Question by
vbvbnbbbj · Feb 04, 2021 at 09:16 AM ·
uibutton2d character
Make UI button or Joystick Problem
Hi,
I'm new to unity and have problem with making UI buttons or joystick to move left and right and jump. Can anyone help pls??
I have 2d Character. I put this two scripts in it
How I can modify them to make the 2d character move with UI buttons ?
*Note I use unity 5.6
First one
public class PlayerPlatformerController : PhysicsObject {
public float maxSpeed = 7;
public float jumpTakeOffSpeed = 7;
private SpriteRenderer spriteRenderer;
private Animator animator;
void Awake ()
{
spriteRenderer = GetComponent<SpriteRenderer> ();
animator = GetComponent<Animator> ();
}
protected override void ComputeVelocity()
{
Vector2 move = Vector2.zero;
move.x = Input.GetAxis ("Horizontal");
if (Input.GetButtonDown ("Jump") && grounded) {
velocity.y = jumpTakeOffSpeed;
} else if (Input.GetButtonUp ("Jump"))
{
if (velocity.y > 0) {
velocity.y = velocity.y * 0.5f;
}
}
bool flipSprite = (spriteRenderer.flipX ? (move.x > 0.01f) : (move.x < 0.01f));
if (flipSprite)
{
spriteRenderer.flipX = !spriteRenderer.flipX;
}
animator.SetBool ("grounded", grounded);
animator.SetFloat ("velocityX", Mathf.Abs (velocity.x) / maxSpeed);
targetVelocity = move * maxSpeed;
}
}
The second one
public class PhysicsObject : MonoBehaviour {
public float minGroundNormalY = .65f;
public float gravityModifier = 1f;
protected Vector2 targetVelocity;
protected bool grounded;
protected Vector2 groundNormal;
protected Rigidbody2D rb2d;
protected Vector2 velocity;
protected ContactFilter2D contactFilter;
protected RaycastHit2D[] hitBuffer = new RaycastHit2D[16];
protected List<RaycastHit2D> hitBufferList = new List<RaycastHit2D> (16);
protected const float minMoveDistance = 0.001f;
protected const float shellRadius = 0.01f;
void OnEnable()
{
rb2d = GetComponent<Rigidbody2D> ();
}
void Start ()
{
contactFilter.useTriggers = false;
contactFilter.SetLayerMask (Physics2D.GetLayerCollisionMask (gameObject.layer));
contactFilter.useLayerMask = true;
}
void Update ()
{
targetVelocity = Vector2.zero;
ComputeVelocity ();
}
protected virtual void ComputeVelocity()
{
}
void FixedUpdate()
{
velocity += gravityModifier * Physics2D.gravity * Time.deltaTime;
velocity.x = targetVelocity.x;
grounded = false;
Vector2 deltaPosition = velocity * Time.deltaTime;
Vector2 moveAlongGround = new Vector2 (groundNormal.y, -groundNormal.x);
Vector2 move = moveAlongGround * deltaPosition.x;
Movement (move, false);
move = Vector2.up * deltaPosition.y;
Movement (move, true);
}
void Movement(Vector2 move, bool yMovement)
{
float distance = move.magnitude;
if (distance > minMoveDistance)
{
int count = rb2d.Cast (move, contactFilter, hitBuffer, distance + shellRadius);
hitBufferList.Clear ();
for (int i = 0; i < count; i++) {
hitBufferList.Add (hitBuffer [i]);
}
for (int i = 0; i < hitBufferList.Count; i++)
{
Vector2 currentNormal = hitBufferList [i].normal;
if (currentNormal.y > minGroundNormalY)
{
grounded = true;
if (yMovement)
{
groundNormal = currentNormal;
currentNormal.x = 0;
}
}
float projection = Vector2.Dot (velocity, currentNormal);
if (projection < 0)
{
velocity = velocity - projection * currentNormal;
}
float modifiedDistance = hitBufferList [i].distance - shellRadius;
distance = modifiedDistance < distance ? modifiedDistance : distance;
}
}
rb2d.position = rb2d.position + move.normalized * distance;
}
}
Comment
Answer by KarynaVlad · 5 days ago
Hi, @vbvbnbbbj , now i am study course https://www.html.it/pag/364391/unity-platform-2d-creare-personaggio/ But when i copy create 2 script and copy code, i have 31 errors. My version: First class = class Move:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Move: PhysicsObject
{
public float maxSpeed = 7;
public float jumpTakeOffSpeed = 7;
private SpriteRenderer spriteRenderer;
private Animator animator;
// Use this for initialization
void Awake()
{
spriteRenderer = GetComponent<SpriteRenderer>();
animator = GetComponent<Animator>();
}
protected override void ComputeVelocity()
{
Vector2 move = Vector2.zero;
move.x = Input.GetAxis("Horizontal");
if (Input.GetButtonDown("Jump") && grounded)
{
velocity.y = jumpTakeOffSpeed;
}
else if (Input.GetButtonUp("Jump"))
{
if (velocity.y > 0)
{
velocity.y = velocity.y * 0.5f;
}
}
bool flipSprite = (spriteRenderer.flipX ? (move.x > 0.01f) : (move.x > 0.01f));
if (flipSprite)
{
spriteRenderer.flipX = !spriteRenderer.flipX;
}
animator.SetBool("grounded", grounded);
animator.SetFloat("velocityX", Mathf.Abs(velocity.x) / maxSpeed);
targetVelocity = move * maxSpeed;
}
}
Second class = PhysicsObject:
//Script PhysicsObject
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PhysicsObject : MonoBehaviour
{
public float minGroundNormalY = .65f;
public float gravityModifier = 1f;
protected Vector2 targetVelocity;
protected bool grounded;
protected Vector2 groundNormal;
protected Rigidbody2D rb2d;
protected Vector2 velocity;
protected ContactFilter2D contactFilter;
protected RaycastHit2D[] hitBuffer = new RaycastHit2D[16];
// protected List hitBufferList = new List(16);
protected List<RaycastHit2D> hitBufferList = new List<RaycastHit2D> (16);
protected const float minMoveDistance = 0.001f;
protected const float shellRadius = 0.01f;
void OnEnable()
{
rb2d = GetComponent<Rigidbody2D>();
}
void Start()
{
contactFilter.useTriggers = false;
contactFilter.SetLayerMask(Physics2D.GetLayerCollisionMask(gameObject.layer));
contactFilter.useLayerMask = true;
}
void Update()
{
targetVelocity = Vector2.zero;
ComputeVelocity();
}
protected virtual void ComputeVelocity()
{
}
void FixedUpdate()
{
velocity += gravityModifier * Physics2D.gravity * Time.deltaTime;
velocity.x = targetVelocity.x;
grounded = false;
Vector2 deltaPosition = velocity * Time.deltaTime;
Vector2 moveAlongGround = new Vector2(groundNormal.y, -groundNormal.x);
Vector2 move = moveAlongGround * deltaPosition.x;
Movement(move, false);
move = Vector2.up * deltaPosition.y;
Movement(move, true);
}
void Movement(Vector2 move, bool yMovement)
{
float distance = move.magnitude;
if (distance > minMoveDistance)
{
hitBufferList.Clear();
int count = rb2d.Cast(move, contactFilter, hitBuffer, distance + shellRadius);
for (int i = 0; i < count; i++) {
hitBufferList.Add(hitBuffer[i]);
}
for (int i = 0; i < hitBufferList.Count; i++)
{
Vector2 currentNormal = hitBufferList[i].normal;
if (currentNormal.y > minGroundNormalY)
{
grounded = true;
if (yMovement)
{
groundNormal = currentNormal;
currentNormal.x = 0;
}
}
float projection = Vector2.Dot(velocity, currentNormal);
if (projection < 0)
{
velocity = velocity - projection * currentNormal;
}
float modifiedDistance = hitBufferList[i].distance - shellRadius;
distance = modifiedDistance < distance ? modifiedDistance : distance;
}
}
rb2d.position = rb2d.position + move.normalized * distance;
}
}