// Update is called once per frame
void Update()
{
// Don't simulate things when paused ...
if (Time.timeScale != 0)
{
// If the health show timer isn't zero, decrement it
if (HealthShowTimer > 0)
{
HealthShowTimer -= Time.deltaTime;
}
// Normalize the velocity
_Rigidbody.velocity.Normalize();
// Set torque to zero
_Rigidbody.angularVelocity = 0;
// Decrement shoot timer. If it's greater than Time.deltaTime, then
// subtract the delta time, otherwise set the shoot timer to 0 to
// stop values like 0.00000000000001
if (ShootTimer > Time.deltaTime)
{
ShootTimer -= Time.deltaTime;
}
else if (ShootTimer > 0)
{
ShootTimer = 0;
}
// Cool down the railguns
if (RailgunTemp > 0)
{
RailgunTemp -= Time.deltaTime * 30f;
}
// Bounds checking, wrap around if need be
// Checking right boundaries
if (transform.position.x > BoundsRight)
{
transform.position += new Vector3(-(BoundsRight - BoundsLeft) + 5, 0);
}
// Checking left boundaries
if (transform.position.x < BoundsLeft)
{
transform.position += new Vector3(BoundsRight - BoundsLeft - 5, 0);
}
// Checking top boundaries
if (transform.position.y > BoundsUp)
{
transform.position += new Vector3(0, -(BoundsUp - BoundsDown) + 5); // Wrap around
}
// Checking bottom boundaries
if (transform.position.y < BoundsDown)
{
transform.position += new Vector3(0, BoundsUp - BoundsDown - 5); // Wrap around
}
// Player code
if (IsPlayer)
{
// Thruster animations
if (Input.GetKey(KeyCode.W))
{
// Activate thrusters
transform.GetChild(0).gameObject.SetActive(true);
}
else
{
// Deactivate thrusters
transform.GetChild(0).gameObject.SetActive(false);
}
// If the thrusters are not being fixed, then run them normally
if (CurrentComponentId != 1)
{
// Fly forward
if (Input.GetKey(KeyCode.W))
{
// Move forward
MoveForward();
}
// Rotate
if (Input.GetKey(KeyCode.A))
{
transform.Rotate(new Vector3(0, 0, TurnSpeed * Time.deltaTime));
}
if (Input.GetKey(KeyCode.D))
{
transform.Rotate(new Vector3(0, 0, -TurnSpeed * Time.deltaTime));
}
}
else
{
// Setup a signal
string InputSignal = "";
// Set forward signal
if (Input.GetKey(KeyCode.W))
{
InputSignal += "1";
}
else
{
InputSignal += "0";
}
// Set left rotation signal
if (Input.GetKey(KeyCode.A))
{
InputSignal += "1";
}
else
{
InputSignal += "0";
}
// Set right rotation signal
if (Input.GetKey(KeyCode.D))
{
InputSignal += "1";
}
else
{
InputSignal += "0";
}
// Set inputs
_Gates.SetInputs(InputSignal);
}
// If the railguns aren't broken, shoot
if (CurrentComponentId != 2)
{
// Don't shoot if overheated
if (RailgunTemp < RailOverheatPoint * CooldownMargin)
{
if (ShootTimer == 0)
{
// Shoot
if (Input.GetKey(KeyCode.UpArrow))
{
FireRailgun(0);
}
if (Input.GetKey(KeyCode.LeftArrow))
{
FireRailgun(1);
}
if (Input.GetKey(KeyCode.RightArrow))
{
FireRailgun(2);
}
}
}
}
else
{
// Setup a signal
string InputSignal = "";
// Set forward fire signal
if (Input.GetKey(KeyCode.UpArrow) && ShootTimer == 0)
{
InputSignal += "1";
}
else
{
InputSignal += "0";
}
// Set left fire signal
if (Input.GetKey(KeyCode.LeftArrow))
{
InputSignal += "1";
}
else
{
InputSignal += "0";
}
// Set right fire signal
if (Input.GetKey(KeyCode.RightArrow))
{
InputSignal += "1";
}
else
{
InputSignal += "0";
}
// Set overheating signal
if (RailgunTemp > RailOverheatPoint * CooldownMargin)
{
InputSignal += "1";
}
else
{
InputSignal += "0";
}
// Send signal
_Gates.SetInputs(InputSignal);
}
// Get the output of the current circuit board
string Output = _Gates.GetCurrentOutputs();
// Handle the output for the current circuit board
if (CurrentComponentId == 1)
{
// Two thruster 'clusters'
// Left and right - if you power both, you go forward, power only one
// and you turn
// Check we have all 2 outputs
if (Output.Length < 2)
{
Debug.LogError("Too few outputs");
}
// First sort out the rotation, that's pretty easy
// Anti-clockwise rotation
if (Output[0] == '1')
{
transform.Rotate(new Vector3(0, 0, -TurnSpeed * Time.deltaTime));
}
// Clockwise rotation
if (Output[1] == '1')
{
transform.Rotate(new Vector3(0, 0, TurnSpeed * Time.deltaTime));
}
// Now for the forward thrust
if (Output[0] == '1' && Output[1] == '1')
{
MoveForward();
}
}
// Railguns
if (CurrentComponentId == 2)
{
// As in the guide on components
// First check we have all outputs
if (Output.Length < 3)
{
Debug.LogError("Too few outputs");
}
// Shoot every few milliseconds
if (ShootTimer == 0)
{
// Forward railgun
if (Output[0] == '1')
{
// Fire forward railgun
FireRailgun(0);
}
// Left railgun
if (Output[1] == '1')
{
FireRailgun(1);
}
// Right railgun
if (Output[2] == '1')
{
FireRailgun(2);
}
}
// Check temperature. If it's too high, fry all the circuits
if (RailgunTemp > RailOverheatPoint)
{
_Gates.FryCircuits();
}
}
}
else
{
// Enemy code
// How hard do we really want to make the AI? :|
// Calculate where to shoot
// Estimate travel time to player
float ShellTravelTime = Vector2.Distance(PlayerShip.transform.position, this.transform.position) / MaxSpeed;
// Estimate position
Vector2 EstimatedPosition = PlayerShip.transform.position + Vector3.Project(PlayerShip._Rigidbody.velocity, PlayerShip.transform.forward) * ShellTravelTime;
// Aim towards player
Vector3 Target = PlayerShip.transform.position - transform.position;
Target.Normalize();
float TargetAngle = Mathf.Atan2(Target.y, Target.x) * Mathf.Rad2Deg;
// Aiming to ship
// Rotate towards player ship, and shoot
if (PlayerShip.transform.position.y > transform.position.y && !PlayerInSights)
{
// Rotate
if (TargetAngle < transform.eulerAngles.z)
{
transform.Rotate(new Vector3(0, 0, -TurnSpeed * Time.deltaTime));
}
else
{
transform.Rotate(new Vector3(0, 0, TurnSpeed * Time.deltaTime));
}
}
else if (!PlayerInSights)
{
// Try to get below the player
if (transform.eulerAngles.z - 180 > TargetAngle + 180)
{
transform.Rotate(new Vector3(0, 0, -TurnSpeed * Time.deltaTime));
}
else
{
transform.Rotate(new Vector3(0, 0, TurnSpeed * Time.deltaTime));
}
}
// Checking for player being in sights
if (PlayerShip.transform.position.y > transform.position.y)
{
// Check for player being in sights
PlayerInSights = Mathf.Abs(TargetAngle - transform.eulerAngles.z) < 5;
}
else
{
// Check for player being in sights
PlayerInSights = Mathf.Abs((TargetAngle + 180) - (transform.eulerAngles.z - 180)) < 5;
}
// Maintaining target distance
// Get distance
float Distance = Vector2.Distance(this.transform.position, PlayerShip.transform.position);
// Move away from player if the distance is too far
if (Distance < TargetDistance - 0.1f)
{
// If the player is above the ship, shoot (ai not working properly?)
if (PlayerShip.transform.position.y > transform.position.y)
{
// Rotate
if (TargetAngle + 180 < transform.eulerAngles.z - 180)
{
transform.Rotate(new Vector3(0, 0, -TurnSpeed * Time.deltaTime));
}
else
{
transform.Rotate(new Vector3(0, 0, TurnSpeed * Time.deltaTime));
}
}
else
{
// Try to get below the player
if (transform.eulerAngles.z > TargetAngle)
{
transform.Rotate(new Vector3(0, 0, -TurnSpeed * Time.deltaTime));
}
else
{
transform.Rotate(new Vector3(0, 0, TurnSpeed * Time.deltaTime));
}
}
// Move forwards (away from player)
MoveForward();
}
else if (Distance > TargetDistance + 0.1f)
{
// We're already facing the player, so move towards them
MoveForward();
}
// Shoot
if (ShootTimer == 0 && PlayerInSights && RailgunTemp < RailOverheatPoint * CooldownMargin)
{
FireRailgun(0);
}
}
}
}
