koobas.hobune.stream
How to make 2D Player dash towards mouse position in a straight line?
Hi, I'm trying to create a dash similar to the one used in Katana Zero, in which on clicking the mouse button to attack the player does a slight dash in that direction.
// I'm trying to achieve this using AddForce, the code I'm using seems to work but the player seems to move first along the X axis and then up the Y axis towards the mouseclick point. Also, the force added isn't equal at all points, clicking the mouse directly above the player adds a lot more force than when clicking at an angle, and clicking further away from the player adds more force than closer to the player.
Here is my code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class DashToMouse : MonoBehaviour
{
[SerializeField] private float dashSpeed;
[SerializeField] private float startDashTime;
private float dashTime;
private Rigidbody2D rd2d;
private Animator anim;
private Camera cam;
// Start is called before the first frame update
void Start()
{
rd2d = GetComponent<Rigidbody2D>();
anim = GetComponent<Animator>();
cam = Camera.main;
}
private void FixedUpdate()
{
DashToPoint();
}
protected void DashToPoint()
{
if (Input.GetMouseButtonDown(0))
{
Vector3 mousePos = cam.ScreenToWorldPoint(Input.mousePosition);
mousePos.z = 0;
Vector3 difference = mousePos - transform.position;
difference = difference.normalized;
float angle = Mathf.Atan2(difference.y, difference.x) * Mathf.Rad2Deg;
Vector3 dir = Quaternion.AngleAxis(angle, Vector3.forward) * Vector3.right;
dashTime = startDashTime;
while (dashTime > 0)
{
anim.SetTrigger("ground up swipe");
rd2d.AddForce(dir * dashSpeed);
dashTime = dashTime - Time.deltaTime;
}
}
}
}
Any help appreciated, thanks! :)
Well I can help you a bit cause I got the same problem. But remember that my game is top down
void Start()
{
rb = GetComponent<Rigidbody2D>();
}
void Update()
{
float x = Input.GetAxisRaw("Horizontal"); // GetAxisRaw means that when pressed I have 1 or -1immediately
float y = Input.GetAxisRaw("Vertical");
playerPosition = new Vector2(x, y);
if (Input.GetMouseButtonDown(1))
{
DashAbility(x,y);
Debug.Log("Mouse1");
}
Debug.DrawRay(transform.position, mouseDirection, Color.green); // this makes ray(in scene) so I can see where I will teleport
}
void FixedUpdate()
{
rb.velocity = playerPosition * moveSpeed; // this is just my movement
mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
mouseDirection = mousePosition - transform.position;
}
public void DashAbility(float x, float y) // so here I tried to do dragon(from Katana Zaro) dash but I believe that for attack it would be the same
{
rb.velocity = Vector2.zero;
dir = new Vector2(mousePosition.x, mousePosition.y); // remember that mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
transform.position = dir; // the only thing to change is this cause you need to move for an equal ammount of units each time you attack
}
transform.position = dir; // the only thing to change is this cause you need to move for an equal ammount of units each time you attack and not teleport
