Welcome to this page where I will be showcasing the process of how I coded my racing game. This is a racing game inspired by the classic night rider concept. In this game, players will navigate their way through a halloween themed map and try to finish the race as quick as they can. Get ready to see how I brought my game to life and maybe even pick up some tips and tricks for your own coding projects. Let’s begin!
I utilized Unity’s built-in Wheel Collider component. The Wheel Collider is a specialized collider that is designed to be used on wheeled vehicles.
Many people make the car heavier and tweak a lot of settings to ensure that the car does not fall over when cornering.
To make a more realistic car I wrote code to simulate an anti roll bar. Real cars have this too and it helps to keep the car from leaning too much when it goes around a corner or turn. It connects the left and right wheels on the same axle and creates resistance when the car turns, which helps to keep the car from leaning.
CarController.cs
AntiRollBar.cs
using UnityEngine;
public class AntiRollBar : MonoBehaviour
{
[Header("Wheel Colliders")]
public WheelCollider WheelL;
public WheelCollider WheelR;
[Space(15)]
public float AntiRoll = 5000.0f;
//Simulates a Anti Roll Bar that makes sure the car doesn't flip over.
public void FixedUpdate()
{
WheelHit hit;
float travelL = 1.0f;
float travelR = 1.0f;
bool groundedL = WheelL.GetGroundHit(out hit);
if (groundedL)
travelL = (-WheelL.transform.InverseTransformPoint(hit.point).y - WheelL.radius) / WheelL.suspensionDistance;
bool groundedR = WheelR.GetGroundHit(out hit);
if (groundedR)
travelR = (-WheelR.transform.InverseTransformPoint(hit.point).y - WheelR.radius) / WheelR.suspensionDistance;
float antiRollForce = (travelL - travelR) * AntiRoll;
if (groundedL)
GetComponent().AddForceAtPosition(WheelL.transform.up * -antiRollForce,
WheelL.transform.position);
if (groundedR)
GetComponent().AddForceAtPosition(WheelR.transform.up * antiRollForce,
WheelR.transform.position);
}
}
WaypointSytem.cs
using System.Collections;
using System.Collections.Generic;
using System.Net;
using UnityEngine;
using TMPro;
using UnityEngine.Events;
public class WaypointSystem : MonoBehaviour
{
[SerializeField] private UnityEvent finishedEvent;
[SerializeField] private int laps;
[SerializeField] private GameObject player;
private int amountOfLaps = 0;
private List waypointsList;
private int nextWaypointIndex;
[SerializeField] private TMP_Text lapText;
[SerializeField] private GameObject startPosition;
private void Awake()
{
Time.timeScale = 1;
Transform waypoints = this.transform;
waypointsList = new List();
foreach (Transform singleWaypoint in waypoints)
{
Waypoint waypoint = singleWaypoint.GetComponent();
waypoint.SetTrackWaypoints(this);
waypointsList.Add(waypoint);
}
nextWaypointIndex = 0;
lapText.text = "Lap: " + (amountOfLaps + 1);
}
private void Start()
{
waypointsList[nextWaypointIndex].Show();
player.transform.LookAt(waypointsList[nextWaypointIndex].transform);
}
public void PlayerThroughWaypoint(Waypoint waypoint)
{
if (waypointsList.IndexOf(waypoint) == nextWaypointIndex)
{
if(nextWaypointIndex == waypointsList.Count -1)
{
amountOfLaps++;
if(laps == amountOfLaps)
{
finishedEvent.Invoke();
Time.timeScale = 0;
}
waypointsList[nextWaypointIndex].Hide();
waypointsList[0].Show();
lapText.text = "Lap: " + (amountOfLaps + 1);
}
else
{
waypointsList[nextWaypointIndex + 1].Show();
waypointsList[nextWaypointIndex].Hide();
}
nextWaypointIndex = (nextWaypointIndex + 1) % waypointsList.Count;
}
else
{
Debug.Log("Wrong");
}
}
public void ResetPlayerAtWaypoint()
{
if(nextWaypointIndex == 0)
{
player.transform.LookAt(waypointsList[0].transform.position);
player.transform.position = startPosition.transform.position;
}
else
{
player.transform.position = waypointsList[nextWaypointIndex - 1].transform.position;
player.transform.LookAt(waypointsList[nextWaypointIndex].transform.position);
}
player.GetComponent().Sleep();
}
}
Waypoint.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Waypoint : MonoBehaviour
{
private WaypointSystem system;
private MeshRenderer meshRenderer;
private void Awake()
{
meshRenderer = GetComponent();
Hide();
}
private void OnTriggerEnter(Collider other)
{
if (other.gameObject.CompareTag("Player"))
{
system.PlayerThroughWaypoint(this);
}
}
public void SetTrackWaypoints(WaypointSystem system)
{
this.system = system;
}
public void Show()
{
meshRenderer.enabled = true;
}
public void Hide()
{
meshRenderer.enabled = false;
}
}
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