koobas.hobune.stream
The question is answered, right answer was accepted
Objects interfering with eachother?
Hello everybody.
I'm somewhat new to Unity and got a problem with controlling my player character. My player character is two sides of a ball, left and right. They should be able to move independently from each other while jumping, but "rolling" should be together. "Rolling" is no problem, but the jumping is. I wanted to avoid using physics, therfore my gameobjects both got a rigidbody attached, gravity = false, is kinematic = true.
Now I wanted to control them with one single script instead of two, one for each side of the ball. I got the following:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerController : MonoBehaviour {
public GameObject left;
public GameObject right;
public bool jumpRightInProgress;
public bool jumpLeftInProgress;
private float jumpSpeed = 0.45f;
private float yVelocity;
private float moveSpeedMultiplier = 8;
private bool doJumpRight = false;
private bool doJumpLeft = false;
void Start () {
jumpLeftInProgress = false;
jumpRightInProgress = false;
}
void FixedUpdate () {
float moveVertical = Input.GetAxis("Vertical");
if (Input.GetKey(KeyCode.D) && right.transform.position.y == 1.0f && !jumpRightInProgress) {
jumpRightInProgress = true;
doJumpRight = true;
}
if (jumpRightInProgress) {
JumpRight(moveVertical);
}
if (Input.GetKey(KeyCode.A) && left.transform.position.y == 1.0f && !jumpLeftInProgress) {
jumpLeftInProgress = true;
doJumpLeft = true;
}
if (jumpLeftInProgress) {
JumpLeft(moveVertical);
}
}
private void JumpRight(float moveVertical) {
if (jumpRightInProgress) {
yVelocity = yVelocity - Time.deltaTime;
float finalVelocity = yVelocity;
if (doJumpRight) {
right.GetComponent<Rigidbody>().MovePosition(new Vector3(right.transform.position.x, right.transform.position.y + finalVelocity, right.transform.position.z + (moveVertical * moveSpeedMultiplier * Time.deltaTime)));
}
if (right.transform.position.y < 1.0f) {
doJumpRight = false;
jumpRightInProgress = false;
right.transform.position = new Vector3(right.transform.position.x, 1.0f, right.transform.position.z + (moveVertical * moveSpeedMultiplier * Time.deltaTime));
yVelocity = jumpSpeed;
}
}
}
private void JumpLeft(float moveVertical) {
if (jumpLeftInProgress) {
yVelocity = yVelocity - Time.deltaTime;
float finalVelocity = yVelocity;
if (doJumpLeft) {
left.GetComponent<Rigidbody>().MovePosition(new Vector3(left.transform.position.x, left.transform.position.y + finalVelocity, left.transform.position.z + (moveVertical * moveSpeedMultiplier * Time.deltaTime)));
}
if (left.transform.position.y < 1.0f) {
doJumpLeft = false;
jumpLeftInProgress = false;
left.transform.position = new Vector3(left.transform.position.x, 1.0f, left.transform.position.z + (moveVertical * moveSpeedMultiplier * Time.deltaTime));
yVelocity = jumpSpeed;
}
}
}
}
In short:
When the object is grounded (y == 1.0f) and no jump is in progress, then call Jump (e.g. right) every fixed update.
In the jump function we're calculating a velocity. 0.45f minus Time.deltaTime and add this to the objects y-axis. The velocity will become smaller by time, so the object well go up until some point and come back down. If the y-axis is below 1.0f, all the bools get deactivated and the object is getting re-setted to y = 1.0f.
This works pretty well for each of the objects (right and left). But when I hit both jump keys simultaneously (A +D at nearly the same time) both of the objects jump only like half the distance, as they do when just one is jumping.
But this isn't my onl y problem. When I jump first with the right object (hitting D) and whie is is airborne and hit A for the other object to jump, the first one (right) will jump again. Like it's ground is getting reset to the current y position. It's hard to describe in english, sorry.
I couldn't find a logical error in my code above. I made sure to deactivate all objects not needed for this script to run. I'm out of ideas. If anybody got an idea, I'd appreciate that.
Kind regards
Nico
Nevermind. I found the error myself. yVelociy was used in both jumping functions. Therefore they were manipulating this variable both, so everything went wonky. Thanks anyway.
