, m_surface_mode_scan_height, 64}, {true, 32, 128}, {true, 32, 64}, {true, 32, 32} }; if (mode >= MINIMAP_MODE_COUNT) return; MutexAutoLock lock(m_mutex); data->is_radar = modedefs[mode].is_radar; data->scan_height = modedefs[mode].scan_height; data->map_size = modedefs[mode].map_size; data->mode = mode; m_minimap_update_thread->deferUpdate(); } void Mapper::setPos(v3s16 pos) { bool do_update = false; { MutexAutoLock lock(m_mutex); if (pos != data->old_pos) { data->old_pos = data->pos; data->pos = pos; do_update = true; } } if (do_update) m_minimap_update_thread->deferUpdate(); } void Mapper::setAngle(f32 angle) { m_angle = angle; } void Mapper::blitMinimapPixelsToImageRadar(video::IImage *map_image) { for (s16 x = 0; x < data->map_size; x++) for (s16 z = 0; z < data->map_size; z++) { MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->map_size]; video::SColor c(240, 0, 0, 0); if (mmpixel->air_count > 0) c.setGreen(core::clamp(core::round32(32 + mmpixel->air_count * 8), 0, 255)); map_image->setPixel(x, data->map_size - z - 1, c); } } void Mapper::blitMinimapPixelsToImageSurface( video::IImage *map_image, video::IImage *heightmap_image) { for (s16 x = 0; x < data->map_size; x++) for (s16 z = 0; z < data->map_size; z++) { MinimapPixel *mmpixel = &data->minimap_scan[x + z * data->map_size]; video::SColor c = m_ndef->get(mmpixel->id).minimap_color; c.setAlpha(240); map_image->setPixel(x, data->map_size - z - 1, c); u32 h = mmpixel->height; heightmap_image->setPixel(x,data->map_size - z - 1, video::SColor(255, h, h, h)); } } video::ITexture *Mapper::getMinimapTexture() { // update minimap textures when new scan is ready if (data->map_invalidated) return data->texture; // create minimap and heightmap images in memory core::dimension2d dim(data->map_size, data->map_size); video::IImage *map_image = driver->createImage(video::ECF_A8R8G8B8, dim); video::IImage *heightmap_image = driver->createImage(video::ECF_A8R8G8B8, dim); video::IImage *minimap_image = driver->createImage(video::ECF_A8R8G8B8, core::dimension2d(MINIMAP_MAX_SX, MINIMAP_MAX_SY)); // Blit MinimapPixels to images if (data->is_radar) blitMinimapPixelsToImageRadar(map_image); else blitMinimapPixelsToImageSurface(map_image, heightmap_image); map_image->copyToScaling(minimap_image); map_image->drop(); video::IImage *minimap_mask = data->minimap_shape_round ? data->minimap_mask_round : data->minimap_mask_square; if (minimap_mask) { for (s16 y = 0; y < MINIMAP_MAX_SY; y++) for (s16 x = 0; x < MINIMAP_MAX_SX; x++) { video::SColor mask_col = minimap_mask->getPixel(x, y); if (!mask_col.getAlpha()) minimap_image->setPixel(x, y, video::SColor(0,0,0,0)); } } if (data->texture) driver->removeTexture(data->texture); if (data->heightmap_texture) driver->removeTexture(data->heightmap_texture); data->texture = driver->addTexture("minimap__", minimap_image); data->heightmap_texture = driver->addTexture("minimap_heightmap__", heightmap_image); minimap_image->drop(); heightmap_image->drop(); data->map_invalidated = true; return data->texture; } v3f Mapper::getYawVec() { if (data->minimap_shape_round) { return v3f( cos(m_angle * core::DEGTORAD), sin(m_angle * core::DEGTORAD), 1.0); } else { return v3f(1.0, 0.0, 1.0); } } scene::SMeshBuffer *Mapper::getMinimapMeshBuffer() { scene::SMeshBuffer *buf = new scene::SMeshBuffer(); buf->Vertices.set_used(4); buf->Indices.set_used(6); video::SColor c(255, 255, 255, 255); buf->Vertices[0] = video::S3DVertex(-1, -1, 0, 0, 0, 1, c, 0, 1); buf->Vertices[1] = video::S3DVertex(-1, 1, 0, 0, 0, 1, c, 0, 0); buf->Vertices[2] = video::S3DVertex( 1, 1, 0, 0, 0, 1, c, 1, 0); buf->Vertices[3] = video::S3DVertex( 1, -1, 0, 0, 0, 1, c, 1, 1); buf->Indices[0] = 0; buf->Indices[1] = 1; buf->Indices[2] = 2; buf->Indices[3] = 2; buf->Indices[4] = 3; buf->Indices[5] = 0; return buf; } void Mapper::drawMinimap() { video::ITexture *minimap_texture = getMinimapTexture(); if (!minimap_texture) return; updateActiveMarkers(); v2u32 screensize = porting::getWindowSize(); const u32 size = 0.25 * screensize.Y; core::rect oldViewPort = driver->getViewPort(); core::matrix4 oldProjMat = driver->getTransform(video::ETS_PROJECTION); core::matrix4 oldViewMat = driver->getTransform(video::ETS_VIEW); driver->setViewPort(core::rect( screensize.X - size - 10, 10, screensize.X - 10, size + 10)); driver->setTransform(video::ETS_PROJECTION, core::matrix4()); driver->setTransform(video::ETS_VIEW, core::matrix4()); core::matrix4 matrix; matrix.makeIdentity(); video::SMaterial &material = m_meshbuffer->getMaterial(); material.setFlag(video::EMF_TRILINEAR_FILTER, true); material.Lighting = false; material.TextureLayer[0].Texture = minimap_texture; material.TextureLayer[1].Texture = data->heightmap_texture; if (m_enable_shaders && !data->is_radar) { u16 sid = m_shdrsrc->getShader("minimap_shader", 1, 1); material.MaterialType = m_shdrsrc->getShaderInfo(sid).material; } else { material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL; } if (data->minimap_shape_round) matrix.setRotationDegrees(core::vector3df(0, 0, 360 - m_angle)); // Draw minimap driver->setTransform(video::ETS_WORLD, matrix); driver->setMaterial(material); driver->drawMeshBuffer(m_meshbuffer); // Draw overlay video::ITexture *minimap_overlay = data->minimap_shape_round ? data->minimap_overlay_round : data->minimap_overlay_square; material.TextureLayer[0].Texture = minimap_overlay; material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL; driver->setMaterial(material); driver->drawMeshBuffer(m_meshbuffer); // If round minimap, draw player marker if (!data->minimap_shape_round) { matrix.setRotationDegrees(core::vector3df(0, 0, m_angle)); material.TextureLayer[0].Texture = data->player_marker; driver->setTransform(video::ETS_WORLD, matrix); driver->setMaterial(material); driver->drawMeshBuffer(m_meshbuffer); } // Reset transformations driver->setTransform(video::ETS_VIEW, oldViewMat); driver->setTransform(video::ETS_PROJECTION, oldProjMat); driver->setViewPort(oldViewPort); // Draw player markers v2s32 s_pos(screensize.X - size - 10, 10); core::dimension2di imgsize(data->object_marker_red->getOriginalSize()); core::rect img_rect(0, 0, imgsize.Width, imgsize.Height); static const video::SColor col(255, 255, 255, 255); static const video::SColor c[4] = {col, col, col, col}; f32 sin_angle = sin(m_angle * core::DEGTORAD); f32 cos_angle = cos(m_angle * core::DEGTORAD); s32 marker_size2 = 0.025 * (float)size; for (std::list::const_iterator i = m_active_markers.begin(); i != m_active_markers.end(); ++i) { v2f posf = *i; if (data->minimap_shape_round) { f32 t1 = posf.X * cos_angle - posf.Y * sin_angle; f32 t2 = posf.X * sin_angle + posf.Y * cos_angle; posf.X = t1; posf.Y = t2; } posf.X = (posf.X + 0.5) * (float)size; posf.Y = (posf.Y + 0.5) * (float)size; core::rect dest_rect( s_pos.X + posf.X - marker_size2, s_pos.Y + posf.Y - marker_size2, s_pos.X + posf.X + marker_size2, s_pos.Y + posf.Y + marker_size2); driver->draw2DImage(data->object_marker_red, dest_rect, img_rect, &dest_rect, &c[0], true); } } void Mapper::updateActiveMarkers () { video::IImage *minimap_mask = data->minimap_shape_round ? data->minimap_mask_round : data->minimap_mask_square; std::list *nametags = client->getCamera()->getNametags(); m_active_markers.clear(); for (std::list::const_iterator i = nametags->begin(); i != nametags->end(); ++i) { Nametag *nametag = *i; v3s16 pos = floatToInt(nametag->parent_node->getPosition() + intToFloat(client->getCamera()->getOffset(), BS), BS); pos -= data->pos - v3s16(data->map_size / 2, data->scan_height / 2, data->map_size / 2); if (pos.X < 0 || pos.X > data->map_size || pos.Y < 0 || pos.Y > data->scan_height || pos.Z < 0 || pos.Z > data->map_size) { continue; } pos.X = ((float)pos.X / data->map_size) * MINIMAP_MAX_SX; pos.Z = ((float)pos.Z / data->map_size) * MINIMAP_MAX_SY; video::SColor mask_col = minimap_mask->getPixel(pos.X, pos.Z); if (!mask_col.getAlpha()) { continue; } m_active_markers.push_back(v2f(((float)pos.X / (float)MINIMAP_MAX_SX) - 0.5, (1.0 - (float)pos.Z / (float)MINIMAP_MAX_SY) - 0.5)); } } //// //// MinimapMapblock //// void MinimapMapblock::getMinimapNodes(VoxelManipulator *vmanip, v3s16 pos) { for (s16 x = 0; x < MAP_BLOCKSIZE; x++) for (s16 z = 0; z < MAP_BLOCKSIZE; z++) { s16 air_count = 0; bool surface_found = false; MinimapPixel *mmpixel = &data[z * MAP_BLOCKSIZE + x]; for (s16 y = MAP_BLOCKSIZE -1; y >= 0; y--) { v3s16 p(x, y, z); MapNode n = vmanip->getNodeNoEx(pos + p); if (!surface_found && n.getContent() != CONTENT_AIR) { mmpixel->height = y; mmpixel->id = n.getContent(); surface_found = true; } else if (n.getContent() == CONTENT_AIR) { air_count++; } } if (!surface_found) mmpixel->id = CONTENT_AIR; mmpixel->air_count = air_count; } }