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Code Issues Activity Actions

Hearts: Highlight cards when an invalid play is attempted

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This briefly inverts the selected card when the user attempts to make
an invalid play.
This commit is contained in:
Gunnar Beutner 2021-05-26 09:22:19 +02:00 • committed by Andreas Kling
parent 2c772d1848
commit 971f4ca71c
4 changed files with 39 additions and 1 deletions
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22
Userland/Libraries/LibCards/Card.cpp
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@ -60,6 +60,7 @@ static const NonnullRefPtr<Gfx::CharacterBitmap> s_club = Gfx::CharacterBitmap::
11, 9);
static RefPtr<Gfx::Bitmap> s_background;
static RefPtr<Gfx::Bitmap> s_background_inverted;
Card::Card(Type type, uint8_t value)
: m_rect(Gfx::IntRect({}, { width, height }))
@ -85,6 +86,8 @@ Card::Card(Type type, uint8_t value)
{ { (width - target_size.width()) / 2, (height - target_size.height()) / 2 }, target_size },
*image, image->rect());
bg_painter.draw_rect(paint_rect, Color::Black);
s_background_inverted = invert_bitmap(*s_background);
}
Gfx::Painter painter(m_front);
@ -126,6 +129,8 @@ Card::Card(Type type, uint8_t value)
m_front->set_pixel(x, y, m_front->get_pixel(width - x - 1, height - y - 1));
}
}
m_front_inverted = invert_bitmap(*m_front);
}
Card::~Card()
@ -135,7 +140,10 @@ Card::~Card()
void Card::draw(GUI::Painter& painter) const
{
VERIFY(!s_background.is_null());
painter.blit(position(), m_upside_down ? *s_background : *m_front, m_front->rect());
if (m_inverted)
painter.blit(position(), m_upside_down ? *s_background_inverted : *m_front_inverted, m_front_inverted->rect());
else
painter.blit(position(), m_upside_down ? *s_background : *m_front, m_front->rect());
}
void Card::clear(GUI::Painter& painter, const Color& background_color) const
@ -158,4 +166,16 @@ void Card::clear_and_draw(GUI::Painter& painter, const Color& background_color)
save_old_position();
}
NonnullRefPtr<Gfx::Bitmap> Card::invert_bitmap(Gfx::Bitmap& bitmap)
{
auto inverted_bitmap = bitmap.clone();
VERIFY(inverted_bitmap);
for (int y = 0; y < inverted_bitmap->height(); y++) {
for (int x = 0; x < inverted_bitmap->width(); x++) {
inverted_bitmap->set_pixel(x, y, inverted_bitmap->get_pixel(x, y).inverted());
}
}
return *inverted_bitmap;
}
}