CH4-2.rar_2d 游戏_Visual C++游戏设计_Visual c++ 游戏设计_游戏 动作

// 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) float x=0,y=0,vx=21,vy=21,ax=0.03f,ay=0.03f; 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); GetClientRect(&rect); mdc = new CDC; mdc->CreateCompatibleDC(&dc); ball = new CBitmap; ball->m_hObject = (HBITMAP)::LoadImage(NULL,"ball.bmp",IMAGE_BITMAP,81,81,LR_LOADFROMFILE); mdc->SelectObject(ball); } canvasFrame::~canvasFrame() { delete mdc; delete ball; } 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((int)x,(int)y,81,81,mdc,0,0,SRCCOPY); if(vx>0) { vx-=ax; if(vx<0) vx=0; } else { vx+=ax; if(vx>0) vx=0; } if(vy>0) { vy-=ay; if(vy<0) vy=0; } else { vy+=ay; if(vy>0) vy=0; } x += vx; y += vy; if(vx==0 && vy==0) KillTimer(nIDEvent); if(y+60 > rect.bottom) { vy = -vy; y = rect.bottom -60.0f; } if(x+60 > rect.right) { vx = -vx; x = rect.right -60.0f; } if(y < -21) { vy = -vy; y = -21; } if(x < -21) { vx = -vx; x =- 21; } } int canvasFrame::OnCreate(LPCREATESTRUCT lpCreateStruct) { if (CFrameWnd::OnCreate(lpCreateStruct) == -1) return -1; SetTimer(1,0,NULL); return 0; }