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Added subtract function for Colors

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Oleh Prypin committed 2015-05-01 21:09:52 +03:00
1 parent 1486a30e2f
commit 1d0d7164c8
2 files changed
+26
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src/SFML/Graphics/Color.cpp
+15
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@@ -97,6 +97,21 @@ sfColor sfColor_add(sfColor color1, sfColor color2)
}
////////////////////////////////////////////////////////////
sfColor sfColor_subtract(sfColor color1, sfColor color2)
{
int red = std::max(color1.r - color2.r, 0);
int green = std::max(color1.g - color2.g, 0);
int blue = std::max(color1.b - color2.b, 0);
int alpha = std::max(color1.a - color2.a, 0);
return sfColor_fromRGBA(static_cast<sfUint8>(red),
static_cast<sfUint8>(green),
static_cast<sfUint8>(blue),
static_cast<sfUint8>(alpha));
}
////////////////////////////////////////////////////////////
sfColor sfColor_modulate(sfColor color1, sfColor color2)
{