public Mine(Texture2D[] inputTexture, SoundEffect inputBlast)
{
blast = inputBlast;
played = false;
state = Minestate.Halted;
color = Color.White;
coreTexture = inputTexture[0];
spikeTexture = inputTexture[1];
explosionTexture = inputTexture[2];
borderTexture = inputTexture[3];
core = new Rectangle(0, 0, 40, 40);
spikes = new Rectangle(90, 0, 40, 40);
explosion = new Rectangle(0, 0, 125, 125);
angle = 0;
angleDiff = 0.3F;
mineScale = 1;
health = 100;
// Velocity is randomized within a small range to present more challenge to the player.
baseVelocity = 3; velocityMod = 7;
velocity = baseVelocity + Helper.Rng((int)velocityMod);
minePosition = new Vector2(0 - coreTexture.Width, 0 - coreTexture.Height);
rotationOffset = new Vector2(20, 20);
// Animation timer.
rotation = new Stopwatch(); rotation.Start();
// Respawn timer.
halt = new Stopwatch();
// Explosion.
explosionTimer = new Stopwatch();
// Shot animation.
shotTimer = new Stopwatch();
effects = SpriteEffects.None;
if (Game.DEBUG)
{
velocity = 3;
dString1 = dString2 = "";
dPosition1 = dPosition2 = new Vector2(0, 0);
}
}
private void Traverse()
{
Animate();
if (Game.DEBUG)
{
dString1 = "H: " + health + " " + "V: " + velocity;
dString2 = "X: " + minePosition.X + " " + "Y: " + minePosition.Y;
dPosition1 = new Vector2(minePosition.X + core.Width + 1, minePosition.Y - 13);
dPosition2 = new Vector2(minePosition.X + core.Width + 1, minePosition.Y + 2);
}
// Proximity.
distance = Vector2.Distance(minePosition, new Vector2(reference.X + (reference.Width / 2), reference.Y + (reference.Height / 2)));
// Traverse left.
minePosition.X -= velocity;
// Check if it needs to be drawn.
if (minePosition.X + core.Width < 0)
state = Minestate.Halted;
}
private void Shot()
{
Animate();
if (Game.DEBUG)
{
dString1 = "H: " + health + " " + "V: " + velocity;
dString2 = "X: " + minePosition.X + " " + "Y: " + minePosition.Y;
dPosition1 = new Vector2(minePosition.X + core.Width + 1, minePosition.Y - 13);
dPosition2 = new Vector2(minePosition.X + core.Width + 1, minePosition.Y + 2);
}
if (!shotTimer.IsRunning)
{
shotTimer.Restart();
// Health decreases inverse to speed: Slower mines take less damage. TODO: Tweak.
health -= (int)((velocity * (velocity * 0.3F)) * 5);
}
// Proximity to player.
distance = Vector2.Distance(minePosition, new Vector2(reference.X + (reference.Width / 2), reference.Y + (reference.Height / 2)));
if (shotTimer.ElapsedMilliseconds > 180)
{
if (health <= 0)
state = Minestate.Explosion;
else
state = Minestate.Traverse;
shotTimer.Stop();
}
}
private void Halt()
{
if (!halt.IsRunning)
halt.Restart();
health = 100;
minePosition.X = Game.WIDTH + core.Width;
minePosition.Y = Helper.Rng(Game.HEIGHT - spikes.Height);
// Randomize speed for the next run.
if (!Game.DEBUG)
velocity = baseVelocity + Helper.Rng((int)velocityMod);
if (Game.DEBUG)
velocity = 3;
haltDuration = Helper.Rng(10000);
if (halt.ElapsedMilliseconds > haltDuration)
{
halt.Stop();
state = Minestate.Traverse;
}
}
private void Explosion()
{
float elapsed = explosionTimer.ElapsedMilliseconds * 0.002F;
if (!played)
{
played = true;
blast.Play();
}
// Keep the explosion centered on the mine's position.
explosionPosition.X = minePosition.X - spikes.Width / 3 * explosionScale;
explosionPosition.Y = minePosition.Y - spikes.Height / 3 * explosionScale;
if (!explosionTimer.IsRunning)
explosionTimer.Restart();
explosionScale = elapsed;
explosionOpacity = 1 - elapsed;
if (explosionTimer.ElapsedMilliseconds >= 500)
{
explosionTimer.Stop();
state = Minestate.Halted;
played = false;
}
}
public void State(int newState, Vector2 newBulletPosition = default(Vector2))
{
if (newState == 1)
state = Minestate.Traverse;
if (newState == 2)
state = Minestate.Halted;
if (newState == 3)
state = Minestate.Explosion;
if (newState == 4)
{
bulletSnapshot = newBulletPosition;
state = Minestate.Shot;
}
}
