canvasframe.cpp

《Visual C++游戏设计入门》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,y=0,i,d,c,xp;
canvasFrame::canvasFrame()
{
	Create(NULL,"绘图窗口");
	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);
	mdc = new CDC;
	mdc1 = new CDC;
	mdc->CreateCompatibleDC(&dc);
	mdc1->CreateCompatibleDC(&dc);
	tempbmp = new CBitmap;
	bgbmp = new CBitmap;
	tempbmp->CreateCompatibleBitmap(&dc,rect.right,rect.bottom);
	char str[7];
	for(i=0;i<4;i++)                //加载屏蔽与人物图
	{
		sprintf(str,"m%d.bmp",i);
		m[i] = new CBitmap;
		m[i]->m_hObject = (HBITMAP)::LoadImage(NULL,str,IMAGE_BITMAP,440,74,LR_LOADFROMFILE);
		sprintf(str,"p%d.bmp",i);
		p[i] = new CBitmap;
		p[i]->m_hObject = (HBITMAP)::LoadImage(NULL,str,IMAGE_BITMAP,440,74,LR_LOADFROMFILE);
	}
	bgbmp->m_hObject = (HBITMAP)::LoadImage(NULL,"bground.bmp",IMAGE_BITMAP,rect.right,rect.bottom,LR_LOADFROMFILE);
	mdc->SelectObject(tempbmp);
}

canvasFrame::~canvasFrame()
{
	delete mdc;                
	delete mdc1;
	for(i=0;i<=3;i++)
		delete p[i]; 
	for(i=0;i<=3;i++)
		delete m[i];
	delete tempbmp;
	delete bgbmp;
}


BEGIN_MESSAGE_MAP(canvasFrame, CFrameWnd)
	//{{AFX_MSG_MAP(canvasFrame)
	ON_WM_PAINT()
	ON_WM_KEYDOWN()
	ON_WM_CHAR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// canvasFrame message handlers
void canvasFrame::OnPaint()
{
	CPaintDC dc(this);  //建立响应WM_PAINT信息的DC
}

void canvasFrame::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	CClientDC dc(this);
	mdc1->SelectObject(bgbmp);
	mdc->BitBlt(0,0,rect.right,rect.bottom,mdc1,0,0,SRCCOPY);
	if(nChar==VK_UP)              //按下"上"键
	{
		mdc1->SelectObject(m[0]);
		y-=20;
		if(d==0)         //判断上一次是否按下"上"键
		{
			c++;         //下一张图
			if(c==8)     
				c=0;
		}
		else
			c=0;         //从第一张开始
		d=0;
		xp=55*c;
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCAND);
		mdc1->SelectObject(p[0]);
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCPAINT);
	}
	if(nChar==VK_DOWN)           //按下"下"键
	{
		mdc1->SelectObject(m[3]);
		y+=20;
		if(d==3)        //判断上一次是否按下"下"键
		{
			c++;			//下一张图
			if(c==8)
				c=0;
		}
		else
			c=0;			 //从第一张开始
		d=3;
		xp=55*c;
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCAND);
		mdc1->SelectObject(p[3]);
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCPAINT);
	}
	if(nChar==VK_LEFT)             //按下"左"键
	{
		mdc1->SelectObject(m[2]);
		x-=20;
		if(d==2)          //判断上一次是否按下"左"键
		{
			c++;			//下一张图
			if(c==8)
				c=0;
		}
		else
			c=0;			 //从第一张开始
		d=2;
		xp=55*c;
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCAND);
		mdc1->SelectObject(p[2]);
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCPAINT);
	}
	if(nChar==VK_RIGHT)            //按下"右"键
	{
		mdc1->SelectObject(m[1]);
		x+=20;
		if(d==1)          //判断上一次是否按下"右"键
		{
			c++;
			if(c==8)
				c=0;
		}
		else
			c=0;		//从第一张开始
		d=1;
		xp=55*c;            
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCAND);
		mdc1->SelectObject(p[1]);
		mdc->BitBlt(x,y,55,74,mdc1,xp,0,SRCPAINT);
	}
	if( nChar== VK_ESCAPE)     
		PostMessage(WM_CLOSE );  //传送WM_CLOSE信息
	dc.BitBlt(0,0,rect.right,rect.bottom,mdc,0,0,SRCCOPY);
	CFrameWnd::OnKeyDown(nChar, nRepCnt, nFlags);
}



void canvasFrame::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	
	CFrameWnd::OnChar(nChar, nRepCnt, nFlags);
}