Hello, I am a beginner to Unity and Spine and have been learning using Spineboy. I am using the Objected Oriented Example where Spineboy can move, jump, aim and shoot. After studying this code, I have decided to add a shoot controller script which simply generates bullet prefab when the shoot event is detected. This shoot controller uses the transform position of a "FirePoint" object which is using the bonefollower script to update the position transform based on the "gun-tip" bone.

Everything works well except that when I begin shooting or the first shot is always originating in the wrong location. Meaning the first shot originates from the location of the gun tip when it is in the idle animation location. If I continue to hold the mouse down, subsequent shots(starting from the second) are coming from the correct gun-tip point.

It seems that my shoot prefab starts before the gun-tip is in the right location from the aim and shoot animations. I am not sure how to resolve this? Please help as I a have been stuck on this for days.

Thank you,

Hello, Thank you for the reply. My apologies for not being specific.

I am adding a bullet prefab and shoot function to the Spineboy Object Oriented Example. I have added a ShootBullet() function to the PlayShoot() which is called when the ShootEvent occurs. The firingPoint position is an empty object which is using the bonefollower script to track "gun-tip".

To debug, I have put Debug.Log(firingPoint.position) as the last line in the ShootBullet() function.
With the mouse location held in place on screen and upon holding down the mouse button, the firingPoint position reads:

First Bullet: (-3.2, -1.8, 0.0)
Second Bullet and beyond: (-3.3, -1.0, 0.0)

The first Bullet firePoint seems to be location of the "gun-tip" when in the idle pose. The Second bullet and beyond fire point is correct.

I am sharing the relevant portions of the code below which is a truncated version to save you some eye strain. (my changes/additions are in bold)

using UnityEngine;
using System.Collections;
using Spine.Unity;

namespace Spine.Unity.Examples {
public class SpineboyBeginnerView : MonoBehaviour {

	#region Inspector
	[Header("Components")]
	public SpineboyBeginnerModel model;
	public SkeletonAnimation skeletonAnimation;
	public float speed;
	public float movement;
	private Rigidbody2D rbody;

	public AnimationReferenceAsset run, idle, aim, shoot, jump;
	public EventDataReferenceAsset footstepEvent;

	[Header("Audio")]
	public float footstepPitchOffset = 0.2f;
	public float gunsoundPitchOffset = 0.13f;
	public AudioSource footstepSource, gunSource, jumpSource;

	[Header("Effects")]
	public ParticleSystem gunParticles;
	#endregion

	SpineBeginnerBodyState previousViewState;

	public Transform firingPoint;
	public GameObject bulletPrefab;
	public Vector2 aimm;
	public float bulletspeed = 15f;

	void Start () {
		if (skeletonAnimation == null) return;
		model.ShootEvent += PlayShoot;
		model.StartAimEvent += StartPlayingAim;
		model.StopAimEvent += StopPlayingAim;
		skeletonAnimation.AnimationState.Event += HandleEvent;
		rbody = GetComponent<Rigidbody2D>();
	}

	void HandleEvent (Spine.TrackEntry trackEntry, Spine.Event e) {
		if (e.Data == footstepEvent.EventData)
			PlayFootstepSound();
	}
	

	#region Transient Actions
	public void PlayShoot () {
		// Play the shoot animation on track 1.
		var shootTrack = skeletonAnimation.AnimationState.SetAnimation(1, shoot, false);
		shootTrack.AttachmentThreshold = 1f;
		shootTrack.MixDuration = 0f;
		var empty1 = skeletonAnimation.state.AddEmptyAnimation(1, 0.5f, 0.1f);
		empty1.AttachmentThreshold = 1f;

		// Play the aim animation on track 2 to aim at the mouse target.
		var aimTrack = skeletonAnimation.AnimationState.SetAnimation(2, aim, false);
		aimTrack.AttachmentThreshold = 1f;
		aimTrack.MixDuration = 0f;
		var empty2 = skeletonAnimation.state.AddEmptyAnimation(2, 0.5f, 0.1f);
		empty2.AttachmentThreshold = 1f;

		gunSource.pitch = GetRandomPitch(gunsoundPitchOffset);
		gunSource.Play();
		//gunParticles.randomSeed = (uint)Random.Range(0, 100);
		gunParticles.Play();
		[b]ShootBullet();[/b]
	}

	[b]private void ShootBullet()
	{
		GameObject bullet = Instantiate(bulletPrefab, firingPoint.position, Quaternion.Euler(new Vector3(0f, 0f, 0f)));

		var mousePosition = Input.mousePosition;
		var worldMousePosition = Camera.main.ScreenToWorldPoint(mousePosition);
		aimm = new Vector2(worldMousePosition.x - firingPoint.position.x, worldMousePosition.y - firingPoint.position.y);
		aimm.Normalize();
		bullet.GetComponent<Rigidbody2D>().velocity = aimm * bulletspeed;
		Debug.Log(firingPoint.position);
	}[/b]  

I have attached an image that will help to clarify.

@vhristov, @[cancellato]

Thank you so much! That did the trick. I really appreciate the patience and the detailed response as I am rather new at this.
I did have to add both skeletonAnimation.Update(0); and boneFollower.LateUpdate(); for it to work correctly.

Take care and thanks again!