-
-
-ExtrudedSpriteSceneNode::ExtrudedSpriteSceneNode(
- scene::ISceneNode* parent,
- scene::ISceneManager* mgr,
- s32 id,
- const v3f& position,
- const v3f& rotation,
- const v3f& scale
-):
- ISceneNode(parent, mgr, id, position, rotation, scale)
-{
- m_meshnode = mgr->addMeshSceneNode(NULL, this, -1, v3f(0,0,0), v3f(0,0,0), v3f(1,1,1), true);
- m_thickness = 0.1;
- m_cubemesh = NULL;
- m_is_cube = false;
- m_light = LIGHT_MAX;
-}
-
-ExtrudedSpriteSceneNode::~ExtrudedSpriteSceneNode()
-{
- removeChild(m_meshnode);
- if (m_cubemesh)
- m_cubemesh->drop();
-}
-
-void ExtrudedSpriteSceneNode::setSprite(video::ITexture* texture)
-{
- if (texture == NULL)
- {
- m_meshnode->setVisible(false);
- return;
- }
-
- io::path name = getExtrudedName(texture);
- scene::IMeshCache* cache = SceneManager->getMeshCache();
- scene::IAnimatedMesh* mesh = cache->getMeshByName(name);
- if (mesh != NULL)
- {
- // Extruded texture has been found in cache.
- m_meshnode->setMesh(mesh);
- }
- else
- {
- // Texture was not yet extruded, do it now and save in cache
- mesh = extrude(texture);
- if (mesh == NULL)
- {
- dstream << "Warning: failed to extrude sprite" << std::endl;
- m_meshnode->setVisible(false);
- return;
- }
- cache->addMesh(name, mesh);
- m_meshnode->setMesh(mesh);
- mesh->drop();
- }
-
- m_meshnode->setScale(v3f(1, 1, m_thickness));
- m_meshnode->getMaterial(0).setTexture(0, texture);
- m_meshnode->getMaterial(0).setFlag(video::EMF_LIGHTING, false);
- m_meshnode->getMaterial(0).setFlag(video::EMF_BILINEAR_FILTER, false);
- m_meshnode->getMaterial(0).MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
- m_meshnode->setVisible(true);
- m_is_cube = false;
- updateLight(m_light);
-}
-
-void ExtrudedSpriteSceneNode::setCube(const TileSpec tiles[6])
-{
- if (m_cubemesh == NULL)
- m_cubemesh = createCubeMesh();
-
- m_meshnode->setMesh(m_cubemesh);
- m_meshnode->setScale(v3f(1));
- for (int i = 0; i < 6; ++i)
- {
- // Get the tile texture and atlas transformation
- video::ITexture* atlas = tiles[i].texture.atlas;
- v2f pos = tiles[i].texture.pos;
- v2f size = tiles[i].texture.size;
-
- // Set material flags and texture
- video::SMaterial& material = m_meshnode->getMaterial(i);
- material.setFlag(video::EMF_LIGHTING, false);
- material.setFlag(video::EMF_BILINEAR_FILTER, false);
- tiles[i].applyMaterialOptions(material);
- material.setTexture(0, atlas);
- material.getTextureMatrix(0).setTextureTranslate(pos.X, pos.Y);
- material.getTextureMatrix(0).setTextureScale(size.X, size.Y);
- }
- m_meshnode->setVisible(true);
- m_is_cube = true;
- updateLight(m_light);
-}
-
-void ExtrudedSpriteSceneNode::updateLight(u8 light)
-{
- m_light = light;
-
- u8 li = decode_light(light);
- // Set brightness one lower than incoming light
- diminish_light(li);
- video::SColor color(255,li,li,li);
- setMeshVerticesColor(m_meshnode->getMesh(), color);
-}
-
-void ExtrudedSpriteSceneNode::removeSpriteFromCache(video::ITexture* texture)
-{
- scene::IMeshCache* cache = SceneManager->getMeshCache();
- scene::IAnimatedMesh* mesh = cache->getMeshByName(getExtrudedName(texture));
- if (mesh != NULL)
- cache->removeMesh(mesh);
-}
-
-void ExtrudedSpriteSceneNode::setSpriteThickness(f32 thickness)
-{
- m_thickness = thickness;
- if (!m_is_cube)
- m_meshnode->setScale(v3f(1, 1, thickness));
-}
-
-const core::aabbox3d<f32>& ExtrudedSpriteSceneNode::getBoundingBox() const
-{
- return m_meshnode->getBoundingBox();
-}
-
-void ExtrudedSpriteSceneNode::OnRegisterSceneNode()
-{
- if (IsVisible)
- SceneManager->registerNodeForRendering(this);
- ISceneNode::OnRegisterSceneNode();
-}
-
-void ExtrudedSpriteSceneNode::render()
-{
- // do nothing
-}
-
-io::path ExtrudedSpriteSceneNode::getExtrudedName(video::ITexture* texture)
-{
- io::path path = texture->getName();
- path.append("/[extruded]");
- return path;
-}
-
-scene::IAnimatedMesh* ExtrudedSpriteSceneNode::extrudeARGB(u32 width, u32 height, u8* data)
-{
- const s32 argb_wstep = 4 * width;
- const s32 alpha_threshold = 1;
-
- scene::IMeshBuffer* buf = new scene::SMeshBuffer();
- video::SColor c(255,255,255,255);
-
- // Front and back
- {
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(-0.5,-0.5,-0.5, 0,0,-1, c, 0,1),
- video::S3DVertex(-0.5,+0.5,-0.5, 0,0,-1, c, 0,0),
- video::S3DVertex(+0.5,+0.5,-0.5, 0,0,-1, c, 1,0),
- video::S3DVertex(+0.5,-0.5,-0.5, 0,0,-1, c, 1,1),
- video::S3DVertex(+0.5,-0.5,+0.5, 0,0,+1, c, 1,1),
- video::S3DVertex(+0.5,+0.5,+0.5, 0,0,+1, c, 1,0),
- video::S3DVertex(-0.5,+0.5,+0.5, 0,0,+1, c, 0,0),
- video::S3DVertex(-0.5,-0.5,+0.5, 0,0,+1, c, 0,1),
- };
- u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
- buf->append(vertices, 8, indices, 12);
- }
-
- // "Interior"
- // (add faces where a solid pixel is next to a transparent one)
- u8* solidity = new u8[(width+2) * (height+2)];
- u32 wstep = width + 2;
- for (u32 y = 0; y < height + 2; ++y)
- {
- u8* scanline = solidity + y * wstep;
- if (y == 0 || y == height + 1)
- {
- for (u32 x = 0; x < width + 2; ++x)
- scanline[x] = 0;
- }
- else
- {
- scanline[0] = 0;
- u8* argb_scanline = data + (y - 1) * argb_wstep;
- for (u32 x = 0; x < width; ++x)
- scanline[x+1] = (argb_scanline[x*4+3] >= alpha_threshold);
- scanline[width + 1] = 0;
- }
- }
-
- // without this, there would be occasional "holes" in the mesh
- f32 eps = 0.01;
-
- for (u32 y = 0; y <= height; ++y)
- {
- u8* scanline = solidity + y * wstep + 1;
- for (u32 x = 0; x <= width; ++x)
- {
- if (scanline[x] && !scanline[x + wstep])
- {
- u32 xx = x + 1;
- while (scanline[xx] && !scanline[xx + wstep])
- ++xx;
- f32 vx1 = (x - eps) / (f32) width - 0.5;
- f32 vx2 = (xx + eps) / (f32) width - 0.5;
- f32 vy = 0.5 - (y - eps) / (f32) height;
- f32 tx1 = x / (f32) width;
- f32 tx2 = xx / (f32) width;
- f32 ty = (y - 0.5) / (f32) height;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx1,vy,-0.5, 0,-1,0, c, tx1,ty),
- video::S3DVertex(vx2,vy,-0.5, 0,-1,0, c, tx2,ty),
- video::S3DVertex(vx2,vy,+0.5, 0,-1,0, c, tx2,ty),
- video::S3DVertex(vx1,vy,+0.5, 0,-1,0, c, tx1,ty),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- x = xx - 1;
- }
- if (!scanline[x] && scanline[x + wstep])
- {
- u32 xx = x + 1;
- while (!scanline[xx] && scanline[xx + wstep])
- ++xx;
- f32 vx1 = (x - eps) / (f32) width - 0.5;
- f32 vx2 = (xx + eps) / (f32) width - 0.5;
- f32 vy = 0.5 - (y + eps) / (f32) height;
- f32 tx1 = x / (f32) width;
- f32 tx2 = xx / (f32) width;
- f32 ty = (y + 0.5) / (f32) height;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx1,vy,-0.5, 0,1,0, c, tx1,ty),
- video::S3DVertex(vx1,vy,+0.5, 0,1,0, c, tx1,ty),
- video::S3DVertex(vx2,vy,+0.5, 0,1,0, c, tx2,ty),
- video::S3DVertex(vx2,vy,-0.5, 0,1,0, c, tx2,ty),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- x = xx - 1;
- }
- }
- }
-
- for (u32 x = 0; x <= width; ++x)
- {
- u8* scancol = solidity + x + wstep;
- for (u32 y = 0; y <= height; ++y)
- {
- if (scancol[y * wstep] && !scancol[y * wstep + 1])
- {
- u32 yy = y + 1;
- while (scancol[yy * wstep] && !scancol[yy * wstep + 1])
- ++yy;
- f32 vx = (x - eps) / (f32) width - 0.5;
- f32 vy1 = 0.5 - (y - eps) / (f32) height;
- f32 vy2 = 0.5 - (yy + eps) / (f32) height;
- f32 tx = (x - 0.5) / (f32) width;
- f32 ty1 = y / (f32) height;
- f32 ty2 = yy / (f32) height;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx,vy1,-0.5, 1,0,0, c, tx,ty1),
- video::S3DVertex(vx,vy1,+0.5, 1,0,0, c, tx,ty1),
- video::S3DVertex(vx,vy2,+0.5, 1,0,0, c, tx,ty2),
- video::S3DVertex(vx,vy2,-0.5, 1,0,0, c, tx,ty2),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- y = yy - 1;
- }
- if (!scancol[y * wstep] && scancol[y * wstep + 1])
- {
- u32 yy = y + 1;
- while (!scancol[yy * wstep] && scancol[yy * wstep + 1])
- ++yy;
- f32 vx = (x + eps) / (f32) width - 0.5;
- f32 vy1 = 0.5 - (y - eps) / (f32) height;
- f32 vy2 = 0.5 - (yy + eps) / (f32) height;
- f32 tx = (x + 0.5) / (f32) width;
- f32 ty1 = y / (f32) height;
- f32 ty2 = yy / (f32) height;
- video::S3DVertex vertices[8] =
- {
- video::S3DVertex(vx,vy1,-0.5, -1,0,0, c, tx,ty1),
- video::S3DVertex(vx,vy2,-0.5, -1,0,0, c, tx,ty2),
- video::S3DVertex(vx,vy2,+0.5, -1,0,0, c, tx,ty2),
- video::S3DVertex(vx,vy1,+0.5, -1,0,0, c, tx,ty1),
- };
- u16 indices[6] = {0,1,2,2,3,0};
- buf->append(vertices, 4, indices, 6);
- y = yy - 1;
- }
- }
- }
-
- // Add to mesh
- scene::SMesh* mesh = new scene::SMesh();
- buf->recalculateBoundingBox();
- mesh->addMeshBuffer(buf);
- buf->drop();
- mesh->recalculateBoundingBox();
- scene::SAnimatedMesh* anim_mesh = new scene::SAnimatedMesh(mesh);
- mesh->drop();
- return anim_mesh;
-}
-
-scene::IAnimatedMesh* ExtrudedSpriteSceneNode::extrude(video::ITexture* texture)
-{
- scene::IAnimatedMesh* mesh = NULL;
- core::dimension2d<u32> size = texture->getSize();
- video::ECOLOR_FORMAT format = texture->getColorFormat();
- if (format == video::ECF_A8R8G8B8)
- {
- // Texture is in the correct color format, we can pass it
- // to extrudeARGB right away.
- void* data = texture->lock(true);
- if (data == NULL)
- return NULL;
- mesh = extrudeARGB(size.Width, size.Height, (u8*) data);
- texture->unlock();
- }
- else
- {
- video::IVideoDriver* driver = SceneManager->getVideoDriver();
-
- video::IImage* img1 = driver->createImageFromData(format, size, texture->lock(true));
- if (img1 == NULL)
- return NULL;
-
- // img1 is in the texture's color format, convert to 8-bit ARGB
- video::IImage* img2 = driver->createImage(video::ECF_A8R8G8B8, size);
- if (img2 != NULL)
- {
- img1->copyTo(img2);
- img1->drop();
-
- mesh = extrudeARGB(size.Width, size.Height, (u8*) img2->lock());
- img2->unlock();
- img2->drop();
- }
- img1->drop();
- }
- return mesh;
-}
-
-scene::IMesh* ExtrudedSpriteSceneNode::createCubeMesh()
-{
- video::SColor c(255,255,255,255);
- video::S3DVertex vertices[24] =
- {
- // Up
- video::S3DVertex(-0.5,+0.5,-0.5, 0,1,0, c, 0,1),
- video::S3DVertex(-0.5,+0.5,+0.5, 0,1,0, c, 0,0),
- video::S3DVertex(+0.5,+0.5,+0.5, 0,1,0, c, 1,0),
- video::S3DVertex(+0.5,+0.5,-0.5, 0,1,0, c, 1,1),
- // Down
- video::S3DVertex(-0.5,-0.5,-0.5, 0,-1,0, c, 0,0),
- video::S3DVertex(+0.5,-0.5,-0.5, 0,-1,0, c, 1,0),
- video::S3DVertex(+0.5,-0.5,+0.5, 0,-1,0, c, 1,1),
- video::S3DVertex(-0.5,-0.5,+0.5, 0,-1,0, c, 0,1),
- // Right
- video::S3DVertex(+0.5,-0.5,-0.5, 1,0,0, c, 0,1),
- video::S3DVertex(+0.5,+0.5,-0.5, 1,0,0, c, 0,0),
- video::S3DVertex(+0.5,+0.5,+0.5, 1,0,0, c, 1,0),
- video::S3DVertex(+0.5,-0.5,+0.5, 1,0,0, c, 1,1),
- // Left
- video::S3DVertex(-0.5,-0.5,-0.5, -1,0,0, c, 1,1),
- video::S3DVertex(-0.5,-0.5,+0.5, -1,0,0, c, 0,1),
- video::S3DVertex(-0.5,+0.5,+0.5, -1,0,0, c, 0,0),
- video::S3DVertex(-0.5,+0.5,-0.5, -1,0,0, c, 1,0),
- // Back
- video::S3DVertex(-0.5,-0.5,+0.5, 0,0,1, c, 1,1),
- video::S3DVertex(+0.5,-0.5,+0.5, 0,0,1, c, 0,1),
- video::S3DVertex(+0.5,+0.5,+0.5, 0,0,1, c, 0,0),
- video::S3DVertex(-0.5,+0.5,+0.5, 0,0,1, c, 1,0),
- // Front
- video::S3DVertex(-0.5,-0.5,-0.5, 0,0,-1, c, 0,1),
- video::S3DVertex(-0.5,+0.5,-0.5, 0,0,-1, c, 0,0),
- video::S3DVertex(+0.5,+0.5,-0.5, 0,0,-1, c, 1,0),
- video::S3DVertex(+0.5,-0.5,-0.5, 0,0,-1, c, 1,1),
- };
-
- u16 indices[6] = {0,1,2,2,3,0};
-
- scene::SMesh* mesh = new scene::SMesh();
- for (u32 i=0; i<6; ++i)
- {
- scene::IMeshBuffer* buf = new scene::SMeshBuffer();
- buf->append(vertices + 4 * i, 4, indices, 6);
- buf->recalculateBoundingBox();
- mesh->addMeshBuffer(buf);
- buf->drop();
- }
- mesh->recalculateBoundingBox();
- return mesh;
-}