/// <summary>
/// Update the ship.
/// </summary>
/// <param name="elapsedTime">The amount of elapsed time, in seconds.</param>
public override void Update(float elapsedTime)
{
// process all input
ProcessInput(elapsedTime, false);
// if this player isn't in the game, then quit now
if (playing == false)
{
return;
}
if (dead == true)
{
// if we've died, then we're counting down to respawning
if (respawnTimer > 0f)
{
respawnTimer = Math.Max(respawnTimer - elapsedTime, 0f);
}
if (respawnTimer <= 0f)
{
Spawn(true);
}
}
else
{
// apply drag to the velocity
velocity -= velocity * (elapsedTime * dragPerSecond);
if (velocity.LengthSquared() <= 0f)
{
velocity = Vector2.Zero;
}
// decrement the heal timer if necessary
if (shieldRechargeTimer > 0f)
{
shieldRechargeTimer = Math.Max(shieldRechargeTimer - elapsedTime,
0f);
}
// recharge the shields if the timer has come up
if (shieldRechargeTimer <= 0f)
{
if (shield < 100f)
{
shield = Math.Min(100f,
shield + shieldRechargePerSecond * elapsedTime);
}
}
}
// update the weapons
if (weapon != null)
{
weapon.Update(elapsedTime);
}
if (mineWeapon != null)
{
mineWeapon.Update(elapsedTime);
}
// decrement the safe timer
if (safeTimer > 0f)
{
safeTimer = Math.Max(safeTimer - elapsedTime, 0f);
}
// update the radius based on the shield
radius = (shield > 0f) ? 20f : 14f;
// update the spawn-in timer
if (fadeInTimer < fadeInTimerMaximum)
{
fadeInTimer = Math.Min(fadeInTimer + elapsedTime,
fadeInTimerMaximum);
}
// update and apply the vibration
smallMotorTimer -= elapsedTime;
largeMotorTimer -= elapsedTime;
GamePad.SetVibration(playerIndex,
(largeMotorTimer > 0f) ? largeMotorSpeed : 0f,
(smallMotorTimer > 0f) ? smallMotorSpeed : 0f);
base.Update(elapsedTime);
}
