private void TestForDanger(Missile missile)
{
Vector2 delta = missile.Velocity;
delta.Normalize();
delta *= Vector2.Subtract(missile.Position, this.Position).Length();
IDoodad doodad = null;
float minFraction = float.MaxValue;
this.world.RayCast((f, p, n, fr) =>
{
if (!(f.Body.UserData is Pit))
{
if (fr < minFraction)
{
minFraction = fr;
doodad = f.Body.UserData as IDoodad;
}
return 1;
}
else
{
return -1;
}
},
missile.Position,
missile.Position + delta);
// in the calling method we established there was a missle near us.
// after the ray cast finishes we know whether the missile is on a
// collision course with this tank. If it is try to shoot it down!
if (doodad != null && doodad.Equals(this))
{
if (this.CanFireMissile(missile.Position))
{
Vector2 missileDelta = Vector2.Subtract(missile.Position, this.Position);
float theta = (float)Math.Atan2(missileDelta.Y, missileDelta.X);
float noise = MathHelper.PiOver4 / 4;
theta += (float)(noise - this.random.NextDouble() * 2 * noise);
this.FireAtTarget(theta);
}
}
}
public IDoodad CreateDoodad(DoodadPlacement doodadPlacement)
{
IDoodad doodad;
switch (doodadPlacement.DoodadType)
{
case DoodadType.Tile:
doodad = new TileDoodad(doodadPlacement.Position, doodadPlacement.Rotation, doodadPlacement.Source);
break;
case DoodadType.Tank:
if (doodadPlacement.Team == Team.Green)
{
doodad = new PlayerControlledTank(
this.soundManager,
this,
this.world,
this.doodads,
doodadPlacement.Team,
this.random,
doodadPlacement.Position,
doodadPlacement.Rotation);
}
else
{
doodad = new ComputerControlledTank(
this.soundManager,
this.world,
this.doodads,
doodadPlacement.Team,
doodadPlacement.Position,
doodadPlacement.Rotation,
this.random,
this,
this.waypoints.Where(waypoint => waypoint.Color.ToLowerInvariant() == doodadPlacement.WaypointColor.ToLowerInvariant()));
}
break;
case DoodadType.Wall:
doodad = new Wall(this.world, doodadPlacement.Position, doodadPlacement.Rotation, doodadPlacement.Source);
break;
case DoodadType.Missile:
doodad = new Missile(
this.soundManager,
this.world,
this.doodads,
doodadPlacement.NumberOfBounces,
doodadPlacement.Team,
doodadPlacement.Position,
doodadPlacement.Rotation,
this);
break;
case DoodadType.Pit:
doodad = new Pit(
this.world,
doodadPlacement.Position,
doodadPlacement.Rotation,
doodadPlacement.Source);
break;
case DoodadType.Waypoint:
doodad = new Waypoint(doodadPlacement.Position, doodadPlacement.WaypointColor, this.waypoints);
break;
case DoodadType.BlastMark:
doodad = new BlastMark(doodadPlacement.Position, this.random);
break;
case DoodadType.TreadMark:
doodad = new TreadMark(doodadPlacement.Position, doodadPlacement.Rotation, this.doodads);
break;
case DoodadType.PowerUp:
doodad = new PowerUp(
this.soundManager,
this.world,
this.random,
this.doodads,
doodadPlacement.Position,
this);
break;
default:
throw new ArgumentOutOfRangeException();
}
this.doodads.Add(doodad);
return doodad;
}
public MissileView(Missile missile)
{
this.missile = missile;
}
