DRAG & SHOOT in Unity | 2D Game Dev Tutorial

Hello! Thank you very much for the tutorial! I'm having issues when I set the camera to perspective mode. It only works correctly if it's in orthographic mode. Has anyone else experienced this? How can I solve it?

Followed the video and on finish the line renderer seems like it's attached to the ball object, so when i drag it spawns the line next to the ball rather than where I click. Did I miscode it or miss box tick in a menu or something?

Either way awesome video :) thanks for putting it out

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerScript : MonoBehaviour
{

public float power = 10f;
public Rigidbody2D rb;

public Vector2 minPower;
public Vector2 maxPower;

Camera cam;
Vector2 force;
Vector3 startPoint;
Vector3 endPoint;

private void Start()
{
cam = Camera.main;

}

private void Update()
{
if (Input.GetMouseButtonDown(0))
{
startPoint = cam.ScreenToWorldPoint(Input.mousePosition);
startPoint.z = 15;
Debug.Log(startPoint);
}

if (Input.GetMouseButtonUp(0))
{
endPoint = cam.ScreenToWorldPoint(Input.mousePosition);
endPoint.z = 15;

force = new Vector2(Mathf.Clamp(startPoint.x - endPoint.x, minPower.x, maxPower.x), Mathf.Clamp(startPoint.y - endPoint.y, minPower.y, maxPower.y));
rb.AddForce(force * power, ForceMode2D.Impulse);
}
}


}

Неверно рассчитывается вектор импульса (46 строка)

On dragging it actually control the ball throwing force like( if mouse dragging length is short the force applied on the ball is low competitive the longer drag).

My left ear really enjoyed that one

If you want to make it so you can only drag when the object is still, Then the DragNShoot script will be this:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Movement : MonoBehaviour
{
public float power = 10f;
public Rigidbody2D rb;

public Vector2 minPower;
public Vector2 maxPower;

TragectoryLine tl;

Camera cam;
Vector2 force;
Vector3 startPoint;
Vector3 endPoint;

bool isStill = true;

private void Start()
{
cam = Camera.main;
tl = GetComponent<TragectoryLine>();
}

private void Update()
{
if (rb.velocity == new Vector2(0, 0))
{
isStill = true;
}
else
{
isStill = false;
}

if (Input.GetMouseButtonDown(0) && isStill == true)
{
startPoint = cam.ScreenToWorldPoint(Input.mousePosition);
startPoint.z = 15;
}

if (Input.GetMouseButton(0) && isStill == true)
{
Vector3 currentPoint = cam.ScreenToWorldPoint(Input.mousePosition);
currentPoint.z = 15;
tl.RenderLine(startPoint, currentPoint);
}

if (Input.GetMouseButtonUp(0) && isStill == true)
{
endPoint = cam.ScreenToWorldPoint(Input.mousePosition);
endPoint.z = 15;

force = new Vector2(Mathf.Clamp(startPoint.x - endPoint.x, minPower.x, maxPower.x), Mathf.Clamp(startPoint.y - endPoint.y, minPower.y, maxPower.y));
rb.AddForce(force * power, ForceMode2D.Impulse);

tl.EndLine();


}
}
}

Here I created a bolean called "isStill".
And in the void Update() I made isStill = true if the velocity of the rigid body is = new Vector2(0, 0)
And if its not (else), then isStill = false.
And then for each if statement we made I added (&& isStill ==true) to make sure the object is still to be able to perform this action

What if I want to check is gameObject still? (Cant shoot mid air)...

I subscribed

i want to add cooldown for this shooting thing. please answer and tell us how we can add cooldown for this game please

Cheers
-your lovely followers :)

Dummy question here: I have a ball with 9 child bones( to create the soft body effect). Initially, the script applied only to the rigid body "Ball" had no effect, so I've added the same script also to each bone and it works perfectly. With that said, is there another way of doing it? Not sure if that's the most lean way. Thanks

Thank You For The Tutorial! I Am Working On A Stickman Game And With This I Can Make It Have Unique Movement

idk if you are gonna respond to this because it's been 2 years sience you made this video

but the tutorial is great i just have an issue with it: the players can spam it and they can fly so how do i make like a cooldown system or that if the player stops moving then they can move again or something?

The script worked but the effect would only show a dot

Great Tutorial! But unfortunetly it didn't work for me but you know it's okay, It was good explaining and atleast i learned alot with input, Thank you!

I can't thank you enough, it works, figured the first time didn't work because I got some lines wrong

I just don't understand what's the first parameter in the Mathf.Clamp( ) function and I don't get the use of it. Otherwise, everything else is clear.
Thank You!

When I try to add another line renderer for my player to make it so it has a trail while its moving and its not working. Does anyone know how to fix this?

Also, anytime I drag and shoot and collide with 2 or 3 box collider platforms, the drag and shoot doesnt work. Any fix?

Your video helped me to start developing a game that will be amazing. When I finish and upload it on steam you will get it for free.

Ive 1 to 1 followed the tutorial. The ball doesnt shoot. Help

For some reason didn't work for me . Debug force showing (0,0,0)

here is my code: , I think it's the same as on video


public class dragNShoot : MonoBehaviour
{
public float power;
public Rigidbody2D rb;

public Vector2 minPower;
public Vector2 maxPower;

Camera cam;

Vector2 force;
Vector3 startPoint;
Vector3 endPoint;

private void Start()
{
cam = Camera.main;
}

private void Update()
{
if(Input.GetMouseButtonDown(0))
{

startPoint = cam.ScreenToWorldPoint(Input.mousePosition);
startPoint.z = 15;

}

if (Input.GetMouseButtonUp(0))
{
endPoint = cam.ScreenToWorldPoint(Input.mousePosition);
endPoint.z = 15;

force = new Vector2(Mathf.Clamp(startPoint.x - endPoint.x, minPower.x, maxPower.x), Mathf.Clamp(startPoint.y - endPoint.y, minPower.y, maxPower.y));
rb.AddForce(force * power, ForceMode2D.Impulse);
Debug.Log(force);
}
}
}
**

so i was wondering, how do you make it so you can only use it a certain amount of times when you are in the air and when you touch the ground it resets?

How do I attach the line to the ball so no matter where a touch,it looks like i started from the ball

Awesome tutorial.
First thing i will try tomorrow morning after my round of golf.

Thanks a lot.

This was definitely useful. Thanks a lot for creating this tutorial.

this didn't work for me and i have no idea what to do he tell me the cam doesn't exist

nice tutorial, but how about on a 2d project with perspective camera?

Force = Vector2(Mathf.Clamp(startPoint.x - endPoint.x, minPower.x, maxPower.x), Mathf.Clamp(startPoint.y - endPoint.y, minPower.y, maxPower.y));, this is and error it says u cant use VEctor 2 like a method.

Awesome tutorial!

How to make it limited like 3 shots then its gameover

A great video! Just what I'm looking for, thanks!!

It's a 3D project, but we can change the z value to y value. Thank you very much for making a very useful tutorial. I wish you happiness.

Great Vid! But is there a way you can drag and shoot once until you hit the ground so you won't keep shooting up in the air?

OMG thank you so much, i've tried to do this for 3 days and finally it's working, thank you !

thank you so much Muddy Wolf games. This was really helpful for me!

Great video - thanks!

Thanks

Hey excellent video but I have a question
How do you get the autocomplete and definition thing for unity because when I type it doesn't show all the options you have

heemmmmm why the ball do not move in my variant

Why my player jump in only y axis

Can someone help for some reason the ball only goes in on direction

Hey man, I've really liked your tutorial and it helped me a lot; but can you help me with something? After I added animation to the script the ball only jumps straight in the air, it doesn't jump on the right or left part, do you know any solution for this? Thanks in advance!