MythoLogic Interactive Forums

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public void OnUpdate( TriggerArgs Btn )

        {

            IPlayer caller = (IPlayer)Btn.Sender;

            IUser pusher = caller.GetUser();

            IPlayer playr = pusher.GetPlayer();

            Vector2 worldPos = playr.GetWorldPosition() + new Vector2 (5,5);

            int playr_dir =  playr.FacingDirection;

            ProjectileItem rocket = ProjectileItem.UZI;

            if (playr_dir == 1)
            {
                IObject rndPositive_Obj =  Game.GetSingleObjectByCustomId("rndObj_pos"); 
                
                // i have 2 objects in my map that allow me to make the bullet either go left or right, the object in this case is rndObj_pos ...  this  object is in the right side of the map making the bullet go right 

                Vector2 positiveObj_pstn = rndPositive_Obj.GetWorldPosition();

                Game.SpawnProjectile(rocket, worldPos, positiveObj_pstn);

                Game.ShowPopupMessage(positiveObj_pstn.ToString());

            } else if (playr_dir == -1)
            {
                IObject rndNegative_Obj = Game.GetSingleObjectByCustomId("rndObj_neg");

		// i have 2 objects in my map that allow me to make the bullet either go left or right, the object in this case is rndObj_neg ...  this  object is in the leftside of the map making the bullet goes left


                Vector2 negativeObj_pstn = rndNegative_Obj.GetWorldPosition();

                Game.SpawnProjectile(rocket, worldPos, negativeObj_pstn);

                Game.ShowPopupMessage(negativeObj_pstn.ToString());

            }
        }
        

Code: Select all

Script Error
Error in method 'Btn_Press(TriggerArgs)' in map script. See the exception for more details:
--- Exception ---
Object reference not set to an instance of an object.
System.NullReferenceException: Object reference not set to an instance of an object.
   at SFDScript.GameScript.Btn_Press(TriggerArgs Btn)
   

Code: Select all

public void OnUpdate(TriggerArgs Btn)
{
	// Get sender as IPlayer
	IPlayer sender = (IPlayer)Btn.Sender;
	// Get sender's position + offset vector
	Vector2 worldPos = sender.GetWorldPosition() + new Vector2(5, 5);
	// Get sender's facing direction
	int playr_dir = sender.FacingDirection;
	// Projectile to be shoot
	ProjectileItem rocket = ProjectileItem.UZI;

	// Initialize object to be shoot var
	IObject obj_ToShoot = null;

	// If sender is facing right
	if (playr_dir == 1)
	{
		// Get object by customID
		obj_ToShoot = Game.GetSingleObjectByCustomId("rndObj_pos");
	}
	else // If facing left
	{
		//Get object by custom ID
		obj_ToShoot = Game.GetSingleObjectByCustomId("rndObj_neg");
	}
	// Failsafe, if object exists in map
	if (obj_ToShoot != null)
	{
		// Get object to shoot pos
		Vector2 objToShootPosition = obj_ToShoot.GetWorldPosition();

		// Spawn projectile rocket, coming from sender, to objToShootPos
		Game.SpawnProjectile(rocket, worldPos, objToShootPosition);
	}
	else // If not
	{
		// Log in console
		Game.ShowPopupMessage("OBJECT wasn't found in map!");
	}
}