C++ ITextureSource::getTextureForMesh方法代码示例

bool MapBlockMesh::animate(bool faraway, float time, int crack, u32 daynight_ratio)
{

	if(!m_has_animation)
	{
		m_animation_force_timer = 100000;
		return false;
	}

	m_animation_force_timer = myrand_range(5, 100);

	// Cracks
	if(crack != m_last_crack)
	{
		for(std::map<u32, std::string>::iterator
				i = m_crack_materials.begin();
				i != m_crack_materials.end(); i++)
		{
			scene::IMeshBuffer *buf = m_mesh->getMeshBuffer(i->first);
			std::string basename = i->second;

			// Create new texture name from original
			ITextureSource *tsrc = m_gamedef->getTextureSource();
			std::ostringstream os;
			os<<basename<<crack;
			u32 new_texture_id = 0;
			video::ITexture *new_texture =
				tsrc->getTextureForMesh(os.str(), &new_texture_id);
			buf->getMaterial().setTexture(0, new_texture);

			// If the current material is also animated,
			// update animation info
			std::map<u32, TileSpec>::iterator anim_iter =
				m_animation_tiles.find(i->first);
			if(anim_iter != m_animation_tiles.end()){
				TileSpec &tile = anim_iter->second;
				tile.texture = new_texture;
				tile.texture_id = new_texture_id;
				// force animation update
				m_animation_frames[i->first] = -1;
			}
		}

		m_last_crack = crack;
	}

	// Texture animation
	for(std::map<u32, TileSpec>::iterator
			i = m_animation_tiles.begin();
			i != m_animation_tiles.end(); i++)
	{
		const TileSpec &tile = i->second;
		// Figure out current frame
		int frameoffset = m_animation_frame_offsets[i->first];
		int frame = (int)(time * 1000 / tile.animation_frame_length_ms
				+ frameoffset) % tile.animation_frame_count;
		// If frame doesn't change, skip
		if(frame == m_animation_frames[i->first])
			continue;

		m_animation_frames[i->first] = frame;

		scene::IMeshBuffer *buf = m_mesh->getMeshBuffer(i->first);
		ITextureSource *tsrc = m_gamedef->getTextureSource();

		FrameSpec animation_frame = tile.frames[frame];
		buf->getMaterial().setTexture(0, animation_frame.texture);
		if (m_enable_shaders) {
			if (animation_frame.normal_texture) {
				buf->getMaterial().setTexture(1, animation_frame.normal_texture);
				buf->getMaterial().setTexture(2, tsrc->getTextureForMesh("enable_img.png"));
			} else {
				buf->getMaterial().setTexture(2, tsrc->getTextureForMesh("disable_img.png"));
			}
		}
	}

	// Day-night transition
	if(!m_enable_shaders && (daynight_ratio != m_last_daynight_ratio))
	{
		for(std::map<u32, std::map<u32, std::pair<u8, u8> > >::iterator
				i = m_daynight_diffs.begin();
				i != m_daynight_diffs.end(); i++)
		{
			scene::IMeshBuffer *buf = m_mesh->getMeshBuffer(i->first);
			video::S3DVertex *vertices = (video::S3DVertex*)buf->getVertices();
			for(std::map<u32, std::pair<u8, u8 > >::iterator
					j = i->second.begin();
					j != i->second.end(); j++)
			{
				u32 vertexIndex = j->first;
				u8 day = j->second.first;
				u8 night = j->second.second;
				finalColorBlend(vertices[vertexIndex].Color,
						day, night, daynight_ratio);
			}
		}
		m_last_daynight_ratio = daynight_ratio;
	}

//.........这里部分代码省略.........

//.........这里部分代码省略.........
		Add special graphics:
		- torches
		- flowing water
		- fences
		- whatever
	*/

	mapblock_mesh_generate_special(data, collector);

	m_highlight_mesh_color = data->m_highlight_mesh_color;

	/*
		Convert MeshCollector to SMesh
	*/
	ITextureSource *tsrc = m_gamedef->tsrc();
	IShaderSource *shdrsrc = m_gamedef->getShaderSource();

	for(u32 i = 0; i < collector.prebuffers.size(); i++)
	{
		PreMeshBuffer &p = collector.prebuffers[i];

		// Generate animation data
		// - Cracks
		if(p.tile.material_flags & MATERIAL_FLAG_CRACK)
		{
			// Find the texture name plus ^[crack:N:
			std::ostringstream os(std::ios::binary);
			os<<tsrc->getTextureName(p.tile.texture_id)<<"^[crack";
			if(p.tile.material_flags & MATERIAL_FLAG_CRACK_OVERLAY)
				os<<"o";  // use ^[cracko
			os<<":"<<(u32)p.tile.animation_frame_count<<":";
			m_crack_materials.insert(std::make_pair(i, os.str()));
			// Replace tile texture with the cracked one
			p.tile.texture = tsrc->getTextureForMesh(
					os.str()+"0",
					&p.tile.texture_id);
		}
		// - Texture animation
		if(p.tile.material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES)
		{
			// Add to MapBlockMesh in order to animate these tiles
			m_animation_tiles[i] = p.tile;
			m_animation_frames[i] = 0;
			if(g_settings->getBool("desynchronize_mapblock_texture_animation")){
				// Get starting position from noise
				m_animation_frame_offsets[i] = 100000 * (2.0 + noise3d(
						data->m_blockpos.X, data->m_blockpos.Y,
						data->m_blockpos.Z, 0));
			} else {
				// Play all synchronized
				m_animation_frame_offsets[i] = 0;
			}
			// Replace tile texture with the first animation frame
			FrameSpec animation_frame = p.tile.frames[0];
			p.tile.texture = animation_frame.texture;
		}

		if(m_enable_highlighting && p.tile.material_flags & MATERIAL_FLAG_HIGHLIGHTED)
			m_highlighted_materials.push_back(i);	

		for(u32 j = 0; j < p.vertices.size(); j++)
		{
			// Note applyFacesShading second parameter is precalculated sqrt
			// value for speed improvement
			// Skip it for lightsources and top faces.
			video::SColor &vc = p.vertices[j].Color;