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Diffstat (limited to 'src/client/minimap.cpp')
| -rw-r--r-- | src/client/minimap.cpp | 624 |
1 files changed, 624 insertions, 0 deletions
diff --git a/src/client/minimap.cpp b/src/client/minimap.cpp new file mode 100644 index 000000000..4d83c088a --- /dev/null +++ b/src/client/minimap.cpp @@ -0,0 +1,624 @@ +/* +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 <cmath> +#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( + std::cos(m_angle * core::DEGTORAD), + std::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); + + // Draw player marker on minimap + if (data->minimap_shape_round) { + matrix.setRotationDegrees(core::vector3df(0, 0, 0)); + } else { + 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 = std::sin(m_angle * core::DEGTORAD); + f32 cos_angle = std::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; + } +} |