canvasframe.cpp

《Visual C++游戏设计入门》的配套代码

// canvasFrame.cpp : implementation file
//

#include "stdafx.h"
#include "canvasr.h"
#include "canvasFrame.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// canvasFrame
IMPLEMENT_DYNCREATE(canvasFrame, CFrameWnd)
int x=0,vx=26,i,xlast,t=0;
canvasFrame::canvasFrame()
{
	Create(NULL,"绘图窗口",WS_OVERLAPPEDWINDOW,CRect(0,0,800,300));
	CClientDC dc(this);
	int width = dc.GetDeviceCaps(HORZRES);
	int height = dc.GetDeviceCaps(VERTRES);
	GetWindowRect( &rect );
	width = ( width - ( rect.right - rect.left ))/2 ;
	height = (height - (rect.bottom - rect.top ))/2 ;
	MoveWindow( width , height , (rect.right - rect.left ) , (rect.bottom - rect.top ) ,true);
	GetClientRect(&rect);
	mdc = new CDC;
	mdc->CreateCompatibleDC(&dc);
	char filename[7];
	for(i=0;i<=11;i++)
	{
		sprintf( filename , "images//b%d.bmp" , i ); //取得图文件文件名字符串
		bitmap[i] = new CBitmap ;      //建立各个 CBitmap 对象
		bitmap[i]->m_hObject = (HBITMAP)::LoadImage(NULL, filename ,IMAGE_BITMAP,100,100,LR_LOADFROMFILE); //载入图文件
	}
	mdc->SelectObject(bitmap[0]);  //选择第一张图
	i=0;
}

canvasFrame::~canvasFrame()
{
	delete mdc;
	for(i=0;i<=11;i++)
		delete bitmap[i];
}


BEGIN_MESSAGE_MAP(canvasFrame, CFrameWnd)
	//{{AFX_MSG_MAP(canvasFrame)
	ON_WM_TIMER()
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// canvasFrame message handlers

void canvasFrame::OnTimer(UINT nIDEvent) 
{
	CFrameWnd::OnTimer(nIDEvent);
	CClientDC dc(this);
	dc.BitBlt(xlast,170,100,100,mdc,0,0,WHITENESS);
	dc.BitBlt(x,170,100,100,mdc,0,0,SRCCOPY);
	i++ ;                   //累加图号
	if( i == 12 )           //判断是否已超过最大图号
		i=0;
	mdc->SelectObject( bitmap[i] ); //选择显示图案
	xlast = x;              //记录贴图的 X 坐标
	x+=vx;
	if(t<200)
		t=t+10;
	if(t>=200 && t<=700)
		t=t+150;
	if(t>700 && t<=900)
		t=t+400;
	if(t<900)
		SetTimer(1,t,NULL);  //重设定时器的间隔
	else
		KillTimer(nIDEvent);
}

int canvasFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	SetTimer(1,t,NULL);
	// TODO: Add your specialized creation code here
	return 0;
}