3 Ways to Shoot Projectiles in Unity! 

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There's another way to detect projectile collisions, which is ideal for if you want the projectile to travel very fast, but not be an instant-hit like how a raycast would accomplish. Using the distance check or physics system can both occasionally allow projectiles to pass through targets if the projectile is traveling fast enough (even if you're using a rigidbody with continuous collision detection), causing something like this to happen... [Projectile last frame]  [Target]  [Projectile current frame]    >===>       (O)       >===> ...Where the position of the projectile between the last and current frame is at a great enough distance to completely pass the target, never intersecting with it. The trick to solve this is by having the projectile perform a raycast backwards to the position it was in on the previous frame, and detect if the raycast has intersected with anything, which would look like this: [Projectile last frame]  [Target]  [Projectile current frame]  [x = raycast hit]    >===>------------------------(O)x------------------------>===> So far, I've had a 100% success rate with very fast projectiles hitting targets using this method.

Congrats on the unity sponsorship! great video

I love how every action your character made you also include the tutorial on how to do said action, you truly are awesome

Wow! These videos are AWESOME. Thank you so much for taking the time to do provide this content. You are helping me finish my first game jam!

Excellent tutorial, as always. I'm keeping my fingers crossed that this channel becomes your sustainable source of income!

One of the variations on the first bullet would be to have a raycast from the last position to a new position to act as continuous collision substitution. That will allow fast non Rigidbody objects to test collision without checking all targets.

Looking good, shooting projectiles is so cool!

Hey, I've just made something similar for my own project and I have a few suggestions to your code. To instantiate the bullet you can write something like this: Instantiate(Bullet, aim.position, aim.rotation); And then in the Bullet class you only need to write: void Start() { Destroy(gameObject, 5f); } // Update is called once per frame void Update() { transform.position += transform.forward * Time.deltaTime * 100; }

Hello, another smart and clear video for those who have to stay home. Thank you so much !

Literally started to look for a video like this a week ago. You good sir have earned yourself a new subscriber. Please continue doing quick yet indepth videos like this one on small mechanics. Your approach was perfect.

Top quality video! Finally I 've fully understood what is a raycasthit! and like the video on the different types of collision, also this video explained in the simplest and clearest way possible the differences between all these methods...I'm very grateful to you!

Great video, and I just realized that battlefield4 uses the ray cast hit detection method in 3d, I realized it when i shot a rocket in the game and no rocket spawned but there was still an explosion, funny that I was confused and thought the game was bugged, but now I can try and make it myself

What are the pros and cons of using the transform method vs addForce method to move a projectile?

Wow,You are a real pro,Hard Work Pays

Just having a hard time trying to use this because of all the premade scripts

if (target != null) target.Damage(); Can be shortened to just: Target?.Damage();

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Thanks for the amazing tutorial as per usual! Keep em coming!

great video! just when I was thinking how to merge two lasers and form a third laser to emit the other way without having a hole in the middle. this video enlightened me ~ thank you. oh and what about using particle system for projectiles? Is it good or bad? cuz that seems to be the easiest...would I face problems using that in the long term?

I need the projectile to have new mechanics and components after upgrading. But adding components when creating the projectile is costly for mobile devices, in my opinion.

Thanks for the tut. now i get it

CharacterAim_Base the type or namespacename could not be found pls help!

this video was awesome thanks

Nice job!keep up the good work

Awesome video! Will you also teach how you keep the CharacterAim_Base gunEndPointPosition updated?

8:35 How could I get angle and make bullet go straight in a top down 3D game?

Hey man, Can you cover how can we make Pooling System for our games?

How can I make a spread for bullets?

could you show how to shoot particle projectiles?

In the PlayerShoot class is it possible to pass the position of the target (from the BulletRaycast class if it hits something) so the weapon tracer doesn't go over the target if it hits it. Thanks for the awesome videos!

big fan of you

Coolio! 👍🤓

Why there’s no particle system driven projectiles? In some cases, it is the easiest way.

if you dont mind, can you make a tutorial on creating goodlooking water 2d in unity.

Is it possible to use Trigger on the particle system?

Great vide real helpful, though my bullet is going through the walls of my game, how can I fix it

I see a problem with the transform and the physics solution: When the bullet is fast and the target small the chance is very high that the bullet skips the target since position in Frame x is befor the target and in frame x+1 already behind it. I solved that by checking every frame some space ahead with Physics.OverlapSphere() if the bullet is close enough to a target.

The bullet trace continues past the target after it hits, would you need to modify the bullet trace class to make sure it stops when it hits the target?

I have two problems, one problem is with the first method, my bullets speed are variable depending how close my mouse is to the player, the second is with the second method, because using add force make the bullets knockback enemies that also have a collider and a rigidbody.

Code Monkey, do you have video about controll characher in TopDown game?

Hello sr. Im emiting an object that has vfx but it start small and increase by time to the wanted original size. How to emit it without the increase just original size?

Good video! I downloaded the project and my Unity ver: 2021.3.11f complained about 'using UnityEngine.Experimental.Rendering.light2D' . Most of the project works, but I am curious how to fix that. Thanks!

I'm having a hard time with the first one. It works up to when I need to pass the shootDirection to the bullet script. The vector looks correct in the Setup function but the default back to 0 in the update function.

The screen shake is so small and satisfying..how did u do that

@code monkey, is there a way to combine the raycast methord with guninputpos, like the slower bullet to prevent fps reg issues? im still new to coding, but so far ive done a few scripts :D

I know this has hit detection with the assumption on shooting projectiles, but what kind of hit detection would be best for button smashers that are just melee combat based?

Could you make a tutorial to show how to make a 2d shooter game with like enemies running at you and you shoot them in a 2d game.

How about using particles as bullets???

Would you be able to use the first two shooting methods when you're programming enemy AI?

How can I apply rotation to the shootDir so the projectiles would be like a fixed shotgun pattern?

I want to do the method of the prefab bullet but I already have a script to use the "object pooler" I would not know how to put this same script to mine because you use your utilities,any help?

i cant add a component to a prefab, it says i can only modify it through assetpostprocessor. why is this?

Hey, uhm can you explain the CharacterAimBase please, I cant seem to find a video where you talk about it...

Bullet are too fast for collision and it is saying destroying object may cause loss data plz fix my problems Edit = thank For reply but this are baby solutions and by the way I have already fix it my bullet speed. Was 3000 and it was going through wall so I want to destroy it on collision with other objects. So first I use trigger enter but unfortunately trigger enter unable to catch frame due to bullet high-speed So i used raycast for collision detection of bullet

Is the collider in particle system any good for bullets?

Bro, I am making a 2d top down space shooter. There is a problem in shooting system, that is , when enemy is shooting and I shoot, then the player's bullet is colliding with enemy bullet and the player's bullet is destroyed but the enemies bullet is not destroyed. Can you tell me what to do to make the both bullets passing away without any collision.

Should have used the same asset so we could clearly see the differences...

Please teach us making this sort of toturials form scartch... request from mee

Hi i have a question which is the best performant approach for a tower defense type of game that doesnt consume much processing with lots of bullets instantiated?

How can I contact you because you can work with me in the future Because you are one of the geniuses that I want to join my team in the future all the best from anass i hope to reply me soon

I get this weird thing with my GunEndPointPosition that makes it so when i shoot, the bulled starts at like -40x instead of x being 0. I have no clue of what im doing wrong. Help would be greatly appreciated.

What do I do to Raycast2D

Hmm... does the collision system in Unity account for frame rate differences? I made a game in Java before and had to write my own code to account for that stuff. Would be nice to not have to do that.

Hiya, the mega bundle says error code, not available. shame.

I'm having a problem i can't understand When i shoot, the bullet goes in the direction of the mouse compared to the center of the scene instead of the player position Any ideia of how to solve this??? My code looks like is exactly to the one in the video

Hi there -- I'm totally stumped on a null reference I'm getting for the event. I started with the 2d character controller tutorial w/ dodge roll & dash, then the aim at mouse tutorial, and now trying to add the shooting. Aiming works fine as I can see from the debug.log of the angle I'm aiming at correctly. The "object reference not set to an instance of an object" error triggers within HandleShooting() on this line: OnShoot?.Invoke(this, new OnShootEventArgs Visual studio is not flagging any issues. Within Unity I have an empty object for the Player (shell) with the logic attached (char controller, player aim weapon, and player shoot projectile scripts) then a child object capsule placeholder, and the only serialized field is for the projectile prefab's transform, which was dragged in. The projectile is an empty game object (shell) w the projectile script attached, and a child visual which is simply a square sprite scaled into a rectangle (aka my placeholder laser visual). Then I have the Aim empty gameobject as a child of the Player (shell) with a child game object for the sprite and another child empty gameobject for the GunEndPointPosition. Save my sanity for +2,000 XP and eternal gratitude. using System; using System.Collections; using System.Collections.Generic; using UnityEngine; public class PlayerAimWeapon : MonoBehaviour { public event EventHandler OnShoot; public class OnShootEventArgs : EventArgs { public Vector3 gunEndPointPosition; public Vector3 shootPosition; } private Transform aimTransform; private Transform aimGunEndPointTransform; private Animator aimAnimator; private void Awake() { aimTransform = transform.Find("Aim"); aimAnimator = aimTransform.GetComponent(); aimGunEndPointTransform = transform.Find("GunEndPointPosition"); } private void Update() { HandleAiming(); HandleShooting(); } private void HandleAiming() { Vector3 mousePosition = GetMouseWorldPosition(); Vector3 aimDirection = (mousePosition - transform.position).normalized; float angle = Mathf.Atan2(aimDirection.y, aimDirection.x) * Mathf.Rad2Deg; aimTransform.eulerAngles = new Vector3(0, 0, angle); Debug.Log(angle); } private void HandleShooting() { if (Input.GetMouseButtonDown(0)) { Vector3 mousePosition = GetMouseWorldPosition(); //aimAnimator.SetTrigger("Shoot"); OnShoot?.Invoke(this, new OnShootEventArgs { gunEndPointPosition = aimGunEndPointTransform.position, shootPosition = mousePosition, }); } } using System; using System.Collections; using System.Collections.Generic; using UnityEngine; public class PlayerShootProjectile : MonoBehaviour { [SerializeField] private Transform projectilePrefab; private void Awake() { GetComponent().OnShoot += PlayerShootProjectile_OnShoot; } private void PlayerShootProjectile_OnShoot(object sender, PlayerAimWeapon.OnShootEventArgs e) { Transform projectileTransform = Instantiate(projectilePrefab, e.gunEndPointPosition, Quaternion.identity); Vector3 shootDir = (e.shootPosition - e.gunEndPointPosition).normalized; projectileTransform.GetComponent().Setup(shootDir); } } I don't think this last script is involved in the error, but just in case.. this is the "Bullet" script from the video using System; using System.Collections; using System.Collections.Generic; using UnityEngine; public class Projectile : MonoBehaviour { private Vector3 shootDir; public void Setup(Vector3 shootDir) { this.shootDir = shootDir; } private void Update() { float moveSpeed = 100f; transform.position += moveSpeed * Time.deltaTime * shootDir; } }

I work on a 2d platformer, only sideview. Are your options viable in this kind of scenario? I already have some code, but I have troubles with the bullets. They fly up instead away from the player, and I cant rotate them. But could your script work in my case?

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I am having such an issue with this. I have used the code exactly as it is and the bullets do not move, they just hover in the spawn location. Has anyone else had this issue?

I have an issue when using the first method where if I have my cursor on top of my player everything gets messed up, because it shoots from the gun endpoint at my mouse which is on my player, so essentially I shoot backwards. Is there a solution to this?

3 ways to melee attack ?

I need some help with making my projectiles play a particle upon impact or destruction

I know that is old video but I have really weird problem my bullets don't fly flat my I do a top down game (2D) and my shooting position have served 0 in rotation but bullet still don't fly flat Any solution for this, some ideas

Sir please tell how to make a our own game and program

How do you get the shoot direction to cast the raycast?

Make amionation tutorials

I HAVE A HUGEEEEE ISSUE with firing the Gun, the bullet spawn lags behind just a small distance behind, no matter what direction I move in, depending on speed and height, like if I am running or Jumping, or just side strafing, the bullet spawnpoint shifts side to side, it sucks, please help. If you could point me in the right direction or offer your advice, I would be forever in your debt. So, Basically the bullets are spawning from where I was a second or so before, rather than from where I am. It makes the bullet spawnpoint to shift side to side, Help....Please. Here is the code I am using using System.Collections; using System.Collections.Generic; using UnityEngine; public class Gun : MonoBehaviour { public float speed = 80; public GameObject bullet; public Transform barrel; public AudioSource audioSource; public AudioClip audioClip; public void Fire() { Instantiate(bullet, barrel.position, barrel.rotation).GetComponent().AddForce(barrel.forward * speed); audioSource.PlayOneShot(audioClip); Destroy(bullet, 2); } }

I making a fnaf fan game on unity and i can’t make a Good ai I did wander but well it traces the player it goes back to wandering and it’s been doing my head in can you help I only know C# and I’m learning python

Can someone tell me that is this game was made in 2D or 3D please ?

Can you share what code you have in CharacterAim_Base script.

how do I get the endpoint?

How can i use CodeMonkey.Utils ???

I Need a 3d raycast

Video starts at 4:00

my problem with rigidbody bullets are that OnCollisionEnter work too slow. when my bullet hit something after 1sec. the effect appears

youtube sucks, i search "projectiles in unity3d" and the first result is a unity2d tutorial

Can you replay of all the codes in this vid I don’t really have time to write and sorry if I bothered you

dont work

using CodeMonkey; using CodeMonkey.Utils; ??

3:13

can you do 3D xD

uninstall

get to to the freaking point man

how a can use the librery "using CodeMonkey.utils" thats librery unity doesn have

Transform bulletTransform = Instantiate(Bullet, ToFirePoint , Quaternion.identity show to me Cannot implicitly convert type 'UnityEngine.GameObject' to 'UnityEngine.Transform'

Really usefull video but i have issue and i don't really know how to fix it. Every time i try to play the game i get this error in unity: NullReferenceException: Object reference not set to an instance of an object PlayerAimWerpon.HandleAming () (at Assets/scripts/PlayerAimWerpon.cs:28) PlayerAimWerpon.Update () (at Assets/scripts/PlayerAimWerpon.cs:18) (although I dont get any error messages in VS) Here is fragment of code its having issues with private void Update(){ HandleAming(); } private void HandleAming() { Vector3 mousePosition = UtilsClass.GetMouseWorldPosition(); Vector3 aimDirection = (mousePosition - transform.position).normalized; float angle = Mathf.Atan2(aimDirection.y, aimDirection.x) * Mathf.Rad2Deg; aimTransform.eulerAngles = new Vector3(0, 0, angle); } }