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- /*
- Minetest
- Copyright (C) 2010-2015 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 "minimap.h"
- #include "client.h"
- #include "clientmap.h"
- #include "settings.h"
- #include "shader.h"
- #include "mapblock.h"
- #include "client/renderingengine.h"
- ////
- //// MinimapUpdateThread
- ////
- MinimapUpdateThread::~MinimapUpdateThread()
- {
- for (auto &it : m_blocks_cache) {
- delete it.second;
- }
- for (auto &q : m_update_queue) {
- 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 (QueuedMinimapUpdate &q : m_update_queue) {
- 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<std::map<v3s16, MinimapMapblock*>::iterator, bool>
- result = m_blocks_cache.insert(std::make_pair(update.pos, update.data));
- if (!result.second) {
- delete result.first->second;
- result.first->second = update.data;
- }
- } else {
- std::map<v3s16, MinimapMapblock *>::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->map_invalidated = false;
- }
- }
- void MinimapUpdateThread::getMap(v3s16 pos, s16 size, s16 height)
- {
- v3s16 pos_min(pos.X - size / 2, pos.Y - height / 2, pos.Z - size / 2);
- v3s16 pos_max(pos_min.X + size - 1, pos.Y + height / 2, pos_min.Z + size - 1);
- v3s16 blockpos_min = getNodeBlockPos(pos_min);
- v3s16 blockpos_max = getNodeBlockPos(pos_max);
- // clear the map
- for (int z = 0; z < size; z++)
- for (int x = 0; x < size; x++) {
- MinimapPixel &mmpixel = data->minimap_scan[x + z * size];
- mmpixel.air_count = 0;
- mmpixel.height = 0;
- mmpixel.n = MapNode(CONTENT_AIR);
- }
- // draw the map
- v3s16 blockpos;
- for (blockpos.Z = blockpos_min.Z; blockpos.Z <= blockpos_max.Z; ++blockpos.Z)
- for (blockpos.Y = blockpos_min.Y; blockpos.Y <= blockpos_max.Y; ++blockpos.Y)
- for (blockpos.X = blockpos_min.X; blockpos.X <= blockpos_max.X; ++blockpos.X) {
- std::map<v3s16, MinimapMapblock *>::const_iterator pblock =
- m_blocks_cache.find(blockpos);
- if (pblock == m_blocks_cache.end())
- continue;
- const MinimapMapblock &block = *pblock->second;
- v3s16 block_node_min(blockpos * MAP_BLOCKSIZE);
- v3s16 block_node_max(block_node_min + MAP_BLOCKSIZE - 1);
- // clip
- v3s16 range_min = componentwise_max(block_node_min, pos_min);
- v3s16 range_max = componentwise_min(block_node_max, pos_max);
- v3s16 pos;
- pos.Y = range_min.Y;
- for (pos.Z = range_min.Z; pos.Z <= range_max.Z; ++pos.Z)
- for (pos.X = range_min.X; pos.X <= range_max.X; ++pos.X) {
- v3s16 inblock_pos = pos - block_node_min;
- const MinimapPixel &in_pixel =
- block.data[inblock_pos.Z * MAP_BLOCKSIZE + inblock_pos.X];
- v3s16 inmap_pos = pos - pos_min;
- MinimapPixel &out_pixel =
- data->minimap_scan[inmap_pos.X + inmap_pos.Z * size];
- out_pixel.air_count += in_pixel.air_count;
- if (in_pixel.n.param0 != CONTENT_AIR) {
- out_pixel.n = in_pixel.n;
- out_pixel.height = inmap_pos.Y + in_pixel.height;
- }
- }
- }
- }
- ////
- //// Mapper
- ////
- Minimap::Minimap(Client *client)
- {
- this->client = client;
- this->driver = RenderingEngine::get_video_driver();
- 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->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<s32>(0, 0),
- core::dimension2d<u32>(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<s32>(0, 0),
- core::dimension2d<u32>(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();
- }
- Minimap::~Minimap()
- {
- 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 Minimap::addBlock(v3s16 pos, MinimapMapblock *data)
- {
- m_minimap_update_thread->enqueueBlock(pos, data);
- }
- void Minimap::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 Minimap::setMinimapShape(MinimapShape shape)
- {
- MutexAutoLock lock(m_mutex);
- if (shape == MINIMAP_SHAPE_SQUARE)
- data->minimap_shape_round = false;
- else if (shape == MINIMAP_SHAPE_ROUND)
- data->minimap_shape_round = true;
- g_settings->setBool("minimap_shape_round", data->minimap_shape_round);
- m_minimap_update_thread->deferUpdate();
- }
- MinimapShape Minimap::getMinimapShape()
- {
- if (data->minimap_shape_round) {
- return MINIMAP_SHAPE_ROUND;
- }
- return MINIMAP_SHAPE_SQUARE;
- }
- void Minimap::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 Minimap::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 Minimap::setAngle(f32 angle)
- {
- m_angle = angle;
- }
- void Minimap::blitMinimapPixelsToImageRadar(video::IImage *map_image)
- {
- video::SColor c(240, 0, 0, 0);
- 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];
- if (mmpixel->air_count > 0)
- c.setGreen(core::clamp(core::round32(32 + mmpixel->air_count * 8), 0, 255));
- else
- c.setGreen(0);
- map_image->setPixel(x, data->map_size - z - 1, c);
- }
- }
- void Minimap::blitMinimapPixelsToImageSurface(
- video::IImage *map_image, video::IImage *heightmap_image)
- {
- // This variable creation/destruction has a 1% cost on rendering minimap
- video::SColor tilecolor;
- 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];
- const ContentFeatures &f = m_ndef->get(mmpixel->n);
- const TileDef *tile = &f.tiledef[0];
- // Color of the 0th tile (mostly this is the topmost)
- if(tile->has_color)
- tilecolor = tile->color;
- else
- mmpixel->n.getColor(f, &tilecolor);
- tilecolor.setRed(tilecolor.getRed() * f.minimap_color.getRed() / 255);
- tilecolor.setGreen(tilecolor.getGreen() * f.minimap_color.getGreen() / 255);
- tilecolor.setBlue(tilecolor.getBlue() * f.minimap_color.getBlue() / 255);
- tilecolor.setAlpha(240);
- map_image->setPixel(x, data->map_size - z - 1, tilecolor);
- u32 h = mmpixel->height;
- heightmap_image->setPixel(x,data->map_size - z - 1,
- video::SColor(255, h, h, h));
- }
- }
- video::ITexture *Minimap::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<u32> 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<u32>(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++) {
- const 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 Minimap::getYawVec()
- {
- if (data->minimap_shape_round) {
- return v3f(
- cos(m_angle * core::DEGTORAD),
- sin(m_angle * core::DEGTORAD),
- 1.0);
- }
- return v3f(1.0, 0.0, 1.0);
- }
- scene::SMeshBuffer *Minimap::getMinimapMeshBuffer()
- {
- scene::SMeshBuffer *buf = new scene::SMeshBuffer();
- buf->Vertices.set_used(4);
- buf->Indices.set_used(6);
- static const 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 Minimap::drawMinimap()
- {
- video::ITexture *minimap_texture = getMinimapTexture();
- if (!minimap_texture)
- return;
- updateActiveMarkers();
- v2u32 screensize = RenderingEngine::get_instance()->getWindowSize();
- const u32 size = 0.25 * screensize.Y;
- core::rect<s32> oldViewPort = driver->getViewPort();
- core::matrix4 oldProjMat = driver->getTransform(video::ETS_PROJECTION);
- core::matrix4 oldViewMat = driver->getTransform(video::ETS_VIEW);
- driver->setViewPort(core::rect<s32>(
- 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<s32> 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<v2f>::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<s32> 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 Minimap::updateActiveMarkers()
- {
- video::IImage *minimap_mask = data->minimap_shape_round ?
- data->minimap_mask_round : data->minimap_mask_square;
- const std::list<Nametag *> &nametags = client->getCamera()->getNametags();
- m_active_markers.clear();
- for (Nametag *nametag : nametags) {
- 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;
- const video::SColor &mask_col = minimap_mask->getPixel(pos.X, pos.Z);
- if (!mask_col.getAlpha()) {
- continue;
- }
- m_active_markers.emplace_back(((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, const 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->n = n;
- surface_found = true;
- } else if (n.getContent() == CONTENT_AIR) {
- air_count++;
- }
- }
- if (!surface_found)
- mmpixel->n = MapNode(CONTENT_AIR);
- mmpixel->air_count = air_count;
- }
- }
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