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//-----------------------------------------------------------------------------
/** @file libpentobi_base/CallistoGeometry.cpp
@author Markus Enzenberger
@copyright GNU General Public License version 3 or later */
//-----------------------------------------------------------------------------
#include "CallistoGeometry.h"
#include <map>
#include <memory>
namespace libpentobi_base {
using namespace std;
//-----------------------------------------------------------------------------
namespace {
unsigned get_size_callisto(unsigned nu_players)
{
if (nu_players == 2)
return 16;
LIBBOARDGAME_ASSERT(nu_players == 3 || nu_players == 4);
return 20;
}
unsigned get_edge_callisto(unsigned nu_players)
{
if (nu_players == 4)
return 6;
LIBBOARDGAME_ASSERT(nu_players == 2 || nu_players == 3);
return 2;
}
bool is_onboard_callisto(unsigned x, unsigned y, unsigned width,
unsigned height, unsigned edge)
{
unsigned dy = min(y, height - y - 1);
unsigned min_x = (width - edge) / 2 > dy ? (width - edge) / 2 - dy : 0;
unsigned max_x = width - min_x - 1;
return x >= min_x && x <= max_x;
}
} // namespace
//-----------------------------------------------------------------------------
CallistoGeometry::CallistoGeometry(unsigned nu_colors)
{
unsigned sz = get_size_callisto(nu_colors);
m_edge = get_edge_callisto(nu_colors);
Geometry::init(sz, sz);
}
const CallistoGeometry& CallistoGeometry::get(unsigned nu_colors)
{
static map<unsigned, shared_ptr<CallistoGeometry>> s_geometry;
auto pos = s_geometry.find(nu_colors);
if (pos != s_geometry.end())
return *pos->second;
auto geometry = make_shared<CallistoGeometry>(nu_colors);
s_geometry.insert({nu_colors, geometry});
return *geometry;
}
auto CallistoGeometry::get_adj_coord(
[[maybe_unused]] int x, [[maybe_unused]] int y) const -> AdjCoordList
{
return {};
}
auto CallistoGeometry::get_diag_coord(int x, int y) const -> DiagCoordList
{
DiagCoordList l;
l.push_back({x, y - 1});
l.push_back({x - 1, y});
l.push_back({x + 1, y});
l.push_back({x, y + 1});
return l;
}
unsigned CallistoGeometry::get_period_x() const
{
return 1;
}
unsigned CallistoGeometry::get_period_y() const
{
return 1;
}
unsigned CallistoGeometry::get_point_type(
[[maybe_unused]] int x, [[maybe_unused]] int y) const
{
return 0;
}
bool CallistoGeometry::init_is_onboard(unsigned x, unsigned y) const
{
return is_onboard_callisto(x, y, get_width(), get_height(), m_edge);
}
bool CallistoGeometry::is_center_section(unsigned x, unsigned y,
unsigned nu_colors)
{
auto size = get_size_callisto(nu_colors);
if (x < size / 2 - 3 || y < size / 2 - 3)
return false;
x -= size / 2 - 3;
y -= size / 2 - 3;
if (x > 5 || y > 5)
return false;
return is_onboard_callisto(x, y, 6, 6, 2);
}
//-----------------------------------------------------------------------------
} // namespace libpentobi_base
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