// 游戏控制的一个主要流程。
// 当计时器发生时进行的处理逻辑。
void OnTimer(HWND hwnd)
{
// 计时器到时以后，蛇移动一步。
// 根据以后以后的状态，进行后续处理。
switch (SnakeMove())
{
// 如果蛇已经死了
case SNAKE_DEAD:
// 首先关闭计时器，避免在计时器的驱动下再次调用本函数
KillTimer(hwnd, TIMER_ID);
// 然后通知玩家，Game Over了，退出进程。
MessageBox(0, "Game Over", "Game Over", 0);
ExitProcess(0);
break;
// 如果蛇吃到了食物
case SNAKE_EATEN_FOOD:
// 计分；
score++;
// 创建新的食物。食物是一个全局唯一变量。
CreateFood();
// 蛇进行生长，然后判断蛇生长以后的状态，进行后续处理。
switch (SnakeGorwup())
{
// 玩家赢了，停止计时器。
case SNAKE_COMPLETE:
KillTimer(hwnd, TIMER_ID);
// 通知玩家，退出进程，结束游戏。
MessageBox(0, "You Win!", "You Win", 0);
ExitProcess(0);
break;
// 发生错误，停止计时器，并退出。
case SNAKE_ERROR:
KillTimer(hwnd, TIMER_ID);
MessageBox(hwnd, "Error!!", "Error!1", MB_OK);
ExitProcess(0);
break;
// 没有结束，也没有错误，正常吃到食物。
case SNAKE_GROWUP:
// 判断计分，是否升级。
if (IS_SPEEDUP(score))
{
level++;
SpeedUp(hwnd);
}
break;
} //switch (SnakeGorwup()) 结束
break;
case SNAKE_MOVED:
break;
}
return;
}
//改变方向
void CSnakeGame::ChangeDirection(int iDirection)
{
//如果是相同方向或者游戏不是运行中状态，则返回
if (m_enGameState != GAMESTATE_RUNNING || m_iSnakeDirection == iDirection)
{
return;
}
//按钮音效
PLAY_EFFECT(EFFECT_CHANGE2);
//设置方向
int nOldDirection = m_iSnakeDirection;
m_iSnakeDirection = iDirection;
//如果是反方向
if (iDirection == OPPSITE_DIRECTION[nOldDirection])
{
//转换
int iNodeCount = m_mapSnakeNodes.size();
for (int i = 0; i < iNodeCount / 2; ++i)
{
POSITION stTempPos = m_mapSnakeNodes[i];
m_mapSnakeNodes[i] = m_mapSnakeNodes[iNodeCount - 1 - i];
m_mapSnakeNodes[iNodeCount - 1 - i] = stTempPos;
}
//获取下一个位置
POSITION stHeaderPos = m_mapSnakeNodes[0];
GetNextPos(stHeaderPos);
//是否可以按照反方向移动，不能则恢复之前的方向
if (CheckGameOver(stHeaderPos))
{
m_iSnakeDirection = nOldDirection;
}
}
//移动
SnakeMove();
//重置时间
m_fWaitRefreshTime = 0;
}
LRESULT CALLBACK windProc(HWND hwnd,UINT Message,WPARAM wParam,LPARAM lParam)
{
int i;
static HDC hdc;
static HDC hdcDes;
static HBITMAP hBitMap[BMPS];
static BITMAP bitMap;
static HINSTANCE hInstance;
static HBRUSH hBrush;
static RECT rectStartButton;//开始游戏按钮区
static PAINTSTRUCT ps;
static POINT mouseLocation;
static int x,y;
hBrush = CreateSolidBrush(RGB(255,255,255));
switch (Message)
{
case WM_CREATE:
hInstance = ((LPCREATESTRUCT)lParam)->hInstance;
hBitMap[0] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_BRICK));//墙
hBitMap[1] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_NUMERS));//分数
hBitMap[2] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_SCORE));//得分字样
hBitMap[3] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_GAMELEVEL));//游戏等级字样
hBitMap[4] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_ANIMATE));//开机动画的贴图
hBitMap[5] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_GAMESTART));//游戏开始按钮
hBitMap[6] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_WORDSNAKE));//snake四个英文字母
hBitMap[7] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_SNAKE));//蛇的身体以及食物
hBitMap[8] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_STARTCHANGE));//鼠标放在开始按钮上时改变颜色
hBitMap[9] = LoadBitmap(hInstance,MAKEINTRESOURCE(IDB_GAMEOVER));//GAMEOVER四个字母
srand((unsigned)time(NULL));
SetClientRect(hwnd,704,576);
return 0;
case WM_SIZE:
GetClientRect(hwnd,&rectClient);
rectSnake.left = rectClient.left+32;
rectSnake.top = rectClient.top+32;
rectSnake.bottom = rectClient.bottom-32;
rectSnake.right = rectClient.left+17*32;
rectStartButton.left = rectSnake.left+150;
rectStartButton.right = rectStartButton.left+236;
rectStartButton.top = rectSnake.bottom-100;
rectStartButton.bottom = rectStartButton.top+79;
return 0;
case WM_KEYDOWN:
switch (wParam)
{
case VK_SPACE:
Pause = !Pause;
if(Pause)
{
if(GameState != 1)
{
GameLevel = 1;
GameState = 1;
SnakeLength = 1;
GameSpeed = 200;
Snake[0].x = rectSnake.left+160;//初始化蛇头坐标信息
Snake[0].y = rectSnake.left+160;
x = Snake[0].x;
y = Snake[0].y;
}
SetTimer(hwnd,GAMETIMER,GameSpeed,NULL);//设置时间计时器
}
else KillTimer(hwnd,GAMETIMER);
break;
case VK_ESCAPE:
int result;
result = MessageBox(NULL,TEXT("你确定要退出游戏吗?"),TEXT("Warning!"),MB_YESNO|MB_ICONWARNING);
switch (result)
{
case IDYES:
DestroyWindow(hwnd);
break;
case IDNO:
break;
default: break;
}
break;
case VK_LEFT:
if(MoveDirection != 2)
MoveDirection = 1;
return 0;
case VK_RIGHT:
if(MoveDirection != 1)
MoveDirection = 2;
return 0;
case VK_UP:
if(MoveDirection != 4)
MoveDirection = 3;
return 0;
case VK_DOWN:
if(MoveDirection != 3)
MoveDirection = 4;
return 0;
}
return 0;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case ID_ABOUT:
DialogBox(hInstance,MAKEINTRESOURCE(IDD_DIABOUT),NULL,AboutProc);
break;
case ID_GAMESTART://点击菜单中的开始游戏按钮开始游戏
GameLevel = 1;
GameState = 1;
SnakeLength = 1;
GameSpeed = 200;
SetTimer(hwnd,GAMETIMER,GameSpeed,NULL);//设置时间计时器
Snake[0].x = rectSnake.left+160;//初始化蛇头坐标信息
Snake[0].y = rectSnake.left+160;
x = Snake[0].x;
y = Snake[0].y;
Pause = TRUE;
break;
case ID_GAMEQUIT:
KillTimer(hwnd,GAMETIMER);
ReleaseDC(hwnd,hdc);
DestroyWindow(hwnd);
exit(0);
break ;
}
return 0;
case WM_PAINT:
hdc = GetDC(hwnd);
hdc = BeginPaint(hwnd, &ps);
GetClientRect(hwnd,&rectClient);
hdcDes = CreateCompatibleDC(hdc);
Draw(hwnd,hdc,hBitMap,rectClient);
if(GameState == 0)
{
DrawAnimate(hwnd,hdc,hBitMap,rectSnake);//开机动画
}
else if(GameState == 1)
{
FillRect(hdc,&rectSnake,hBrush);
SelectObject(hdcDes,hBitMap[7]);
GetObject(hBitMap[7],sizeof(BITMAP),&bitMap);
if(!food.state)
BitBlt(hdc, food.foodLocation.x, food.foodLocation.y, bitMap.bmWidth, bitMap.bmHeight/2,hdcDes,0,16,SRCCOPY);
for(i =0;i<SnakeLength;i++)
{
BitBlt(hdc, Snake[i].x, Snake[i].y, bitMap.bmWidth, bitMap.bmHeight/2,hdcDes,0,0,SRCCOPY);
}
}
else if(GameState == 2)
{
DrawGameOver(hwnd,hdc,hBitMap,9);
KillTimer(hwnd,GAMETIMER);
}
DeleteDC(hdcDes);
EndPaint(hwnd,&ps);
Flag = FALSE;
return 0;
case WM_TIMER:
if(GameState == 1)
{
if(MoveDirection == 4)
{
x= x;
y = y +16;
}
else if(MoveDirection == 3)
{
x = x;
y = y - 16;
}
else if(MoveDirection == 2)
{
x = x+16;
y = y;
}
else if(MoveDirection == 1)
{
x = x -16;
y = y;
}
SnakeMove(x,y);
InvalidateRect(hwnd,&rectSnake,FALSE);
}
return 0;
case WM_LBUTTONDOWN:
mouseLocation.x = LOWORD(lParam);
mouseLocation.y = HIWORD(lParam);
if(GameState == 0)
{
if(PtInRect(&rectStartButton,mouseLocation))//点击开始游戏按钮开始游戏
{
GameLevel = 1;
GameState = 1;
SnakeLength = 1;
GameSpeed = 200;
SetTimer(hwnd,GAMETIMER,GameSpeed,NULL);//设置时间计时器
Snake[0].x = rectSnake.left+160;//初始化蛇头坐标信息
Snake[0].y = rectSnake.left+160;
x = Snake[0].x;
y = Snake[0].y;
Pause = TRUE;
}
}
return 0;
//按钮效果实现
case WM_MOUSEMOVE:
TRACKMOUSEEVENT TrackME;
mouseLocation.x = LOWORD(lParam);
mouseLocation.y = HIWORD(lParam);
TrackME.cbSize = sizeof(TrackME);
TrackME.dwFlags = TME_LEAVE | TME_HOVER;
TrackME.hwndTrack = hwnd;
TrackME.dwHoverTime = 1;//持续多长算HOVER
TrackMouseEvent(&TrackME);
if(GameState == 0)
{
if(PtInRect(&rectStartButton,mouseLocation))
{
FillRect(hdc,&rectStartButton,hBrush);
SetCursor(LoadCursor(NULL,IDC_HAND));
DrawButton(hwnd,hdc,hBitMap,rectStartButton,8);
}
else
{
FillRect(hdc,&rectStartButton,hBrush);
DrawButton(hwnd,hdc,hBitMap,rectStartButton,5);
}
}
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd,Message,wParam,lParam);
}
//更新
void CSnakeGame::Play(float dt)
{
if (m_enGameState == GAMESTATE_RUNNING)
{
//刷新标记
bool bNeedRefreshFlag = false;
m_fWaitRefreshTime += dt;
float fMaxTime = m_bImproveSpeed ? 50 : (SNAKE_MOVE_INTERVAL - 30 * m_iSpeed);
if (m_fWaitRefreshTime >= fMaxTime)
{
m_fWaitRefreshTime = 0;
SnakeMove();
bNeedRefreshFlag = true;
}
m_fAppleShowTime += dt;
if (m_fAppleShowTime >= APPLE_REFRESH_INTERVAL)
{
m_fAppleShowTime = 0;
m_bAppleState = !m_bAppleState;
bNeedRefreshFlag = true;
}
//是否需要刷新界面
if (!bNeedRefreshFlag)
{
return;
}
}
else if (m_enGameState == GAMESTATE_PASS)
{
//时间更新
m_fWaitRefreshTime += dt;
if (m_fWaitRefreshTime < GAMEPASS_REFRESH_INTERVAL)
{
return;
}
m_fWaitRefreshTime = 0;
if (m_iAddScoreCount < GAMEPASS_ADDCOUNT)
{
++m_iAddScoreCount;
m_iScore += GAMEPASS_ADDSCORE;
m_pGameScene->UpdateScore(m_iScore);
return;
}
else
{
//更新速度和等级
if (++m_iSpeed > 10)
{
m_iSpeed = 0;
if (++m_iLevel > 10)
{
m_iLevel = 0;
}
}
//更新显示
m_pGameScene->UpdateLevel(m_iLevel);
m_pGameScene->UpdateSpeed(m_iSpeed);
//重置数据
InitData();
}
}
else if (m_enGameState == GAMESTATE_OVER)
{
//时间更新
m_fWaitRefreshTime += dt;
if (m_fWaitRefreshTime < BOOM_REFRESH_INTERVAL)
{
return;
}
m_fWaitRefreshTime = 0;
if (m_iShowBoomCount < BOOM_SHOWCOUNT)
{
m_bShowBoom = !m_bShowBoom;
++m_iShowBoomCount;
}
else
{
//设置剩余生命
--m_iLife;
m_pGameScene->UpdateSmallBricks();
//检查是否有剩余生命，没有则返回游戏结束界面
if (m_iLife <= 0)
{
m_pGameScene->RunScene(SCENE_GAMEOVER);
return;
}
//重置数据
InitData();
}
}
m_pGameScene->UpdateBricks();
}
