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/*
* Copyright (c) 2020, Till Mayer <till.mayer@web.de>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "CardStack.h"
CardStack::CardStack()
: m_position({ 0, 0 })
, m_type(Invalid)
, m_base(m_position, { Card::width, Card::height })
{
}
CardStack::CardStack(const Gfx::IntPoint& position, Type type)
: m_position(position)
, m_type(type)
, m_rules(rules_for_type(type))
, m_base(m_position, { Card::width, Card::height })
{
VERIFY(type != Invalid);
calculate_bounding_box();
}
void CardStack::clear()
{
m_stack.clear();
m_stack_positions.clear();
}
void CardStack::draw(GUI::Painter& painter, const Gfx::Color& background_color)
{
switch (m_type) {
case Stock:
if (is_empty()) {
painter.fill_rect(m_base.shrunken(Card::width / 4, Card::height / 4), background_color.lightened(1.5));
painter.fill_rect(m_base.shrunken(Card::width / 2, Card::height / 2), background_color);
painter.draw_rect(m_base, background_color.darkened(0.5));
}
break;
case Foundation:
if (is_empty() || (m_stack.size() == 1 && peek().is_moving())) {
painter.draw_rect(m_base, background_color.darkened(0.5));
for (int y = 0; y < (m_base.height() - 4) / 8; ++y) {
for (int x = 0; x < (m_base.width() - 4) / 5; ++x) {
painter.draw_rect({ 4 + m_base.x() + x * 5, 4 + m_base.y() + y * 8, 1, 1 }, background_color.darkened(0.5));
}
}
}
break;
case Waste:
if (is_empty() || (m_stack.size() == 1 && peek().is_moving()))
painter.draw_rect(m_base, background_color.darkened(0.5));
break;
case Normal:
painter.draw_rect(m_base, background_color.darkened(0.5));
break;
default:
VERIFY_NOT_REACHED();
}
if (is_empty())
return;
if (m_rules.shift_x == 0 && m_rules.shift_y == 0) {
auto& card = peek();
card.draw(painter);
return;
}
for (auto& card : m_stack) {
if (!card.is_moving())
card.clear_and_draw(painter, background_color);
}
m_dirty = false;
}
void CardStack::rebound_cards()
{
VERIFY(m_stack_positions.size() == m_stack.size());
size_t card_index = 0;
for (auto& card : m_stack)
card.set_position(m_stack_positions.at(card_index++));
}
void CardStack::add_all_grabbed_cards(const Gfx::IntPoint& click_location, NonnullRefPtrVector<Card>& grabbed)
{
VERIFY(grabbed.is_empty());
if (m_type != Normal) {
auto& top_card = peek();
if (top_card.rect().contains(click_location)) {
top_card.set_moving(true);
grabbed.append(top_card);
}
return;
}
RefPtr<Card> last_intersect;
for (auto& card : m_stack) {
if (card.rect().contains(click_location)) {
if (card.is_upside_down())
continue;
last_intersect = card;
} else if (!last_intersect.is_null()) {
if (grabbed.is_empty()) {
grabbed.append(*last_intersect);
last_intersect->set_moving(true);
}
if (card.is_upside_down()) {
grabbed.clear();
return;
}
card.set_moving(true);
grabbed.append(card);
}
}
if (grabbed.is_empty() && !last_intersect.is_null()) {
grabbed.append(*last_intersect);
last_intersect->set_moving(true);
}
}
bool CardStack::is_allowed_to_push(const Card& card) const
{
if (m_type == Stock || m_type == Waste)
return false;
if (m_type == Normal && is_empty())
return card.value() == 12;
if (m_type == Foundation && is_empty())
return card.value() == 0;
if (!is_empty()) {
auto& top_card = peek();
if (top_card.is_upside_down())
return false;
if (m_type == Foundation) {
return top_card.type() == card.type() && m_stack.size() == card.value();
} else if (m_type == Normal) {
return top_card.color() != card.color() && top_card.value() == card.value() + 1;
}
VERIFY_NOT_REACHED();
}
return true;
}
void CardStack::push(NonnullRefPtr<Card> card)
{
auto size = m_stack.size();
auto top_most_position = m_stack_positions.is_empty() ? m_position : m_stack_positions.last();
if (size && size % m_rules.step == 0) {
if (peek().is_upside_down())
top_most_position.move_by(m_rules.shift_x, m_rules.shift_y_upside_down);
else
top_most_position.move_by(m_rules.shift_x, m_rules.shift_y);
}
if (m_type == Stock)
card->set_upside_down(true);
card->set_position(top_most_position);
m_stack.append(card);
m_stack_positions.append(top_most_position);
calculate_bounding_box();
}
NonnullRefPtr<Card> CardStack::pop()
{
auto card = m_stack.take_last();
calculate_bounding_box();
if (m_type == Stock)
card->set_upside_down(false);
m_stack_positions.take_last();
return card;
}
void CardStack::calculate_bounding_box()
{
m_bounding_box = Gfx::IntRect(m_position, { Card::width, Card::height });
if (m_stack.is_empty())
return;
uint16_t width = 0;
uint16_t height = 0;
size_t card_position = 0;
for (auto& card : m_stack) {
if (card_position % m_rules.step == 0 && card_position) {
if (card.is_upside_down()) {
width += m_rules.shift_x;
height += m_rules.shift_y_upside_down;
} else {
width += m_rules.shift_x;
height += m_rules.shift_y;
}
}
++card_position;
}
m_bounding_box.set_size(Card::width + width, Card::height + height);
}
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