// ==========================================================================
// minimum and maximum table size, in each dimension
-#define LIFE_MIN 10
+#define LIFE_MIN 20
#define LIFE_MAX 200
// some shortcuts
#endif
// --------------------------------------------------------------------------
-// private classes
+// classes
// --------------------------------------------------------------------------
class Life;
+class LifeShape;
class LifeCanvas;
class LifeTimer;
class LifeFrame;
class LifeApp;
+class LifeNewGameDialog;
+class LifeSamplesDialog;
+// --------------------------------------------------------------------------
+// non-GUI classes
+// --------------------------------------------------------------------------
// Life
class Life
void Create(int width, int height);
void Destroy();
- // public accessors
+ // accessors
inline int GetWidth() const { return m_width; };
inline int GetHeight() const { return m_height; };
inline bool IsAlive(int x, int y) const;
inline bool HasChanged(int x, int y) const;
- inline void SetCell(int x, int y, bool alive = TRUE);
- // member funcions
+ // flags
+ void SetBorderWrap(bool on);
+
+ // game logic
void Clear();
+ void SetCell(int x, int y, bool alive = TRUE);
+ void SetShape(LifeShape &shape);
bool NextTic();
private:
int m_width;
int m_height;
Cell *m_cells;
+ bool m_wrap;
+};
+
+// LifeShape
+class LifeShape
+{
+public:
+ LifeShape::LifeShape(wxString name,
+ wxString desc,
+ int width, int height, char *data,
+ int fieldWidth = 20, int fieldHeight = 20,
+ bool wrap = TRUE)
+ {
+ m_name = name;
+ m_desc = desc;
+ m_width = width;
+ m_height = height;
+ m_data = data;
+ m_fieldWidth = fieldWidth;
+ m_fieldHeight = fieldHeight;
+ m_wrap = wrap;
+ }
+
+ wxString m_name;
+ wxString m_desc;
+ int m_width;
+ int m_height;
+ char *m_data;
+ int m_fieldWidth;
+ int m_fieldHeight;
+ bool m_wrap;
};
+// --------------------------------------------------------------------------
+// GUI classes
+// --------------------------------------------------------------------------
+
// Life canvas
class LifeCanvas : public wxScrolledWindow
{
public:
// ctor and dtor
- LifeCanvas(wxWindow* parent, Life* life);
+ LifeCanvas(wxWindow* parent, Life* life, bool interactive = TRUE);
~LifeCanvas();
// member functions
wxCoord m_xoffset;
wxCoord m_yoffset;
MouseStatus m_status;
+ bool m_interactive;
};
// Life timer
// event handlers
void OnMenu(wxCommandEvent& event);
void OnNewGame(wxCommandEvent& event);
+ void OnSamples(wxCommandEvent& event);
void OnStart();
void OnStop();
void OnTimer();
wxSpinCtrl *m_spinctrlh;
};
+// Life sample configurations dialog
+class LifeSamplesDialog : public wxDialog
+{
+public:
+ // ctor and dtor
+ LifeSamplesDialog(wxWindow *parent);
+ ~LifeSamplesDialog();
+
+ // members
+ int GetValue();
+
+ // event handlers
+ void OnListBox(wxCommandEvent &event);
+
+private:
+ // any class wishing to process wxWindows events must use this macro
+ DECLARE_EVENT_TABLE();
+
+ int m_value;
+ wxListBox *m_list;
+ wxTextCtrl *m_text;
+ LifeCanvas *m_canvas;
+ Life *m_life;
+};
+
// Life app
class LifeApp : public wxApp
{
virtual bool OnInit();
};
-
// --------------------------------------------------------------------------
// constants
// --------------------------------------------------------------------------
{
// menu items and toolbar buttons
ID_NEWGAME = 1001,
+ ID_SAMPLES,
+ ID_ABOUT,
+ ID_EXIT,
ID_CLEAR,
ID_START,
+ ID_STEP,
ID_STOP,
- ID_EXIT,
- ID_ABOUT,
+ ID_WRAP,
- // slider
+ // speed selection slider
ID_SLIDER,
+
+ // listbox in samples dialog
+ ID_LISTBOX
};
+
+// built-in sample games
+#include "samples.inc"
+
// --------------------------------------------------------------------------
// event tables and other macros for wxWindows
// --------------------------------------------------------------------------
// Event tables
BEGIN_EVENT_TABLE(LifeFrame, wxFrame)
EVT_MENU (ID_NEWGAME, LifeFrame::OnNewGame)
+ EVT_MENU (ID_SAMPLES, LifeFrame::OnSamples)
+ EVT_MENU (ID_ABOUT, LifeFrame::OnMenu)
+ EVT_MENU (ID_EXIT, LifeFrame::OnMenu)
EVT_MENU (ID_CLEAR, LifeFrame::OnMenu)
EVT_MENU (ID_START, LifeFrame::OnMenu)
+ EVT_MENU (ID_STEP, LifeFrame::OnMenu)
EVT_MENU (ID_STOP, LifeFrame::OnMenu)
- EVT_MENU (ID_ABOUT, LifeFrame::OnMenu)
- EVT_MENU (ID_EXIT, LifeFrame::OnMenu)
+ EVT_MENU (ID_WRAP, LifeFrame::OnMenu)
EVT_COMMAND_SCROLL (ID_SLIDER, LifeFrame::OnSlider)
END_EVENT_TABLE()
EVT_BUTTON (wxID_OK, LifeNewGameDialog::OnOK)
END_EVENT_TABLE()
+BEGIN_EVENT_TABLE(LifeSamplesDialog, wxDialog)
+ EVT_LISTBOX (ID_LISTBOX, LifeSamplesDialog::OnListBox)
+END_EVENT_TABLE()
+
// Create a new application object
IMPLEMENT_APP(LifeApp)
// menu bar
wxMenu *menuFile = new wxMenu("", wxMENU_TEAROFF);
+ wxMenu *menuGame = new wxMenu("", wxMENU_TEAROFF);
- menuFile->Append(ID_NEWGAME, _("&New game...\tCtrl-N"), _("Start a new game"));
- menuFile->Append(ID_CLEAR, _("&Clear\tCtrl-C"), _("Clear game board"));
- menuFile->Append(ID_START, _("&Start\tCtrl-S"), _("Start"));
- menuFile->Append(ID_STOP, _("S&top\tCtrl-T"), _("Stop"));
+ menuFile->Append(ID_NEWGAME, _("New game..."), _("Start a new game"));
+ menuFile->Append(ID_SAMPLES, _("Sample game..."), _("Select a sample configuration"));
menuFile->AppendSeparator();
menuFile->Append(ID_ABOUT, _("&About...\tCtrl-A"), _("Show about dialog"));
menuFile->AppendSeparator();
menuFile->Append(ID_EXIT, _("E&xit\tAlt-X"), _("Quit this program"));
- menuFile->Enable(ID_STOP, FALSE);
+
+ menuGame->Append(ID_CLEAR, _("&Clear\tCtrl-C"), _("Clear game field"));
+ menuGame->Append(ID_START, _("&Start\tCtrl-S"), _("Start"));
+ menuGame->Append(ID_STEP, _("&Next\tCtrl-N"), _("Single step"));
+ menuGame->Append(ID_STOP, _("S&top\tCtrl-T"), _("Stop"));
+ menuGame->Enable(ID_STOP, FALSE);
+ menuGame->AppendSeparator();
+ menuGame->Append(ID_WRAP, _("&Wraparound\tCtrl-W"), _("Wrap around borders"), TRUE);
+ menuGame->Check (ID_WRAP, TRUE);
+
wxMenuBar *menuBar = new wxMenuBar();
menuBar->Append(menuFile, _("&File"));
+ menuBar->Append(menuGame, _("&Game"));
SetMenuBar(menuBar);
// tool bar
// slider
wxSlider *slider = new wxSlider(panel, ID_SLIDER, 5, 1, 10,
- wxDefaultPosition, wxSize(200,-1), wxSL_HORIZONTAL | wxSL_AUTOTICKS);
+ wxDefaultPosition, wxSize(200, -1), wxSL_HORIZONTAL | wxSL_AUTOTICKS);
// component layout
wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
+ sizer->Add(new wxStaticLine(panel, -1), 0, wxGROW | wxCENTRE);
sizer->Add(m_canvas, 1, wxGROW | wxCENTRE | wxALL, 5);
sizer->Add(new wxStaticLine(panel, -1), 0, wxGROW | wxCENTRE);
- sizer->Add(m_text, 0, wxCENTRE | wxNORTH, 5);
+ sizer->Add(m_text, 0, wxCENTRE | wxTOP, 5);
sizer->Add(slider, 0, wxCENTRE | wxALL, 5);
panel->SetSizer(sizer);
panel->SetAutoLayout(TRUE);
switch (event.GetId())
{
case ID_START : OnStart(); break;
+ case ID_STEP : OnTimer(); break;
case ID_STOP : OnStop(); break;
- case ID_CLEAR :
+ case ID_WRAP :
+ {
+ bool checked = GetMenuBar()->GetMenu(1)->IsChecked(ID_WRAP);
+ m_life->SetBorderWrap(checked);
+ break;
+ }
+ case ID_CLEAR :
{
OnStop();
m_life->Clear();
LifeNewGameDialog dialog(this, &w, &h);
result = dialog.ShowModal();
- // create new game
+ // new game?
if (result == wxID_OK)
{
// check dimensions
if (w >= LIFE_MIN && w <= LIFE_MAX &&
h >= LIFE_MIN && h <= LIFE_MAX)
{
+ // resize game field
m_life->Destroy();
m_life->Create(w, h);
+
+ // tell the canvas
m_canvas->Reset();
+ m_canvas->Refresh();
m_tics = 0;
UpdateInfoText();
- m_canvas->Refresh();
}
else
{
}
}
+void LifeFrame::OnSamples(wxCommandEvent& WXUNUSED(event))
+{
+ // stop if it was running
+ OnStop();
+
+ // show dialog box
+ LifeSamplesDialog dialog(this);
+
+ // new game?
+ if (dialog.ShowModal() == wxID_OK)
+ {
+ int result = dialog.GetValue();
+
+ if (result == -1)
+ return;
+
+ int gw = g_shapes[result].m_fieldWidth;
+ int gh = g_shapes[result].m_fieldHeight;
+ int wrap = g_shapes[result].m_wrap;
+
+ // set wraparound (don't ask the user)
+ m_life->SetBorderWrap(wrap);
+ GetMenuBar()->GetMenu(1)->Check(ID_WRAP, wrap);
+
+ // need to resize the game field?
+ if (gw > m_life->GetWidth() || gh > m_life->GetHeight())
+ {
+ wxString s;
+ s.Printf(_("Your game field is too small for this configuration.\n"
+ "It is recommended to resize it to %u x %u. Proceed?\n"),
+ gw, gh);
+
+ if (wxMessageBox(s, _("Question"), wxYES_NO | wxICON_QUESTION, this) == wxYES)
+ {
+ m_life->Destroy();
+ m_life->Create(gw, gh);
+ }
+ }
+
+ // put the shape
+ m_life->SetShape(g_shapes[result]);
+
+ // tell the canvas about the change
+ m_canvas->Reset();
+ m_canvas->Refresh();
+ m_tics = 0;
+ UpdateInfoText();
+ }
+}
+
void LifeFrame::OnStart()
{
- GetToolBar()->EnableTool(ID_START, FALSE);
- GetToolBar()->EnableTool(ID_STOP, TRUE);
- GetMenuBar()->GetMenu(0)->Enable(ID_START, FALSE);
- GetMenuBar()->GetMenu(0)->Enable(ID_STOP, TRUE);
+ if (!m_running)
+ {
+ GetToolBar()->EnableTool(ID_START, FALSE);
+ GetToolBar()->EnableTool(ID_STOP, TRUE);
+ GetMenuBar()->GetMenu(1)->Enable(ID_START, FALSE);
+ GetMenuBar()->GetMenu(1)->Enable(ID_STEP, FALSE);
+ GetMenuBar()->GetMenu(1)->Enable(ID_STOP, TRUE);
- m_timer->Start(m_interval);
- m_running = TRUE;
+ m_timer->Start(m_interval);
+ m_running = TRUE;
+ }
}
void LifeFrame::OnStop()
{
- GetToolBar()->EnableTool(ID_START, TRUE);
- GetToolBar()->EnableTool(ID_STOP, FALSE);
- GetMenuBar()->GetMenu(0)->Enable(ID_START, TRUE);
- GetMenuBar()->GetMenu(0)->Enable(ID_STOP, FALSE);
-
- m_timer->Stop();
- m_running = FALSE;
+ if (m_running)
+ {
+ GetToolBar()->EnableTool(ID_START, TRUE);
+ GetToolBar()->EnableTool(ID_STOP, FALSE);
+ GetMenuBar()->GetMenu(1)->Enable(ID_START, TRUE);
+ GetMenuBar()->GetMenu(1)->Enable(ID_STEP, TRUE);
+ GetMenuBar()->GetMenu(1)->Enable(ID_STOP, FALSE);
+
+ m_timer->Stop();
+ m_running = FALSE;
+ }
}
void LifeFrame::OnTimer()
// LifeTimer
// --------------------------------------------------------------------------
-/*
-LifeTimer::LifeTimer() : wxTimer()
-{
-}
-*/
-
void LifeTimer::Notify()
{
GET_FRAME()->OnTimer();
-}
+};
// --------------------------------------------------------------------------
-// LifeCavas
+// LifeCanvas
// --------------------------------------------------------------------------
// canvas constructor
-LifeCanvas::LifeCanvas(wxWindow *parent, Life *life)
+LifeCanvas::LifeCanvas(wxWindow *parent, Life *life, bool interactive)
: wxScrolledWindow(parent, -1, wxPoint(0, 0), wxSize(100, 100))
{
- m_life = life;
- m_cellsize = 8;
- m_bmp = NULL;
-
+ m_life = life;
+ m_interactive = interactive;
+ m_cellsize = 8;
+ m_bmp = NULL;
Reset();
}
m_width = CellToCoord(m_life->GetWidth()) + 1;
m_height = CellToCoord(m_life->GetHeight()) + 1;
m_bmp = new wxBitmap(m_width, m_height);
- wxCoord w = GetSize().GetX();
- wxCoord h = GetSize().GetY();
+ wxCoord w = GetClientSize().GetX();
+ wxCoord h = GetClientSize().GetY();
m_xoffset = (w > m_width)? ((w - m_width) / 2) : 0;
m_yoffset = (h > m_height)? ((h - m_height) / 2) : 0;
- // redraw all, incl. background
+ // redraw everything
DrawEverything(TRUE);
SetScrollbars(10, 10, (m_width + 9) / 10, (m_height + 9) / 10);
}
-// draw everything
void LifeCanvas::DrawEverything(bool force)
{
wxMemoryDC dc;
dc.SelectObject(*m_bmp);
dc.BeginDrawing();
- // cells
- for (int j = 0; j < m_life->GetHeight(); j++)
- for (int i = 0; i < m_life->GetWidth(); i++)
+ // draw cells
+ for (int j = 0; j < m_life->GetWidth(); j++)
+ for (int i = 0; i < m_life->GetHeight(); i++)
if (force || m_life->HasChanged(i, j))
DrawCell(i, j, dc);
- // bounding rectangle (always drawn)
+ // bounding rectangle (always drawn - better than clipping region)
dc.SetPen(*wxBLACK_PEN);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawRectangle(0, 0, m_width, m_height);
dc.SelectObject(wxNullBitmap);
}
-// draw a single cell
void LifeCanvas::DrawCell(int i, int j)
{
wxMemoryDC dc;
dc.SelectObject(*m_bmp);
dc.BeginDrawing();
+ dc.SetClippingRegion(1, 1, m_width - 2, m_height - 2);
DrawCell(i, j, dc);
dc.EndDrawing();
wxMemoryDC memdc;
wxRegionIterator upd(GetUpdateRegion());
- int x, y, w, h, xx, yy;
+ wxCoord x, y, w, h, xx, yy;
dc.BeginDrawing();
memdc.SelectObject(*m_bmp);
void LifeCanvas::OnMouse(wxMouseEvent& event)
{
+ if (!m_interactive)
+ return;
+
int x, y, xx, yy, i, j;
// which cell are we pointing at?
// --------------------------------------------------------------------------
LifeNewGameDialog::LifeNewGameDialog(wxWindow *parent, int *w, int *h)
- : wxDialog(parent, -1, _("New game"),
- wxDefaultPosition, wxDefaultSize,
+ : wxDialog(parent, -1,
+ _("New game"),
+ wxDefaultPosition,
+ wxDefaultSize,
wxDEFAULT_DIALOG_STYLE | wxDIALOG_MODAL)
{
m_w = w;
m_h = h;
- wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
-
- // text message
- topsizer->Add( CreateTextSizer(_("Enter board dimensions")), 0, wxALL, 10 );
- topsizer->Add( new wxStaticLine(this, -1), 0, wxGROW | wxLEFT | wxRIGHT | wxBOTTOM, 10);
-
// prompts and text controls
wxString strw, strh;
strw.Printf(_("%u"), *m_w);
m_spinctrlw = new wxSpinCtrl( this, -1, strw );
m_spinctrlh = new wxSpinCtrl( this, -1, strh );
+ // component layout
wxBoxSizer *inputsizer1 = new wxBoxSizer( wxHORIZONTAL );
- inputsizer1->Add( new wxStaticText(this, -1, _("Width")), 1, wxCENTER | wxLEFT, 20);
- inputsizer1->Add( m_spinctrlw, 2, wxCENTER | wxLEFT | wxRIGHT, 20 );
+ inputsizer1->Add( new wxStaticText(this, -1, _("Width")), 1, wxCENTRE | wxLEFT, 20);
+ inputsizer1->Add( m_spinctrlw, 2, wxCENTRE | wxLEFT | wxRIGHT, 20 );
+
wxBoxSizer *inputsizer2 = new wxBoxSizer( wxHORIZONTAL );
- inputsizer2->Add( new wxStaticText(this, -1, _("Height")), 1, wxCENTER | wxLEFT, 20);
- inputsizer2->Add( m_spinctrlh, 2, wxCENTER | wxLEFT | wxRIGHT, 20 );
+ inputsizer2->Add( new wxStaticText(this, -1, _("Height")), 1, wxCENTRE | wxLEFT, 20);
+ inputsizer2->Add( m_spinctrlh, 2, wxCENTRE | wxLEFT | wxRIGHT, 20 );
+ wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
+ topsizer->Add( CreateTextSizer(_("Enter board dimensions")), 0, wxALL, 10 );
+ topsizer->Add( new wxStaticLine(this, -1), 0, wxGROW | wxLEFT | wxRIGHT | wxBOTTOM, 10);
topsizer->Add( inputsizer1, 1, wxGROW | wxLEFT | wxRIGHT, 5 );
topsizer->Add( inputsizer2, 1, wxGROW | wxLEFT | wxRIGHT, 5 );
topsizer->Add( new wxStaticLine(this, -1), 0, wxGROW | wxLEFT | wxRIGHT | wxTOP, 10);
-
- // buttons
topsizer->Add( CreateButtonSizer(wxOK | wxCANCEL), 0, wxCENTRE | wxALL, 10);
// activate
EndModal(wxID_OK);
}
+// --------------------------------------------------------------------------
+// LifeSamplesDialog
+// --------------------------------------------------------------------------
+
+LifeSamplesDialog::LifeSamplesDialog(wxWindow *parent)
+ : wxDialog(parent, -1,
+ _("Sample games"),
+ wxDefaultPosition,
+ wxDefaultSize,
+ wxDEFAULT_DIALOG_STYLE | wxDIALOG_MODAL)
+{
+ m_value = 0;
+
+ // create and populate the list of available samples
+ m_list = new wxListBox( this, ID_LISTBOX,
+ wxDefaultPosition,
+ wxDefaultSize,
+ 0, NULL,
+ wxLB_SINGLE | wxLB_NEEDED_SB | wxLB_HSCROLL );
+
+ for (unsigned i = 0; i < (sizeof(g_shapes) / sizeof(LifeShape)); i++)
+ m_list->Append(g_shapes[i].m_name);
+
+ // descriptions
+ wxStaticBox *statbox = new wxStaticBox( this, -1, _("Description"));
+ m_life = new Life( 16, 16 );
+ m_life->SetShape(g_shapes[0]);
+ m_canvas = new LifeCanvas( this, m_life, FALSE );
+ m_text = new wxTextCtrl( this, -1,
+ g_shapes[0].m_desc,
+ wxDefaultPosition,
+ wxSize(300, 60),
+ wxTE_MULTILINE | wxTE_READONLY);
+
+ // layout components
+ wxStaticBoxSizer *sizer1 = new wxStaticBoxSizer( statbox, wxVERTICAL );
+ sizer1->Add( m_canvas, 2, wxGROW | wxCENTRE | wxALL, 5);
+ sizer1->Add( m_text, 1, wxGROW | wxCENTRE | wxALL, 5 );
+
+ wxBoxSizer *sizer2 = new wxBoxSizer( wxHORIZONTAL );
+ sizer2->Add( m_list, 0, wxGROW | wxCENTRE | wxALL, 5 );
+ sizer2->Add( sizer1, 1, wxGROW | wxCENTRE | wxALL, 5 );
+
+ wxBoxSizer *sizer3 = new wxBoxSizer( wxVERTICAL );
+ sizer3->Add( CreateTextSizer(_("Select one configuration")), 0, wxALL, 10 );
+ sizer3->Add( new wxStaticLine(this, -1), 0, wxGROW | wxLEFT | wxRIGHT, 10 );
+ sizer3->Add( sizer2, 1, wxGROW | wxCENTRE | wxALL, 5 );
+ sizer3->Add( new wxStaticLine(this, -1), 0, wxGROW | wxLEFT | wxRIGHT, 10 );
+ sizer3->Add( CreateButtonSizer(wxOK | wxCANCEL), 0, wxCENTRE | wxALL, 10 );
+
+ // activate
+ SetSizer(sizer3);
+ SetAutoLayout(TRUE);
+ sizer3->SetSizeHints(this);
+ sizer3->Fit(this);
+ Centre(wxBOTH);
+}
+
+LifeSamplesDialog::~LifeSamplesDialog()
+{
+ m_canvas->Destroy();
+ delete m_life;
+}
+
+int LifeSamplesDialog::GetValue()
+{
+ return m_value;
+}
+
+void LifeSamplesDialog::OnListBox(wxCommandEvent& event)
+{
+ if (event.GetSelection() != -1)
+ {
+ m_value = m_list->GetSelection();
+ m_text->SetValue(g_shapes[ event.GetSelection() ].m_desc);
+ m_life->SetShape(g_shapes[ event.GetSelection() ]);
+
+ m_canvas->DrawEverything(TRUE); // force redraw everything
+ m_canvas->Refresh(FALSE); // do not erase background
+ }
+}
+
// --------------------------------------------------------------------------
// Life
// --------------------------------------------------------------------------
Life::Life(int width, int height)
-{
+{
+ m_wrap = TRUE;
+ m_cells = NULL;
Create(width, height);
}
void Life::Create(int width, int height)
{
- wxASSERT(width > 0 || height > 0);
+ wxASSERT(width > 0 && height > 0);
m_width = width;
m_height = height;
bool Life::IsAlive(int x, int y) const
{
- wxASSERT(x < m_width || y < m_height);
+ wxASSERT(x >= 0 && y >= 0 && x < m_width && y < m_height);
return (m_cells[y * m_width + x] & CELL_ALIVE);
}
bool Life::HasChanged(int x, int y) const
{
- wxASSERT(x < m_width || y < m_height);
+ wxASSERT(x >= 0 && y >= 0 && x < m_width && y < m_height);
return (m_cells[y * m_width + x] & CELL_MARK) != 0;
}
+void Life::SetBorderWrap(bool on)
+{
+ m_wrap = on;
+}
+
void Life::SetCell(int x, int y, bool alive)
{
- wxASSERT(x < m_width || y < m_height);
+ wxASSERT(x >= 0 && y >= 0 && x < m_width && y < m_height);
m_cells[y * m_width + x] = (alive? CELL_ALIVE : CELL_DEAD);
}
+void Life::SetShape(LifeShape& shape)
+{
+ wxASSERT((m_width >= shape.m_width) && (m_height >= shape.m_height));
+
+ int x0 = (m_width - shape.m_width) / 2;
+ int y0 = (m_height - shape.m_height) / 2;
+ char *p = shape.m_data;
+
+ Clear();
+ for (int j = y0; j < y0 + shape.m_height; j++)
+ for (int i = x0; i < x0 + shape.m_width; i++)
+ SetCell(i, j, *(p++) == '*');
+}
+
bool Life::NextTic()
{
long changed = 0;
int Life::GetNeighbors(int x, int y) const
{
- wxASSERT(x < m_width || y < m_height);
+ wxASSERT(x >= 0 && y >= 0 && x < m_width && y < m_height);
- // count number of neighbors (wrap around board limits)
int neighbors = 0;
- for (int j = y - 1; j <= y + 1; j++)
- for (int i = x - 1; i <= x + 1; i++)
- {
- if (IsAlive( ((i < 0)? (i + m_width ) : (i % m_width)),
- ((j < 0)? (j + m_height) : (j % m_height)) ))
- neighbors++;
- }
+
+ int i0 = (x)? (x - 1) : 0;
+ int j0 = (y)? (y - 1) : 0;
+ int i1 = (x < (m_width - 1))? (x + 1) : (m_width - 1);
+ int j1 = (y < (m_height - 1))? (y + 1) : (m_height - 1);
+
+ if (m_wrap && ( !x || !y || x == (m_width - 1) || y == (m_height - 1)))
+ {
+ // this is an outer cell and wraparound is on
+ for (int j = y - 1; j <= y + 1; j++)
+ for (int i = x - 1; i <= x + 1; i++)
+ if (IsAlive( ((i < 0)? (i + m_width ) : (i % m_width)),
+ ((j < 0)? (j + m_height) : (j % m_height)) ))
+ neighbors++;
+ }
+ else
+ {
+ // this is an inner cell, or wraparound is off
+ for (int j = j0; j <= j1; j++)
+ for (int i = i0; i <= i1; i++)
+ if (IsAlive(i, j))
+ neighbors++;
+ }
// do not count ourselves
if (IsAlive(x, y)) neighbors--;
void Life::SetCell(int x, int y, Cell status)
{
- wxASSERT(x < m_width || y < m_height);
+ wxASSERT(x >= 0 && y >= 0 && x < m_width && y < m_height);
m_cells[y * m_width + x] = status;
}
projects / wxWidgets.git / commitdiff
