Ja dibuixa la tarjeta amb la ajuda per als botons de servei

source/on_screen_help.cpp

@@ -1,8 +1,36 @@
 #include "on_screen_help.h"
+#include "screen.h"
+#include "asset.h"
+#include "input.h"
+#include "text.h"
+#include "sprite.h"
+#include "texture.h"
+#include "lang.h"
 
 // [SINGLETON] Hay que definir las variables estáticas, desde el .h sólo la hemos declarado
 OnScreenHelp *OnScreenHelp::onScreenHelp = nullptr;
 
+// Constantes evaluables en tiempo de compilación
+constexpr int ICONSIZE = 16;
+constexpr SDL_Point PADDING = {8, 8};
+constexpr SDL_Point DESP = {ICONSIZE + 4, 5};
+
+constexpr SDL_Rect CONTROLLER_UP = {16, 16, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect CONTROLLER_DOWN = {48, 16, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect CONTROLLER_LEFT = {64, 16, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect LEFT_BUTTON = {48, 144, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect TOP_BUTTON = {0, 144, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect RIGHT_BUTTON = {16, 144, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect START_BUTTON = {128, 320, ICONSIZE, ICONSIZE};
+
+constexpr SDL_Rect CONTROLLER_UP_POS = {PADDING.x, PADDING.y + 18 * 0, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect CONTROLLER_DOWN_POS = {PADDING.x, PADDING.y + 18 * 1, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect CONTROLLER_LEFT_POS = {PADDING.x, PADDING.y + 18 * 2, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect LEFT_BUTTON_POS = {PADDING.x, PADDING.y + 18 * 3, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect TOP_BUTTON_POS = {PADDING.x, PADDING.y + 18 * 4, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect RIGHT_BUTTON_POS = {PADDING.x, PADDING.y + 18 * 5, ICONSIZE, ICONSIZE};
+constexpr SDL_Rect START_BUTTON_POS = {PADDING.x, PADDING.y + 18 * 6, ICONSIZE, ICONSIZE};
+
 // [SINGLETON] Crearemos el objeto onScreenHelp con esta función estática
 void OnScreenHelp::init()
 {
@@ -22,11 +50,143 @@ OnScreenHelp *OnScreenHelp::get()
 }
 
 // Constructor
-OnScreenHelp::OnScreenHelp()
+OnScreenHelp::OnScreenHelp() : state(OnScreenHelpStatus::showing)
 {
+    setSize();
+
+    texture = SDL_CreateTexture(Screen::get()->getRenderer(), SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, dest.w, dest.h);
+    SDL_SetTextureBlendMode(texture, SDL_BLENDMODE_BLEND);
+
+    fillTexture();
 }
 
 // Destructor
 OnScreenHelp::~OnScreenHelp()
 {
+    SDL_DestroyTexture(texture);
+}
+
+// Actualiza la lógica interna
+void OnScreenHelp::update()
+{
+}
+
+// Muestra el objeto en pantalla
+void OnScreenHelp::render()
+{
+    if (state != OnScreenHelpStatus::hidden)
+    {
+        SDL_RenderCopy(Screen::get()->getRenderer(), texture, nullptr, &dest);
+    }
+}
+
+// Rellena la textura con los gráficos y texto
+void OnScreenHelp::fillTexture()
+{
+    // Cambia el renderizador a la textura
+    SDL_Texture *temp = SDL_GetRenderTarget(Screen::get()->getRenderer());
+    SDL_SetRenderTarget(Screen::get()->getRenderer(), texture);
+
+    // Crea el objeto para el texto
+    Text *text = new Text(Asset::get()->get("8bithud.png"), Asset::get()->get("8bithud.txt"), Screen::get()->getRenderer());
+
+    // Crea la textura con los gráficos
+    Texture *controllersTexture = new Texture(Screen::get()->getRenderer(), Asset::get()->get("controllers.png"));
+
+    // Crea el sprite para dibujar los gráficos
+    Sprite *sprite = new Sprite({0, 0, 16, 16}, controllersTexture);
+
+    // Borra la textura
+    SDL_SetRenderDrawColor(Screen::get()->getRenderer(), 0, 0, 0, 0);
+    SDL_RenderClear(Screen::get()->getRenderer());
+
+    // Pon el color de fondo con el bisel
+    SDL_SetRenderDrawColor(Screen::get()->getRenderer(), 0x55, 0x5D, 0x77, 255);
+    SDL_Rect rect;
+    rect = {4, 0, dest.w - (4 * 2), dest.h};
+    SDL_RenderFillRect(Screen::get()->getRenderer(), &rect);
+
+    rect = {4 / 2, 1, dest.w - 4, dest.h - 2};
+    SDL_RenderFillRect(Screen::get()->getRenderer(), &rect);
+
+    rect = {1, 4 / 2, dest.w - 2, dest.h - 4};
+    SDL_RenderFillRect(Screen::get()->getRenderer(), &rect);
+
+    rect = {0, 4, dest.w, dest.h - (4 * 2)};
+    SDL_RenderFillRect(Screen::get()->getRenderer(), &rect);
+
+    // Dibuja los iconos y el texto
+    sprite->setSpriteClip(CONTROLLER_UP);
+    sprite->setPos(CONTROLLER_UP_POS);
+    sprite->render();
+    text->write(CONTROLLER_UP_POS.x + DESP.x, CONTROLLER_UP_POS.y + DESP.y, lang::getText(107));
+
+    sprite->setSpriteClip(CONTROLLER_DOWN);
+    sprite->setPos(CONTROLLER_DOWN_POS);
+    sprite->render();
+    text->write(CONTROLLER_DOWN_POS.x + DESP.x, CONTROLLER_DOWN_POS.y + DESP.y, lang::getText(108));
+
+    sprite->setSpriteClip(CONTROLLER_LEFT);
+    sprite->setPos(CONTROLLER_LEFT_POS);
+    sprite->render();
+    text->write(CONTROLLER_LEFT_POS.x + DESP.x, CONTROLLER_LEFT_POS.y + DESP.y, lang::getText(109));
+
+    sprite->setSpriteClip(LEFT_BUTTON);
+    sprite->setPos(LEFT_BUTTON_POS);
+    sprite->render();
+    text->write(LEFT_BUTTON_POS.x + DESP.x, LEFT_BUTTON_POS.y + DESP.y, lang::getText(110));
+
+    sprite->setSpriteClip(TOP_BUTTON);
+    sprite->setPos(TOP_BUTTON_POS);
+    sprite->render();
+    text->write(TOP_BUTTON_POS.x + DESP.x, TOP_BUTTON_POS.y + DESP.y, lang::getText(111));
+
+    sprite->setSpriteClip(RIGHT_BUTTON);
+    sprite->setPos(RIGHT_BUTTON_POS);
+    sprite->render();
+    text->write(RIGHT_BUTTON_POS.x + DESP.x, RIGHT_BUTTON_POS.y + DESP.y, lang::getText(112));
+
+    sprite->setSpriteClip(START_BUTTON);
+    sprite->setPos(START_BUTTON_POS);
+    sprite->render();
+    text->write(START_BUTTON_POS.x + DESP.x, START_BUTTON_POS.y + DESP.y, lang::getText(113));
+
+    // text->write(0, 0, "hola");
+
+    // Restaura el destino de renderizado
+    SDL_SetRenderTarget(Screen::get()->getRenderer(), temp);
+
+    // Elimina los objetos
+    delete text;
+    delete controllersTexture;
+    delete sprite;
+}
+
+// Define el ancho y alto de la textura
+void OnScreenHelp::setSize()
+{
+    const int textSize = getLargestStringSize();
+    dest = (SDL_Rect){8, 8, PADDING.x + DESP.x + textSize + PADDING.x, PADDING.y + (7 * 18) + PADDING.y};
+}
+
+// Activa o desactiva el objeto
+void OnScreenHelp::toggleState()
+{
+    state = state == OnScreenHelpStatus::showing ? OnScreenHelpStatus::hidden : OnScreenHelpStatus::showing;
+}
+
+// Calcula la longitud en pixels del texto más largo
+int OnScreenHelp::getLargestStringSize() const
+{
+    Text *text = new Text(Asset::get()->get("8bithud.png"), Asset::get()->get("8bithud.txt"), Screen::get()->getRenderer());
+    int size = 0;
+
+    for (int i = 107; i <= 113; ++i)
+    {
+        const int textSize = text->lenght(lang::getText(i));
+        size = textSize > size ? textSize : size;
+    }
+
+    delete text;
+    return size;
 }