} // end of Setup()
/// <summary>
/// c'tor for use when targetting a point in space rather than an object.
/// </summary>
/// <param name="position"></param>
/// <param name="targetPosition"></param>
/// <param name="launcher"></param>
/// <param name="verbPayload"></param>
/// <param name="trackingMode"></param>
/// <param name="color"></param>
/// <returns></returns>
static public CruiseMissile Create(
Vector3 position, // Starting position.
Vector3 targetPosition, // Location we're trying to hit.
GameActor launcher, // Actor that launched this missile.
float initialRotation, //
GameThing.Verbs verbPayload,
int damage,
MissileChassis.BehaviorFlags behavior,
Classification.Colors color,
float desiredSpeed,
float missileLifetime,
bool wantSmoke)
{
CruiseMissile cm = NextAvailable();
cm.Setup(
position,
launcher,
initialRotation,
verbPayload,
damage,
behavior,
color,
desiredSpeed,
wantSmoke);
//Vector3 forward = Vector3.Normalize(targetPosition - position);
//Vector3 side = Vector3.Cross(Vector3.UnitZ, forward);
//if (side.LengthSquared() < 0.01f)
//{
// side = Vector3.Cross(Vector3.UnitY, forward);
//}
//side.Normalize();
//Vector3 up = Vector3.Normalize(Vector3.Cross(forward, side));
//Matrix l2w = Matrix.Identity;
//l2w.Right = forward;
//l2w.Up = up;
//l2w.Forward = side;
//l2w.Translation = position;
//cm.Movement.LocalMatrix = l2w;
MissileChassis missileChassis = cm.Chassis as MissileChassis;
Vector3 direction = targetPosition - launcher.WorldCollisionCenter;
Vector3 delta = Vector3.Normalize(direction);
float desiredPitch = (float)(Math.Atan2(delta.Z, new Vector2(delta.X, delta.Y).Length()));
missileChassis.PitchAngle = desiredPitch;
missileChassis.DeathTime = Time.GameTimeTotalSeconds + missileLifetime * 1.1f;
missileChassis.TargetPosition = position + delta * desiredSpeed * missileLifetime * 10f;
missileChassis.TargetObject = null;
return(cm);
} // end of CruiseMissile Create
} // end of CruiseMissile Create
/// <summary>
/// c'tor to use when shooting at a particular object
/// </summary>
/// <param name="position"></param>
/// <param name="targetPosition"></param>
/// <param name="targetThing"></param>
/// <param name="launcher"></param>
/// <param name="verbPayload"></param>
/// <param name="trackingMode"></param>
/// <param name="color"></param>
/// <returns></returns>
static public CruiseMissile Create(
Vector3 position, // Starting position.
GameThing targetThing, // Object we're trying to hit.
GameActor launcher, // Actor that launched this missile.
float initialRotation, //
GameThing.Verbs verbPayload,
int damage,
MissileChassis.BehaviorFlags behavior,
Classification.Colors color,
float desiredSpeed,
float missileLifetime,
bool wantSmoke)
{
CruiseMissile cm = NextAvailable();
cm.Setup(
position,
launcher,
initialRotation,
verbPayload,
damage,
behavior,
color,
desiredSpeed,
wantSmoke);
MissileChassis missileChassis = cm.Chassis as MissileChassis;
// Set initial speed taking into account the velocity of the launcher.
Vector3 missileVelocity = new Vector3((float)Math.Cos(initialRotation), (float)Math.Sin(initialRotation), 0);
float dot = Vector3.Dot(missileVelocity, launcher.Movement.Velocity);
missileChassis.Speed = Math.Max(desiredSpeed, dot);
missileChassis.DeathTime = Time.GameTimeTotalSeconds + missileLifetime;
missileChassis.TargetPosition = targetThing.WorldCollisionCenter;
missileChassis.TargetObject = targetThing;
return(cm);
} // end of CruiseMissile Create