public void UpdateTrajectoryModel(double setThrust, double setGravity, double setInitSpeed, double setParachuteReleaseHeight, double setDropHeight,
double setTargetDescentVelocityLarge, double setTargetDescentVelocitySmall, double setTargetDescentVelocitySmallAltitude)
{
guidanceTrajectory = new TrajectoryModel(setThrust, setGravity, setInitSpeed, setParachuteReleaseHeight, setDropHeight, setTargetDescentVelocityLarge,
setTargetDescentVelocitySmall, setTargetDescentVelocitySmallAltitude);
AxialAlpha = new AxialThruster(setThrust);
AxialBeta = new AxialThruster(setThrust);
AxialCharlie = new AxialThruster(setThrust);
altitude = setParachuteReleaseHeight;
velocity = setInitSpeed;
PrescribedIgnitionAltitude = setParachuteReleaseHeight;
}
/// <summary>
/// This method will process the testing of application components when the user clicks the "Preflight" button.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TestThruster_Click(object sender, EventArgs e)
{
textBox2.Text = "Running pre-flight checks...\r\n";
textBox2.Refresh();
textBox2.Text += "Trajectory Model: ";
textBox2.Text += ThrottleCalculator.SelfTest() == true ? "Success\r\n" : "Failure\r\n";
textBox2.Text += "Thruster: ";
textBox2.Text += MainThruster.SelfTest() == true ? "Success\r\n" : "Failure\r\n";
textBox2.Text += "RollThruster: ";
textBox2.Text += RollThruster.SelfTest() == true ? "Success\r\n" : "Failure\r\n";
textBox2.Text += "AxialThruster: ";
textBox2.Text += AxialThruster.SelfTest() == true ? "Success\r\n" : "Failure\r\n";
textBox2.Text += "Guidance Control: ";
textBox2.Text += GuidanceSystem.SelfTest() == true ? "Success\r\n" : "Failure\r\n";
textBox2.Text += "Pre-flight checks completed.";
}
// Test cases
public bool SelfTest()
{
AxialThruster testThruster;
bool returnVal = true;
/* For these test cases we test 5 different scenarios looking for expected, manually calculated outputs:
* -1 throttle = should fail
* 0 throttle = should equal 0 thrust
* .5 throttle = should equal 12 thrust
* 1 throttle = should equal 24 thrust
* 2 throttle = should fail
*/
// Test creation/constructor
try
{
testThruster = new AxialThruster(24);
}
catch
{
// Log a failure or output message
return(false);
}
if (returnVal == true)
{
returnVal = RunThrottleTest(ref testThruster, -1, -1);
}
if (returnVal == true)
{
returnVal = RunThrottleTest(ref testThruster, 0, 0);
}
if (returnVal == true)
{
returnVal = RunThrottleTest(ref testThruster, .5, 12);
}
if (returnVal == true)
{
returnVal = RunThrottleTest(ref testThruster, 1, 24);
}
if (returnVal == true)
{
returnVal = RunThrottleTest(ref testThruster, 2, -1);
}
return(returnVal);
}
private bool RunThrottleTest(ref AxialThruster testThruster, double throttleTest, int resultTest)
{
// Try setting throttle
try
{
testThruster.SetThrottle(throttleTest);
}
catch
{
if (resultTest != -1)
{
// Log a failure or output message
return(false);
}
}
// Try getting throttle
if (resultTest == -1)
{
try
{
if (testThruster.GetThrottle() != 0)
{
Debug.Write(testThruster.GetThrottle());
// Log a failure or output message
return(false);
}
}
catch
{
// Log a failure or output message
return(false);
}
}
else
{
if (testThruster.GetThrottle() != throttleTest)
{
// Log a failure or output message
return(false);
}
}
// Try getting thrust
if (resultTest == -1)
{
try
{
if (testThruster.GetThrust() != 0)
{
// Log a failure or output message
return(false);
}
}
catch
{
// We expect failure possibilities depending on input
}
}
else
{
try
{
if (testThruster.GetThrust() != resultTest)
{
// Log a failure or output message
return(false);
}
}
catch
{
// Log a failure or output message
return(false);
}
}
// Get generated thrust
try
{
if (testThruster.GetThrustGenerated() != 24)
{
// Log a failure or output message
return(false);
}
}
catch
{
return(false);
}
// Nothing else made us fail, so it looks good
return(true);
}