Drawing simple figures

Version B

Memory Game

• Demonstration
• The board:
  • background color - standard for a window
  • grid for 4x4 fields
  • 8 pairs of objects: rectangles and ellipses in 4 colors
  • draw gray hatch pattern when field is not revealed
  resizeable (make sure it will scale properly to the size of window's client area)
  • initialize the board randomly after pressing Escape key
• Rules of the game:
  • two revealed the same objects become visible to the end of game
  • show message box with information when all objects are visible
• Hints:
  • all created GDI objects must be deleted
  • objects selected as current on DC must not be deleted
  • good scenario:
    1. create new object
    2. select new object on DC and remember old object
    3. draw something
    4. restore old object
    5. delete new object
  • example:
    HBRUSH brush = CreateSolidBrush( RGB( 255, 0, 0 ));
    HBRUSH oldBrush = (HBRUSH)SelectObject( hdc, brush );
    // drawing
    SelectObject( hdc, oldBrush );
    DeleteObject( brush );
  • WM_KEYDOWN
  • WM_LBUTTONDOWN
  • CreateSolidBrush(), CreateHatchBrush()

• Approximate points:
  • drawing the board : 2.5
  • resizing the board: 1.5
  • drawing objects: 1.5
  • drawing hatch pattern for hidden objects: 1.0
  • initializing the board randomly: 1.0
  • logic of the game: 2.5