public override void Load()
{
float offset = 0;
for (int i = 0; i < CloudCount; i++)
{
CloudRow row = _rows[i];
row.OffsetY = offset - 20;
offset += row.Image.NaturalHeight - 20;
}
}
public override void Init(Scene level)
{
_level = (ShooterLevel)level;
for (int i = 0; i < CloudCount; i++)
{
CloudRow row = (CloudRow) new object();
row.Image = _level.LoadImage("images/shooter/cloud" + (i + 1) + ".png", false);
row.OffsetX = 0;
row.RelativeSpeed = 1.2f - (i / 10);
row.Objects = new List <GameObject>();
_rows[i] = row;
}
}
public override void Update(CanvasContext2D context)
{
for (int i = CloudCount - 1; i >= 0; i--)
{
CloudRow row = _rows[i];
row.OffsetX -= _level.BaseSpeed * row.RelativeSpeed * _level.DeltaTime;
while (row.OffsetX + row.Image.NaturalWidth <= 0)
{
row.OffsetX += row.Image.NaturalWidth;
}
int objectIndex = 0;
float offset = Math.Floor(row.OffsetX);
while (offset < 800)
{
GameObject gameObject;
if (row.Objects.Count <= objectIndex)
{
row.Objects.Add(gameObject = GameObject.Create(row.Image, 0, 0));
gameObject.Location.Z = i * 10;
gameObject.Location.Y = row.OffsetY;
}
else
{
gameObject = row.Objects[objectIndex];
}
gameObject.Location.X = offset;
gameObject.Visible = true;
offset += row.Image.NaturalWidth;
objectIndex++;
}
for (int j = objectIndex; j < row.Objects.Count; j++)
{
row.Objects[j].Visible = false;
}
}
}