4f4c5fcfdf
This is a combination of running clang-tidy with modernize-use-nullptr check for some ports (GTK, X11, OSX) and manual changes to the ports for which it couldn't be used easily (MSW, DFB) and also manually updating the docs. Also replace NULL with null or nullptr in the comments as this is more consistent with the use of nullptr in the code and makes it simpler to grep for the remaining occurrences of NULL itself. And also use null in the assert messages. Only a few occurrences of "NULL" are still left in non-C files, mostly corresponding to unclear comments or string output which it might not be safe to change.
288 lines
8.2 KiB
C++
288 lines
8.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: pile.cpp
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// Purpose: Forty Thieves patience game
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// Author: Chris Breeze
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// Modified by:
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// Created: 21/07/97
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// Copyright: (c) 1993-1998 Chris Breeze
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// Licence: wxWindows licence
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//---------------------------------------------------------------------------
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// Last modified: 22nd July 1998 - ported to wxWidgets 2.0
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/////////////////////////////////////////////////////////////////////////////
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//+-------------------------------------------------------------+
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//| Description: |
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//| The base class for holding piles of playing cards. |
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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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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <time.h>
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#include <string.h>
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#include "card.h"
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#include "pile.h"
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#include "forty.h"
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#include "canvas.h"
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#include "wx/app.h"
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//+-------------------------------------------------------------+
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//| Pile::Pile() |
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//+-------------------------------------------------------------+
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//| Description: |
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//| Initialise the pile to be empty of cards. |
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//+-------------------------------------------------------------+
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Pile::Pile(int x, int y, int dx, int dy)
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{
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m_x = x;
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m_y = y;
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m_dx = dx;
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m_dy = dy;
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for (m_topCard = 0; m_topCard < NumCards; m_topCard++)
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{
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m_cards[m_topCard] = 0;
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}
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m_topCard = -1; // i.e. empty
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}
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//+-------------------------------------------------------------+
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//| Pile::Redraw() |
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//+-------------------------------------------------------------+
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//| Description: |
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//| Redraw the pile on the screen. If the pile is empty |
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//| just draw a null card as a place holder for the pile. |
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//| Otherwise draw the pile from the bottom up, starting |
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//| at the origin of the pile, shifting each subsequent |
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//| card by the pile's x and y offsets. |
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//+-------------------------------------------------------------+
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void Pile::Redraw(wxDC& dc )
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{
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FortyFrame *frame = (FortyFrame*) wxTheApp->GetTopWindow();
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wxWindow *canvas = nullptr;
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if (frame)
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{
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canvas = frame->GetCanvas();
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}
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if (m_topCard >= 0)
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{
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if (m_dx == 0 && m_dy == 0)
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{
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if ((canvas) && (canvas->IsExposed(m_x,m_y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
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m_cards[m_topCard]->Draw(dc, m_x, m_y);
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}
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else
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{
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int x = m_x;
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int y = m_y;
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for (int i = 0; i <= m_topCard; i++)
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{
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if ((canvas) && (canvas->IsExposed(x,y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
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m_cards[i]->Draw(dc, x, y);
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x += (int)Card::GetScale()*m_dx;
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y += (int)Card::GetScale()*m_dy;
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}
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}
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}
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else
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{
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if ((canvas) && (canvas->IsExposed(m_x,m_y,(int)(Card::GetScale()*60),(int)(Card::GetScale()*200))))
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Card::DrawNullCard(dc, m_x, m_y);
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}
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}
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//+-------------------------------------------------------------+
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//| Pile::GetTopCard() |
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//+-------------------------------------------------------------+
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//| Description: |
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//| Return a pointer to the top card in the pile or nullptr |
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//| if the pile is empty. |
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//| NB: Gets a copy of the card without removing it from the |
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//| pile. |
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//+-------------------------------------------------------------+
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Card* Pile::GetTopCard()
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{
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Card* card = 0;
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if (m_topCard >= 0)
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{
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card = m_cards[m_topCard];
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}
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return card;
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}
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//+-------------------------------------------------------------+
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//| Pile::RemoveTopCard() |
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//+-------------------------------------------------------------+
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//| Description: |
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//| If the pile is not empty, remove the top card from the |
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//| pile and return the pointer to the removed card. |
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//| If the pile is empty return a null pointer. |
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//+-------------------------------------------------------------+
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Card* Pile::RemoveTopCard()
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{
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Card* card = 0;
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if (m_topCard >= 0)
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{
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card = m_cards[m_topCard--];
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}
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return card;
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}
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//+-------------------------------------------------------------+
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//| Pile::RemoveTopCard() |
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//+-------------------------------------------------------------+
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//| Description: |
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//| As RemoveTopCard() but also redraw the top of the pile |
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//| after the card has been removed. |
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//| NB: the offset allows for the redrawn area to be in a |
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//| bitmap ready for 'dragging' cards acrosss the screen. |
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//+-------------------------------------------------------------+
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Card* Pile::RemoveTopCard(wxDC& dc, int xOffset, int yOffset)
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{
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int topX, topY;
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GetTopCardPos(topX, topY);
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Card* card = RemoveTopCard();
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if (card)
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{
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int x, y;
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card->Erase(dc, topX - xOffset, topY - yOffset);
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GetTopCardPos(x, y);
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if (m_topCard < 0)
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{
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Card::DrawNullCard(dc, x - xOffset, y - yOffset);
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}
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else
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{
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m_cards[m_topCard]->Draw(dc, x - xOffset, y - yOffset);
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}
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}
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return card;
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}
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void Pile::GetTopCardPos(int& x, int& y)
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{
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if (m_topCard < 0)
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{
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x = m_x;
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y = m_y;
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}
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else
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{
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x = m_x + (int)Card::GetScale()*m_dx * m_topCard;
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y = m_y + (int)Card::GetScale()*m_dy * m_topCard;
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}
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}
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void Pile::AddCard(Card* card)
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{
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if (m_topCard < -1) m_topCard = -1;
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m_cards[++m_topCard] = card;
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}
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void Pile::AddCard(wxDC& dc, Card* card)
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{
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AddCard(card);
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int x, y;
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GetTopCardPos(x, y);
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card->Draw(dc, x, y);
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}
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// Can the card leave this pile.
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// If it is a member of the pile then the answer is yes.
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// Derived classes may override this behaviour to incorporate
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// the rules of the game
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bool Pile::CanCardLeave(Card* card)
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{
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for (int i = 0; i <= m_topCard; i++)
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{
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if (card == m_cards[i]) return true;
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}
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return false;
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}
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// Calculate how far x, y is from top card in the pile
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// Returns the square of the distance
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int Pile::CalcDistance(int x, int y)
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{
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int cx, cy;
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GetTopCardPos(cx, cy);
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return ((cx - x) * (cx - x) + (cy - y) * (cy - y));
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}
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// Return the card at x, y. Check the top card first, then
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// work down the pile. If a card is found then return a pointer
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// to the card, otherwise return nullptr
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Card* Pile::GetCard(int x, int y)
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{
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int cardX;
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int cardY;
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GetTopCardPos(cardX, cardY);
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for (int i = m_topCard; i >= 0; i--)
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{
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if (x >= cardX && x <= cardX + Card::GetWidth() &&
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y >= cardY && y <= cardY + Card::GetHeight())
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{
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return m_cards[i];
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}
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cardX -= (int)Card::GetScale()*m_dx;
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cardY -= (int)Card::GetScale()*m_dy;
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}
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return 0;
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}
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// Return the position of the given card. If it is not a member of this pile
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// return the origin of the pile.
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void Pile::GetCardPos(Card* card, int& x, int& y)
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{
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x = m_x;
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y = m_y;
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for (int i = 0; i <= m_topCard; i++)
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{
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if (card == m_cards[i])
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{
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return;
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}
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x += (int)Card::GetScale()*m_dx;
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y += (int)Card::GetScale()*m_dy;
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}
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// card not found in pile, return origin of pile
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x = m_x;
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y = m_y;
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}
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bool Pile::Overlap(int x, int y)
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{
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int cardX;
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int cardY;
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GetTopCardPos(cardX, cardY);
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if (x >= cardX - Card::GetWidth() && x <= cardX + Card::GetWidth() &&
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y >= cardY - Card::GetHeight() && y <= cardY + Card::GetHeight())
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{
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return true;
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}
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return false;
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}
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