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Arreglar degradado de fondo restaurando campo alpha en SDL_Vertex

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- Identificado que SDL_RenderGeometry requiere campo alpha en SDL_Vertex
- Restaurada implementación original con alpha=1.0f en todos los vértices
- Eliminado código debug temporal y workaround con SDL_RenderFillRect
- El degradado de fondo ahora funciona correctamente como en la versión original

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Sergio
2025-09-28 07:58:29 +02:00
parent 6a84234265
commit dab71d41b6
6 changed files with 225 additions and 96 deletions
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162
source/engine.cpp
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@@ -39,7 +39,7 @@ bool Engine::initialize() {
// Crear y configurar el window manager
window_manager_ = std::make_unique<vibe4::WindowManager>();
if (!window_manager_->initialize(WINDOW_CAPTION, SCREEN_WIDTH, SCREEN_HEIGHT, WINDOW_ZOOM)) {
if (!window_manager_->initialize(WINDOW_CAPTION, SCREEN_WIDTH, SCREEN_HEIGHT, 1)) {
std::cout << "¡No se pudo inicializar el WindowManager!" << std::endl;
return false;
}
@@ -65,9 +65,19 @@ bool Engine::initialize() {
// Inicializar otros componentes
srand(static_cast<unsigned>(time(nullptr)));
// TODO: Cargar datos de textura para sprites
// En una implementación completa, cargaríamos la textura aquí
texture_data_ = nullptr;
// Cargar textura para sprites e inicializar debug text
auto* sdl_renderer = window_manager_->getSDLRenderer();
if (sdl_renderer) {
// Construir ruta absoluta a la imagen
std::string exe_dir = getExecutableDirectory();
std::string texture_path = exe_dir + "/data/ball.png";
texture_ = std::make_shared<Texture>(sdl_renderer, texture_path);
// Inicializar sistema de texto debug
dbg_init(sdl_renderer);
} else {
std::cout << "¡Advertencia: No se pudo obtener SDL_Renderer para texturas!" << std::endl;
}
initializeThemes();
initBalls(scenario_);
@@ -92,8 +102,7 @@ void Engine::shutdown() {
window_manager_.reset();
}
// Limpiar datos de textura si los hay
texture_data_ = nullptr;
// La textura se limpia automáticamente con shared_ptr
}
// Métodos privados - esqueleto básico por ahora
@@ -292,32 +301,36 @@ void Engine::handleEvents() {
}
void Engine::render() {
// Renderizar fondo degradado en lugar de color sólido
if (!window_manager_) return;
// PASO 1: Activar renderizado a textura lógica
if (!window_manager_->setRenderTarget()) {
return;
}
// PASO 2: Renderizar fondo degradado a la textura
renderGradientBackground();
// Usar el nuevo sistema de renderizado
auto* renderer = window_manager_ ? window_manager_->getRenderer() : nullptr;
if (!renderer) return;
// PASO 3: Limpiar batches del frame anterior
batch_vertices_.clear();
batch_indices_.clear();
// Comenzar frame de renderizado
renderer->beginFrame();
// Limpiar batch del frame anterior
clearSpriteBatch();
// Recopilar datos de todas las bolas para batch rendering
// PASO 4: Recopilar datos de todas las bolas para batch rendering
for (auto &ball : balls_) {
SDL_FRect pos = ball->getPosition();
Color color = ball->getColor();
addSpriteToBatch(pos.x, pos.y, pos.w, pos.h, color.r, color.g, color.b);
}
// Renderizar batch completo
renderSpriteBatch();
// Finalizar frame
renderer->endFrame();
// PASO 5: Renderizar todas las bolas a la textura
auto* sdl_renderer = window_manager_->getSDLRenderer();
if (!batch_vertices_.empty() && sdl_renderer && texture_) {
SDL_RenderGeometry(sdl_renderer, texture_->getSDLTexture(),
batch_vertices_.data(), static_cast<int>(batch_vertices_.size()),
batch_indices_.data(), static_cast<int>(batch_indices_.size()));
}
// PASO 5.5: Renderizar texto a la textura (antes de presentar)
if (show_text_) {
// Colores acordes a cada tema (para texto del número de pelotas y nombre del tema)
int theme_colors[][3] = {
@@ -384,10 +397,8 @@ void Engine::render() {
dbg_print(8, 64, theme_text.c_str(), 255, 255, 128); // Amarillo claro para tema
}
// Presentar frame final
if (renderer) {
renderer->present();
}
// PASO 6: Presentar la textura final con zoom/postprocesado
window_manager_->presentFrame();
}
void Engine::initBalls(int value) {
@@ -412,7 +423,7 @@ void Engine::initBalls(int value) {
const Color COLOR = theme.ball_colors[color_index];
// Generar factor de masa aleatorio (0.7 = ligera, 1.3 = pesada)
float mass_factor = GRAVITY_MASS_MIN + (rand() % 1000) / 1000.0f * (GRAVITY_MASS_MAX - GRAVITY_MASS_MIN);
balls_.emplace_back(std::make_unique<Ball>(X, VX, VY, COLOR, nullptr, current_screen_width_, current_screen_height_, current_gravity_, mass_factor));
balls_.emplace_back(std::make_unique<Ball>(X, VX, VY, COLOR, texture_, current_screen_width_, current_screen_height_, current_gravity_, mass_factor));
}
setText(); // Actualiza el texto
}
@@ -555,53 +566,41 @@ std::string Engine::gravityDirectionToString(GravityDirection direction) const {
}
void Engine::renderGradientBackground() {
// Crear quad de pantalla completa con degradado
SDL_Vertex bg_vertices[4];
// Obtener colores del tema actual
ThemeColors &theme = themes_[static_cast<int>(current_theme_)];
float top_r = theme.bg_top_r;
float top_g = theme.bg_top_g;
float top_b = theme.bg_top_b;
auto* sdl_renderer = window_manager_ ? window_manager_->getSDLRenderer() : nullptr;
if (!sdl_renderer) {
return;
}
float bottom_r = theme.bg_bottom_r;
float bottom_g = theme.bg_bottom_g;
float bottom_b = theme.bg_bottom_b;
// Crear gradiente suave usando SDL_RenderGeometry como en la implementación original
SDL_Vertex bg_vertices[4];
// Vértice superior izquierdo
bg_vertices[0].position = {0, 0};
bg_vertices[0].tex_coord = {0.0f, 0.0f};
bg_vertices[0].color = {top_r, top_g, top_b, 1.0f};
bg_vertices[0].color = {theme.bg_top_r, theme.bg_top_g, theme.bg_top_b, 1.0f};
// Vértice superior derecho
bg_vertices[1].position = {static_cast<float>(current_screen_width_), 0};
bg_vertices[1].position = {static_cast<float>(SCREEN_WIDTH), 0};
bg_vertices[1].tex_coord = {1.0f, 0.0f};
bg_vertices[1].color = {top_r, top_g, top_b, 1.0f};
bg_vertices[1].color = {theme.bg_top_r, theme.bg_top_g, theme.bg_top_b, 1.0f};
// Vértice inferior derecho
bg_vertices[2].position = {static_cast<float>(current_screen_width_), static_cast<float>(current_screen_height_)};
bg_vertices[2].position = {static_cast<float>(SCREEN_WIDTH), static_cast<float>(SCREEN_HEIGHT)};
bg_vertices[2].tex_coord = {1.0f, 1.0f};
bg_vertices[2].color = {bottom_r, bottom_g, bottom_b, 1.0f};
bg_vertices[2].color = {theme.bg_bottom_r, theme.bg_bottom_g, theme.bg_bottom_b, 1.0f};
// Vértice inferior izquierdo
bg_vertices[3].position = {0, static_cast<float>(current_screen_height_)};
bg_vertices[3].position = {0, static_cast<float>(SCREEN_HEIGHT)};
bg_vertices[3].tex_coord = {0.0f, 1.0f};
bg_vertices[3].color = {bottom_r, bottom_g, bottom_b, 1.0f};
bg_vertices[3].color = {theme.bg_bottom_r, theme.bg_bottom_g, theme.bg_bottom_b, 1.0f};
// Índices para 2 triángulos
int bg_indices[6] = {0, 1, 2, 2, 3, 0};
// TODO: Migrar renderizado de fondo degradado al nuevo sistema
// SDL_RenderGeometry(renderer_, nullptr, bg_vertices, 4, bg_indices, 6);
auto* renderer = window_manager_ ? window_manager_->getRenderer() : nullptr;
if (renderer) {
renderer->renderGradientBackground(
theme.bg_top_r, theme.bg_top_g, theme.bg_top_b,
theme.bg_bottom_r, theme.bg_bottom_g, theme.bg_bottom_b
);
}
// Renderizar gradiente sin textura (nullptr)
SDL_RenderGeometry(sdl_renderer, nullptr, bg_vertices, 4, bg_indices, 6);
}
// Método addSpriteToBatch antiguo eliminado - ahora se usa el del nuevo sistema
@@ -867,20 +866,53 @@ void Engine::clearSpriteBatch() {
void Engine::renderSpriteBatch() {
auto* renderer = window_manager_ ? window_manager_->getRenderer() : nullptr;
if (renderer && !sprite_batch_.empty()) {
renderer->renderSpriteBatch(sprite_batch_, texture_data_);
if (renderer && !sprite_batch_.empty() && texture_) {
void* texture_data = static_cast<void*>(texture_->getSDLTexture());
renderer->renderSpriteBatch(sprite_batch_, texture_data);
}
}
void Engine::addSpriteToBatch(float x, float y, float w, float h, int r, int g, int b) {
vibe4::SpriteData sprite;
sprite.x = x;
sprite.y = y;
sprite.w = w;
sprite.h = h;
sprite.r = static_cast<float>(r);
sprite.g = static_cast<float>(g);
sprite.b = static_cast<float>(b);
int vertex_index = static_cast<int>(batch_vertices_.size());
sprite_batch_.push_back(sprite);
// Crear 4 vértices para el quad (2 triángulos)
SDL_Vertex vertices[4];
// Convertir colores de int (0-255) a float (0.0-1.0)
float rf = r / 255.0f;
float gf = g / 255.0f;
float bf = b / 255.0f;
// Vértice superior izquierdo
vertices[0].position = {x, y};
vertices[0].tex_coord = {0.0f, 0.0f};
vertices[0].color = {rf, gf, bf, 1.0f};
// Vértice superior derecho
vertices[1].position = {x + w, y};
vertices[1].tex_coord = {1.0f, 0.0f};
vertices[1].color = {rf, gf, bf, 1.0f};
// Vértice inferior derecho
vertices[2].position = {x + w, y + h};
vertices[2].tex_coord = {1.0f, 1.0f};
vertices[2].color = {rf, gf, bf, 1.0f};
// Vértice inferior izquierdo
vertices[3].position = {x, y + h};
vertices[3].tex_coord = {0.0f, 1.0f};
vertices[3].color = {rf, gf, bf, 1.0f};
// Añadir vértices al batch
for (int i = 0; i < 4; i++) {
batch_vertices_.push_back(vertices[i]);
}
// Añadir índices para 2 triángulos
batch_indices_.push_back(vertex_index + 0);
batch_indices_.push_back(vertex_index + 1);
batch_indices_.push_back(vertex_index + 2);
batch_indices_.push_back(vertex_index + 2);
batch_indices_.push_back(vertex_index + 3);
batch_indices_.push_back(vertex_index + 0);
}