1503 lines
34 KiB
C++
1503 lines
34 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: game.cpp
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// Purpose: Life! game logic
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// Author: Guillermo Rodriguez Garcia, <guille@iies.es>
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// Modified by:
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// Created: Jan/2000
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// Copyright: (c) 2000, Guillermo Rodriguez Garcia
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ==========================================================================
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// headers, declarations, constants
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// ==========================================================================
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/log.h"
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#include "wx/module.h"
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#include "game.h"
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#include <string.h> // for memset
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#define CELLSARRAYSIZE 1024 // static array for BeginFind & co.
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#define ALLOCBOXES 16 // number of cellboxes to alloc at once
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#define MAXDEAD 8 // tics before removing cellbox from list
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// ==========================================================================
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// CellBox
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// ==========================================================================
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#define HASH(x, y) (((x >> 3) & 0x7f) << 7) + ((y >> 3) & 0x7f)
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#define HASHSIZE 16384 // hash table size (do not change!)
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#define CELLBOX 8 // cells in a cellbox (do not change!)
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class LifeCellBox
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{
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public:
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// members
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inline bool IsAlive(int dx, int dy) const;
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inline bool SetCell(int dx, int dy, bool alive);
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// attributes
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wxInt32 m_x, m_y; // position in universe
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wxUint32 m_live1, m_live2; // alive cells (1 bit per cell)
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wxUint32 m_old1, m_old2; // old values for m_live1, 2
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wxUint32 m_on[8]; // neighbouring info
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wxUint32 m_dead; // been dead for n generations
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LifeCellBox *m_up, *m_dn, *m_lf, *m_rt; // neighbour CellBoxes
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LifeCellBox *m_prev, *m_next; // in linked list
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LifeCellBox *m_hprev, *m_hnext; // in hash table
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};
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// IsAlive:
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// Returns whether cell dx, dy in this box is alive
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//
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bool LifeCellBox::IsAlive(int dx, int dy) const
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{
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if (dy > 3)
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return (m_live2 & 1 << ((dy - 4) * 8 + dx)) ? true : false ;
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else
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return (m_live1 & 1 << ((dy) * 8 + dx)) ? true : false ;
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}
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// SetCell:
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// Sets cell dx, dy in this box to 'alive', returns true if
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// the previous value was different, false if it was the same.
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//
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bool LifeCellBox::SetCell(int dx, int dy, bool alive)
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{
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if (IsAlive(dx, dy) != alive)
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{
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if (dy > 3)
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m_live2 ^= 1 << ((dy - 4) * 8 + dx);
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else
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m_live1 ^= 1 << ((dy) * 8 + dx);
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// reset this here to avoid updating problems
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m_dead = 0;
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return true;
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}
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else
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return false;
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}
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// ==========================================================================
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// Life
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// ==========================================================================
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// --------------------------------------------------------------------------
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// Ctor and dtor
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// --------------------------------------------------------------------------
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Life::Life()
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{
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// pattern description
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m_name = wxEmptyString;
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m_rules = wxEmptyString;
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m_description = wxEmptyString;
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// pattern data
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m_numcells = 0;
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m_boxes = new LifeCellBox *[HASHSIZE];
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m_head = NULL;
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m_available = NULL;
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for (int i = 0; i < HASHSIZE; i++)
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m_boxes[i] = NULL;
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// state vars for BeginFind & FindMore
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m_cells = new LifeCell[CELLSARRAYSIZE];
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m_ncells = 0;
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m_findmore = false;
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m_changed = false;
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}
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Life::~Life()
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{
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Clear();
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delete[] m_boxes;
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delete[] m_cells;
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}
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// Clear:
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// Clears the board, freeing all storage.
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//
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void Life::Clear()
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{
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LifeCellBox *c, *nc;
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// clear the hash table pointers
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for (int i = 0; i < HASHSIZE; i++)
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m_boxes[i] = NULL;
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// free used boxes
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c = m_head;
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while (c)
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{
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nc = c->m_next;
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delete c;
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c = nc;
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}
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m_head = NULL;
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// free available boxes
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c = m_available;
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while (c)
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{
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nc = c->m_next;
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delete c;
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c = nc;
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}
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m_available = NULL;
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// reset state
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m_name = wxEmptyString;
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m_rules = wxEmptyString;
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m_description = wxEmptyString;
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m_numcells = 0;
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}
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// --------------------------------------------------------------------------
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// Test and set individual cells
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// --------------------------------------------------------------------------
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// IsAlive:
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// Returns whether cell (x, y) is alive.
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//
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bool Life::IsAlive(wxInt32 x, wxInt32 y)
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{
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LifeCellBox *c = LinkBox(x, y, false);
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return (c && c->IsAlive( x - c->m_x, y - c->m_y ));
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}
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// SetCell:
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// Sets or clears cell (x, y), according to the 'alive' param.
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//
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void Life::SetCell(wxInt32 x, wxInt32 y, bool alive)
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{
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LifeCellBox *c = LinkBox(x, y);
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wxUint32 dx = x - c->m_x;
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wxUint32 dy = y - c->m_y;
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if (c->SetCell(dx, dy, alive))
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{
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if (alive)
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m_numcells++;
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else
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m_numcells--;
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}
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}
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void Life::SetPattern(const LifePattern& pattern)
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{
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wxArrayString data = pattern.m_shape;
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wxString line;
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long x = 0,
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y = 0;
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Clear();
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for (size_t n = 0; n < data.GetCount(); n++)
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{
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line = data[n];
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if ( (line.GetChar(0) != wxT('*')) &&
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(line.GetChar(0) != wxT('.')) )
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{
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// assume that it is a digit or a minus sign
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line.BeforeFirst(wxT(' ')).ToLong(&x);
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line.AfterFirst(wxT(' ')).ToLong(&y);
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}
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else
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{
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// pattern data
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for (size_t k = 0; k < line.Len(); k++)
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SetCell(x + k, y, line.GetChar(k) == wxT('*'));
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y++;
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}
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}
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m_name = pattern.m_name;
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m_rules = pattern.m_rules;
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m_description = pattern.m_description;
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}
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// --------------------------------------------------------------------------
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// Cellbox management functions
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// --------------------------------------------------------------------------
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// CreateBox:
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// Creates a box in x, y, either taking it from the list
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// of available boxes, or allocating a new one.
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//
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LifeCellBox* Life::CreateBox(wxInt32 x, wxInt32 y, wxUint32 hv)
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{
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LifeCellBox *c;
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// if there are no available boxes, alloc a few more
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if (!m_available)
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for (int i = 1; i <= ALLOCBOXES; i++)
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{
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c = new LifeCellBox();
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if (!c)
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{
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// TODO: handle memory errors. Note that right now, if we
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// couldn't allocate at least one cellbox, we will crash
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// before leaving CreateBox(). Probably we should try to
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// allocate some boxes *before* the m_available list goes
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// empty, so that we have a margin to handle errors
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// gracefully.
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wxLogFatalError(_("Out of memory! Aborting..."));
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// NOTREACHED
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}
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c->m_next = m_available;
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m_available = c;
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}
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// take a cellbox from the list of available boxes
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c = m_available;
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m_available = c->m_next;
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// reset everything
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memset((void *) c, 0, sizeof(LifeCellBox));
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c->m_x = x;
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c->m_y = y;
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// insert c in the list
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c->m_next = m_head;
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m_head = c;
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if (c->m_next) c->m_next->m_prev = c;
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// insert c in the hash table
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c->m_hnext = m_boxes[hv];
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m_boxes[hv] = c;
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if (c->m_hnext) c->m_hnext->m_hprev = c;
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return c;
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}
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// LinkBox:
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// Returns a pointer to the box (x, y); if it didn't exist yet,
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// it returns NULL or creates a new one, depending on the value
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// of the 'create' parameter.
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//
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LifeCellBox* Life::LinkBox(wxInt32 x, wxInt32 y, bool create)
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{
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wxUint32 hv;
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LifeCellBox *c;
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x &= 0xfffffff8;
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y &= 0xfffffff8;
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hv = HASH(x, y);
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// search in the hash table
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for (c = m_boxes[hv]; c; c = c->m_hnext)
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if ((c->m_x == x) && (c->m_y == y)) return c;
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// if not found, and (create == true), create a new one
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return create? CreateBox(x, y, hv) : (LifeCellBox*) NULL;
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}
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// KillBox:
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// Removes this box from the list and the hash table and
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// puts it in the list of available boxes.
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//
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void Life::KillBox(LifeCellBox *c)
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{
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wxUint32 hv = HASH(c->m_x, c->m_y);
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// remove from the list
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if (c != m_head)
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c->m_prev->m_next = c->m_next;
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else
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m_head = c->m_next;
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// remove from the hash table
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if (c != m_boxes[hv])
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c->m_hprev->m_hnext = c->m_hnext;
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else
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m_boxes[hv] = c->m_hnext;
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// update neighbours
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if (c->m_next) c->m_next->m_prev = c->m_prev;
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if (c->m_hnext) c->m_hnext->m_hprev = c->m_hprev;
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if (c->m_up) c->m_up->m_dn = NULL;
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if (c->m_dn) c->m_dn->m_up = NULL;
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if (c->m_lf) c->m_lf->m_rt = NULL;
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if (c->m_rt) c->m_rt->m_lf = NULL;
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// append to the list of available boxes
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c->m_next = m_available;
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m_available = c;
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}
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// --------------------------------------------------------------------------
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// Navigation
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// --------------------------------------------------------------------------
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LifeCell Life::FindCenter()
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{
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double sx, sy;
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int n;
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sx = 0.0;
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sy = 0.0;
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n = 0;
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LifeCellBox *c;
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for (c = m_head; c; c = c->m_next)
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if (!c->m_dead)
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{
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sx += c->m_x;
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sy += c->m_y;
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n++;
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}
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if (n > 0)
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{
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sx = (sx / n) + CELLBOX / 2;
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sy = (sy / n) + CELLBOX / 2;
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}
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LifeCell cell;
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cell.i = (wxInt32) sx;
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cell.j = (wxInt32) sy;
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return cell;
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}
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LifeCell Life::FindNorth()
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{
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wxInt32 x = 0, y = 0;
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bool first = true;
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LifeCellBox *c;
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for (c = m_head; c; c = c->m_next)
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if (!c->m_dead && ((first) || (c->m_y < y)))
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{
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x = c->m_x;
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y = c->m_y;
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first = false;
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}
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LifeCell cell;
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cell.i = first? 0 : x + CELLBOX / 2;
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cell.j = first? 0 : y + CELLBOX / 2;
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return cell;
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}
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LifeCell Life::FindSouth()
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{
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wxInt32 x = 0, y = 0;
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bool first = true;
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LifeCellBox *c;
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for (c = m_head; c; c = c->m_next)
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if (!c->m_dead && ((first) || (c->m_y > y)))
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{
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x = c->m_x;
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y = c->m_y;
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first = false;
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}
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LifeCell cell;
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cell.i = first? 0 : x + CELLBOX / 2;
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cell.j = first? 0 : y + CELLBOX / 2;
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return cell;
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}
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LifeCell Life::FindWest()
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{
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wxInt32 x = 0, y = 0;
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bool first = true;
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LifeCellBox *c;
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for (c = m_head; c; c = c->m_next)
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if (!c->m_dead && ((first) || (c->m_x < x)))
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{
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x = c->m_x;
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y = c->m_y;
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first = false;
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}
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LifeCell cell;
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cell.i = first? 0 : x + CELLBOX / 2;
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cell.j = first? 0 : y + CELLBOX / 2;
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return cell;
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}
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LifeCell Life::FindEast()
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{
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wxInt32 x = 0, y = 0;
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bool first = true;
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LifeCellBox *c;
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for (c = m_head; c; c = c->m_next)
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if (!c->m_dead && ((first) || (c->m_x > x)))
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{
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x = c->m_x;
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y = c->m_y;
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first = false;
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}
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LifeCell cell;
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cell.i = first? 0 : x + CELLBOX / 2;
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cell.j = first? 0 : y + CELLBOX / 2;
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return cell;
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}
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// --------------------------------------------------------------------------
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// FindMore & co.
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// --------------------------------------------------------------------------
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// DoLine:
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// Post eight cells to the cell arrays - leave out the fourth
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// argument (or pass 0, the default value) to post alive cells
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// only, else it will post cells which have changed.
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//
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void Life::DoLine(wxInt32 x, wxInt32 y, wxUint32 live, wxUint32 old)
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{
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wxUint32 diff = (live ^ old) & 0xff;
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if (!diff) return;
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for (wxInt32 k = 8; k; k--, x++)
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{
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if (diff & 0x01)
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{
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m_cells[m_ncells].i = x;
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m_cells[m_ncells].j = y;
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m_ncells++;
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}
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diff >>= 1;
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}
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}
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void Life::BeginFind(wxInt32 x0, wxInt32 y0, wxInt32 x1, wxInt32 y1, bool changed)
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{
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// TODO: optimize for the case where the maximum number of
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// cellboxes that fit in the specified viewport is smaller
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// than the current total of boxes; iterating over the list
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// should then be faster than searching in the hash table.
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m_x0 = m_x = x0 & 0xfffffff8;
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m_y0 = m_y = y0 & 0xfffffff8;
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m_x1 = (x1 + 7) & 0xfffffff8;
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m_y1 = (y1 + 7) & 0xfffffff8;
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m_findmore = true;
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m_changed = changed;
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}
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bool Life::FindMore(LifeCell *cells[], size_t *ncells)
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{
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LifeCellBox *c;
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*cells = m_cells;
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m_ncells = 0;
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if (m_changed)
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{
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for ( ; m_y <= m_y1; m_y += 8, m_x = m_x0)
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for ( ; m_x <= m_x1; m_x += 8)
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{
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if ((c = LinkBox(m_x, m_y, false)) == NULL)
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continue;
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// check whether there is enough space left in the array
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if (m_ncells > (CELLSARRAYSIZE - 64))
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{
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*ncells = m_ncells;
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return false;
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}
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DoLine(m_x, m_y , c->m_live1, c->m_old1 );
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DoLine(m_x, m_y + 1, c->m_live1 >> 8, c->m_old1 >> 8 );
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DoLine(m_x, m_y + 2, c->m_live1 >> 16, c->m_old1 >> 16);
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DoLine(m_x, m_y + 3, c->m_live1 >> 24, c->m_old1 >> 24);
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DoLine(m_x, m_y + 4, c->m_live2, c->m_old2 );
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DoLine(m_x, m_y + 5, c->m_live2 >> 8, c->m_old2 >> 8 );
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DoLine(m_x, m_y + 6, c->m_live2 >> 16, c->m_old2 >> 16);
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DoLine(m_x, m_y + 7, c->m_live2 >> 24, c->m_old2 >> 24);
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}
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}
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else
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{
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for ( ; m_y <= m_y1; m_y += 8, m_x = m_x0)
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for ( ; m_x <= m_x1; m_x += 8)
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{
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if ((c = LinkBox(m_x, m_y, false)) == NULL)
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continue;
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// check whether there is enough space left in the array
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if (m_ncells > (CELLSARRAYSIZE - 64))
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{
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*ncells = m_ncells;
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return false;
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}
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|
|
DoLine(m_x, m_y , c->m_live1 );
|
|
DoLine(m_x, m_y + 1, c->m_live1 >> 8 );
|
|
DoLine(m_x, m_y + 2, c->m_live1 >> 16);
|
|
DoLine(m_x, m_y + 3, c->m_live1 >> 24);
|
|
DoLine(m_x, m_y + 4, c->m_live2 );
|
|
DoLine(m_x, m_y + 5, c->m_live2 >> 8 );
|
|
DoLine(m_x, m_y + 6, c->m_live2 >> 16);
|
|
DoLine(m_x, m_y + 7, c->m_live2 >> 24);
|
|
}
|
|
}
|
|
|
|
*ncells = m_ncells;
|
|
m_findmore = false;
|
|
return true;
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// Evolution engine
|
|
// --------------------------------------------------------------------------
|
|
|
|
extern unsigned char *g_tab;
|
|
extern int g_tab1[];
|
|
extern int g_tab2[];
|
|
|
|
// NextTic:
|
|
// Advance one step in evolution :-)
|
|
//
|
|
bool Life::NextTic()
|
|
{
|
|
LifeCellBox *c, *up, *dn, *lf, *rt;
|
|
wxUint32 t1, t2, t3, t4;
|
|
bool changed = false;
|
|
|
|
m_numcells = 0;
|
|
|
|
// Stage 1:
|
|
// Compute neighbours of each cell
|
|
//
|
|
// WARNING: unrolled loops and lengthy code follows!
|
|
//
|
|
c = m_head;
|
|
|
|
while (c)
|
|
{
|
|
if (! (c->m_live1 || c->m_live2))
|
|
{
|
|
c = c->m_next;
|
|
continue;
|
|
}
|
|
up = c->m_up;
|
|
dn = c->m_dn;
|
|
lf = c->m_lf;
|
|
rt = c->m_rt;
|
|
|
|
// up
|
|
t1 = c->m_live1 & 0x000000ff;
|
|
if (t1)
|
|
{
|
|
if (!up)
|
|
{
|
|
up = LinkBox(c->m_x, c->m_y - 8);
|
|
up->m_dn = c;
|
|
}
|
|
t2 = g_tab1[t1];
|
|
up->m_on[7] += t2;
|
|
c->m_on[1] += t2;
|
|
c->m_on[0] += g_tab2[t1];
|
|
}
|
|
|
|
// down
|
|
t1 = (c->m_live2 & 0xff000000) >> 24;
|
|
if (t1)
|
|
{
|
|
if (!dn)
|
|
{
|
|
dn = LinkBox(c->m_x, c->m_y + 8);
|
|
dn->m_up = c;
|
|
}
|
|
t2 = g_tab1[t1];
|
|
dn->m_on[0] += t2;
|
|
c->m_on[6] += t2;
|
|
c->m_on[7] += g_tab2[t1];
|
|
}
|
|
|
|
t1 = c->m_live1;
|
|
t2 = c->m_live2;
|
|
|
|
// left
|
|
if (t1 & 0x01010101)
|
|
{
|
|
if (!lf)
|
|
{
|
|
lf = LinkBox(c->m_x - 8, c->m_y);
|
|
lf->m_rt = c;
|
|
}
|
|
if (t1 & 0x00000001)
|
|
{
|
|
if (!lf->m_up)
|
|
{
|
|
lf->m_up = LinkBox(c->m_x - 8, c->m_y - 8);
|
|
lf->m_up->m_dn = lf;
|
|
}
|
|
lf->m_up->m_on[7] += 0x10000000;
|
|
lf->m_on[0] += 0x10000000;
|
|
lf->m_on[1] += 0x10000000;
|
|
}
|
|
if (t1 & 0x00000100)
|
|
{
|
|
lf->m_on[0] += 0x10000000;
|
|
lf->m_on[1] += 0x10000000;
|
|
lf->m_on[2] += 0x10000000;
|
|
}
|
|
if (t1 & 0x00010000)
|
|
{
|
|
lf->m_on[1] += 0x10000000;
|
|
lf->m_on[2] += 0x10000000;
|
|
lf->m_on[3] += 0x10000000;
|
|
}
|
|
if (t1 & 0x01000000)
|
|
{
|
|
lf->m_on[2] += 0x10000000;
|
|
lf->m_on[3] += 0x10000000;
|
|
lf->m_on[4] += 0x10000000;
|
|
}
|
|
}
|
|
if (t2 & 0x01010101)
|
|
{
|
|
if (!lf)
|
|
{
|
|
lf = LinkBox(c->m_x - 8, c->m_y);
|
|
lf->m_rt = c;
|
|
}
|
|
if (t2 & 0x00000001)
|
|
{
|
|
lf->m_on[3] += 0x10000000;
|
|
lf->m_on[4] += 0x10000000;
|
|
lf->m_on[5] += 0x10000000;
|
|
}
|
|
if (t2 & 0x00000100)
|
|
{
|
|
lf->m_on[4] += 0x10000000;
|
|
lf->m_on[5] += 0x10000000;
|
|
lf->m_on[6] += 0x10000000;
|
|
}
|
|
if (t2 & 0x00010000)
|
|
{
|
|
lf->m_on[5] += 0x10000000;
|
|
lf->m_on[6] += 0x10000000;
|
|
lf->m_on[7] += 0x10000000;
|
|
}
|
|
if (t2 & 0x01000000)
|
|
{
|
|
if (!lf->m_dn)
|
|
{
|
|
lf->m_dn = LinkBox(c->m_x - 8, c->m_y + 8);
|
|
lf->m_dn->m_up = lf;
|
|
}
|
|
lf->m_on[6] += 0x10000000;
|
|
lf->m_on[7] += 0x10000000;
|
|
lf->m_dn->m_on[0] += 0x10000000;
|
|
}
|
|
}
|
|
|
|
// right
|
|
if (t1 & 0x80808080)
|
|
{
|
|
if (!rt)
|
|
{
|
|
rt = LinkBox(c->m_x + 8, c->m_y);
|
|
rt->m_lf = c;
|
|
}
|
|
if (t1 & 0x00000080)
|
|
{
|
|
if (!rt->m_up)
|
|
{
|
|
rt->m_up = LinkBox(c->m_x + 8, c->m_y - 8);
|
|
rt->m_up->m_dn = rt;
|
|
}
|
|
rt->m_up->m_on[7] += 0x00000001;
|
|
rt->m_on[0] += 0x00000001;
|
|
rt->m_on[1] += 0x00000001;
|
|
}
|
|
if (t1 & 0x00008000)
|
|
{
|
|
rt->m_on[0] += 0x00000001;
|
|
rt->m_on[1] += 0x00000001;
|
|
rt->m_on[2] += 0x00000001;
|
|
}
|
|
if (t1 & 0x00800000)
|
|
{
|
|
rt->m_on[1] += 0x00000001;
|
|
rt->m_on[2] += 0x00000001;
|
|
rt->m_on[3] += 0x00000001;
|
|
}
|
|
if (t1 & 0x80000000)
|
|
{
|
|
rt->m_on[2] += 0x00000001;
|
|
rt->m_on[3] += 0x00000001;
|
|
rt->m_on[4] += 0x00000001;
|
|
}
|
|
}
|
|
if (t2 & 0x80808080)
|
|
{
|
|
if (!rt)
|
|
{
|
|
rt = LinkBox(c->m_x + 8, c->m_y);
|
|
rt->m_lf = c;
|
|
}
|
|
if (t2 & 0x00000080)
|
|
{
|
|
rt->m_on[3] += 0x00000001;
|
|
rt->m_on[4] += 0x00000001;
|
|
rt->m_on[5] += 0x00000001;
|
|
}
|
|
if (t2 & 0x00008000)
|
|
{
|
|
rt->m_on[4] += 0x00000001;
|
|
rt->m_on[5] += 0x00000001;
|
|
rt->m_on[6] += 0x00000001;
|
|
}
|
|
if (t2 & 0x00800000)
|
|
{
|
|
rt->m_on[5] += 0x00000001;
|
|
rt->m_on[6] += 0x00000001;
|
|
rt->m_on[7] += 0x00000001;
|
|
}
|
|
if (t2 & 0x80000000)
|
|
{
|
|
if (!rt->m_dn)
|
|
{
|
|
rt->m_dn = LinkBox(c->m_x + 8, c->m_y + 8);
|
|
rt->m_dn->m_up = rt;
|
|
}
|
|
rt->m_on[6] += 0x00000001;
|
|
rt->m_on[7] += 0x00000001;
|
|
rt->m_dn->m_on[0] += 0x00000001;
|
|
}
|
|
}
|
|
|
|
// inner cells
|
|
int i;
|
|
for (i = 1; i <= 3; i++)
|
|
{
|
|
t1 = ((c->m_live1) >> (i * 8)) & 0x000000ff;
|
|
if (t1)
|
|
{
|
|
c->m_on[i - 1] += g_tab1[t1];
|
|
c->m_on[i ] += g_tab2[t1];
|
|
c->m_on[i + 1] += g_tab1[t1];
|
|
}
|
|
}
|
|
for (i = 0; i <= 2; i++)
|
|
{
|
|
t1 = ((c->m_live2) >> (i * 8)) & 0x000000ff;
|
|
if (t1)
|
|
{
|
|
c->m_on[i + 3] += g_tab1[t1];
|
|
c->m_on[i + 4] += g_tab2[t1];
|
|
c->m_on[i + 5] += g_tab1[t1];
|
|
}
|
|
}
|
|
|
|
c->m_up = up;
|
|
c->m_dn = dn;
|
|
c->m_lf = lf;
|
|
c->m_rt = rt;
|
|
c = c->m_next;
|
|
}
|
|
|
|
// Stage 2:
|
|
// Stabilize
|
|
//
|
|
c = m_head;
|
|
|
|
while (c)
|
|
{
|
|
t1 = 0;
|
|
t2 = 0;
|
|
|
|
t3 = c->m_live1;
|
|
c->m_old1 = t3;
|
|
|
|
t4 = c->m_on[0];
|
|
t1 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 ) & 0xf) ];
|
|
t1 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 4 ) & 0xf) ] << 4;
|
|
t4 = c->m_on[1];
|
|
t1 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 >> 8 ) & 0xf) ] << 8;
|
|
t1 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 12) & 0xf) ] << 12;
|
|
t4 = c->m_on[2];
|
|
t1 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 >> 16) & 0xf) ] << 16;
|
|
t1 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 20) & 0xf) ] << 20;
|
|
t4 = c->m_on[3];
|
|
t1 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 >> 24) & 0xf) ] << 24;
|
|
t1 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 28) & 0xf) ] << 28;
|
|
|
|
t3 = c->m_live2;
|
|
c->m_old2 = t3;
|
|
|
|
t4 = c->m_on[4];
|
|
t2 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 ) & 0xf) ];
|
|
t2 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 4 ) & 0xf) ] << 4;
|
|
t4 = c->m_on[5];
|
|
t2 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 >> 8 ) & 0xf) ] << 8;
|
|
t2 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 12) & 0xf) ] << 12;
|
|
t4 = c->m_on[6];
|
|
t2 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 >> 16) & 0xf) ] << 16;
|
|
t2 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 20) & 0xf) ] << 20;
|
|
t4 = c->m_on[7];
|
|
t2 |= g_tab[ ((t4 & 0x0000ffff) << 4 ) + ((t3 >> 24) & 0xf) ] << 24;
|
|
t2 |= g_tab[ ((t4 & 0xffff0000) >> 12) + ((t3 >> 28) & 0xf) ] << 28;
|
|
|
|
c->m_on[0] = c->m_on[1] = c->m_on[2] = c->m_on[3] =
|
|
c->m_on[4] = c->m_on[5] = c->m_on[6] = c->m_on[7] = 0;
|
|
c->m_live1 = t1;
|
|
c->m_live2 = t2;
|
|
|
|
// count alive cells
|
|
#if 1
|
|
wxUint32 t1_, t2_;
|
|
|
|
t1_ = (t1 & 0x55555555) + (t1 >> 1 & 0x55555555);
|
|
t1_ = (t1_ & 0x33333333) + (t1_ >> 2 & 0x33333333);
|
|
|
|
t2_ = (t2 & 0x55555555) + (t2 >> 1 & 0x55555555);
|
|
t2_ = (t2_ & 0x33333333) + (t2_ >> 2 & 0x33333333) + t1_;
|
|
t2_ = (t2_ & 0x0F0F0F0F) + (t2_ >> 4 & 0x0F0F0F0F);
|
|
t2_ = (t2_ & 0x00FF00FF) + (t2_ >> 8 & 0x00FF00FF);
|
|
|
|
m_numcells += (t2_ & 0xFF) + (t2_ >> 16 & 0xFF);
|
|
#else
|
|
// Original, slower code
|
|
for (int i = 0; i < 32; i++)
|
|
{
|
|
if (t1 & (1 << i)) m_numcells++;
|
|
if (t2 & (1 << i)) m_numcells++;
|
|
}
|
|
#endif
|
|
|
|
changed |= ((t1 ^ c->m_old1) || (t2 ^ c->m_old2));
|
|
|
|
// mark, and discard if necessary, dead boxes
|
|
if (t1 || t2)
|
|
{
|
|
c->m_dead = 0;
|
|
c = c->m_next;
|
|
}
|
|
else
|
|
{
|
|
LifeCellBox *aux = c->m_next;
|
|
if (c->m_dead++ > MAXDEAD)
|
|
KillBox(c);
|
|
|
|
c = aux;
|
|
}
|
|
}
|
|
|
|
return changed;
|
|
}
|
|
|
|
// ==========================================================================
|
|
// LifeModule
|
|
// ==========================================================================
|
|
|
|
// A module to pregenerate lookup tables without having to do it
|
|
// from the application.
|
|
|
|
class LifeModule: public wxModule
|
|
{
|
|
DECLARE_DYNAMIC_CLASS(LifeModule)
|
|
|
|
public:
|
|
LifeModule() {};
|
|
bool OnInit();
|
|
void OnExit();
|
|
};
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(LifeModule, wxModule)
|
|
|
|
bool LifeModule::OnInit()
|
|
{
|
|
// see below
|
|
g_tab = new unsigned char [0xfffff];
|
|
|
|
if (!g_tab) return false;
|
|
|
|
for (wxUint32 i = 0; i < 0xfffff; i++)
|
|
{
|
|
wxUint32 val = i >> 4;
|
|
wxUint32 old = i & 0x0000f;
|
|
wxUint32 live = 0;
|
|
|
|
for (int j = 0; j < 4; j++)
|
|
{
|
|
live >>= 1;
|
|
|
|
if (((val & 0xf) == 3) || (((val & 0xf) == 2) && (old & 0x1)))
|
|
live |= 0x8;
|
|
|
|
old >>= 1;
|
|
val >>= 4;
|
|
}
|
|
|
|
g_tab[i] = (unsigned char) live;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void LifeModule::OnExit()
|
|
{
|
|
delete [] g_tab;
|
|
}
|
|
|
|
|
|
// This table converts from number of neighbors (like in on[]) to
|
|
// bits, for a set of four cells. It takes as index a five-digit
|
|
// hexadecimal value (0xNNNNB) where Ns hold number of neighbors
|
|
// for each cell and B holds their previous state.
|
|
//
|
|
unsigned char *g_tab;
|
|
|
|
// This table converts from bits (like in live1, live2) to number
|
|
// of neighbors for each cell in the upper or lower row.
|
|
//
|
|
int g_tab1[]=
|
|
{
|
|
0x00000000,
|
|
0x00000011,
|
|
0x00000111,
|
|
0x00000122,
|
|
0x00001110,
|
|
0x00001121,
|
|
0x00001221,
|
|
0x00001232,
|
|
0x00011100,
|
|
0x00011111,
|
|
0x00011211,
|
|
0x00011222,
|
|
0x00012210,
|
|
0x00012221,
|
|
0x00012321,
|
|
0x00012332,
|
|
0x00111000,
|
|
0x00111011,
|
|
0x00111111,
|
|
0x00111122,
|
|
0x00112110,
|
|
0x00112121,
|
|
0x00112221,
|
|
0x00112232,
|
|
0x00122100,
|
|
0x00122111,
|
|
0x00122211,
|
|
0x00122222,
|
|
0x00123210,
|
|
0x00123221,
|
|
0x00123321,
|
|
0x00123332,
|
|
0x01110000,
|
|
0x01110011,
|
|
0x01110111,
|
|
0x01110122,
|
|
0x01111110,
|
|
0x01111121,
|
|
0x01111221,
|
|
0x01111232,
|
|
0x01121100,
|
|
0x01121111,
|
|
0x01121211,
|
|
0x01121222,
|
|
0x01122210,
|
|
0x01122221,
|
|
0x01122321,
|
|
0x01122332,
|
|
0x01221000,
|
|
0x01221011,
|
|
0x01221111,
|
|
0x01221122,
|
|
0x01222110,
|
|
0x01222121,
|
|
0x01222221,
|
|
0x01222232,
|
|
0x01232100,
|
|
0x01232111,
|
|
0x01232211,
|
|
0x01232222,
|
|
0x01233210,
|
|
0x01233221,
|
|
0x01233321,
|
|
0x01233332,
|
|
0x11100000,
|
|
0x11100011,
|
|
0x11100111,
|
|
0x11100122,
|
|
0x11101110,
|
|
0x11101121,
|
|
0x11101221,
|
|
0x11101232,
|
|
0x11111100,
|
|
0x11111111,
|
|
0x11111211,
|
|
0x11111222,
|
|
0x11112210,
|
|
0x11112221,
|
|
0x11112321,
|
|
0x11112332,
|
|
0x11211000,
|
|
0x11211011,
|
|
0x11211111,
|
|
0x11211122,
|
|
0x11212110,
|
|
0x11212121,
|
|
0x11212221,
|
|
0x11212232,
|
|
0x11222100,
|
|
0x11222111,
|
|
0x11222211,
|
|
0x11222222,
|
|
0x11223210,
|
|
0x11223221,
|
|
0x11223321,
|
|
0x11223332,
|
|
0x12210000,
|
|
0x12210011,
|
|
0x12210111,
|
|
0x12210122,
|
|
0x12211110,
|
|
0x12211121,
|
|
0x12211221,
|
|
0x12211232,
|
|
0x12221100,
|
|
0x12221111,
|
|
0x12221211,
|
|
0x12221222,
|
|
0x12222210,
|
|
0x12222221,
|
|
0x12222321,
|
|
0x12222332,
|
|
0x12321000,
|
|
0x12321011,
|
|
0x12321111,
|
|
0x12321122,
|
|
0x12322110,
|
|
0x12322121,
|
|
0x12322221,
|
|
0x12322232,
|
|
0x12332100,
|
|
0x12332111,
|
|
0x12332211,
|
|
0x12332222,
|
|
0x12333210,
|
|
0x12333221,
|
|
0x12333321,
|
|
0x12333332,
|
|
0x11000000,
|
|
0x11000011,
|
|
0x11000111,
|
|
0x11000122,
|
|
0x11001110,
|
|
0x11001121,
|
|
0x11001221,
|
|
0x11001232,
|
|
0x11011100,
|
|
0x11011111,
|
|
0x11011211,
|
|
0x11011222,
|
|
0x11012210,
|
|
0x11012221,
|
|
0x11012321,
|
|
0x11012332,
|
|
0x11111000,
|
|
0x11111011,
|
|
0x11111111,
|
|
0x11111122,
|
|
0x11112110,
|
|
0x11112121,
|
|
0x11112221,
|
|
0x11112232,
|
|
0x11122100,
|
|
0x11122111,
|
|
0x11122211,
|
|
0x11122222,
|
|
0x11123210,
|
|
0x11123221,
|
|
0x11123321,
|
|
0x11123332,
|
|
0x12110000,
|
|
0x12110011,
|
|
0x12110111,
|
|
0x12110122,
|
|
0x12111110,
|
|
0x12111121,
|
|
0x12111221,
|
|
0x12111232,
|
|
0x12121100,
|
|
0x12121111,
|
|
0x12121211,
|
|
0x12121222,
|
|
0x12122210,
|
|
0x12122221,
|
|
0x12122321,
|
|
0x12122332,
|
|
0x12221000,
|
|
0x12221011,
|
|
0x12221111,
|
|
0x12221122,
|
|
0x12222110,
|
|
0x12222121,
|
|
0x12222221,
|
|
0x12222232,
|
|
0x12232100,
|
|
0x12232111,
|
|
0x12232211,
|
|
0x12232222,
|
|
0x12233210,
|
|
0x12233221,
|
|
0x12233321,
|
|
0x12233332,
|
|
0x22100000,
|
|
0x22100011,
|
|
0x22100111,
|
|
0x22100122,
|
|
0x22101110,
|
|
0x22101121,
|
|
0x22101221,
|
|
0x22101232,
|
|
0x22111100,
|
|
0x22111111,
|
|
0x22111211,
|
|
0x22111222,
|
|
0x22112210,
|
|
0x22112221,
|
|
0x22112321,
|
|
0x22112332,
|
|
0x22211000,
|
|
0x22211011,
|
|
0x22211111,
|
|
0x22211122,
|
|
0x22212110,
|
|
0x22212121,
|
|
0x22212221,
|
|
0x22212232,
|
|
0x22222100,
|
|
0x22222111,
|
|
0x22222211,
|
|
0x22222222,
|
|
0x22223210,
|
|
0x22223221,
|
|
0x22223321,
|
|
0x22223332,
|
|
0x23210000,
|
|
0x23210011,
|
|
0x23210111,
|
|
0x23210122,
|
|
0x23211110,
|
|
0x23211121,
|
|
0x23211221,
|
|
0x23211232,
|
|
0x23221100,
|
|
0x23221111,
|
|
0x23221211,
|
|
0x23221222,
|
|
0x23222210,
|
|
0x23222221,
|
|
0x23222321,
|
|
0x23222332,
|
|
0x23321000,
|
|
0x23321011,
|
|
0x23321111,
|
|
0x23321122,
|
|
0x23322110,
|
|
0x23322121,
|
|
0x23322221,
|
|
0x23322232,
|
|
0x23332100,
|
|
0x23332111,
|
|
0x23332211,
|
|
0x23332222,
|
|
0x23333210,
|
|
0x23333221,
|
|
0x23333321,
|
|
0x23333332
|
|
};
|
|
|
|
// This table converts from bits (like in live1, live2) to number
|
|
// of neighbors for each cell in the same row (excluding ourselves)
|
|
//
|
|
int g_tab2[]=
|
|
{
|
|
0x00000000,
|
|
0x00000010,
|
|
0x00000101,
|
|
0x00000111,
|
|
0x00001010,
|
|
0x00001020,
|
|
0x00001111,
|
|
0x00001121,
|
|
0x00010100,
|
|
0x00010110,
|
|
0x00010201,
|
|
0x00010211,
|
|
0x00011110,
|
|
0x00011120,
|
|
0x00011211,
|
|
0x00011221,
|
|
0x00101000,
|
|
0x00101010,
|
|
0x00101101,
|
|
0x00101111,
|
|
0x00102010,
|
|
0x00102020,
|
|
0x00102111,
|
|
0x00102121,
|
|
0x00111100,
|
|
0x00111110,
|
|
0x00111201,
|
|
0x00111211,
|
|
0x00112110,
|
|
0x00112120,
|
|
0x00112211,
|
|
0x00112221,
|
|
0x01010000,
|
|
0x01010010,
|
|
0x01010101,
|
|
0x01010111,
|
|
0x01011010,
|
|
0x01011020,
|
|
0x01011111,
|
|
0x01011121,
|
|
0x01020100,
|
|
0x01020110,
|
|
0x01020201,
|
|
0x01020211,
|
|
0x01021110,
|
|
0x01021120,
|
|
0x01021211,
|
|
0x01021221,
|
|
0x01111000,
|
|
0x01111010,
|
|
0x01111101,
|
|
0x01111111,
|
|
0x01112010,
|
|
0x01112020,
|
|
0x01112111,
|
|
0x01112121,
|
|
0x01121100,
|
|
0x01121110,
|
|
0x01121201,
|
|
0x01121211,
|
|
0x01122110,
|
|
0x01122120,
|
|
0x01122211,
|
|
0x01122221,
|
|
0x10100000,
|
|
0x10100010,
|
|
0x10100101,
|
|
0x10100111,
|
|
0x10101010,
|
|
0x10101020,
|
|
0x10101111,
|
|
0x10101121,
|
|
0x10110100,
|
|
0x10110110,
|
|
0x10110201,
|
|
0x10110211,
|
|
0x10111110,
|
|
0x10111120,
|
|
0x10111211,
|
|
0x10111221,
|
|
0x10201000,
|
|
0x10201010,
|
|
0x10201101,
|
|
0x10201111,
|
|
0x10202010,
|
|
0x10202020,
|
|
0x10202111,
|
|
0x10202121,
|
|
0x10211100,
|
|
0x10211110,
|
|
0x10211201,
|
|
0x10211211,
|
|
0x10212110,
|
|
0x10212120,
|
|
0x10212211,
|
|
0x10212221,
|
|
0x11110000,
|
|
0x11110010,
|
|
0x11110101,
|
|
0x11110111,
|
|
0x11111010,
|
|
0x11111020,
|
|
0x11111111,
|
|
0x11111121,
|
|
0x11120100,
|
|
0x11120110,
|
|
0x11120201,
|
|
0x11120211,
|
|
0x11121110,
|
|
0x11121120,
|
|
0x11121211,
|
|
0x11121221,
|
|
0x11211000,
|
|
0x11211010,
|
|
0x11211101,
|
|
0x11211111,
|
|
0x11212010,
|
|
0x11212020,
|
|
0x11212111,
|
|
0x11212121,
|
|
0x11221100,
|
|
0x11221110,
|
|
0x11221201,
|
|
0x11221211,
|
|
0x11222110,
|
|
0x11222120,
|
|
0x11222211,
|
|
0x11222221,
|
|
0x01000000,
|
|
0x01000010,
|
|
0x01000101,
|
|
0x01000111,
|
|
0x01001010,
|
|
0x01001020,
|
|
0x01001111,
|
|
0x01001121,
|
|
0x01010100,
|
|
0x01010110,
|
|
0x01010201,
|
|
0x01010211,
|
|
0x01011110,
|
|
0x01011120,
|
|
0x01011211,
|
|
0x01011221,
|
|
0x01101000,
|
|
0x01101010,
|
|
0x01101101,
|
|
0x01101111,
|
|
0x01102010,
|
|
0x01102020,
|
|
0x01102111,
|
|
0x01102121,
|
|
0x01111100,
|
|
0x01111110,
|
|
0x01111201,
|
|
0x01111211,
|
|
0x01112110,
|
|
0x01112120,
|
|
0x01112211,
|
|
0x01112221,
|
|
0x02010000,
|
|
0x02010010,
|
|
0x02010101,
|
|
0x02010111,
|
|
0x02011010,
|
|
0x02011020,
|
|
0x02011111,
|
|
0x02011121,
|
|
0x02020100,
|
|
0x02020110,
|
|
0x02020201,
|
|
0x02020211,
|
|
0x02021110,
|
|
0x02021120,
|
|
0x02021211,
|
|
0x02021221,
|
|
0x02111000,
|
|
0x02111010,
|
|
0x02111101,
|
|
0x02111111,
|
|
0x02112010,
|
|
0x02112020,
|
|
0x02112111,
|
|
0x02112121,
|
|
0x02121100,
|
|
0x02121110,
|
|
0x02121201,
|
|
0x02121211,
|
|
0x02122110,
|
|
0x02122120,
|
|
0x02122211,
|
|
0x02122221,
|
|
0x11100000,
|
|
0x11100010,
|
|
0x11100101,
|
|
0x11100111,
|
|
0x11101010,
|
|
0x11101020,
|
|
0x11101111,
|
|
0x11101121,
|
|
0x11110100,
|
|
0x11110110,
|
|
0x11110201,
|
|
0x11110211,
|
|
0x11111110,
|
|
0x11111120,
|
|
0x11111211,
|
|
0x11111221,
|
|
0x11201000,
|
|
0x11201010,
|
|
0x11201101,
|
|
0x11201111,
|
|
0x11202010,
|
|
0x11202020,
|
|
0x11202111,
|
|
0x11202121,
|
|
0x11211100,
|
|
0x11211110,
|
|
0x11211201,
|
|
0x11211211,
|
|
0x11212110,
|
|
0x11212120,
|
|
0x11212211,
|
|
0x11212221,
|
|
0x12110000,
|
|
0x12110010,
|
|
0x12110101,
|
|
0x12110111,
|
|
0x12111010,
|
|
0x12111020,
|
|
0x12111111,
|
|
0x12111121,
|
|
0x12120100,
|
|
0x12120110,
|
|
0x12120201,
|
|
0x12120211,
|
|
0x12121110,
|
|
0x12121120,
|
|
0x12121211,
|
|
0x12121221,
|
|
0x12211000,
|
|
0x12211010,
|
|
0x12211101,
|
|
0x12211111,
|
|
0x12212010,
|
|
0x12212020,
|
|
0x12212111,
|
|
0x12212121,
|
|
0x12221100,
|
|
0x12221110,
|
|
0x12221201,
|
|
0x12221211,
|
|
0x12222110,
|
|
0x12222120,
|
|
0x12222211,
|
|
0x12222221
|
|
};
|