override public void Move()
{
DLink pNode = this.poHead;
while (pNode != null)
{
Component pComponent = (Component)pNode;
pComponent.Move();
pNode = pNode.pNext;
}
}
public override void Move(float xDelta, float yDelta)
{
DLink pNode = this.pHead;
while (pNode != null)
{
// Get component
Component pComponent = (Component)pNode;
// Move component
pComponent.Move(xDelta, yDelta);
// Increment pointer along list
pNode = pNode.GetNext();
}
}
public override void Execute(AlienGroup pGrid)
{
this.pIter.TakeHierachy(pGrid);
Component pComponent = this.pIter.First();
if (pComponent == null)
{
return;
// TODO
// Player killed all aliens. Should start second stage.
}
// TODO
// UPDATE ITERATOR -> IT SHOULDN"T CHECK PCOMPONENT != THIS
while (this.pIter.IsDone() || pComponent != pGrid)
{
pComponent.Move(0, -Constant.ALIEN_VERTICAL_STEP);
pComponent = this.pIter.Next();
}
this.Handle(pGrid);
}
public override void Move(float dummyX, float dummyY)
{
DLink pNode = this.pHead;
// #1 - Initial movement since wall collision - Move down
if (switchXDirection && !directionChangePending)
{
this.SetXDelta(0.0f);
this.SetYDelta(-25.0f);
this.directionChangePending = true;
}
while (pNode != null)
{
// Get component
Component pComponent = (Component)pNode;
// Move component
pComponent.Move(this.xDelta, this.yDelta);
pNode = pNode.GetNext();
}
// #3 - Finally, Grid has moved off wall, reset direction change flag
if (directionChangePending && !switchXDirection)
{
this.directionChangePending = false;
}
// #2 - Movement down complete, switch X direction
if (switchXDirection == true)
{
// Reset deltas to horizontal movement in opposite direction
this.yDelta = 0.0f;
this.xDelta = (this.prevXDelta * -1.0f);
this.switchXDirection = false;
}
}