// This could be smarter. If dest is too close & perpendicular, then the tank
// can end up circling around.
public void MoveTowards(DVector2 dest)
{
ComSat.Trace(this, "MoveTowards");
var dir = dest - entity.position; // also vector to dest.
var targetAngle = DVector2.ToAngle(dir);
var baseAngle = Utility.CalculateNewAngle(entity.rotation, targetAngle, DReal.Radians(turnSpeed));
entity.rotation = baseAngle;
// Move along current heading. Ramp speed up as the angle gets closer.
// Augh.
// [-pi,pi] => [0,2pi]
if (targetAngle < 0)
{
targetAngle += DReal.TwoPI;
}
// Get targetAngle within +/- pi of baseAngle.
if (targetAngle < baseAngle - DReal.PI)
{
targetAngle += DReal.TwoPI;
}
else if (targetAngle > baseAngle + DReal.PI)
{
targetAngle -= DReal.TwoPI;
}
var diff = DReal.Abs(baseAngle - targetAngle);
if (canMoveWithoutTurning || diff < maxMoveAngle)
{
var distance = dir.magnitude;
//print("Distance: " + distance + " speed is: " + tickSpeed);
var speed = minSpeed + (maxSpeed - minSpeed) * (1 - (diff / DReal.PI));
if (distance < speed)
{
speed = DReal.Max(minSpeed, distance);
}
entity.velocity = canMoveWithoutTurning ? dir.normalized * speed : DVector2.FromAngle(baseAngle) * speed;
}
else
{
Stop();
}
}
void TickUpdate()
{
ComSat.Trace(this, "TickUpdate");
if (combatVehicle.mode == CombatVehicle.Mode.IDLE)
{
combatVehicle.mode = CombatVehicle.Mode.MOVE;
combatVehicle.destination = entity.position;
}
if (ComSat.EntityExists(combatVehicle.target))
{
var dist = combatVehicle.target.position - entity.position;
var sqrDist = dist.sqrMagnitude;
var targetAngle = DReal.Mod(DVector2.ToAngle(dist), DReal.TwoPI);
// Get targetAngle within +/- pi of entity.rotation.
if (targetAngle < entity.rotation - DReal.PI)
{
targetAngle += DReal.TwoPI;
}
else if (targetAngle > entity.rotation + DReal.PI)
{
targetAngle -= DReal.TwoPI;
}
if (sqrDist < missileRange * missileRange)
{
FireMissile();
}
if (sqrDist < gunRange * gunRange && DReal.Abs(entity.rotation - targetAngle) < 1)
{
FireGun();
if (!gunFireSound.isPlaying)
{
gunFireSound.Play();
}
}
else
{
gunFireSound.Stop();
}
}
else
{
gunFireSound.Stop();
}
if (missilesLoaded < maxMissiles)
{
if (missileReloadTime <= 0)
{
missileReloadTime = missileReloadDelay;
}
else
{
missileReloadTime -= ComSat.tickRate;
if (missileReloadTime <= 0)
{
missilesLoaded += 1;
}
}
}
if (missileRecycleDelay > 0)
{
missileRecycleDelay -= ComSat.tickRate;
}
if (gunRecycleDelay > 0)
{
gunRecycleDelay -= ComSat.tickRate;
}
}