public override bool PerformFrame(BCBlockGameState gamestate)
{
bool returnvalue = base.PerformFrame(gamestate);
switch (_ShotState)
{
case BuilderShotState.BSS_Projectile:
List<Block> resulthittest = BCBlockGameState.Block_HitTest(gamestate.Blocks, getfullsize(),
false);
returnvalue = !returnvalue || resulthittest.Any();
if (returnvalue)
{
_ShotState = BuilderShotState.BSS_Expand;
Velocity = new PointF(0, 0.01f);
gamestate.Forcerefresh = true;
}
return false;
case BuilderShotState.BSS_Expand:
//if our size is the desired size of the block, create that block and return true.
//otherwise, change out size and location to emulate "growing".
if (this.ShotSize.Width >= BuildSize.Width &&
ShotSize.Height >= BuildSize.Height)
{
//grow phase completed.
//create the block in the desired location.
RectangleF desiredlocation = new RectangleF(Location.X, Location.Y, BuildSize.Width,
BuildSize.Height);
Block builtblock = (Block) Activator.CreateInstance(this.BuildBlock, desiredlocation);
//add it to the game...
gamestate.Blocks.AddLast(builtblock);
//make sure to force a refresh, too.
gamestate.Forcerefresh = true;
gamestate.Defer(
() => gamestate.GameObjects.AddLast(new ProxyObject(forcerefresher, null)));
//return true to destroy outselves.
//todo: maybe add "effects" here, too?
return true;
}
else
{
//otherwise, we are in the growing phase.
//growincrement could be null, if so, initialize it...
if (Growincrement == null)
{
//initialize it to the difference between the final size and the current shot size, divided
//by increments.
Growincrement = new SizeF((BuildSize.Width - ShotSize.Width)/increments,
(BuildSize.Height - ShotSize.Height)/increments);
}
//change size by growincrement.
Location = new PointF(Location.X - Growincrement.Value.Width,
Location.Y - Growincrement.Value.Height);
ShotSize = new SizeF(ShotSize.Width + Growincrement.Value.Width*2,
ShotSize.Height + Growincrement.Value.Height*2);
}
return false;
}
return false;
}
public void ExpandPhase()
{
//enter expansion phase.
_ShotState = BuilderShotState.BSS_Expand;
_Velocity = new PointF(0, 0); //full stop, ensign.
}
