C++ MapBlock::resetUsageTimer方法代码示例

//.........这里部分代码省略.........
			
			/*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
					<<") became active"<<std::endl;*/

			MapBlock *block = m_map->getBlockNoCreateNoEx(p);
			if(block==NULL)
				continue;

			activateBlock(block);
		}
	}

	/*
		Mess around in active blocks
	*/
	if(m_active_blocks_nodemetadata_interval.step(dtime, 1.0))
	{
		float dtime = 1.0;

		for(core::map<v3s16, bool>::Iterator
				i = m_active_blocks.m_list.getIterator();
				i.atEnd()==false; i++)
		{
			v3s16 p = i.getNode()->getKey();
			
			/*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
					<<") being handled"<<std::endl;*/

			MapBlock *block = m_map->getBlockNoCreateNoEx(p);
			if(block==NULL)
				continue;

			// Reset block usage timer
			block->resetUsageTimer();
			
			// Set current time as timestamp
			block->setTimestampNoChangedFlag(m_game_time);

			// Run node metadata
			bool changed = block->m_node_metadata.step(dtime);
			if(changed)
			{
				MapEditEvent event;
				event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
				event.p = p;
				m_map->dispatchEvent(&event);

				block->setChangedFlag();
			}
		}
	}
	if(m_active_blocks_test_interval.step(dtime, 10.0))
	{
		//float dtime = 10.0;
		
		for(core::map<v3s16, bool>::Iterator
				i = m_active_blocks.m_list.getIterator();
				i.atEnd()==false; i++)
		{
			v3s16 p = i.getNode()->getKey();
			
			/*dstream<<"Server: Block ("<<p.X<<","<<p.Y<<","<<p.Z
					<<") being handled"<<std::endl;*/

			MapBlock *block = m_map->getBlockNoCreateNoEx(p);
			if(block==NULL)

//.........这里部分代码省略.........
					d - 0.5*BS*MAP_BLOCKSIZE > range)
				continue;*/

			blocks_in_range++;
			
			/*
				Ignore if mesh doesn't exist
			*/
			{
				//JMutexAutoLock lock(block->mesh_mutex);

				if(block->mesh == NULL){
					blocks_in_range_without_mesh++;
					continue;
				}
			}

			/*
				Occlusion culling
			*/

			// No occlusion culling when free_move is on and camera is
			// inside ground
			bool occlusion_culling_enabled = true;
			if(g_settings->getBool("free_move")){
				MapNode n = getNodeNoEx(cam_pos_nodes);
				if(n.getContent() == CONTENT_IGNORE ||
						nodemgr->get(n).solidness == 2)
					occlusion_culling_enabled = false;
			}

			v3s16 cpn = block->getPos() * MAP_BLOCKSIZE;
			cpn += v3s16(MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2);
			float step = BS*1;
			float stepfac = 1.1;
			float startoff = BS*1;
			float endoff = -BS*MAP_BLOCKSIZE*1.42*1.42;
			v3s16 spn = cam_pos_nodes + v3s16(0,0,0);
			s16 bs2 = MAP_BLOCKSIZE/2 + 1;
			u32 needed_count = 1;
			if(
				occlusion_culling_enabled &&
				isOccluded(this, spn, cpn + v3s16(0,0,0),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr)
			)
			{
				blocks_occlusion_culled++;
				continue;
			}
			
			// This block is in range. Reset usage timer.
			block->resetUsageTimer();

			// Limit block count in case of a sudden increase
			blocks_would_have_drawn++;
			if(blocks_drawn >= m_control.wanted_max_blocks
					&& m_control.range_all == false
					&& d > m_control.wanted_min_range * BS)
				continue;

			// Add to set
			block->refGrab();
			m_drawlist[block->getPos()] = block;

			sector_blocks_drawn++;
			blocks_drawn++;

		} // foreach sectorblocks

		if(sector_blocks_drawn != 0)
			m_last_drawn_sectors.insert(sp);
	}

	m_control.blocks_would_have_drawn = blocks_would_have_drawn;
	m_control.blocks_drawn = blocks_drawn;

	g_profiler->avg("CM: blocks in range", blocks_in_range);
	g_profiler->avg("CM: blocks occlusion culled", blocks_occlusion_culled);
	if(blocks_in_range != 0)
		g_profiler->avg("CM: blocks in range without mesh (frac)",
				(float)blocks_in_range_without_mesh/blocks_in_range);
	g_profiler->avg("CM: blocks drawn", blocks_drawn);
	g_profiler->avg("CM: wanted max blocks", m_control.wanted_max_blocks);
}

//.........这里部分代码省略.........
			// If this is true, inexistent block will be made from scratch
			bool generate = d <= d_max_gen;

			/*
				Don't generate or send if not in sight
				FIXME This only works if the client uses a small enough
				FOV setting. The default of 72 degrees is fine.
			*/

			f32 dist;
			if (!isBlockInSight(p, camera_pos, camera_dir, camera_fov, d_blocks_in_sight, &dist)) {
				continue;
			}

			/*
				Don't send already sent blocks
			*/
			{
				if(m_blocks_sent.find(p) != m_blocks_sent.end())
				{
					continue;
				}
			}

			/*
				Check if map has this block
			*/
			MapBlock *block = env->getMap().getBlockNoCreateNoEx(p);

			bool surely_not_found_on_disk = false;
			bool block_is_invalid = false;
			if (block) {
				// Reset usage timer, this block will be of use in the future.
				block->resetUsageTimer();

				// Block is dummy if data doesn't exist.
				// It means it has been not found from disk and not generated
				if (block->isDummy()) {
					surely_not_found_on_disk = true;
				}

				if (!block->isGenerated())
					block_is_invalid = true;

				/*
					If block is not close, don't send it unless it is near
					ground level.

					Block is near ground level if night-time mesh
					differs from day-time mesh.
				*/
				if (d >= d_opt) {
					if (!block->getDayNightDiff())
						continue;
				}

				if (occ_cull && !block_is_invalid &&
						env->getMap().isBlockOccluded(block, cam_pos_nodes)) {
					continue;
				}
			}

			/*
				If block has been marked to not exist on disk (dummy)
				and generating new ones is not wanted, skip block.
			*/

//.........这里部分代码省略.........
			occlusion_culling_enabled = false;
	}

	for (std::map<v2s16, MapSector*>::iterator si = m_sectors.begin();
			si != m_sectors.end(); ++si) {
		MapSector *sector = si->second;
		v2s16 sp = sector->getPos();

		if (m_control.range_all == false) {
			if (sp.X < p_blocks_min.X || sp.X > p_blocks_max.X ||
					sp.Y < p_blocks_min.Z || sp.Y > p_blocks_max.Z)
				continue;
		}

		MapBlockVect sectorblocks;
		sector->getBlocks(sectorblocks);

		/*
			Loop through blocks in sector
		*/

		u32 sector_blocks_drawn = 0;

		for (MapBlockVect::iterator i = sectorblocks.begin();
				i != sectorblocks.end(); ++i) {
			MapBlock *block = *i;

			/*
				Compare block position to camera position, skip
				if not seen on display
			*/

			if (block->mesh)
				block->mesh->updateCameraOffset(m_camera_offset);

			float range = 100000 * BS;
			if (!m_control.range_all)
				range = m_control.wanted_range * BS;

			float d = 0.0;
			if (!isBlockInSight(block->getPos(), camera_position,
					camera_direction, camera_fov, range, &d))
				continue;

			blocks_in_range++;

			/*
				Ignore if mesh doesn't exist
			*/
			if (!block->mesh) {
				blocks_in_range_without_mesh++;
				continue;
			}

			/*
				Occlusion culling
			*/
			if (occlusion_culling_enabled && isBlockOccluded(block, cam_pos_nodes)) {
				blocks_occlusion_culled++;
				continue;
			}

			// This block is in range. Reset usage timer.
			block->resetUsageTimer();

			// Limit block count in case of a sudden increase
			blocks_would_have_drawn++;
			if (blocks_drawn >= m_control.wanted_max_blocks &&
					!m_control.range_all &&
					d > m_control.wanted_range * BS)
				continue;

			// Add to set
			block->refGrab();
			m_drawlist[block->getPos()] = block;

			sector_blocks_drawn++;
			blocks_drawn++;
			if (d / BS > farthest_drawn)
				farthest_drawn = d / BS;

		} // foreach sectorblocks

		if (sector_blocks_drawn != 0)
			m_last_drawn_sectors.insert(sp);
	}

	m_control.blocks_would_have_drawn = blocks_would_have_drawn;
	m_control.blocks_drawn = blocks_drawn;
	m_control.farthest_drawn = farthest_drawn;

	g_profiler->avg("CM: blocks in range", blocks_in_range);
	g_profiler->avg("CM: blocks occlusion culled", blocks_occlusion_culled);
	if (blocks_in_range != 0)
		g_profiler->avg("CM: blocks in range without mesh (frac)",
				(float)blocks_in_range_without_mesh / blocks_in_range);
	g_profiler->avg("CM: blocks drawn", blocks_drawn);
	g_profiler->avg("CM: farthest drawn", farthest_drawn);
	g_profiler->avg("CM: wanted max blocks", m_control.wanted_max_blocks);
}

//.........这里部分代码省略.........
				FOV setting. The default of 72 degrees is fine.
			*/

			float camera_fov = (80.0*M_PI/180) * 4./3.;
			if(can_skip && isBlockInSight(p, camera_pos, camera_dir, camera_fov, 10000*BS) == false)
			{
				continue;
			}

			/*
				Don't send already sent blocks
			*/
			{
				if(m_blocks_sent.find(p) != m_blocks_sent.end() && m_blocks_sent[p] > 0 && m_blocks_sent[p] + (d <= 2 ? 1 : d*d*d) > m_uptime) {
					continue;
				}
			}

			/*
				Check if map has this block
			*/
			MapBlock *block = env->getMap().getBlockNoCreateNoEx(p);

			bool surely_not_found_on_disk = false;
			bool block_is_invalid = false;
			if(block != NULL)
			{

				if (m_blocks_sent[p] > 0 && m_blocks_sent[p] >= block->m_changed_timestamp) {
					continue;
				}

				// Reset usage timer, this block will be of use in the future.
				block->resetUsageTimer();

				// Block is dummy if data doesn't exist.
				// It means it has been not found from disk and not generated
				if(block->isDummy())
				{
					surely_not_found_on_disk = true;
				}

				if (block->getLightingExpired()) {
					continue;
				}
				// Block is valid if lighting is up-to-date and data exists
				if(block->isValid() == false)
				{
					block_is_invalid = true;
				}

				if(block->isGenerated() == false)
				{
					continue;
				}

				/*
					If block is not close, don't send it unless it is near
					ground level.

					Block is near ground level if night-time mesh
					differs from day-time mesh.
				*/
/*
				if(d >= 4)
				{

//.........这里部分代码省略.........
			float stepfac = 1.1;
			float startoff = BS*1;
			float endoff = -BS*MAP_BLOCKSIZE*1.42*1.42;
			v3s16 spn = cam_pos_nodes + v3s16(0,0,0);
			s16 bs2 = MAP_BLOCKSIZE/2 + 1;
			u32 needed_count = 1;
			if(
				occlusion_culling_enabled &&
				isOccluded(this, spn, cpn + v3s16(0,0,0),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr)
			)
			{
				blocks_occlusion_culled++;
				continue;
			}
			
			// This block is in range. Reset usage timer.
			block->resetUsageTimer();

			// Limit block count in case of a sudden increase
			blocks_would_have_drawn++;
			if(blocks_drawn >= m_control.wanted_max_blocks
					&& m_control.range_all == false
					&& d > m_control.wanted_min_range * BS)
				continue;

			// Mesh animation
			{
				//JMutexAutoLock lock(block->mesh_mutex);
				MapBlockMesh *mapBlockMesh = block->mesh;
				// Pretty random but this should work somewhat nicely
				bool faraway = d >= BS*50;
				//bool faraway = d >= m_control.wanted_range * BS;
				if(mapBlockMesh->isAnimationForced() ||
						!faraway ||
						mesh_animate_count_far < (m_control.range_all ? 200 : 50))
				{
					bool animated = mapBlockMesh->animate(
							faraway,
							animation_time,
							crack,
							daynight_ratio);
					if(animated)
						mesh_animate_count++;
					if(animated && faraway)
						mesh_animate_count_far++;
				}
				else
				{
					mapBlockMesh->decreaseAnimationForceTimer();

//.........这里部分代码省略.........
			auto lock = env->getServerMap().m_nothread_locker.lock_shared_rec();
#endif
			//VERY BAD COPYPASTE FROM clientmap.cpp!
			if( d >= 1 &&
				occlusion_culling_enabled &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(0,0,0),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
				isOccluded(&env->getMap(), spn, cpn + v3POS(-bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache)
			)
			{
				//infostream<<" occlusion player="<<cam_pos_nodes<<" d="<<d<<" block="<<cpn<<" total="<<blocks_occlusion_culled<<"/"<<num_blocks_selected<<std::endl;
				g_profiler->add("SMap: Occlusion skip", 1);
				blocks_occlusion_culled++;
				continue;
			}
		}

				// Reset usage timer, this block will be of use in the future.
				block->resetUsageTimer();

				if (block->getLightingExpired()) {
					//env->getServerMap().lighting_modified_blocks.set(p, nullptr);
					env->getServerMap().lighting_modified_add(p, d);
				}

				if (block->lighting_broken > 0 && (block_sent || d > 0))
					continue;

				// Block is valid if lighting is up-to-date and data exists
				if(block->isValid() == false)
				{
					block_is_invalid = true;
				}

				if(block->isGenerated() == false)
				{
					continue;
				}

				/*
					If block is not close, don't send it unless it is near
					ground level.

					Block is near ground level if night-time mesh
					differs from day-time mesh.
				*/
/*
				if(d >= 4)
				{
					if(block->getDayNightDiff() == false)
						continue;

//.........这里部分代码省略.........
			// inside ground
			bool occlusion_culling_enabled = true;
			if(g_settings->getBool("free_move")){
				MapNode n = getNodeNoEx(cam_pos_nodes);
				if(n.getContent() == CONTENT_IGNORE ||
						nodemgr->get(n).solidness == 2)
					occlusion_culling_enabled = false;
			}

			v3s16 cpn = block->getPos() * MAP_BLOCKSIZE;
			cpn += v3s16(MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2);

			float step = BS*1;
			float stepfac = 1.1;
			float startoff = BS*1;
			float endoff = -BS*MAP_BLOCKSIZE*1.42*1.42;
			v3s16 spn = cam_pos_nodes + v3s16(0,0,0);
			s16 bs2 = MAP_BLOCKSIZE/2 + 1;
			u32 needed_count = 1;
			if(
				occlusion_culling_enabled &&
				isOccluded(this, spn, cpn + v3s16(0,0,0),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr) &&
				isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,-bs2),
					step, stepfac, startoff, endoff, needed_count, nodemgr)
			)
			{
				blocks_occlusion_culled++;
				continue;
			}
			
			// This block is in range. Reset usage timer.
			block->resetUsageTimer();

			// Limit block count in case of a sudden increase
			blocks_would_have_drawn++;
			if(blocks_drawn >= m_control.wanted_max_blocks
					&& m_control.range_all == false
					&& d > m_control.wanted_min_range * BS)
				continue;

			if (m_control.farmesh && mesh_step != block->getMesh(mesh_step)->step) { //&& !block->mesh->transparent
				m_client->addUpdateMeshTask(block->getPos(), false, mesh_step == 1);
			}

			block->getMesh(mesh_step)->incrementUsageTimer(dtime);

			// Add to set
			block->refGrab();
			drawlist[block->getPos()] = block;

			blocks_drawn++;
			if(d/BS > farthest_drawn)
				farthest_drawn = d/BS;

		if (porting::getTimeMs() > end_ms) {
			m_drawlist_last = n;
			break;
		}
	}
	}
	if (!calls)
		m_drawlist_last = 0;

	if (m_drawlist_last)
		return;

	for (auto & ir : *m_drawlist)
		ir.second->refDrop();

	m_drawlist->clear();
	m_drawlist = m_drawlist_current ? &m_drawlist_1 : &m_drawlist_0;

	m_control.blocks_would_have_drawn = blocks_would_have_drawn;
	m_control.blocks_drawn = blocks_drawn;
	m_control.farthest_drawn = farthest_drawn;

	g_profiler->avg("CM: blocks in range", blocks_in_range);
	g_profiler->avg("CM: blocks occlusion culled", blocks_occlusion_culled);
	if(blocks_in_range != 0)
		g_profiler->avg("CM: blocks in range without mesh (frac)",
				(float)blocks_in_range_without_mesh/blocks_in_range);
	g_profiler->avg("CM: blocks drawn", blocks_drawn);
	g_profiler->avg("CM: farthest drawn", farthest_drawn);
	g_profiler->avg("CM: wanted max blocks", m_control.wanted_max_blocks);
}