From 231bd05f5ef5b3440e9c80c64774ef3b3c558006 Mon Sep 17 00:00:00 2001
From: Sergio Valor <jaildesigner@gmail.com>
Date: Thu, 26 Jun 2025 11:52:17 +0200
Subject: [PATCH] Color: afegit suport per al canal alpha

---
 source/utils.h | 33 ++++++++++++++++++++-------------
 1 file changed, 20 insertions(+), 13 deletions(-)

diff --git a/source/utils.h b/source/utils.h
index ee0c06e..506082a 100644
--- a/source/utils.h
+++ b/source/utils.h
@@ -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);