Initial version, load default FEN, displays for 5 seconds and closes

sprites.cpp

@@ -0,0 +1,43 @@
+#include "sprites.hpp"
+
+SDL_Surface* Sprite::sheet = nullptr;
+
+int Sprite::get(Piece piece, SDL_Surface* dest_surface)
+{
+    return get(piece.get_team(), piece.get_type(), piece.get_vis(),  dest_surface);
+}
+
+int Sprite::get(Team team, Type type, Visibility vis, SDL_Surface* dest_surface)
+{
+    if (nullptr == sheet)
+    {
+        load();
+    }
+
+    if (NO_TYPE == type || NO_TEAM == team || VIS_NONE == vis)
+    {
+        return -1;
+    }
+
+    SDL_Rect dest_rect{0,0,45,45};
+    SDL_Rect src_rect{type*45,team*45+vis*90,45,45};
+    SDL_BlitSurface(sheet, &src_rect, dest_surface, &dest_rect);
+
+    return 0;
+}
+
+void Sprite::close()
+{
+    if (nullptr != sheet)
+    {
+        SDL_FreeSurface(sheet);
+        sheet = nullptr;
+    }
+}
+
+void Sprite::load()
+{
+    close();
+    sheet = SDL_LoadBMP("Chess_Pieces_Sprite.bmp");
+    SDL_SetColorKey(sheet, SDL_TRUE, SDL_MapRGB(sheet->format, 0xFF, 0, 0xFF));
+}