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-rw-r--r--src/client/tile.cpp43
1 files changed, 41 insertions, 2 deletions
diff --git a/src/client/tile.cpp b/src/client/tile.cpp
index 67d5d8d1a..8f0c39465 100644
--- a/src/client/tile.cpp
+++ b/src/client/tile.cpp
@@ -1783,9 +1783,48 @@ bool TextureSource::generateImagePart(std::string part_of_name,
for (u32 y = 0; y < dim.Height; y++)
for (u32 x = 0; x < dim.Width; x++)
{
- video::SColor c = baseimg->getPixel(x,y);
+ video::SColor c = baseimg->getPixel(x, y);
c.setAlpha(floor((c.getAlpha() * ratio) / 255 + 0.5));
- baseimg->setPixel(x,y,c);
+ baseimg->setPixel(x, y, c);
+ }
+ }
+ /*
+ [invert:mode
+ Inverts the given channels of the base image.
+ Mode may contain the characters "r", "g", "b", "a".
+ Only the channels that are mentioned in the mode string
+ will be inverted.
+ */
+ else if (str_starts_with(part_of_name, "[invert:")) {
+ if (baseimg == NULL) {
+ errorstream << "generateImagePart(): baseimg == NULL "
+ << "for part_of_name=\"" << part_of_name
+ << "\", cancelling." << std::endl;
+ return false;
+ }
+
+ Strfnd sf(part_of_name);
+ sf.next(":");
+
+ std::string mode = sf.next("");
+ u32 mask = 0;
+ if (mode.find("a") != std::string::npos)
+ mask |= 0xff000000UL;
+ if (mode.find("r") != std::string::npos)
+ mask |= 0x00ff0000UL;
+ if (mode.find("g") != std::string::npos)
+ mask |= 0x0000ff00UL;
+ if (mode.find("b") != std::string::npos)
+ mask |= 0x000000ffUL;
+
+ core::dimension2d<u32> dim = baseimg->getDimension();
+
+ for (u32 y = 0; y < dim.Height; y++)
+ for (u32 x = 0; x < dim.Width; x++)
+ {
+ video::SColor c = baseimg->getPixel(x, y);
+ c.color ^= mask;
+ baseimg->setPixel(x, y, c);
}
}
else