myview.cpp

VC面向对象的学习教程

// MyView.cpp : implementation of the CMyView class
//

#include "stdafx.h"
#include "My.h"

#include "MyDoc.h"
#include "MyView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyView

IMPLEMENT_DYNCREATE(CMyView, CView)

BEGIN_MESSAGE_MAP(CMyView, CView)
	//{{AFX_MSG_MAP(CMyView)
	ON_WM_KEYDOWN()
	ON_WM_TIMER()
	ON_COMMAND(ID_BEGIN, OnBegin)
	ON_COMMAND(ID_END, OnEnd)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyView construction/destruction

CMyView::CMyView()
{
	// TODO: add construction code here
	m_pointMoutain[0] = CPoint(300, 400);
	m_pointMoutain[1] = CPoint(400, 300);
	m_pointMoutain[2] = CPoint(500, 350);
	m_pointMoutain[3] = CPoint(600, 250);
	m_pointMoutain[4] = CPoint(800, 400);

}

CMyView::~CMyView()
{
}

BOOL CMyView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMyView drawing

void CMyView::OnDraw(CDC* pDC)
{
	CMyDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	CDC MemDC;
	MemDC.CreateCompatibleDC(NULL);
	CRect rect;
	GetClientRect(&rect);
	DrawFields(pDC, rect);				// 画战场
	m_Plane.ShowPlane(pDC, &MemDC, rect);	// 画对方飞机
	m_Bomb.ShowBomb(pDC, &MemDC, rect);		// 画炸弹
	m_Tank.ShowTank(pDC, &MemDC, rect);	// 画己方防空导弹车
	m_Stone.ShowStone(pDC, &MemDC, rect);	// 画导弹 
}

/////////////////////////////////////////////////////////////////////////////
// CMyView printing

BOOL CMyView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMyView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMyView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMyView diagnostics

#ifdef _DEBUG
void CMyView::AssertValid() const
{
	CView::AssertValid();
}

void CMyView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CMyDoc* CMyView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyDoc)));
	return (CMyDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMyView message handlers

void CMyView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
	if(nChar == VK_LEFT)		// 使用 < 键左移高炮
	{
		InvalidateRect(m_Tank.GetTank());
		m_Tank.ChangePos(0);
		InvalidateRect(m_Tank.GetTank(), FALSE);
	}
	else if(nChar == VK_RIGHT)	// 使用 > 键右移高炮
	{
		InvalidateRect(m_Tank.GetTank());
		m_Tank.ChangePos(1);
		InvalidateRect(m_Tank.GetTank());
	}
	else if(nChar == 32 && m_Stone.HaveStone()) // 使用空格键发炮
		m_Stone.Shot(m_Tank.GetTank().left);		
		
	CView::OnKeyDown(nChar, nRepCnt, nFlags);
}

void CMyView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	InvalidateRect(m_Plane.GetPlane());	// 修改飞机位置
	m_Plane.ChangePos();
	InvalidateRect(m_Plane.GetPlane(), FALSE);
	InvalidateRect(m_Bomb.GetBomb());	// 修改炸弹位置
	m_Bomb.ChangePos(m_Plane.GetPlane().left);
	InvalidateRect(m_Bomb.GetBomb(), FALSE);
	if(!m_Stone.HaveStone())		// 修改炮弹位置
	{
		CRect rect = m_Stone.GetStone();
		if(rect.top < 3)
			m_Stone.Refill();
		else
		{
			InvalidateRect(rect);
			m_Stone.ChangePos();
		}
		InvalidateRect(m_Stone.GetStone(), FALSE);
	}
	// 判断射击效果
	if(!m_Stone.HaveStone() && ShotOn(m_Plane.GetPlane(), m_Stone.GetStone()))
	{
		KillTimer(1);
		MessageBox("你击中我了!!!");
	}
	else if(ShotOn(m_Tank.GetTank(), m_Bomb.GetBomb()))
	{
		KillTimer(1);
		MessageBox("我砸到你了!!!");
	}
	
	CView::OnTimer(nIDEvent);
}
void CMyView::DrawFields(CDC *pDC, CRect Client)
{
	CBrush *pOldBrush, brushSky, brushGrass, brushMoutain;
	CRect rect(Client);
	brushSky.CreateSolidBrush(RGB(127, 200, 255));  	// 画天空
	pOldBrush = pDC->SelectObject(&brushSky);
	pDC->Rectangle(rect);
	pDC->SelectObject(pOldBrush);
	brushGrass.CreateSolidBrush(RGB(0, 255, 0));		// 画草地
	pOldBrush = pDC->SelectObject(&brushGrass);
	rect.top = 400;
	pDC->Rectangle(rect);
	pDC->SelectObject(pOldBrush);
	brushMoutain.CreateSolidBrush(RGB(125, 50, 0));	// 画大山
	pOldBrush = pDC->SelectObject(&brushMoutain);
	pDC->Polygon(m_pointMoutain, 5);
	pDC->SelectObject(pOldBrush);

}
BOOL CMyView::ShotOn(CRect &body1, CRect &body2)
{
	return body1.PtInRect(body2.TopLeft());
}

void CMyView::OnBegin() 
{
	// TODO: Add your command handler code here
	m_Bomb.ResetPos();
	m_Plane.ResetPos();
	m_Tank.ResetPos();
	m_Stone.ResetPos();
	Invalidate();
	SetTimer(1, 100, NULL);	
	
}

void CMyView::OnEnd() 
{
	// TODO: Add your command handler code here
	KillTimer(1);
	PostMessage(WM_QUIT);	
	
}