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add gradient color V2.0 (#3709)
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@ -139,9 +139,19 @@ struct Color {
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return Color(uint8_t((uint16_t(r) * 255U / max_rgb)), uint8_t((uint16_t(g) * 255U / max_rgb)),
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uint8_t((uint16_t(b) * 255U / max_rgb)), w);
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}
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Color fade_to_white(uint8_t amnt) { return Color(255, 255, 255, 255) - (*this * amnt); }
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Color fade_to_black(uint8_t amnt) { return *this * amnt; }
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Color gradient(const Color &to_color, uint8_t amnt) { return (*this * amnt) + (to_color * (255 - amnt)); }
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Color gradient(const Color &to_color, uint8_t amnt) {
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Color new_color;
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float amnt_f = float(amnt) / 255.0f;
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new_color.r = amnt_f * (to_color.r - (*this).r) + (*this).r;
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new_color.g = amnt_f * (to_color.g - (*this).g) + (*this).g;
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new_color.b = amnt_f * (to_color.b - (*this).b) + (*this).b;
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new_color.w = amnt_f * (to_color.w - (*this).w) + (*this).w;
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return new_color;
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}
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Color fade_to_white(uint8_t amnt) { return (*this).gradient(Color::WHITE, amnt); }
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Color fade_to_black(uint8_t amnt) { return (*this).gradient(Color::BLACK, amnt); }
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Color lighten(uint8_t delta) { return *this + delta; }
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Color darken(uint8_t delta) { return *this - delta; }
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