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Whoops: broke sprite transparency and flipping!

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Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
This commit is contained in:
Adrian.Conlon 2017-09-15 18:29:47 +01:00
parent f4c8496882
commit 26e99f6934
1 changed files with 5 additions and 4 deletions
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9
LR35902/src/Display.cpp
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@ -143,18 +143,19 @@ void EightBit::GameBoy::Display::renderTile(
for (int cx = 0; cx < 8; ++cx) { for (int cx = 0; cx < 8; ++cx) {
uint8_t y = drawY + cy + offsetY; uint8_t y = drawY + (flipY ? 7 - cy : cy) + offsetY;
if (y >= RasterHeight) if (y >= RasterHeight)
break; break;
uint8_t x = drawX + cx + offsetX; uint8_t x = drawX + (flipX ? 7 - cx : cx) + offsetX;
if (x >= RasterWidth) if (x >= RasterWidth)
break; break;
auto outputPixel = y * RasterWidth + x; auto outputPixel = y * RasterWidth + x;
auto colour = palette[definition.get()[cy * 8 + cx]]; auto colour = definition.get()[cy * 8 + cx];
m_pixels[outputPixel] = m_colours->getColour(colour); if (!allowTransparencies || (allowTransparencies && (colour > 0)))
m_pixels[outputPixel] = m_colours->getColour(palette[colour]);
} }
} }
} }