void CSpaceInvadersAppView::DrawAliens(CWindowGc& aGc) const
{
for ( TInt i = 0 ; i < iTotalAliens ; i++ )
{
if ( iAlienArray[i] )
{
TPoint shipPoint(iAlienArray[i]->X(), iAlienArray[i]->Y());
CFbsBitmap* iBitmapShip;
if ( i < 6 )
{
iBitmapShip = iBitmapAlien1;
}
else if ( i < 12 )
{
iBitmapShip = iBitmapAlien2;
}
else
{
iBitmapShip = iBitmapAlien3;
}
aGc.BitBlt( shipPoint, iBitmapShip );
if ( iAlienArray[i]->HasFired() )
{
TPoint shotPoint(iAlienArray[i]->Shot()->X(),
iAlienArray[i]->Shot()->Y());
aGc.BitBlt( shotPoint, iBitmapShot );
}
}
}
}
void CSpaceInvadersAppView::DrawShip(CWindowGc& aGc) const
{
// Draw the image in the desired position
TPoint shipPoint(iShip->X(), iShip->Y());
aGc.BitBlt( shipPoint, iBitmapShip);
if ( iShip->HasFired() )
{
TPoint shotPoint(iShip->Shot()->X(), iShip->Shot()->Y());
aGc.BitBlt( shotPoint, iBitmapShot );
}
}
int main() {
typedef std::deque<Invader> InvaderList;
typedef std::deque<Shot> ShotList;
cv::VideoCapture cap( DEFAULT_DEVICE );
if(!cap.isOpened()) {
std::cerr << "Error opening VideoCapture!" << std::endl;
return -1;
}
cap.set(CV_CAP_PROP_FRAME_WIDTH, 1024);
cap.set(CV_CAP_PROP_FRAME_HEIGHT, 768);
cv::namedWindow("SpaceInvaders", CV_WINDOW_AUTOSIZE);
cv::Mat cameraImage;
cap >> cameraImage;
const cv::Size CameraImageSize( cameraImage.size() );
for (int key = -1; ' ' != key; key = cv::waitKey(WAIT_DELAY_MS)) {
cap >> cameraImage;
cv::flip(cameraImage, cameraImage, FLIPPING_AROUND_Y_AXIS);
cv::putText(cameraImage, "Press space to play!", cv::Point(30,80), cv::FONT_HERSHEY_SIMPLEX, 2, cv::Scalar::all(255), 2, 8);
cv::resize(cameraImage, cameraImage, CameraImageSize * 2);
cv::imshow("SpaceInvaders", cameraImage);
}
const GameImage playerImage( PLAYER_PNG );
const GameImage invaderImage( INVADER_PNG );
const int YPlayerShot = CameraImageSize.height - playerImage.size().height;
const int YGameOver = YPlayerShot - invaderImage.size().height;
Player player(playerImage, CameraImageSize, SHOT_LINE_PIX);
PlayerPosition playerPosition(player, HAARCASCADE_XML, CameraImageSize);
Shot playerShot;
bool gameOver = false;
InvaderList invaders;
std::generate_n(std::back_inserter(invaders), MAX_INVADERS, Invader::Factory(invaderImage, CameraImageSize, 5));
ShotList shots;
cv::RNG rng(uint64(std::time(0)));
for (int key = -1; 'q' != key; key = cv::waitKey(WAIT_DELAY_MS)) {
cap >> cameraImage;
cv::flip(cameraImage, cameraImage, FLIPPING_AROUND_Y_AXIS);
if (!gameOver) {
playerPosition.update(cameraImage);
playerShot.update();
std::for_each(invaders.begin(), invaders.end(), GraphicUpdate);
std::for_each(shots.begin(), shots.end(), GraphicUpdate);
if (playerShot.isValid()) {
const InvaderList::iterator iInvaderEnd = std::remove_if(invaders.begin(),invaders.end(), GraphicColision(playerShot.rect()));
if (iInvaderEnd != invaders.end()) {
invaders.erase(iInvaderEnd, invaders.end());
playerShot = Shot();
}
}
if (!shots.empty()) {
const ShotList::iterator iShotsEnd = std::remove_if(shots.begin(), shots.end(), isInvalidShot);
if (iShotsEnd != shots.end()) {
shots.erase(iShotsEnd, shots.end());
}
}
for (InvaderList::const_iterator iInvader = invaders.begin(); iInvader != invaders.end() && !gameOver; ++iInvader) {
const cv::Rect irect( iInvader->rect() );
if ((rng.uniform(0.0,1.0) < 0.05) && (shots.size() < MAX_INVADERS)) {
cv::Point shotPos(irect.x + (irect.width / 2), irect.y + irect.height);
shots.push_back( Shot(shotPos, SHOT_SPEED, cv::Scalar(100,50,100), CameraImageSize) );
}
if (irect.y >= YGameOver) {
gameOver = true;
}
}
if (!playerShot.isValid() && player.isShooting()) {
cv::Point shotPoint( player.facePosition().x, YPlayerShot );
playerShot = Shot(shotPoint, -SHOT_SPEED, cv::Scalar(100,170,10), CameraImageSize);
}
for (ShotList::iterator iShot(shots.begin()); iShot != shots.end() && !gameOver; ++iShot) {
if (iShot->isValid() && checkColision(iShot->rect(),player.rect())) {
gameOver = true;
}
}
}
std::for_each(invaders.begin(), invaders.end(), GraphicPaint(cameraImage));
std::for_each(shots.begin(), shots.end(), GraphicPaint(cameraImage));
player.paint(cameraImage);
playerShot.paint(cameraImage);
if (invaders.empty()) {
cv::putText(cameraImage, "Winner!", cv::Point(30,80), cv::FONT_HERSHEY_SIMPLEX, 3, cv::Scalar::all(255), 2, 8);
} else if (gameOver) {
cv::putText(cameraImage, "Game Over!", cv::Point(30,80), cv::FONT_HERSHEY_SIMPLEX, 3, cv::Scalar::all(255), 2, 8);
}
cv::resize(cameraImage, cameraImage, CameraImageSize * 2);
cv::imshow("SpaceInvaders", cameraImage);
}
return 0;
}