Commit to continue on other pc

source/fade.cpp

@@ -0,0 +1,172 @@
+#include "fade.h"
+#include "const.h"
+
+// Constructor
+Fade::Fade(SDL_Renderer *renderer)
+{
+	mRenderer = renderer;
+
+	mBackbuffer = SDL_CreateTexture(mRenderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, SCREEN_WIDTH, SCREEN_HEIGHT);
+	if (mBackbuffer == NULL)
+		printf("Backbuffer could not be created!\nSDL Error: %s\n", SDL_GetError());
+}
+
+// Destructor
+Fade::~Fade()
+{
+	SDL_DestroyTexture(mBackbuffer);
+	mBackbuffer = nullptr;
+}
+
+// Inicializa las variables
+void Fade::init(Uint8 r, Uint8 g, Uint8 b)
+{
+	mFadeType = FADE_CENTER;
+	mEnabled = false;
+	mFinished = false;
+	mCounter = 0;
+	//mR = 0x27;
+	//mG = 0x27;
+	//mB = 0x36;
+	mR = r;
+	mG = g;
+	mB = b;
+}
+
+// Pinta una transición en pantalla
+void Fade::render()
+{
+	if (mEnabled && !mFinished)
+	{
+		switch (mFadeType)
+		{
+		case FADE_FULLSCREEN:
+			mRect1 = {0, 0, SCREEN_WIDTH, SCREEN_HEIGHT};
+
+			for (int i = 0; i < 256; i += 4)
+			{
+				// Dibujamos sobre el renderizador
+				SDL_SetRenderTarget(mRenderer, NULL);
+
+				// Copia el backbuffer con la imagen que había al renderizador
+				SDL_RenderCopy(mRenderer, mBackbuffer, NULL, NULL);
+
+				SDL_SetRenderDrawColor(mRenderer, mR, mG, mB, i);
+				SDL_RenderFillRect(mRenderer, &mRect1);
+
+				// Vuelca el renderizador en pantalla
+				SDL_RenderPresent(mRenderer);
+			}
+
+			// Deja todos los buffers del mismo color
+			SDL_SetRenderTarget(mRenderer, mBackbuffer);
+			SDL_SetRenderDrawColor(mRenderer, mR, mG, mB, 255);
+			SDL_RenderClear(mRenderer);
+
+			SDL_SetRenderTarget(mRenderer, NULL);
+			SDL_SetRenderDrawColor(mRenderer, mR, mG, mB, 255);
+			SDL_RenderClear(mRenderer);
+			break;
+
+		case FADE_CENTER:
+			mRect1 = {0, 0, SCREEN_WIDTH, 0};
+			mRect2 = {0, 0, SCREEN_WIDTH, 0};
+
+			SDL_SetRenderDrawColor(mRenderer, mR, mG, mB, 64);
+
+			for (int i = 0; i < mCounter; i++)
+			{
+				mRect1.h = mRect2.h = i * 4;
+				mRect2.y = SCREEN_HEIGHT - (i * 4);
+
+				SDL_RenderFillRect(mRenderer, &mRect1);
+				SDL_RenderFillRect(mRenderer, &mRect2);
+			}
+
+			if ((mCounter * 4) > SCREEN_HEIGHT)
+				mFinished = true;
+			break;
+
+		case FADE_RANDOM_SQUARE:
+			mRect1 = {0, 0, 32, 32};
+
+			for (Uint16 i = 0; i < 50; i++)
+			{
+				// Crea un color al azar
+				mR = 255 * (rand() % 2);
+				mG = 255 * (rand() % 2);
+				mB = 255 * (rand() % 2);
+				SDL_SetRenderDrawColor(mRenderer, mR, mG, mB, 64);
+
+				// Dibujamos sobre el backbuffer
+				SDL_SetRenderTarget(mRenderer, mBackbuffer);
+
+				mRect1.x = rand() % (SCREEN_WIDTH - mRect1.w);
+				mRect1.y = rand() % (SCREEN_HEIGHT - mRect1.h);
+				SDL_RenderFillRect(mRenderer, &mRect1);
+
+				// Volvemos a usar el renderizador de forma normal
+				SDL_SetRenderTarget(mRenderer, NULL);
+
+				// Copiamos el backbuffer al renderizador
+				SDL_RenderCopy(mRenderer, mBackbuffer, NULL, NULL);
+
+				// Volcamos el renderizador en pantalla
+				SDL_RenderPresent(mRenderer);
+				SDL_Delay(100);
+			}
+			break;
+
+		default:
+			break;
+		}
+	}
+	
+	if (mFinished)
+	{
+		SDL_SetRenderDrawColor(mRenderer, mR, mG, mB, 255);
+		SDL_RenderClear(mRenderer);
+	}
+}
+
+// Actualiza las variables internas
+void Fade::update()
+{
+	if (mEnabled)
+		mCounter++;
+}
+
+// Activa el fade
+void Fade::activateFade()
+{
+	mEnabled = true;
+	mFinished = false;
+	mCounter = 0;
+}
+
+// Comprueba si está activo
+bool Fade::isEnabled()
+{
+	return mEnabled;
+}
+
+// Comprueba si ha terminado la transicion
+bool Fade::hasEnded()
+{
+	if (mFinished)
+	{
+		//mEnabled = false;
+		//mFinished = false;
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+// Establece el tipo de fade
+void Fade::setFadeType(Uint8 fadeType)
+{
+	mFadeType = fadeType;
+}