Move ClientMap to clientmap.{h,cpp}

1 files changed, 548 insertions, 0 deletions

diff --git a/src/clientmap.cpp b/src/clientmap.cpp
new file mode 100644
index 000000000..15a790f9a
--- /dev/null
+++ b/src/clientmap.cpp
@@ -0,0 +1,548 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2012 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 General Public License as published by
+the Free Software Foundation; either version 2 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 General Public License for more details.
+
+You should have received a copy of the GNU 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 "clientmap.h"
+#include "client.h"
+#include "mapblock_mesh.h"
+#include <IMaterialRenderer.h>
+#include "log.h"
+#include "mapsector.h"
+#include "main.h" // dout_client, g_settings
+#include "nodedef.h"
+#include "mapblock.h"
+#include "profiler.h"
+#include "settings.h"
+
+ClientMap::ClientMap(
+		Client *client,
+		IGameDef *gamedef,
+		MapDrawControl &control,
+		scene::ISceneNode* parent,
+		scene::ISceneManager* mgr,
+		s32 id
+):
+	Map(dout_client, gamedef),
+	scene::ISceneNode(parent, mgr, id),
+	m_client(client),
+	m_control(control),
+	m_camera_position(0,0,0),
+	m_camera_direction(0,0,1),
+	m_camera_fov(PI)
+{
+	m_camera_mutex.Init();
+	assert(m_camera_mutex.IsInitialized());
+	
+	m_box = core::aabbox3d<f32>(-BS*1000000,-BS*1000000,-BS*1000000,
+			BS*1000000,BS*1000000,BS*1000000);
+}
+
+ClientMap::~ClientMap()
+{
+	/*JMutexAutoLock lock(mesh_mutex);
+	
+	if(mesh != NULL)
+	{
+		mesh->drop();
+		mesh = NULL;
+	}*/
+}
+
+MapSector * ClientMap::emergeSector(v2s16 p2d)
+{
+	DSTACK(__FUNCTION_NAME);
+	// Check that it doesn't exist already
+	try{
+		return getSectorNoGenerate(p2d);
+	}
+	catch(InvalidPositionException &e)
+	{
+	}
+	
+	// Create a sector
+	ClientMapSector *sector = new ClientMapSector(this, p2d, m_gamedef);
+	
+	{
+		//JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
+		m_sectors.insert(p2d, sector);
+	}
+	
+	return sector;
+}
+
+#if 0
+void ClientMap::deSerializeSector(v2s16 p2d, std::istream &is)
+{
+	DSTACK(__FUNCTION_NAME);
+	ClientMapSector *sector = NULL;
+
+	//JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
+	
+	core::map<v2s16, MapSector*>::Node *n = m_sectors.find(p2d);
+
+	if(n != NULL)
+	{
+		sector = (ClientMapSector*)n->getValue();
+		assert(sector->getId() == MAPSECTOR_CLIENT);
+	}
+	else
+	{
+		sector = new ClientMapSector(this, p2d);
+		{
+			//JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
+			m_sectors.insert(p2d, sector);
+		}
+	}
+
+	sector->deSerialize(is);
+}
+#endif
+
+void ClientMap::OnRegisterSceneNode()
+{
+	if(IsVisible)
+	{
+		SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
+		SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT);
+	}
+
+	ISceneNode::OnRegisterSceneNode();
+}
+
+static bool isOccluded(Map *map, v3s16 p0, v3s16 p1, float step, float stepfac,
+		float start_off, float end_off, u32 needed_count, INodeDefManager *nodemgr)
+{
+	float d0 = (float)BS * p0.getDistanceFrom(p1);
+	v3s16 u0 = p1 - p0;
+	v3f uf = v3f(u0.X, u0.Y, u0.Z) * BS;
+	uf.normalize();
+	v3f p0f = v3f(p0.X, p0.Y, p0.Z) * BS;
+	u32 count = 0;
+	for(float s=start_off; s<d0+end_off; s+=step){
+		v3f pf = p0f + uf * s;
+		v3s16 p = floatToInt(pf, BS);
+		MapNode n = map->getNodeNoEx(p);
+		bool is_transparent = false;
+		const ContentFeatures &f = nodemgr->get(n);
+		if(f.solidness == 0)
+			is_transparent = (f.visual_solidness != 2);
+		else
+			is_transparent = (f.solidness != 2);
+		if(!is_transparent){
+			count++;
+			if(count >= needed_count)
+				return true;
+		}
+		step *= stepfac;
+	}
+	return false;
+}
+
+void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
+{
+	INodeDefManager *nodemgr = m_gamedef->ndef();
+
+	//m_dout<<DTIME<<"Rendering map..."<<std::endl;
+	DSTACK(__FUNCTION_NAME);
+
+	bool is_transparent_pass = pass == scene::ESNRP_TRANSPARENT;
+	
+	std::string prefix;
+	if(pass == scene::ESNRP_SOLID)
+		prefix = "CM: solid: ";
+	else
+		prefix = "CM: transparent: ";
+
+	/*
+		This is called two times per frame, reset on the non-transparent one
+	*/
+	if(pass == scene::ESNRP_SOLID)
+	{
+		m_last_drawn_sectors.clear();
+	}
+
+	/*
+		Get time for measuring timeout.
+		
+		Measuring time is very useful for long delays when the
+		machine is swapping a lot.
+	*/
+	int time1 = time(0);
+
+	/*
+		Get animation parameters
+	*/
+	float animation_time = m_client->getAnimationTime();
+	int crack = m_client->getCrackLevel();
+	u32 daynight_ratio = m_client->getDayNightRatio();
+
+	m_camera_mutex.Lock();
+	v3f camera_position = m_camera_position;
+	v3f camera_direction = m_camera_direction;
+	f32 camera_fov = m_camera_fov;
+	m_camera_mutex.Unlock();
+
+	/*
+		Get all blocks and draw all visible ones
+	*/
+
+	v3s16 cam_pos_nodes = floatToInt(camera_position, BS);
+	
+	v3s16 box_nodes_d = m_control.wanted_range * v3s16(1,1,1);
+
+	v3s16 p_nodes_min = cam_pos_nodes - box_nodes_d;
+	v3s16 p_nodes_max = cam_pos_nodes + box_nodes_d;
+
+	// Take a fair amount as we will be dropping more out later
+	// Umm... these additions are a bit strange but they are needed.
+	v3s16 p_blocks_min(
+			p_nodes_min.X / MAP_BLOCKSIZE - 3,
+			p_nodes_min.Y / MAP_BLOCKSIZE - 3,
+			p_nodes_min.Z / MAP_BLOCKSIZE - 3);
+	v3s16 p_blocks_max(
+			p_nodes_max.X / MAP_BLOCKSIZE + 1,
+			p_nodes_max.Y / MAP_BLOCKSIZE + 1,
+			p_nodes_max.Z / MAP_BLOCKSIZE + 1);
+	
+	u32 vertex_count = 0;
+	u32 meshbuffer_count = 0;
+	
+	// For limiting number of mesh animations per frame
+	u32 mesh_animate_count = 0;
+	u32 mesh_animate_count_far = 0;
+	
+	// Number of blocks in rendering range
+	u32 blocks_in_range = 0;
+	// Number of blocks occlusion culled
+	u32 blocks_occlusion_culled = 0;
+	// Number of blocks in rendering range but don't have a mesh
+	u32 blocks_in_range_without_mesh = 0;
+	// Blocks that had mesh that would have been drawn according to
+	// rendering range (if max blocks limit didn't kick in)
+	u32 blocks_would_have_drawn = 0;
+	// Blocks that were drawn and had a mesh
+	u32 blocks_drawn = 0;
+	// Blocks which had a corresponding meshbuffer for this pass
+	u32 blocks_had_pass_meshbuf = 0;
+	// Blocks from which stuff was actually drawn
+	u32 blocks_without_stuff = 0;
+
+	/*
+		Collect a set of blocks for drawing
+	*/
+	
+	core::map<v3s16, MapBlock*> drawset;
+
+	{
+	ScopeProfiler sp(g_profiler, prefix+"collecting blocks for drawing", SPT_AVG);
+
+	for(core::map<v2s16, MapSector*>::Iterator
+			si = m_sectors.getIterator();
+			si.atEnd() == false; si++)
+	{
+		MapSector *sector = si.getNode()->getValue();
+		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;
+		}
+
+		core::list< MapBlock * > sectorblocks;
+		sector->getBlocks(sectorblocks);
+		
+		/*
+			Loop through blocks in sector
+		*/
+
+		u32 sector_blocks_drawn = 0;
+		
+		core::list< MapBlock * >::Iterator i;
+		for(i=sectorblocks.begin(); i!=sectorblocks.end(); i++)
+		{
+			MapBlock *block = *i;
+
+			/*
+				Compare block position to camera position, skip
+				if not seen on display
+			*/
+			
+			float range = 100000 * BS;
+			if(m_control.range_all == false)
+				range = m_control.wanted_range * BS;
+
+			float d = 0.0;
+			if(isBlockInSight(block->getPos(), camera_position,
+					camera_direction, camera_fov,
+					range, &d) == false)
+			{
+				continue;
+			}
+
+			// This is ugly (spherical distance limit?)
+			/*if(m_control.range_all == false &&
+					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
+			*/
+
+			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(
+				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();
+				}
+			}
+
+			// Add to set
+			drawset[block->getPos()] = block;
+			
+			sector_blocks_drawn++;
+			blocks_drawn++;
+
+		} // foreach sectorblocks
+
+		if(sector_blocks_drawn != 0)
+			m_last_drawn_sectors[sp] = true;
+	}
+	} // ScopeProfiler
+	
+	/*
+		Draw the selected MapBlocks
+	*/
+
+	{
+	ScopeProfiler sp(g_profiler, prefix+"drawing blocks", SPT_AVG);
+
+	int timecheck_counter = 0;
+	for(core::map<v3s16, MapBlock*>::Iterator
+			i = drawset.getIterator();
+			i.atEnd() == false; i++)
+	{
+		{
+			timecheck_counter++;
+			if(timecheck_counter > 50)
+			{
+				timecheck_counter = 0;
+				int time2 = time(0);
+				if(time2 > time1 + 4)
+				{
+					infostream<<"ClientMap::renderMap(): "
+						"Rendering takes ages, returning."
+						<<std::endl;
+					return;
+				}
+			}
+		}
+		
+		MapBlock *block = i.getNode()->getValue();
+
+		/*
+			Draw the faces of the block
+		*/
+		{
+			//JMutexAutoLock lock(block->mesh_mutex);
+
+			MapBlockMesh *mapBlockMesh = block->mesh;
+			assert(mapBlockMesh);
+
+			scene::SMesh *mesh = mapBlockMesh->getMesh();
+			assert(mesh);
+
+			u32 c = mesh->getMeshBufferCount();
+			bool stuff_actually_drawn = false;
+			for(u32 i=0; i<c; i++)
+			{
+				scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
+				const video::SMaterial& material = buf->getMaterial();
+				video::IMaterialRenderer* rnd =
+						driver->getMaterialRenderer(material.MaterialType);
+				bool transparent = (rnd && rnd->isTransparent());
+				// Render transparent on transparent pass and likewise.
+				if(transparent == is_transparent_pass)
+				{
+					if(buf->getVertexCount() == 0)
+						errorstream<<"Block ["<<analyze_block(block)
+								<<"] contains an empty meshbuf"<<std::endl;
+					/*
+						This *shouldn't* hurt too much because Irrlicht
+						doesn't change opengl textures if the old
+						material has the same texture.
+					*/
+					driver->setMaterial(buf->getMaterial());
+					driver->drawMeshBuffer(buf);
+					vertex_count += buf->getVertexCount();
+					meshbuffer_count++;
+					stuff_actually_drawn = true;
+				}
+			}
+			if(stuff_actually_drawn)
+				blocks_had_pass_meshbuf++;
+			else
+				blocks_without_stuff++;
+		}
+	}
+	} // ScopeProfiler
+	
+	// Log only on solid pass because values are the same
+	if(pass == scene::ESNRP_SOLID){
+		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: animated meshes", mesh_animate_count);
+		g_profiler->avg("CM: animated meshes (far)", mesh_animate_count_far);
+	}
+	
+	g_profiler->avg(prefix+"vertices drawn", vertex_count);
+	if(blocks_had_pass_meshbuf != 0)
+		g_profiler->avg(prefix+"meshbuffers per block",
+				(float)meshbuffer_count / (float)blocks_had_pass_meshbuf);
+	if(blocks_drawn != 0)
+		g_profiler->avg(prefix+"empty blocks (frac)",
+				(float)blocks_without_stuff / blocks_drawn);
+
+	m_control.blocks_drawn = blocks_drawn;
+	m_control.blocks_would_have_drawn = blocks_would_have_drawn;
+
+	/*infostream<<"renderMap(): is_transparent_pass="<<is_transparent_pass
+			<<", rendered "<<vertex_count<<" vertices."<<std::endl;*/
+}
+
+void ClientMap::renderPostFx()
+{
+	INodeDefManager *nodemgr = m_gamedef->ndef();
+
+	// Sadly ISceneManager has no "post effects" render pass, in that case we
+	// could just register for that and handle it in renderMap().
+
+	m_camera_mutex.Lock();
+	v3f camera_position = m_camera_position;
+	m_camera_mutex.Unlock();
+
+	MapNode n = getNodeNoEx(floatToInt(camera_position, BS));
+
+	// - If the player is in a solid node, make everything black.
+	// - If the player is in liquid, draw a semi-transparent overlay.
+	const ContentFeatures& features = nodemgr->get(n);
+	video::SColor post_effect_color = features.post_effect_color;
+	if(features.solidness == 2 && g_settings->getBool("free_move") == false)
+	{
+		post_effect_color = video::SColor(255, 0, 0, 0);
+	}
+	if (post_effect_color.getAlpha() != 0)
+	{
+		// Draw a full-screen rectangle
+		video::IVideoDriver* driver = SceneManager->getVideoDriver();
+		v2u32 ss = driver->getScreenSize();
+		core::rect<s32> rect(0,0, ss.X, ss.Y);
+		driver->draw2DRectangle(post_effect_color, rect);
+	}
+}
+
+void ClientMap::PrintInfo(std::ostream &out)
+{
+	out<<"ClientMap: ";
+}
+
+