/// <summary>
/// Instantiate a new instance of the WeaponProjectile class using the supplied parameters
/// </summary>
/// <param name="instance">The instance to use as the base</param>
/// <param name="owner">The character that owns this projectile</param>
/// <param name="launchPoint">Where to spawn the projectile</param>
/// <param name="directionX">The direction to move</param>
/// <returns>The new projectile</returns>
public static WeaponProjectile Create(WeaponProjectile instance, Character owner, Transform launchPoint, int directionX)
{
WeaponProjectile projectile = GameObject.Instantiate <WeaponProjectile>(instance);
projectile.Owner = owner;
// Set the start position
Vector2 position = launchPoint.position;
projectile.transform.position = position;
projectile.DirectionX = directionX;
// Make sure we can't collide with the person who shot this projectile
WeaponProjectile.IgnoreOwnerCollisions(projectile, owner);
// Flip the sprite if necessary
if (projectile.ShouldFlipDirection && directionX < 0)
{
Vector3 rotation = projectile.transform.localRotation.eulerAngles;
rotation.y -= 180;
projectile.transform.localEulerAngles = rotation;
}
return(projectile);
}
private void LaunchProjectile(WeaponProjectile projectile)
{
// Create the projectile
if (projectile != null)
{
WeaponProjectile.Create(
projectile,
this,
this.LaunchPoint,
(this.CurrentDirection == Direction.Left ? -1 : 1));
}
}
protected override void Start()
{
base.Start();
// Get the sprite from the hand of the character
Sprite weaponSprite = this.GetComponentInChildren <SpriteRenderer>().sprite;
BoxCollider2D weaponBox = this.GetComponentInChildren <BoxCollider2D>();
if (this.Owner != null)
{
SpriteRenderer[] parts = this.Owner.GetComponentsInChildren <SpriteRenderer>();
for (int i = 0; i < parts.Length; i++)
{
if (parts[i].name == (this.IsMainItem ? "MainItem" : "OffItem"))
{
weaponSprite = parts[i].sprite;
weaponBox = parts[i].gameObject.GetComponent <BoxCollider2D>();
break;
}
}
}
// Update our sprite to match the one we are throwing
if (weaponSprite != null)
{
SpriteRenderer sr = this.GetComponentInChildren <SpriteRenderer>();
if (sr != null)
{
sr.sprite = weaponSprite;
}
}
// Update our collision box based on the one we are throwing
if (weaponBox != null)
{
BoxCollider2D bc = this.GetComponentInChildren <BoxCollider2D>();
if (bc != null)
{
bc.offset = weaponBox.offset;
bc.size = weaponBox.size;
}
// Since we updated the collider we need to re-ignore the collisions
WeaponProjectile.IgnoreOwnerCollisions(this, this.Owner);
this.RenderTransform.localPosition = -weaponBox.offset;
this.RenderTransform.RotateAround(this.transform.position, Vector3.forward, this.StartRotation * this.DirectionX);
}
}
protected static void IgnoreOwnerCollisions(WeaponProjectile projectile, Character owner)
{
// Prevent hitting the player who cast it
if (owner != null)
{
Collider2D[] colliders = owner.GetComponentsInChildren <Collider2D>();
Collider2D[] projectileColliders = projectile.GetComponentsInChildren <Collider2D>();
for (int i = 0; i < colliders.Length; i++)
{
for (int j = 0; j < projectileColliders.Length; j++)
{
Physics2D.IgnoreCollision(colliders[i], projectileColliders[j]);
}
}
}
}
