/// <summary>
/// Constructor for missile
/// </summary>
/// <param name="spawnPos">Start position</param>
/// <param name="initialAim">Position missile is initally aimed at</param>
/// <param name="ownerSprite">Sprite that fired this missile</param>
/// <param name="targetSprite">Target for missile</param>
/// <param name="missileSpeed">Velocity of missile</param>
/// <param name="maxTurn">Maximum turning angle for missile</param>
/// <param name="lifetime">How many seconds this missile lives for</param>
/// <param name="missileDamage">Damage on impact</param>
public Missile(Vector2 spawnPos, Vector2 initialAim, Sprite ownerSprite, Sprite targetSprite, float missileSpeed, float maxTurn, float lifetime, int missileDamage)
{
//Assigning variables
owner = ownerSprite;
target = targetSprite;
damage = missileDamage;
turnAmount = maxTurn;
speed = missileSpeed;
//Events
GM.eventM.AddTimer(tiLifetimeCounter = new Event(lifetime, "Lifetime Counter"));
GM.eventM.AddTimer(tiSmokeCounter = new Event(0.5f, "Smoke Counter"));
//Graphics
GM.engineM.AddSprite(this);
Frame.Define(Tex.SingleWhitePixel);
Wash = Color.OrangeRed;
SX = 8;
SY = 32;
//Sound effect
Moving = true;
CollisionActive = true;
CollisionPrimary = true;
UpdateCallBack += Move;
PrologueCallBack += Hit;
RotationHelper.FacePosition(this, new Vector3(initialAim, 0), DirectionAccuracy.free, 0, false);
Position2D = spawnPos;
}
private void Move()
{
//For gunSprite
Vector2 playerPos = GameSetup.PlayerChar.Position2D;
Vector2 direction = playerPos - Position2D;
direction = Vector2.Normalize(direction);
RotationHelper.FaceDirection(gunSprite, direction, DirectionAccuracy.free, 0);
gunSprite.Position2D = Position2D + (direction * 15);
Vector2 currentPosition = Position2D;
//For movement:
float distanceFromPlayer = Vector2.Distance(Position2D, playerPos);
if (distanceFromPlayer > 200)
{
//Move towards player
RotationHelper.FacePosition(this, GameSetup.PlayerChar.Position, DirectionAccuracy.free, 0, false);
RotationHelper.VelocityInCurrentDirection(this, 500, 0);
}
if (distanceFromPlayer < 400)
{
//Switch strafe direction after 2 seconds
int dirMultiplier = 1;
if (tiSwitchDirection.ElapsedSoFar > 2)
{
dirMultiplier = -1;
}
RotationHelper.VelocityInThisDirection(this, RotationHelper.MyDirection(this, dirMultiplier * 60), 250);
//For firing
if (GM.eventM.Elapsed(tiShootCooldown))
{
//create bullet and pass reference to player and angle
new Bullet(this, playerPos, 1000f, 10);
}
}
}
private void Move()
{
//Move towards player
RotationHelper.FacePosition(this, GameSetup.PlayerChar.Position, DirectionAccuracy.free, 0, false);
RotationHelper.VelocityInCurrentDirection(this, 400, 0);
}