protected override void UpdateInternal(GameTime time)
{
var turretRotation = BasicHelpers.NormalizeAngle(TankHelper.ConstrainTurretRotation(
null, null,
Components["turret"].Rotation + Rotation,
InputState.LookDirection,
1.5f * (float)time.ElapsedGameTime.TotalSeconds
) - Rotation);
//Network optimization - check if turret rotation changed without accounting for object rotation
var uncorrected = BasicHelpers.NormalizeAngle(TankHelper.ConstrainTurretRotation(
null, null,
_uncorrectedRot,
InputState.LookDirection,
1.5f * (float)time.ElapsedGameTime.TotalSeconds
));
_uncorrectedRot = uncorrected;
ComponentGroups["turret"].Rotation = turretRotation;
if (Authoritative && MathHelper.Distance(_lastStateChangeRotation, uncorrected) > 0.05)
{
RaiseStateChangeEvent(a => a.Write(turretRotation));
_lastStateChangeRotation = uncorrected;
}
Animations["death_explosion"].Mask = ColorMask;
base.UpdateInternal(time);
}
public static float ConstrainTurretRotation(float?minRotation, float?maxRotation, float currentRotation, float targetRotation, float maxSpeed)
{
if (minRotation != null && maxRotation != null)
{
if (targetRotation < minRotation)
{
targetRotation = minRotation.Value;
}
if (targetRotation > maxRotation)
{
targetRotation = maxRotation.Value;
}
}
currentRotation = BasicHelpers.NormalizeAngle(currentRotation);
targetRotation = BasicHelpers.NormalizeAngle(targetRotation);
var shortestDistance = BasicHelpers.NormalizeAngle(
targetRotation - currentRotation + MathHelper.Pi) - MathHelper.Pi;
if (shortestDistance < 0)
{
return(currentRotation + Math.Max(shortestDistance, -maxSpeed));
}
return(currentRotation + Math.Min(shortestDistance, maxSpeed));
}