From 1923347da98a10627569263e369e3a597dc82df2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergio=20Valor=20Mart=C3=ADnez?= <jaildesigner@gmail.com>
Date: Sun, 7 May 2023 19:00:44 +0200
Subject: [PATCH] =?UTF-8?q?A=C3=B1adidos=20colores=20al=20fondo?=
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Content-Type: text/plain; charset=UTF-8
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---
 main.cpp         | 22 ++++++++++++++++------
 units/screen.cpp |  1 +
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/main.cpp b/main.cpp
index 5a18956..5e5b476 100644
--- a/main.cpp
+++ b/main.cpp
@@ -59,7 +59,11 @@ int main(int argc, char *argv[])
 	if (window != nullptr)
 	{
 		renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
-		if (renderer == nullptr)
+		if (renderer != nullptr)
+		{
+			SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
+		}
+		else
 		{
 			exit(EXIT_FAILURE);
 		}
@@ -98,7 +102,7 @@ int main(int argc, char *argv[])
 	sprite->setVelY(2);
 
 	// Bucle principal
-	//JA_PlayMusic(music, true);
+	// JA_PlayMusic(music, true);
 	bool should_exit = false;
 	while (!should_exit)
 	{
@@ -203,8 +207,6 @@ int main(int argc, char *argv[])
 		// Dibuja en pantalla
 		screen->start();
 		screen->clean();
-		// SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0xFF);
-		// SDL_RenderClear(renderer);
 
 		// Dibuja un degradado de fondo
 		const int gradFirstLine = options->screen.nativeHeight / 3;
@@ -220,9 +222,18 @@ int main(int argc, char *argv[])
 			SDL_RenderDrawLine(renderer, 0, i, options->screen.nativeWidth, i);
 		}
 
+		for (int i = gradLastLine; i > gradFirstLine; --i)
+		{
+			float step = ((float)(i - gradFirstLine) / gradNumLines);
+			int alpha = 0 + ((255 - 0) * step);
+			SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0xFF, alpha);
+			SDL_RenderDrawLine(renderer, 0, gradLastLine - i, options->screen.nativeWidth, gradLastLine - i);
+		}
+
 		// Escribe el texto
 		text->setZoom(2);
-		text->writeCentered(options->screen.nativeWidth / 2, text->getCharacterSize(), "Jail Engine DEMO");
+		// text->writeCentered(options->screen.nativeWidth / 2, text->getCharacterSize(), "Jail Engine DEMO");
+		text->writeDX(TXT_CENTER | TXT_SHADOW, options->screen.nativeWidth / 2, text->getCharacterSize(), "Jail Engine DEMO", 1, {255, 255, 255}, 1, {48, 48, 48});
 		text->disableZoom();
 		text->writeCentered(options->screen.nativeWidth / 2, text->getCharacterSize() * 7, "Pulsa 'N' para mostrar");
 		text->writeCentered(options->screen.nativeWidth / 2, text->getCharacterSize() * 8, "una notificacion");
@@ -232,7 +243,6 @@ int main(int argc, char *argv[])
 
 		// Vuelca el buffer en pantalla
 		screen->blit();
-		// SDL_RenderPresent(renderer);
 	}
 
 	// Finaliza el sprite
diff --git a/units/screen.cpp b/units/screen.cpp
index 05bb8cb..3d50406 100644
--- a/units/screen.cpp
+++ b/units/screen.cpp
@@ -29,6 +29,7 @@ Screen::Screen(SDL_Window *window, SDL_Renderer *renderer, options_t *options)
             std::cout << "TitleSurface could not be created!\nSDL Error: " << SDL_GetError() << std::endl;
         }
     }
+	SDL_SetTextureBlendMode(gameCanvas, SDL_BLENDMODE_BLEND);
 
     // Establece el modo de video
     setVideoMode(options->screen.mode);