public Bullet(Texture2D[] inputTexture, Vector2 gunPosition)
{
// Initial bullet state should be "in-flight."
state = Bulletstate.Traversing;
// x/y velocity; pixels per frame.
velocity = 16;
scale = 1;
// Textures.
bulletTexture = inputTexture[1];
borderTexture = inputTexture[2];
// Effects and colour.
effects = SpriteEffects.None;
color = Color.White;
// Animation frame.
bullet = new Rectangle(0, 0, 55, 11);
// Gun vector.
bulletPosition.X = gunPosition.X;
bulletPosition.Y = gunPosition.Y - bulletTexture.Height / 2;
// Offset, used for animatng rotation.
rotationOffset = new Vector2(27.5F, 10.5F);
// Mouse.
mousePosition = new Vector2(Game.MOUSE.X, Game.MOUSE.Y);
// If mouse is left of bullet.
if (mousePosition.X < bulletPosition.X)
{
// Animation frame.
bullet.X = 59;
// Reverse velocity.
velocity = -velocity;
// The path the bullet will travel after firing.
bulletPath = mousePosition - bulletPosition;
}
// If mouse is right of bullet.
if (mousePosition.X >= bulletPosition.X)
{
bullet.X = 0;
bulletPath = bulletPosition - mousePosition;
}
// Rotation is set once.
rotation = (float)(Math.Atan2(bulletPath.Y, bulletPath.X));
}
private void Traversing()
{
if (bulletPath != Vector2.Zero)
bulletPath.Normalize();
bulletPosition -= bulletPath * velocity;
if (!Rectangle().Intersects(Game.BOUNDS))
state = Bulletstate.Expired;
}
public void State(int newState)
{
if (newState == 1)
state = Bulletstate.Traversing;
if (newState == 2)
state = Bulletstate.Detonating;
if (newState == 3)
state = Bulletstate.Expired;
}
