Commit to continue on other pc

source/text.cpp

@@ -0,0 +1,177 @@
+#include "const.h"
+#include "text.h"
+#include <iostream>
+#include <fstream>
+
+// Constructor
+Text::Text(std::string file, LTexture *texture, SDL_Renderer *renderer)
+{
+	mSprite = new Sprite();
+	mSprite->setTexture(texture);
+	mSprite->setRenderer(renderer);
+	mFile = file;
+
+	init();
+}
+
+// Destructor
+Text::~Text()
+{
+	delete mSprite;
+	mSprite = nullptr;
+}
+
+// Inicializador
+void Text::init()
+{
+	// Inicializa a cero el vector con las coordenadas
+	for (int i = 0; i < 128; i++)
+	{
+		mOffset[i].x = 0;
+		mOffset[i].y = 0;
+		mOffset[i].w = 0;
+	}
+
+	// Carga los offsets desde el fichero
+	initOffsetFromFile();
+
+	// Inicia los valores del sprite que dibuja las letras
+	mSprite->setWidth(mBoxWidth);
+	mSprite->setHeight(mBoxHeight);
+	mSprite->setPosX(0);
+	mSprite->setPosY(0);
+	mSprite->setSpriteClip(0, 0, mSprite->getWidth(), mSprite->getHeight());
+
+	// Establece las coordenadas para cada caracter ascii de la cadena y su ancho
+	for (int i = 32; i < 128; i++)
+	{
+		mOffset[i].x = ((i - 32) % 15) * mBoxWidth;
+		mOffset[i].y = ((i - 32) / 15) * mBoxHeight;
+	}
+}
+
+// Escribe texto en pantalla
+void Text::write(int x, int y, std::string text, int kerning, int lenght)
+{
+	Uint16 shift = 0;
+
+	if (lenght == -1)
+		lenght = text.length();
+
+	for (int i = 0; i < lenght; ++i)
+	{
+		mSprite->setSpriteClip(mOffset[int(text[i])].x, mOffset[int(text[i])].y, mSprite->getWidth(), mSprite->getHeight());
+		mSprite->setPosX(x + shift);
+		mSprite->setPosY(y);
+		mSprite->render();
+		shift += (mOffset[int(text[i])].w + kerning);
+	}
+}
+
+// Escribe el texto con colores
+void Text::writeColored(int x, int y, std::string text, color_t color, int kerning, int lenght)
+{
+	mSprite->getTexture()->setColor(color.r, color.g, color.b);
+	write(x, y, text, kerning, lenght);
+	mSprite->getTexture()->setColor(255, 255, 255);
+}
+
+// Escribe el texto con sombra
+void Text::writeShadowed(int x, int y, std::string text, color_t color, Uint8 shadowDistance, int kerning, int lenght)
+{
+	mSprite->getTexture()->setColor(color.r, color.g, color.b);
+	write(x + shadowDistance, y + shadowDistance, text, kerning, lenght);
+	mSprite->getTexture()->setColor(255, 255, 255);
+	write(x, y, text, kerning, lenght);
+}
+
+// Escribe el texto centrado en un punto x
+void Text::writeCentered(int x, int y, std::string text, int kerning, int lenght)
+{
+	x -= (Text::lenght(text, kerning) / 2);
+	write(x, y, text, kerning, lenght);
+}
+
+// Escribe texto con extras
+void Text::writeDX(Uint8 flags, int x, int y, std::string text, int kerning, color_t textColor, Uint8 shadowDistance, color_t shadowColor, int lenght)
+{
+	const bool centered = ((flags & TXT_CENTER) == TXT_CENTER);
+	const bool shadowed = ((flags & TXT_SHADOW) == TXT_SHADOW);
+	const bool colored = ((flags & TXT_COLOR) == TXT_COLOR);
+	const bool stroked = ((flags & TXT_STROKE) == TXT_STROKE);
+
+	if (centered)
+		x -= (Text::lenght(text, kerning) / 2);
+
+	if (shadowed)
+		writeColored(x + shadowDistance, y + shadowDistance, text, shadowColor, kerning, lenght);
+
+	if (stroked)
+	{
+		writeColored(x + shadowDistance, y + shadowDistance, text, shadowColor, kerning, lenght);
+		writeColored(x - shadowDistance, y + shadowDistance, text, shadowColor, kerning, lenght);
+		writeColored(x + shadowDistance, y - shadowDistance, text, shadowColor, kerning, lenght);
+		writeColored(x - shadowDistance, y - shadowDistance, text, shadowColor, kerning, lenght);
+		
+		writeColored(x, y + shadowDistance, text, shadowColor, kerning, lenght);
+		writeColored(x, y - shadowDistance, text, shadowColor, kerning, lenght);
+		writeColored(x + shadowDistance, y, text, shadowColor, kerning, lenght);
+		writeColored(x - shadowDistance, y, text, shadowColor, kerning, lenght);
+	}
+
+	if (colored)
+		writeColored(x, y, text, textColor, kerning, lenght);
+	else
+		write(x, y, text, kerning, lenght);
+}
+
+// Obtiene la longitud en pixels de una cadena
+Uint16 Text::lenght(std::string text, int kerning)
+{
+	Uint16 shift = 0;
+
+	for (int i = 0; i < (int)text.length(); ++i)
+		shift += (mOffset[int(text[i])].w + kerning);
+
+	return shift;
+}
+
+// Inicializa el vector de offsets desde un fichero
+void Text::initOffsetFromFile()
+{
+	std::ifstream rfile(mFile);
+	if (rfile.is_open() && rfile.good())
+	{
+		std::string buffer;
+		//printf("Reading %s file\n", mFile.c_str());
+
+		// Lee los dos primeros valores del fichero
+		std::getline(rfile, buffer);
+		std::getline(rfile, buffer);
+		mBoxWidth = std::stoi(buffer);
+
+		std::getline(rfile, buffer);
+		std::getline(rfile, buffer);
+		mBoxHeight = std::stoi(buffer);
+
+		// lee el resto de datos del fichero
+		int index = 32;
+		int line_read = 0;
+		while (std::getline(rfile, buffer))
+		{
+			// Almacena solo las lineas impares
+			if (line_read % 2 == 1)
+				mOffset[index++].w = std::stoi(buffer);
+			
+			// Limpia el buffer
+			buffer.clear();
+			line_read++;
+		};
+	}
+}
+
+// Devuelve el valor de la variable
+Uint8 Text::getCharacterWidth()
+{
+	return mBoxWidth;
+}