Add texture modification [lowpart:percent:filename

diff --git a/src/tile.cpp b/src/tile.cpp
index 9497c4ca9ac2e8b6a3c1d4c009bad35c02a0906b..6bbec4ee6d3a89a8afa542fe019882b7a05b4f21 100644 (file)
--- a/src/tile.cpp
+++ b/src/tile.cpp
@@ -1603,6 +1603,41 @@ bool generate_image(std::string part_of_name, video::IImage *& baseimg,
                                image->drop();
                        }
                }
+               /*
+                       [lowpart:percent:filename
+                       Adds the lower part of a texture
+               */
+               else if(part_of_name.substr(0,9) == "[lowpart:")
+               {
+                       Strfnd sf(part_of_name);
+                       sf.next(":");
+                       u32 percent = stoi(sf.next(":"));
+                       std::string filename = sf.next(":");
+                       //infostream<<"power part "<<percent<<"%% of "<<filename<<std::endl;
+
+                       if(baseimg == NULL)
+                               baseimg = driver->createImage(video::ECF_A8R8G8B8, v2u32(16,16));
+                       video::IImage *img = sourcecache->getOrLoad(filename, device);
+                       if(img)
+                       {
+                               core::dimension2d<u32> dim = img->getDimension();
+                               core::position2d<s32> pos_base(0, 0);
+                               video::IImage *img2 =
+                                               driver->createImage(video::ECF_A8R8G8B8, dim);
+                               img->copyTo(img2);
+                               img->drop();
+                               core::position2d<s32> clippos(0, 0);
+                               clippos.Y = dim.Height * (100-percent) / 100;
+                               core::dimension2d<u32> clipdim = dim;
+                               clipdim.Height = clipdim.Height * percent / 100 + 1;
+                               core::rect<s32> cliprect(clippos, clipdim);
+                               img2->copyToWithAlpha(baseimg, pos_base,
+                                               core::rect<s32>(v2s32(0,0), dim),
+                                               video::SColor(255,255,255,255),
+                                               &cliprect);
+                               img2->drop();
+                       }
+               }
                else
                {
                        errorstream<<"generate_image(): Invalid "