scenes: infraestructura de la capa scenes:: (scene, timeline, sprite mover, frame animator, palette fade, surface handle, registry)

source/scenes/surface_handle.cpp

@@ -0,0 +1,31 @@
+#include "scenes/surface_handle.hpp"
+
+namespace scenes {
+
+SurfaceHandle::SurfaceHandle(const char* file)
+    : surface_(JD8_LoadSurface(file)) {}
+
+SurfaceHandle::~SurfaceHandle() {
+    if (surface_) JD8_FreeSurface(surface_);
+}
+
+SurfaceHandle::SurfaceHandle(SurfaceHandle&& other) noexcept
+    : surface_(other.surface_) {
+    other.surface_ = nullptr;
+}
+
+SurfaceHandle& SurfaceHandle::operator=(SurfaceHandle&& other) noexcept {
+    if (this != &other) {
+        if (surface_) JD8_FreeSurface(surface_);
+        surface_ = other.surface_;
+        other.surface_ = nullptr;
+    }
+    return *this;
+}
+
+void SurfaceHandle::reset(const char* file) {
+    if (surface_) JD8_FreeSurface(surface_);
+    surface_ = file ? JD8_LoadSurface(file) : nullptr;
+}
+
+}  // namespace scenes