/// <summary>
/// Given a node, pull the sprite nodes out from underneath it and store them if necessary.
/// </summary>
/// <param name="taskToCheck">Node to check.</param>
private void GetSpriteNodes(BulletMLTask taskToCheck)
{
// Check if this fire task has a sprite node
var spriteNode = taskToCheck?.Node.GetChild(NodeName.sprite) as SpriteNode;
if (spriteNode == null)
{
return;
}
if (SpriteTask == null)
{
SpriteTask = new SpriteTask(spriteNode, taskToCheck);
}
}
/// <summary>
/// Run this task and all subtasks against a bullet.
/// This is called once per frame during runtime.
/// </summary>
/// <returns>TaskRunStatus: whether this task is done, paused, or still running.</returns>
/// <param name="bullet">The bullet to update this task against.</param>
public override TaskRunStatus Run(Bullet bullet)
{
_isRunning = true;
// Create the new bullet
var newBullet = bullet.BulletManager.CreateBullet();
newBullet.X = bullet.X;
newBullet.Y = bullet.Y;
// Set the new bullet's direction
newBullet.Direction = FireDirection;
// Set the new bullet's speed
newBullet.Speed = FireSpeed;
// Set the new bullet's speed
newBullet.Scale = FireScale;
// Set the new bullet's sprite index
if (SpriteTask != null)
{
newBullet.SpriteIndex = (short)SpriteTask.GetNodeValue(bullet);
}
// Store the new bullet's direction and speed for the sequence type
_lastFireDirection = FireDirection;
_lastFireSpeed = FireSpeed;
_lastFireScale = FireScale;
// Initialize the bullet with the bullet node stored in the fire node
var fireNode = Node as FireNode;
Debug.Assert(null != fireNode);
newBullet.InitNode(fireNode.BulletDescriptionNode);
// Set the owner of all the top level tasks for the new bullet to this task
foreach (var task in newBullet.Tasks)
{
task.Owner = this;
}
Finished = true;
return(TaskRunStatus.End);
}
