add enemy

PlaneWar-MFC-master/PlaneWar/CEnemy.cpp

+#include "stdafx.h"
+#include "CEnemy.h"
+#include "resource.h"
+
+
+//敌机的高度
+#define ENEMY_HEIGHT 90
+//敌机的宽度
+#define ENEMY_WIDTH 120
+//敌机飞行速度
+#define ENEMY_SPEED 3
+//敌机血量
+#define ENEMY_HP 2
+
+
+//静态图像列表
+CImageList CEnemy::enemyImages;
+
+CEnemy::CEnemy(int window_width, int window_height) : hp(ENEMY_HP), speed(ENEMY_SPEED) {
+	mPoint.x = rand() % window_width;
+	mPoint.y = 0;
+}
+
+int CEnemy::getHp() const {
+	return hp;
+}
+
+bool CEnemy::isAlive() const {
+	return hp > 0;
+}
+
+void CEnemy::setHp(int _hp) {
+	hp = _hp;
+}
+
+//绘制当前敌机位置
+BOOL CEnemy::Draw(CDC* pDC, int passNum, BOOL bPause)
+{
+	if (bPause == 0) {
+		int index = passNum % 5;
+		//敌机位置随机变化,只改变纵坐标，随机数为了让敌机不匀速飞行
+		//+ rand() % 10
+		mPoint.y += speed;
+		enemyImages.Draw(pDC, index, mPoint, ILD_TRANSPARENT);
+		return TRUE;
+	}
+	else return FALSE;
+}
+
+BOOL CEnemy::Draw(CDC* pDC, BOOL bPause)
+{
+	if (bPause == 0) {
+		//敌机位置随机变化,只改变纵坐标，随机数为了让敌机不匀速飞行
+		//+ rand() % 10
+		mPoint.y += speed;
+		enemyImages.Draw(pDC, 0, mPoint, ILD_TRANSPARENT);
+		return TRUE;
+	}
+	else return FALSE;
+}
+
+//加载图像
+BOOL CEnemy::LoadImage()
+{
+	//加载游戏对象的图标对象
+	CBitmap enemyBmp;
+	if (!enemyBmp.LoadBitmapW(IDB_BMP_ENEMYDOWN))
+		return FALSE;
+	//创建CImageList对象
+	if (!enemyImages.Create(ENEMY_WIDTH, ENEMY_HEIGHT, ILC_COLOR24 | ILC_MASK, 5, 0))//nInitial初始个数
+		return FALSE;//cx,cy 图片的宽度
+	//图像链表中加入对象对应的图标对象，之后直接通过该链表访问图标对象
+	enemyImages.Add(&enemyBmp, RGB(0, 0, 0));
+
+	return TRUE;
+}
+
+CRect CEnemy::GetRect()
+{
+	return CRect(mPoint, CPoint(mPoint.x + ENEMY_HEIGHT, mPoint.y + ENEMY_HEIGHT));
+}
\ No newline at end of file

PlaneWar-MFC-master/PlaneWar/CEnemy.h

+#pragma once
+#include "GameObject.h"
+class CEnemy : public CGameObject
+{
+private:
+	int hp;
+	int speed;
+
+protected:
+	static CImageList enemyImages; //敌机图像
+
+public:
+	CEnemy(int window_width, int window_heigh);
+	int getHp() const;
+	bool isAlive() const;
+	void setHp(int _hp);
+
+	CRect GetRect();
+
+	//绘制
+	BOOL Draw(CDC* pDC, BOOL bPause);
+	BOOL Draw(CDC* pDC, int passNum, BOOL bPause);
+
+	//加载敌机图像
+	static BOOL LoadImage();
+};
+

PlaneWar-MFC-master/PlaneWar/PlaneWar.vcxproj

@@ -190,6 +190,7 @@
     <Text Include="ReadMe.txt" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="CEnemy.h" />
     <ClInclude Include="ClassView.h" />
     <ClInclude Include="FileView.h" />
     <ClInclude Include="GameObject.h" />
@@ -209,6 +210,7 @@
     <ClInclude Include="ViewTree.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="CEnemy.cpp" />
     <ClCompile Include="ClassView.cpp" />
     <ClCompile Include="FileView.cpp" />
     <ClCompile Include="GameObject.cpp" />

PlaneWar-MFC-master/PlaneWar/PlaneWar.vcxproj.filters

@@ -69,6 +69,9 @@
     <ClInclude Include="RestartDialog.h">
       <Filter>头文件</Filter>
     </ClInclude>
+    <ClInclude Include="CEnemy.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="PlaneWar.cpp">
@@ -116,6 +119,9 @@
     <ClCompile Include="RestartDialog.cpp">
       <Filter>源文件</Filter>
     </ClCompile>
+    <ClCompile Include="CEnemy.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="PlaneWar.rc">

PlaneWar-MFC-master/PlaneWar/PlaneWarView.cpp

@@ -15,6 +15,7 @@
 
 #include "PlaneWarDoc.h"
 #include "PlaneWarView.h"
+#include "CEnemy.h"
 
 #ifdef _DEBUG
 #define new DEBUG_NEW
@@ -150,6 +151,7 @@ int CPlaneWarView::OnCreate(LPCREATESTRUCT lpCreateStruct)
 	//加载游戏对象图片
 	CMyPlane::LoadImage();
 	CMyPlane::LoadImageProtect();
+	CEnemy::LoadImage();
 	//加载标题图片
 	CBitmap startbmp;
 	startbmp.LoadBitmapW(IDB_BMP_TITLE);
@@ -266,19 +268,48 @@ void CPlaneWarView::OnTimer(UINT_PTR nIDEvent)
 		if (myplane != NULL) {
 			myplane->Draw(&cdc, FALSE, isProtect);
 		}
-	}
+		//随机添加敌机,敌机随机发射炸弹，此时敌机速度与数量和关卡有关
+		if (myplane != NULL && isPause == 0 && isBoss == FALSE)
+		{
+			//敌机产生定时器触发
+			if (nIDEvent == 2) {
+				CEnemy* enemy = new CEnemy(rect.right, rect.bottom);
+				enemyList.AddTail(enemy);//随机产生敌机
+			}
+		}
 
-	//将二级缓冲cdc中的数据推送到一级级缓冲pDC中，即输出到屏幕中
-	pDC->BitBlt(0, 0, rect.Width(), rect.Height(), &cdc, 0, 0, SRCCOPY);
-	//释放二级cdc
-	cdc.DeleteDC();
-	//释放缓冲位图
-	cacheBitmap->DeleteObject();
-	//释放一级pDC
-	ReleaseDC(pDC);
-	CView::OnTimer(nIDEvent);
-}
+		//超出边界的敌机进行销毁
+		POSITION stPos = NULL, tPos = NULL;
+		stPos = enemyList.GetHeadPosition();
+		while (stPos != NULL)
+		{
+			tPos = stPos;
+			CEnemy* enemy = (CEnemy*)enemyList.GetNext(stPos);
+			//判断敌机是否出界
+			if (enemy->GetPoint().x<rect.left || enemy->GetPoint().x>rect.right
+				|| enemy->GetPoint().y<rect.top || enemy->GetPoint().y>rect.bottom)
+			{
+				enemyList.RemoveAt(tPos);
+				delete enemy;
+			}
+			else
+			{
+				//没出界，绘制
+				enemy->Draw(&cdc, passNum, FALSE);
+			}
+		}
 
+		//将二级缓冲cdc中的数据推送到一级级缓冲pDC中，即输出到屏幕中
+		pDC->BitBlt(0, 0, rect.Width(), rect.Height(), &cdc, 0, 0, SRCCOPY);
+		//释放二级cdc
+		cdc.DeleteDC();
+		//释放缓冲位图
+		cacheBitmap->DeleteObject();
+		//释放一级pDC
+		ReleaseDC(pDC);
+		CView::OnTimer(nIDEvent);
+	}
+}
 //键盘按下监听
 void CPlaneWarView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
 {