private void DropNewItem(FallingItemType newItemType)
{
double dropWidth = Math.Min(this.mSceneRect.Right - this.mSceneRect.Left,
this.mSceneRect.Bottom - this.mSceneRect.Top);
double itemSize = 0.0;
if (newItemType == FallingItemType.Cherry ||
newItemType == FallingItemType.BigCherry ||
newItemType == FallingItemType.Spike) {
itemSize = this.GetItemImageSource(newItemType).PixelWidth / 2.5;
} else {
itemSize = this.GetItemImageSource(newItemType).PixelWidth / 8 / 2;
}
FallingItem fallingItem = new FallingItem() {
mCenterPosition = new Point(this.mRandom.NextDouble() * dropWidth +
(this.mSceneRect.Left + this.mSceneRect.Right - dropWidth) / 2.0,
this.mSceneRect.Top - itemSize),
mSize = itemSize,
mVelocityX = 0.0,
mVelocityY = (0.5 - this.mRandom.NextDouble() - 0.25) / this.mTargetFrameRate,
mType = newItemType,
mDissolve = 0.0,
mState = FallingItemState.Falling,
mImageSource = this.GetItemImageSource(newItemType)
};
this.mFallingItems.Add(fallingItem);
}
private BitmapSource GetItemImageSource(FallingItemType itemType)
{
if (itemType == FallingItemType.Cherry) {
return this.mImages[itemType][this.mRandom.Next(this.mImages[itemType].Count)];
} else {
return this.mImages[itemType][0];
}
}
public void SetFallingItemFilter(FallingItemType filterFallingItem)
{
this.mFilterFallingItem = filterFallingItem;
}
