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Color: afegit suport per al canal alpha

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This commit is contained in:
Sergio
2025-06-26 11:52:17 +02:00
parent 78efcbccb7
commit 231bd05f5e
1 changed files with 20 additions and 13 deletions
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33
source/utils.h
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@@ -35,27 +35,29 @@ struct Circle
: x(xCoord), y(yCoord), r(radius) {}
};
// Estructura para definir un color RGB
// Estructura para definir un color RGBA
struct Color
{
Uint8 r, g, b;
constexpr Color() : r(0), g(0), b(0) {}
explicit constexpr Color(Uint8 red, Uint8 green, Uint8 blue) : r(red), g(green), b(blue) {}
Uint8 r, g, b, a;
constexpr Color() : r(0), g(0), b(0), a(255) {}
explicit constexpr Color(Uint8 red, Uint8 green, Uint8 blue, Uint8 alpha = 255) : r(red), g(green), b(blue), a(alpha) {}
constexpr Color getInverse() const { return Color(255 - r, 255 - g, 255 - b); }
constexpr Color getInverse() const { return Color(255 - r, 255 - g, 255 - b, a); }
constexpr Color lighten(int amount = 50) const
{
return Color(
std::min(255, r + amount),
std::min(255, g + amount),
std::min(255, b + amount));
std::min(255, b + amount),
a);
}
constexpr Color darken(int amount = 50) const
{
return Color(
std::max(0, r - amount),
std::max(0, g - amount),
std::max(0, b - amount));
std::max(0, b - amount),
a);
}
// Método estático para crear Color desde string hexadecimal
@@ -68,9 +70,9 @@ struct Color
hex = hex.substr(1);
}
// Verificar longitud válida (6 caracteres para RGB)
if (hex.length() != 6) {
throw std::invalid_argument("String hexadecimal debe tener 6 caracteres");
// Verificar longitud válida (6 para RGB o 8 para RGBA)
if (hex.length() != 6 && hex.length() != 8) {
throw std::invalid_argument("String hexadecimal debe tener 6 o 8 caracteres");
}
// Verificar que todos los caracteres sean hexadecimales válidos
@@ -80,12 +82,18 @@ struct Color
}
}
// Convertir cada par de caracteres a valores RGB
// Convertir cada par de caracteres a valores RGB(A)
Uint8 r = static_cast<Uint8>(std::stoi(hex.substr(0, 2), nullptr, 16));
Uint8 g = static_cast<Uint8>(std::stoi(hex.substr(2, 2), nullptr, 16));
Uint8 b = static_cast<Uint8>(std::stoi(hex.substr(4, 2), nullptr, 16));
Uint8 a = 255; // Alpha por defecto
return Color(r, g, b);
// Si tiene 8 caracteres, extraer el alpha
if (hex.length() == 8) {
a = static_cast<Uint8>(std::stoi(hex.substr(6, 2), nullptr, 16));
}
return Color(r, g, b, a);
}
};
@@ -182,7 +190,6 @@ constexpr Color GREEN_SKY_COLOR = Color(0X00, 0X79, 0X6B);
constexpr Color SERV_MENU_TITLE_COLOR = Color(0x99, 0xFF, 0x62);
constexpr Color SERV_MENU_TEXT_COLOR = Color(255, 255, 255);
constexpr Color SERV_MENU_SELECTED_COLOR = Color(255, 170, 18).lighten();
//constexpr Color SERV_MENU_SELECTED_COLOR = SERV_MENU_TITLE_COLOR.darken();
constexpr Color SERV_MENU_BG_COLOR_SHADOW = Color(0x1E, 0x1E, 0x1E);
constexpr Color SERV_MENU_BG_COLOR_ALPHA = Color(0x00, 0x00, 0x00);
constexpr Color DEBUG_COLOR = Color(0xFF, 0xFF, 0x00);