private void goOverdrive()
{
_state = BlackHoleState.Overdrive;
_explosionTimer = TimeSpan.FromSeconds(SECONDS_BEFORE_EXPLODE);
_particleEffect.IntensityFactor = 3.0f;
Gravity = new Gravity(Position, Gravity.Magnitude * 1.4f);
}
public void Update(GameTime gameTime)
{
_particleEffect.Update(gameTime);
//only spawn particles when pulling or pushing
if (_state == BlackHoleState.Pulling || _state == BlackHoleState.Explosion || _state == BlackHoleState.Overdrive)
{
_particleEffect.Spawn(Position, 0.0f, gameTime.ElapsedGameTime, Vector2.Zero,
1.0f + _capacityUsed / _totalCapacity); //spawn rate increases as capacity fills
}
if (_state == BlackHoleState.Overdrive)
{
_overdriveTimer -= gameTime.ElapsedGameTime;
if (_overdriveTimer < TimeSpan.Zero)
{
_state = BlackHoleState.PreExplosion;
}
}
if (_state == BlackHoleState.PreExplosion || _state == BlackHoleState.Explosion)
{
_explosionTimer -= gameTime.ElapsedGameTime;
if (_explosionTimer <= TimeSpan.Zero)
{
if (_state == BlackHoleState.PreExplosion)
{
_state = BlackHoleState.Explosion; //start exploding
Gravity.MagnitudeFactor = -3; //go from suck to blow
_particleEffect.Reversed = false; //cause particle effects to push out
_explosionTimer = TimeSpan.FromSeconds(SECONDS_DURING_EXPLODE);
}
else
{
_state = BlackHoleState.Exhausted; //stop affecting anything
}
}
}
}
public void Update(GameTime gameTime)
{
_particleEffect.Update(gameTime);
//only spawn particles when pulling or pushing
if (_state == BlackHoleState.Pulling || _state == BlackHoleState.Explosion || _state == BlackHoleState.Overdrive)
{
_particleEffect.Spawn(Position, 0.0f, gameTime.ElapsedGameTime, Vector2.Zero,
1.0f + _capacityUsed / _totalCapacity); //spawn rate increases as capacity fills
}
if (_state == BlackHoleState.Overdrive)
{
_overdriveTimer -= gameTime.ElapsedGameTime;
if (_overdriveTimer < TimeSpan.Zero)
{
_state = BlackHoleState.PreExplosion;
}
}
if (_state == BlackHoleState.PreExplosion || _state == BlackHoleState.Explosion)
{
_explosionTimer -= gameTime.ElapsedGameTime;
if (_explosionTimer <= TimeSpan.Zero)
{
if (_state == BlackHoleState.PreExplosion)
{
_state = BlackHoleState.Explosion; //start exploding
Gravity.MagnitudeFactor = -3; //go from suck to blow
_particleEffect.Reversed = false; //cause particle effects to push out
_explosionTimer = TimeSpan.FromSeconds(SECONDS_DURING_EXPLODE);
}
else
_state = BlackHoleState.Exhausted; //stop affecting anything
}
}
}
private void goOverdrive()
{
_state = BlackHoleState.Overdrive;
_explosionTimer = TimeSpan.FromSeconds(SECONDS_BEFORE_EXPLODE);
_particleEffect.IntensityFactor = 3.0f;
Gravity = new Gravity(Position, Gravity.Magnitude * 1.4f);
}
/// <summary>
/// Apply Gravity on a unit and eat it if close enough
/// call on each unit during unit update loop
/// </summary>
/// <param name="unit">unit to affect. Should be called after updating unit</param>
public void ApplyToUnit(PhysicalUnit unit, GameTime gameTime)
{
if (_state == BlackHoleState.Exhausted || _state == BlackHoleState.PreExplosion)
return;
unit.ApplyGravity(Gravity, gameTime);
if ((Position - unit.Center).Length() <= _radius && _state == BlackHoleState.Pulling)
{ //try to eat unit
if (unit.EatByBlackHole())
{
_capacityUsed += unit.Mass;
foreach (ParticleEffect p in _particleEffects)
{
p.IntensityFactor = 1.0f + _capacityUsed / _totalCapacity;
}
Gravity.MagnitudeFactor = (1.0f + _capacityUsed / _totalCapacity);
if (_capacityUsed > _totalCapacity)
{
_state = BlackHoleState.PreExplosion;
_explosionTimer = TimeSpan.FromSeconds(SECONDS_BEFORE_EXPLODE);
}
}
}
}
