// Use this for initialization
void Start()
{
GravityEngine ge = GravityEngine.Instance();
time.text = string.Format(time_format, ge.GetTimeWorldSeconds(), ge.GetTimeZoom());
Vector3 pos = ship.initialPos;
position.text = string.Format(pos_format, pos.x, pos.y, pos.z);
velocity.text = string.Format(vel_format, 0f, 0f, 0f);
if (rocketEngine == null)
{
Debug.LogError("Need a rocket component");
}
fuelText.text = string.Format(fuel_format, rocketEngine.GetFuel());
attitude.text = string.Format(attitude_format, 0f, 0f, 0f);
// assume earth at (0,0,0)
initial_altitude = Vector3.Magnitude(ship.transform.position) - (float)atmosphere.heightEarthSurface;
altitude.text = string.Format(altitude_format, initial_altitude);
if (drag != null)
{
drag.text = string.Format(drag_format, atmosphere.GetAccelSI());
}
if (accel != null)
{
accel.text = string.Format(accel_format, earthRocket.GetAccel());
}
if (thrust != null)
{
thrust.text = string.Format(thrust_format, 100f);
}
}
public void SetTextInfo(float fuel, Vector3 angles)
{
GravityEngine ge = GravityEngine.Instance();
time.text = string.Format(time_format, ge.GetTimeWorldSeconds(), ge.GetTimeZoom());
double[] r = new double[3];
double[] v = new double[3];
GravityEngine.Instance().GetPositionVelocityScaled(ship, ref r, ref v);
position.text = string.Format(pos_format, r[0], r[1], r[2]);
velocity.text = string.Format(vel_format, v[0], v[1], v[2]);
fuelText.text = string.Format(fuel_format, fuel);
attitude.text = string.Format(attitude_format, angles.y, angles.x, angles.z);
altitudeNow = Vector3.Magnitude(ship.transform.position) - (float)atmosphere.heightEarthSurface;
altitude.text = string.Format(altitude_format, altitudeNow);
if (drag != null)
{
drag.text = string.Format(drag_format, atmosphere.GetAccelSI());
}
if (accel != null)
{
accel.text = string.Format(accel_format, earthRocket.GetAccel());
}
if (thrust != null)
{
thrust.text = string.Format(thrust_format, rocketEngine.GetThrottlePercent());
}
}
// Update is called once per frame
void FixedUpdate()
{
// monitor for engine start (not ideal, but avoids linking to LaunchUI script)
if ((timeStarted < 0) && engine.engineOn)
{
timeStarted = ge.GetPhysicalTime();
float pitch0 = pitchCurve.Evaluate(0);
Vector3 localVertical = Vector3.Normalize(ge.GetPhysicsPosition(ship) - ge.GetPhysicsPosition(earth));
lastAttitude = Vector3.Cross(localVertical, Vector3.forward); // forward = (0,0,1)
lastAttitude = Quaternion.AngleAxis(pitch0, Vector3.forward) * lastAttitude;
}
if (timeStarted > 0)
{
float t = (float)(ge.GetTimeWorldSeconds() - timeStarted) / timeRangePhysical;
t = Mathf.Clamp(t, 0f, 1f);
// pitch in range 0..90 as curve goes 0..1
float pitch = pitchCurve.Evaluate(t) * 90.0f;
// find the local vertical
Vector3 localVertical = Vector3.Normalize(ge.GetPhysicsPosition(ship) - ge.GetPhysicsPosition(earth));
// First get local horizontal (this ordering of cross product assumes we want to go East)
Vector3 attitude = Vector3.Cross(localVertical, Vector3.forward); // forward = (0,0,1)
attitude = Quaternion.AngleAxis(pitch, Vector3.forward) * attitude;
engine.SetThrustAxis(-attitude);
shipModel.RotateToVector(attitude);
// when attitude changes by 1 degree, re-compute trajectories
if (Vector3.Angle(attitude, lastAttitude) > 1f)
{
ge.TrajectoryRestart();
lastAttitude = attitude;
}
// thrust
float thrust = thrustCurve.Evaluate(t);
engine.SetThrottlePercent(100f * thrust);
}
}
