private void LaunchProjectile(WeaponProjectile projectile)
{
// Create the projectile
if (projectile != null && this.CastProjectiles)
{
WeaponProjectile.Create(
projectile,
this,
this.LaunchPoint,
(this.CurrentDirection == Direction.Left ? -1 : 1));
}
}
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]);
}
}
}
}
/// <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
projectile.launchPoint = launchPoint;
projectile.transform.position = projectile.launchPoint.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);
}
protected override void Start()
{
base.Start();
this.spriteRenderer = this.GetComponentInChildren <SpriteRenderer>();
this.outlineSpriteRenderer = this.spriteRenderer.transform.GetChild(0).GetComponentInChildren <SpriteRenderer>();
// Get the sprite from the hand of the character
GameObject weaponPart = null;
Sprite weaponSprite = this.spriteRenderer.sprite;
Sprite weaponOutlineSprite = this.outlineSpriteRenderer.sprite;
// Search the character for the appropriate weapon sprite
Collider2D weaponBox = this.GetComponentInChildren <Collider2D>();
if (this.Owner != null)
{
SpriteRenderer[] parts = this.Owner.GetComponentsInChildren <SpriteRenderer>();
for (int i = 0; i < parts.Length; i++)
{
if (parts[i].name == (this.IsMainItem ? "HeldItemMainSprite" : "HeldItemOffSprite"))
{
weaponPart = parts[i].gameObject;
weaponSprite = parts[i].sprite;
// Now search this weapon's children for the outline sprite
for (int j = 0; j < parts[i].transform.childCount; j++)
{
var child = parts[i].transform.GetChild(j);
if (child.name.EndsWith("-Outline"))
{
weaponOutlineSprite = child.GetComponentInChildren <SpriteRenderer>().sprite;
break;
}
}
weaponBox = null;
break;
}
}
}
// Update our sprite to match the one we are throwing
if (weaponSprite != null)
{
if (this.spriteRenderer != null)
{
this.spriteRenderer.sprite = weaponSprite;
this.outlineSpriteRenderer.sprite = weaponOutlineSprite;
this.outlineSpriteRenderer.color = this.Owner.GetComponent <PixelPartsOutline>().OutlineTint;
this.outlineSpriteRenderer.enabled = this.Owner.GetComponent <PixelPartsOutline>().UseOutline;
}
}
// If a collision box is not found, we generate one using PolygonCollider2D so that it fits the shape of the sprite
if (weaponBox == null)
{
// Create a new collider that will take the shape of the sprite
var spriteCollider = this.spriteRenderer.gameObject.AddComponent <PolygonCollider2D>();
spriteCollider.enabled = false;
// Now copy it into different gameobjects that will not rotate
var collisionO = new GameObject("CollisionOrigin");
collisionO.transform.SetParent(this.CollisionHolder, false);
var cO = collisionO.gameObject.AddComponent <PolygonCollider2D>();
cO.points = spriteCollider.points;
cO.enabled = true;
var collisionR = new GameObject("CollisionRotated");
collisionR.transform.SetParent(this.CollisionHolder, false);
var cR = collisionR.gameObject.AddComponent <PolygonCollider2D>();
cR.points = spriteCollider.points;
cR.transform.localEulerAngles = new Vector3(0, 0, 90);
cR.enabled = true;
// Make the generated colliders a bit smaller
this.CollisionHolder.transform.localScale = new Vector3(0.5f, 0.5f, 0.5f);
// Center the sprite based on the new collider
Rigidbody2D body = this.GetComponent <Rigidbody2D>();
if (body != null && weaponPart != null)
{
Vector3 dirScale = new Vector3(this.DirectionX, 1, 1);
this.spriteRenderer.transform.localPosition = Vector3.Scale(-body.centerOfMass, dirScale);
this.RotateTransform.localEulerAngles = new Vector3(0, 0, this.StartRotation);
// If we are going to rotate, adjust the start position so we don't just hit the ground immediately
if (this.RotationSpeed != 0 || this.StartRotation != 0)
{
var minY = Mathf.Min(cO.bounds.extents.y, cR.bounds.extents.y) * 2;
var maxY = Mathf.Max(cO.bounds.extents.y, cR.bounds.extents.y) * 2;
if (this.RotationSpeed != 0 && this.launchPoint.localPosition.y < maxY)
{
this.transform.localPosition += Vector3.up * (maxY - this.launchPoint.localPosition.y);
}
else if (this.RotationSpeed == 0 && this.launchPoint.localPosition.y < minY)
{
this.transform.localPosition += Vector3.up * (minY - this.launchPoint.localPosition.y);
}
else if (this.RotationSpeed == 0)
{
if (this.StartRotation != 0)
{
if (this.launchPoint.localPosition.y < cR.bounds.extents.y * 2)
{
this.transform.localPosition += Vector3.up * (cR.bounds.extents.y * 2 - this.launchPoint.localPosition.y);
}
cO.enabled = false;
}
else if (this.StartRotation == 0)
{
if (this.launchPoint.localPosition.y < cO.bounds.extents.y * 2)
{
this.transform.localPosition += Vector3.up * (cO.bounds.extents.y * 2 - this.launchPoint.localPosition.y);
}
cR.enabled = false;
}
}
// Reset the slider joint that prevents any Y movement
SliderJoint2D joint = this.GetComponent <SliderJoint2D>();
if (joint != null)
{
joint.anchor = new Vector2(this.transform.position.x, -this.transform.position.y);
}
}
}
// Since we updated the collider we need to re-ignore the collisions
WeaponProjectile.IgnoreOwnerCollisions(this, this.Owner);
}
}
