private void MoveApple(Apple theApple)
{
theApple.Position.Y += mVelocityY;
if (theApple.Position.Y > graphics.GraphicsDevice.Viewport.Height && theApple.Visible == true)
{
theApple.Visible = false;
theApple.isEated = true;
existApple = false;
if (score >= 1000) //第二种通关的可能就是score超过1000
{
MediaPlayer.Pause();
cheer.Play();
mCurrentState = State.Success;
mExitCountDown = 10;
}
}
}
private int CheckAppleCollision(Apple theApple)
{
// 分别计算并使用封闭（包裹）盒给障碍物和车
BoundingBox aAppleBox = new BoundingBox(new Vector3(theApple.Position.X, theApple.Position.Y, 0), new Vector3(theApple.Position.X + (mApple.Width * .4f), theApple.Position.Y + ((mApple.Height - 50) * .4f), 0));
BoundingBox aCarBox = new BoundingBox(new Vector3(mCarPosition.X, mCarPosition.Y, 0), new Vector3(mCarPosition.X + (mCar.Width * .2f), mCarPosition.Y + (mCar.Height * .2f), 0));
if (aAppleBox.Intersects(aCarBox) == true && theApple.isEated == false)
{
get.Play();
MoveApple(theApple);
theApple.Visible = false;
theApple.isEated = true;
existApple = false;
score += 15;
if(CarSelect == 1)if (mVelocityY >= 14) mVelocityY--;
if (CarSelect == 2) if (mVelocityY >= 9) mVelocityY--;
return 1;
}
return 0;
}
private void MoveApple(Apple theApple)
{
theApple.Position.Y += mVelocityY;
if (theApple.Position.Y > graphics.GraphicsDevice.Viewport.Height && theApple.Visible == true)
{
theApple.Visible = false;
theApple.isEated = true;
existApple = false;
if (score >= 1000) //第二种通关的可能就是score超过1000
{
MediaPlayer.Pause();
cheer.Play();
mCurrentState = State.Success;
mExitCountDown = 10;
}
}
}
private void AddApple()
{
int aRoadPosition = mRandom.Next(1, 8);
int aPosition = 85 - mRandom.Next(1, 11); ;
if (aRoadPosition == 2)
{
aPosition = 120+mRandom.Next(1,11);
}
else if (aRoadPosition == 3)
{
aPosition = 240 - mRandom.Next(1, 11);
}
else if (aRoadPosition == 4)
{
aPosition = 280 + mRandom.Next(1, 11);
}
else if (aRoadPosition == 5)
{
aPosition = 410 - mRandom.Next(1, 11);
}
else if (aRoadPosition == 6)
{
aPosition = 450 + mRandom.Next(1, 11);
}
else if (aRoadPosition == 7)
{
aPosition = 560 - mRandom.Next(1, 11);
}
bool aAddNewApple = true;
foreach (Apple aApple in mApples)
{
if (aApple.Visible == false)
{
aAddNewApple = false;
aApple.Visible = true;
aApple.isEated = false;
aApple.Position = new Vector2(aPosition, -mApple.Height);
break;
}
}
if (aAddNewApple == true)
{
//Add a Apple to the left side of the Road
Apple aApple = new Apple();
aApple.Position = new Vector2(aPosition, -mApple.Height);
mApples.Add(aApple);
}
}